Alcator C-Mod Run 1091209 Information

Miniproposals

Miniproposal:

Date Filed:

Title:

First Author:

Session Leader: Steve Wukitch (shots 1-32)

Operators
Session leader(s):	Steve Wukitch
Physics operator(s):	Steve Wolfe
Engineering operator(s):	Bill Parkin,Bill Byford,Gary Dekow

Engineering Operator Run Comment
automatically entered by signon - please replace with real comment

Session Leader Plans

Entered: Dec 8 2009 04:06:36:110PM

Author: Steve Wukitch

1. Establish discharge using 1091124023 as a basis with 2.5 MW from D+E antennas and 2.5 MW from J in heating phase. (5 shots)
Neon may be needed to limit injections and faults.
Raise plasma current to avoid H-mode if needed.
Scan density down to maximize fast ion energy. - monitor Prad/Mo brightness

2. Using developed discharge, scan the J antenna phase with 2.5 MW from D+E, 2.5 MW from J antenna, Ip=0.8 MA and BT~5.2->5.7 T. (6 shots)

3. Scan the J antenna phase in discharges with 2.5 MW from D+E, 1.5 MW from J antenna, and BT~5.2->5.7.(6 shots)

4. Once the critical BT field is identified, perform power ramp to assess power required for sawtooth pacing for fixed BT. Compare different antenna phases (6 shots).
I. Low field side deposition

5. Repeat 2-4 with field scan from 5.2 T down to 4.6 T

Physics Operators Plans

Entered: Dec 8 2009 03:49:42:530PM

Author: Steve Wolfe

Physics Operator Plan and Engineering Setup for Wed Dec 9, 2009
MP#588 Sawtooth Pacing
SL: Wukitch
PO: wolfe

Overnight ECDC in D2
------------------------------
ECDC Parameters
------------------------------
gas and pressure: D2 at 2e-4 Torr
sweep: 44/45/103 cm
scan: 20/120 s

-----------------
Engineering Setup
-----------------

Run begins at 09:00 and ends at 17:00

Power systems as on: 1091123031

Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled

Gas setup:
**** Note non-typical gases for B-side Lower and H-bottom ****

Fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 1 psi Ne Hybrid DISABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
fill H-bottom with 1psi Argon Hybrid DISABLED
fill NINJA with 10 psi D2 DISABLED

Enable gatevalves and shutters: ECE, VUV, HiREX Sr, Z-bolo

Torvac gatevalve toggle (yes/no): NO

Boronization(yes/no): no
Overnight ECDC (yes/no): yes
ICRF(yes/no): yes (all four transmitters)
LH(yes/no): no
Cryopump (yes/no): no

Vessel temperature: 35/35/35
------------------------------------------------------------

Physics Operator Plan:
-----------------------

No Idea! SL Hasn't said what he wants yet.

Session Leader Summaries

Entered: Dec 10 2009 10:12:39:710AM

Author: Steve Wukitch

After struggling through the snow snarled traffic, we struggled to
keep out of H-mode despite calling up a similar discharge from
1091123. Perhaps a cleaner plasma was more susceptable to go into
H-mode or another indication that H minority is a more effective
heating scenario than 3He. At 1 MA, we have a clear difference
between +90 and -90, see 018 and 019 for example. The slow BT ramp
resulted in nice clear ST change as the sawtooth period passed through
q=1 surface as on 026 and 030. We decided to skip to the power scan
to try to get some data on high field side deposition but we were
limited in time. To investigate stabilization/destabilization in the
presence of a stabilizing energetic ion population, the combination of
80 MHz for central deposition with 70 MHz off-axis would be a good
scenario for off-axis, low field side deposition.

Physics Operator Summaries

Entered: Dec 9 2009 05:45:49:500PM

Author: Steve Wolfe

Physics Operator Summary for Wed Dec 9, 2009 MP#588 Sawtooth pacing SL: Wukitch PO: wolfe EO: Pfeiffer, Parkin, Byford, Dekow We got off to a bad start on the MP because we couldn't keep from getting H-modes, and rather high performance H-modes at that, some over 220kJ. Raising the current to 1.3MA was insufficient to stay in L-mode at Prf~4MW. Finally we ended up dropping the RF power. The first eight shots were full length with Ip between 0.8 and 1.3MA, all with at least two H-modes. Reducing density and increasing triangularity did not prevent the H-modes, nor did adding neon and argon. Once the SL made it in after being stuck at home for the first couple hours because of weather-related traffic delays, we were hit with a string of high current (1.3MA) disruptions at about 0.7sec, just as the RF came on. After several of these, Steve delayed the RF and we got the same result, exonerating the RF. Current was then lowered to 1.2MA and the neon puff started at 0.55sec was turned off and full length shots were restored. Moly radiation was rather high, but the plasmas survived and we began to get sawtooth data from the tf sweeps. However, around the same time we started getting bad runaways in the startup, including one shot that actually saturated the solid state hard xray monitor. Raising the pre-fill as high as 50msec on PG4 did not eliminate the runaway problem. I also tried increasing the rcur offset as high as 3000A-m, without notable improvement. I wasted three shots (#20-22) trying helium startup to eliminate the runaways, getting two fizzles and a dud. The fizzles both looked like the pressure was too high, but this may not have been the case. At any rate, we decided to try to live with the runaways and went back to D2 startup on #23. Most of the following shots were successful, although we did have early disruptions on #24 (at 30msec or so), and in the current rise on #28 and 32, and one post-disruption fizzle despite dropping the fill on #29. On some of this last set of shots I left the fill alone after a moderate runaway shot and the subsequent shot actually had lower hard xrays, indicating that perhaps reflexively increasing the puff is not the best response. On the other hand, leaving the puff alone for more than two shots did lead to more runaways on the third. We did manage to get through phase scans at two currents, 1.0 and 1.2MA with the resonance on the low-field side. We got one shot near the end of the day with high-field side resonance, but the tf scan didn't go far enough to cross the q=1 surface, and the second try disrupted early. We had one long (40min) delay in the morning to re-install the FRCECE computer, which had to have a power supply replaced. There was also about a one hour delay in the afternoon to take care of a water leak in the control room ceiling and deal with a failure of the IGT torus ion gauge. At the same time (around shot#20), the logbook database got locked, and we lost a few entries and had some that got the wrong shot numbers. The IGT was not immediately repairable, so Tommy replaced its signal with that from the TMP2 gauge so the diagnostic valve interlocks would function. He is replacing IGT after the run before the boronization tonight. Scorecard: Tests/No Power shots 0 Duds 1 Fizzles & seg1 disrupt 3 Plasmas 28 (20 to rampdown) ================ == Shots 32

Session Leader Comments

Dec 9 2009 09:06:34:823AM 1091209001 Steve Wukitch next: repeat with RF retuned

Dec 9 2009 09:25:26:963AM 1091209002 Steve Wukitch plasma

H-mode, need to work on getting rid of H-modes

next: raise Ip->1 MA

Dec 9 2009 09:28:10:807AM 1091209003 Steve Wukitch plasma

still got H-mode

next: raise current to 1.2 MA, break to install FRCECE computer

Dec 9 2009 10:15:32:917AM 1091209004 Steve Wukitch plasma

still H-modes

next: FRCECE computer still needs work
150 ms neon at 1 psi at 0.55 s
Ar enabled from J bottom for HIREX

Dec 9 2009 11:49:29:527AM 1091209005 Steve Wukitch plasma

still got H-modes
density decreased - still fueling with RF

FRCECE is back - great

next:lower density

Dec 9 2009 11:44:02:400AM 1091209006 Steve Wukitch plasma

still got H-modes
density decreased - still fueling with RF

next: increase Ip to 1.3 MA, lower density

Dec 9 2009 11:38:00:200AM 1091209007 Steve Wukitch plasma

still got H-modes
I-mode precedes H-modes and density increases

next: increase upper triangularity further and lower density

Dec 9 2009 11:35:24:713AM 1091209008 Steve Wukitch plasma

still got H-modes

next: increase upper triangularity further and lower density

Dec 9 2009 11:20:44:743AM 1091209009 Steve Wukitch plasma

disruption before RF

next: repeat minus disruption

Dec 9 2009 12:11:44:200PM 1091209010 Steve Wukitch plasma

disrupted little later

next: retry with adjustment

Dec 9 2009 12:12:09:010PM 1091209011 Steve Wukitch plasma

still disrupting

next: move RF back

Dec 9 2009 12:31:02:497PM 1091209012 Steve Wukitch plasma

still disrupting

next: lower Ip to 1.2 MA

Dec 9 2009 12:51:16:200PM 1091209013 Steve Wukitch plasma

No H-modes!

next: change antenna phase to -90 (270) and raise J power

Dec 9 2009 12:51:58:010PM 1091209014 Steve Wukitch plasma

power supply issue terminated plasma

Dec 9 2009 01:20:12:293PM 1091209015 Steve Wukitch plasma

J3 overloaded - too much anode current

next: retry with different match, add neon 100 ms

Dec 9 2009 01:24:22:543PM 1091209016 Steve Wukitch plasma

good shot, -90deg

next: change antenna phase to +90deg

Dec 9 2009 02:01:26:870PM 1091209017 Steve Wukitch plasma

good shot, -90deg

next: lower plasma current to 1 MA

Dec 9 2009 02:00:17:307PM 1091209018 Steve Wukitch plasma

good shot, -90deg

next: change phase to +90

Dec 9 2009 02:31:24:150PM 1091209019 Steve Wukitch plasma

+90 good shot, definitely different from -90

next: heating phase

Dec 9 2009 02:30:43:527PM 1091209020 Steve Wukitch fizzle - trying to breakdown in He to eliminate runaways

Dec 9 2009 02:34:31:247PM 1091209021 Steve Wukitch dud

Dec 9 2009 03:00:49:487PM 1091209022 Steve Wukitch fizzle

back to D startup

Dec 9 2009 03:02:33:210PM 1091209023 Steve Wukitch plasma

good shot, heating phase

next: 1.2 MA, +90

Dec 9 2009 03:16:00:030PM 1091209024 Steve Wukitch fizzle

Dec 9 2009 03:42:03:610PM 1091209025 Steve Wukitch plasma

good shot, +90, 1.2 MA

next: +90, 1 MA slower scan 5.8-6 T

Dec 9 2009 03:46:18:530PM 1091209026 Steve Wukitch plasma

good shot, st go longest, short, longer

next: change to -90

Dec 9 2009 04:30:39:623PM 1091209029 Steve Wukitch fizzle

Dec 9 2009 04:47:20:483PM 1091209030 Steve Wukitch plasma

good -90, 1 MA, slow BT scan

next: high field side deposition, scan BT 5-4.5 T

Dec 9 2009 04:57:00:000PM 1091209031 Steve Wukitch plasma

minority resonance did not cross q=1

next: sweep from 4.7 T to 4.2 T

Dec 9 2009 05:01:40:360PM 1091209031 Steve Wukitch plasma

early disruption

end of run

Physics Operator Comments

Dec 9 2009 07:25:39:713AM Steve Wolfe
Set up for MP#588 (sawtooth pacing) SL: wukitch Load from 1091124023 per SL_PLAN. Seg1 and 2 active Note that TF waveform for this shot is flat 145kA (5.2T), despite SL email indicating it should have a ramp from 5.2 to 5.7T (158.4kA). Need to check with him when he comes in. Otherwise, program is 1MA, 7e19 with an early blip up to 8e19, USN high triangularity (RXU=-.04, ZXU=+.005. No pg3 feedforward, no Igain on nl04. Seg 1 is 25msec PG4, short pg3, RCUR offset=2000, waveform .60m@.02sec,.64m@.05sec BR_0 offset=.0005 IC_EF4=-1300 No PCS changes to reference shot, pending addition of TF ramp Load at 9-Dec-2009 07:25:30.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done

Dec 9 2009 08:27:19:590AM Steve Wolfe
Re-reading the email from Wukie, I think he intended that the first shot should have a TF ramp, although it doesn't say that in the run plan. Therefore, go ahead and program that in. Seg2: ramp TF from -145ka to -158.4kA between 0.8 and 1.5sec (5.2 to 5.7T); while I'm at it, slow down the rampdown to end 2.7sec Load at 9-Dec-2009 08:27:07.00 Open tree /home/wolfe/pcs_scratch -1

Dec 9 2009 08:45:31:950AM Steve Wolfe
Latest word from Wukie is he wants the current changed from 1MA to 800kA. Does want the TF ramp. Will be calling in from home, because a street blockage is preventing him from getting in. Ip changed from 1MA to 800kA; title of seg2 changed accordingly Load at 9-Dec-2009 08:43:03.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done

Dec 9 2009 09:05:21:980AM 1091209001 Steve Wolfe
Shot#1: Trying for 0.8MA, 7e19, USN, TF ramp from 5.2 to 5.7T, based on 1091124023 (change Ip, TF). PG4 at 25msec, may get runaways. Result: plasma full length, 2 h-modes (unwanted). No runaways. TF ramp gets to 5.64T, probably good enough. RF looks ratty: D faults, J faulting continuously, E ok (1 fault). Next: ???

Dec 9 2009 09:18:34:417AM 1091209002 Steve Wolfe
Shot#2: Repeat after RF retuning on D,J Result: plasma full length, multiple H-modes, no runaways lots of neuts. D is better, J still ragged, E has a few more faults. I don't think Steve wants these H-modes, but not sure how he would prefer to avoid. Raising current seems obvious, but he specifically asked for the change to 800kA. Next: repeat with 4MW total, and go back to 1MA (per Wukie)

Dec 9 2009 09:28:37:290AM 1091209003 Steve Wolfe
Shot#3:repeat with 4MW total, and go back to 1MA (per Wukie on the phone) After this shot there will be an access for Josh to re-install the FRCECE computer. Result: plasma full length some runaways, time to start pushing pg4 up. Still have H-modes. Will go up to 1.2MA for next shot. Next: raise Ip to 1.2MA, pg4 to 30msec

Dec 9 2009 09:48:09:277AM 1091209003 Steve Wolfe
Shot#4: raise Ip to 1.2MA, pg4 from 25 to 30msec Waiting for FRCECE re-install.

Dec 9 2009 10:06:20:417AM 1091209004 Steve Wolfe
Shot#4: raise Ip to 1.2MA, pg4 from 25 to 30msec Waiting for FRCECE re-install. Computer re-installed, but is now hanging midway through reboot. Proceeding... Result: plasma full length , no runaways, three h-modes, middle one over 200kJ Next: Add some neon and argon.

Dec 9 2009 10:21:50:430AM 1091209005 Steve Wolfe
Shot#5: PG1 (150msec from .55 to .70) Neon; PG5 (Argon) from .3 to .375sec No other changes, may want to lower nl04 next. Result: plasma full length, H-modes Next: reduce nl04 flattop to 6e19

Dec 9 2009 10:36:46:823AM 1091209006 Steve Wolfe
Shot#6: lower nl04 from 7 to 6e19 Increase TF ramp from 5.4 to 5.8T, program 150kA to 163kA (should be 161, but it doesn't quite keep up with ramp) Not sure what to do about oh2l coax warning, f.d. settings look ok. Result: plasma full length, with H-modes Next: Drop density again to 5e19, increase Ip to 1.3MA

Dec 9 2009 10:50:57:057AM 1091209007 Steve Wolfe
Shot#7: lower nl04 from 6 to 5e19, max from 8 to 7e19, recalculate custom predictor just in case Ip from 1.2MA to 1.3MA Result: plasma full length, still two H-modes, minimum of q95 is right at 3.0, but it doesn't seem to mind. We're up to 225kJ and 1.5e14neuts (don't want it!) Target density is coming down,but RF is fueling; gas almost off in seg2, can't get it much lower. Next: Try higher triangularity

Dec 9 2009 11:02:40:213AM 1091209008 Steve Wolfe
Shot#8: RXU from -.04 to -.05 plasma full length, still getting H-modes. Triangularity up to .76. H-mode actually seems earlier. Next; Drop nl04 to 4e19, which should turn off the gas entirely. Most likely the best way to stay out of H-mode is to put the TF further off-axis, but that's not consistent with the experiment.

Dec 9 2009 11:22:25:137AM 1091209009 Steve Wolfe
Shot#9:nl04 from 5 to 4e19 RXU from -.05 to -.06 leave pg4 at 30msec Result: early disruption .7sec (in flattop) q95 gets to 2.9, may have been the problem. BP14_DE may have had a problem, reporting an offset of 1.7e-2; it's in DPCS. looks ok during the shot, disruption may have zapped it. Next: back to 5e19 and RXU from -.06 to 0.04; Wukitch will drop D&E power

Dec 9 2009 12:04:16:807PM 1091209010 Steve Wolfe
Shot#10:nl04 from 4 to 5e19 RXU from -.06 to -.04 pg4 from 30 to 27msec TF ramp from 5.6 to 6.0T (155.6 to 168to allow for lag) decrease pg5 from 75 to 50msec Delay for IGT, fixing ceiling leak in control room, while waiting for disruption junk to pump away IGT is dead, no more filaments. We will temporarily move the interlocks for diag valves to one of the turbo gauges, TMP2, otherwise they will not open. Reading on TMP2 is about a factor of two lower, presently 5.6e-7 After 40min... Result: another disruption, same timing, .72sec, just after rf turns on, Next: Put density back up to 6e19, max value back to 8e19

Dec 9 2009 12:14:49:870PM 1091209011 Steve Wolfe
Shot#11:nl04 from 4 to 6e19 (really change it this time) pg4 from 27 to 25msec Result: Same disruption, just after the rf turns on. I don't want to keep running 1.3MA disruptions! There is a flake of something coning in on the zmeter at .025sec, doesn't show up on dalpha or CIII. No runaways. Next: delay rf turn-on. Raise nl04 from 6 to 7e19.

Dec 9 2009 12:30:16:793PM 1091209012 Steve Wolfe
Shot#12:nl04 from 6 to 7e19, delay rf pg4 still at 25msec Result: Still disrupts at 0.69sec, before the RF. Doesn't look like a locked mode, q95 is above 3.1 Next: reduce current to 1.2MA, turn off neon puff

Dec 9 2009 12:39:35:213PM 1091209013 Steve Wolfe
Shot#13:reduce current to 1.2MA, turn off neon and argon puffs Result: plasma full length,with runaways, no H-modes Next: raise pg4, leave plasma alone?

Dec 9 2009 12:54:39:620PM 1091209014 Steve Wolfe
Shot#14:raise pg4 from 25 to 28msec RF will change antenna phase and increase J power Result: runaway saturated early disruption at 0.4sec OH1 crowbar after disruption. Very low density from t=.01, <2e18 at .02sec despite higher puff. Next: pg4 to 30msec

Dec 9 2009 01:08:14:400PM 1091209015 Steve Wolfe
Shot#15:raise pg4 28 to 30msec, rcur offset from 2000 to 2500 RF will change antenna phase and increase J power Result: plasma full length, still some runaways, no h-mode J faulted off after 150msec Next: raise pg4 to 33msec, maybe put back some neon?

Dec 9 2009 01:21:03:073PM 1091209016 Steve Wolfe
Shot#16:raise pg4 from 30 to 33msec neon puff to 100msec (.55 to .65sec) plasma full length, runaways worse. RF ran to 1.4sec, Next: PG4 to 37msec, Rcur offset to 3000

Dec 9 2009 01:35:29:057PM 1091209017 Steve Wolfe
Shot#17:raise pg4 from 33 to 38msec, rcur offset from 2500 to 3000 RF will change phase Result: plasma full length, runaways are worse again! Some injections early as well. Noticed on previous shot that outer gap gets very small between .3 and .55sec, should adjust Next: raise pg4 again, adjust outer gap between .3 and .55sec

Dec 9 2009 02:09:00:543PM 1091209019 Steve Wolfe
Shot#19:move clearin step from .35 to .3sec pg4 from 42 to 45msec plasma full length, still killer runaways, breakdown density is lower! left gap doesn't come in much earlier. Radiated power still bad Next: replace btop with helium4, reduce pg4 to 30msec

Dec 9 2009 02:22:14:840PM 1091209020 Steve Wolfe
Shot#20:replace btop with helium4, reduce pg4 to from 45 to 35msec RF will change to heating phasing. Web-based logbook is failing with mssql resource errors (mine and Wukie's) Hope the entries are really going in. Result: fizzle, looks like pressure too high. Next: pg4 from 35 to 28msec. I hope these entries are going in ok, the IDL logbook seems to be hosed too.

Dec 9 2009 03:10:49:553PM 1091209021 Steve Wolfe
Shot#21: pg4 from 35 to 28msec (helium) Result: dud! Next; pg4 up to 32msec, if this doesn't work, go back to D2

Dec 9 2009 03:11:10:993PM 1091209022 Steve Wolfe
Shot#22: pg4 from 28 to 32msec (helium) rcur offset from 3000 to 2500 if this doesn't work, go back to D2 Result: another fizzle, looks like it's moving in more than #19. Maybe it needs more gas, rather than less, or maybe it's the fields, but can't waste any more time. We were getting something before, so... next: put the D2 back

Dec 9 2009 03:03:04:950PM 1091209023 Steve Wolfe
Shot#23: pg4 from 32 to 40msec (D2) leave rcur offset at 2500 raise pg3 puff in seg1 I expect this one to have runaways again, but we need to at least get some plasmas. result: plasma full length, runaways are bad but it survives and thrives next: back to 1.2MA

Dec 9 2009 03:20:39:360PM 1091209024 Steve Wolfe
Shot#24: Ip from 1 to 1.2MA no seg1 change, let it runaway! Tom says the reason the logbook doesn't know what shot it is has to do with the cycle having lost contact with the database. Gary will need to restart the cycle. Result: runaway burst plasma dies at 38msec. looks like something came in at 25msec. Not sure if I need to raise gas or not Restarting the cycle did not cure the logbook current shot problem, will continue incrementing the shot# manually for entries. Next: pg4 to 42msec

Dec 9 2009 03:32:21:280PM 1091209025 Steve Wolfe
Shot#25: pg4 from 40 to 45msec Ip still at 1.2MA Result: plasma full length,lots of runaways but better than 23. Next: leave it alone

Dec 9 2009 03:44:35:953PM 1091209026 Steve Wolfe
Shot#26: change tf ramp to start at 5.8 (161.1kA)and go to 6T and reduce Ip back to 1MA (so much for leaving it alone) Result: plasma full length, runaways getting better! Score one for benign neglect SL has a result that he likes. Next: RF will switch the phase.

Dec 9 2009 03:56:34:907PM 1091209027 Steve Wolfe
Shot#27: No DPCS changes. RF will switch the phase. Result: plasma full length, with bad runaways again. Benign neglect only works so far. RF wasn't clean, SL wants a repeat Next: Play with clearin program to eliminate thrash around .29sec, think about raising pg4 even more.

Dec 9 2009 04:13:00:280PM 1091209028 Steve Wolfe
Shot#28: Begin clearin change to diverted at .15 instead of .25, still ending at 0.3sec. PG4 from 45 to 50msec. As far as SL is concerned, we're doing a repeat. Result: plasma with runaways disrupts at 0.57sec, before rf. Next: zero the neon, but I don't think that's the problem.

Dec 9 2009 04:21:58:000PM 1091209029 Steve Wolfe
Shot#29: pg4 from 50 to 45msec, zero pg1 (neon) Result: fizzle. Didn't drop fill enough? Next: pg4 down to 40msec

Dec 9 2009 04:34:15:500PM 1091209030 Steve Wolfe
Shot#30: pg4 from 45 to 40msec I expect this to have runaways, but the last fizzle was unexpected, since the disruption was at relatively low current and energy and I had already dropped fill by 10%. Pressure should still be ~0.1mTorr, so I don't think it will be a dud, although the helium window looked narrower than before. The Bz_0 may actually be a bit high. Result: plasma full length, small runaways. Next: TF sweep at low field (high field side resonance)

Dec 9 2009 04:50:10:453PM 1091209031 Steve Wolfe
Shot#31: TF sweep at from 5.0T to 4.5T (138.9 to 125.0kA) Leave pg4 at 40msec, ic_ef4u from -1300 to -1310A Result: plasma with runaways, disrupts in rampdown at 1.7sec no H-mode, one rf fault. Breakdown was no earlier. Next: put ef4 back to -1300, maybe adjust tf ramp?

Dec 9 2009 05:08:15:720PM 1091209032 Steve Wolfe
Shot#32: put ef4 back from -1310 to -1300 Sweep from -130.5 to -116 (4.7 to 4.2T) Result: Short runaway disruption 0.3sec Looks like an injection, no obvious cause; happens at the density dip, but I don't think it's a locked mode. I suspect the runaways are melting the outer limiter and we're getting moly balls. Anyhow, too late to do anything about it now. END OF RUN

Engineering Operator Comments

Shot Time Type Status Comment

1 08:57:48:137AM Plasma Ok

2 09:11:01:057AM Plasma Ok

3 09:24:04:917AM Plasma Ok

4 10:01:02:747AM Plasma Ok

5 10:17:01:917AM Plasma Ok

6 10:30:03:603AM Plasma Ok

7 10:43:30:963AM Plasma Ok

8 10:56:46:090AM Plasma Ok

9 11:12:22:213AM Plasma Ok

10 11:54:51:760AM Plasma Ok

11 12:08:08:150PM Plasma Ok

12 12:21:04:463PM Plasma Ok

13 12:34:26:667PM Plasma Ok

14 12:47:23:120PM Plasma Ok

15 01:03:16:540PM Plasma Ok

16 01:17:03:463PM Plasma Ok

17 01:31:08:400PM Plasma Ok

18 01:44:03:997PM Plasma Ok

19 02:03:42:027PM Plasma Ok

20 02:18:22:933PM Plasma Ok

21 03:27:15:250PM Plasma Ok

22 03:27:32:233PM Plasma Ok

23 03:27:40:327PM Plasma Ok

24 03:27:51:140PM Plasma Ok

25 03:26:01:593PM Plasma Ok

26 03:39:56:907PM Plasma Ok

27 03:52:49:187PM Plasma Ok

28 04:05:30:093PM Plasma Ok

29 04:18:18:920PM Plasma Ok

30 04:31:10:547PM Plasma Ok

31 04:44:48:623PM Plasma Ok

32 04:59:25:983PM Plasma Ok

System Availability

Dec 9 2009 08:57:22:963AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID-FOILS working fine. The LEDGE/DIV foils still need calibrations applied Aug 27 2009 09:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Nov 13 2009 06:37AM (dekow) Jim Irby Boronization dekow,irby
CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Operational Nov 09 2009 09:12AM (irby) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes system is aligned and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC yes Nov 09 2009 09:13AM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE no System down due to computer problems. Dec 08 2009 11:42AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Controller repaired. Aug 23 2009 10:36PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Oct 27 2009 10:39AM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes available at 80 MHz and [0,pi,0,pi] phasing Sep 04 2009 10:01AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes Requires some advance notice for laser start-up Oct 16 2009 12:46PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data. WB1-LY not attached. Aug 27 2009 09:10AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Operating normally Aug 27 2009 09:10AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (labombard) Brian LaBombard Baratron pressure gauges labombard
MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes Power back on morning of 11/09 before run Nov 09 2009 09:10AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. Nov 12 2009 02:36PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,edlund,ennever,ntsujii,porkolab
Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Nov 13 2009 06:38AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes Since 1091112000, 110 channel has been reinstalled. All channels are operational. Nov 12 2009 09:19AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes Sparker back in operation before 11/09 run Nov 09 2009 09:11AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 lasers working. 15 spatial channels operational. Calibrated Oct 13 2009 07:49PM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge yes Operational, and calibrated. Oct 11 2009 03:01PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO yes Operating normally Aug 27 2009 09:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Dec 9 2009 11:11:53:887AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID-FOILS working fine. The LEDGE/DIV foils still need calibrations applied Aug 27 2009 09:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Nov 13 2009 06:37AM (dekow) Jim Irby Boronization dekow,irby
CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Operational Nov 09 2009 09:12AM (irby) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes system is aligned and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC yes Nov 09 2009 09:13AM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes 31 of 32 channels working (Ch29 no signal) Dec 09 2009 11:01AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Controller repaired. Aug 23 2009 10:36PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Oct 27 2009 10:39AM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes available at 80 MHz and [0,pi,0,pi] phasing Sep 04 2009 10:01AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes Requires some advance notice for laser start-up Oct 16 2009 12:46PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data. WB1-LY not attached. Aug 27 2009 09:10AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Operating normally Aug 27 2009 09:10AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (labombard) Brian LaBombard Baratron pressure gauges labombard
MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes Power back on morning of 11/09 before run Nov 09 2009 09:10AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. Nov 12 2009 02:36PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,edlund,ennever,ntsujii,porkolab
Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Nov 13 2009 06:38AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes Since 1091112000, 110 channel has been reinstalled. All channels are operational. Nov 12 2009 09:19AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes Sparker back in operation before 11/09 run Nov 09 2009 09:11AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 lasers working. 15 spatial channels operational. Calibrated Oct 13 2009 07:49PM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge yes Operational, and calibrated. Oct 11 2009 03:01PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO yes Operating normally Aug 27 2009 09:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Dec 9 2009 03:39:33:000PM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID-FOILS working fine. The LEDGE/DIV foils still need calibrations applied Aug 27 2009 09:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Nov 13 2009 06:37AM (dekow) Jim Irby Boronization dekow,irby
CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Operational Nov 09 2009 09:12AM (irby) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes system is aligned and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC yes Nov 09 2009 09:13AM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes 31 of 32 channels working (Ch29 no signal) Dec 09 2009 11:01AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Controller repaired. Aug 23 2009 10:36PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Oct 27 2009 10:39AM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes available at 80 MHz and [0,pi,0,pi] phasing Sep 04 2009 10:01AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes Requires some advance notice for laser start-up Oct 16 2009 12:46PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data. WB1-LY not attached. Aug 27 2009 09:10AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Operating normally Aug 27 2009 09:10AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (labombard) Brian LaBombard Baratron pressure gauges labombard
MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes Power back on morning of 11/09 before run Nov 09 2009 09:10AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. Nov 12 2009 02:36PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,edlund,ennever,ntsujii,porkolab
Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Nov 13 2009 06:38AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes Since 1091112000, 110 channel has been reinstalled. All channels are operational. Nov 12 2009 09:19AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes Sparker back in operation before 11/09 run Nov 09 2009 09:11AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 lasers working. 15 spatial channels operational. Calibrated Oct 13 2009 07:49PM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge yes Operational, and calibrated. Oct 11 2009 03:01PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO yes Operating normally Aug 27 2009 09:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Dec 9 2009 03:52:24:390PM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID-FOILS working fine. The LEDGE/DIV foils still need calibrations applied Aug 27 2009 09:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Nov 13 2009 06:37AM (dekow) Jim Irby Boronization dekow,irby
CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Operational Nov 09 2009 09:12AM (irby) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes system is aligned and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC yes Nov 09 2009 09:13AM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes 31 of 32 channels working (Ch29 no signal) Dec 09 2009 11:01AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Controller repaired. Aug 23 2009 10:36PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Oct 27 2009 10:39AM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes available at 80 MHz and [0,pi,0,pi] phasing Sep 04 2009 10:01AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes Requires some advance notice for laser start-up Oct 16 2009 12:46PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data. WB1-LY not attached. Aug 27 2009 09:10AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Operating normally Aug 27 2009 09:10AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (labombard) Brian LaBombard Baratron pressure gauges labombard
MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes Power back on morning of 11/09 before run Nov 09 2009 09:10AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. Nov 12 2009 02:36PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,edlund,ennever,ntsujii,porkolab
Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Nov 13 2009 06:38AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes Since 1091112000, 110 channel has been reinstalled. All channels are operational. Nov 12 2009 09:19AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes Sparker back in operation before 11/09 run Nov 09 2009 09:11AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 lasers working. 15 spatial channels operational. Calibrated Oct 13 2009 07:49PM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge yes Operational, and calibrated. Oct 11 2009 03:01PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO yes Operating normally Aug 27 2009 09:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Dec 9 2009 09:06:34:823AM	1091209001	Steve Wukitch	next: repeat with RF retuned
Dec 9 2009 09:25:26:963AM	1091209002	Steve Wukitch	plasma H-mode, need to work on getting rid of H-modes next: raise Ip->1 MA
Dec 9 2009 09:28:10:807AM	1091209003	Steve Wukitch	plasma still got H-mode next: raise current to 1.2 MA, break to install FRCECE computer
Dec 9 2009 10:15:32:917AM	1091209004	Steve Wukitch	plasma still H-modes next: FRCECE computer still needs work 150 ms neon at 1 psi at 0.55 s Ar enabled from J bottom for HIREX
Dec 9 2009 11:49:29:527AM	1091209005	Steve Wukitch	plasma still got H-modes density decreased - still fueling with RF FRCECE is back - great next:lower density
Dec 9 2009 11:44:02:400AM	1091209006	Steve Wukitch	plasma still got H-modes density decreased - still fueling with RF next: increase Ip to 1.3 MA, lower density
Dec 9 2009 11:38:00:200AM	1091209007	Steve Wukitch	plasma still got H-modes I-mode precedes H-modes and density increases next: increase upper triangularity further and lower density
Dec 9 2009 11:35:24:713AM	1091209008	Steve Wukitch	plasma still got H-modes next: increase upper triangularity further and lower density
Dec 9 2009 11:20:44:743AM	1091209009	Steve Wukitch	plasma disruption before RF next: repeat minus disruption
Dec 9 2009 12:11:44:200PM	1091209010	Steve Wukitch	plasma disrupted little later next: retry with adjustment
Dec 9 2009 12:12:09:010PM	1091209011	Steve Wukitch	plasma still disrupting next: move RF back
Dec 9 2009 12:31:02:497PM	1091209012	Steve Wukitch	plasma still disrupting next: lower Ip to 1.2 MA
Dec 9 2009 12:51:16:200PM	1091209013	Steve Wukitch	plasma No H-modes! next: change antenna phase to -90 (270) and raise J power
Dec 9 2009 12:51:58:010PM	1091209014	Steve Wukitch	plasma power supply issue terminated plasma
Dec 9 2009 01:20:12:293PM	1091209015	Steve Wukitch	plasma J3 overloaded - too much anode current next: retry with different match, add neon 100 ms
Dec 9 2009 01:24:22:543PM	1091209016	Steve Wukitch	plasma good shot, -90deg next: change antenna phase to +90deg
Dec 9 2009 02:01:26:870PM	1091209017	Steve Wukitch	plasma good shot, -90deg next: lower plasma current to 1 MA
Dec 9 2009 02:00:17:307PM	1091209018	Steve Wukitch	plasma good shot, -90deg next: change phase to +90
Dec 9 2009 02:31:24:150PM	1091209019	Steve Wukitch	plasma +90 good shot, definitely different from -90 next: heating phase
Dec 9 2009 02:30:43:527PM	1091209020	Steve Wukitch	fizzle - trying to breakdown in He to eliminate runaways
Dec 9 2009 02:34:31:247PM	1091209021	Steve Wukitch	dud
Dec 9 2009 03:00:49:487PM	1091209022	Steve Wukitch	fizzle back to D startup
Dec 9 2009 03:02:33:210PM	1091209023	Steve Wukitch	plasma good shot, heating phase next: 1.2 MA, +90
Dec 9 2009 03:16:00:030PM	1091209024	Steve Wukitch	fizzle
Dec 9 2009 03:42:03:610PM	1091209025	Steve Wukitch	plasma good shot, +90, 1.2 MA next: +90, 1 MA slower scan 5.8-6 T
Dec 9 2009 03:46:18:530PM	1091209026	Steve Wukitch	plasma good shot, st go longest, short, longer next: change to -90
Dec 9 2009 04:30:39:623PM	1091209029	Steve Wukitch	fizzle
Dec 9 2009 04:47:20:483PM	1091209030	Steve Wukitch	plasma good -90, 1 MA, slow BT scan next: high field side deposition, scan BT 5-4.5 T
Dec 9 2009 04:57:00:000PM	1091209031	Steve Wukitch	plasma minority resonance did not cross q=1 next: sweep from 4.7 T to 4.2 T
Dec 9 2009 05:01:40:360PM	1091209031	Steve Wukitch	plasma early disruption end of run

Physics Operator Comments
Dec 9 2009 07:25:39:713AM		Steve Wolfe	Set up for MP#588 (sawtooth pacing) SL: wukitch Load from 1091124023 per SL_PLAN. Seg1 and 2 active Note that TF waveform for this shot is flat 145kA (5.2T), despite SL email indicating it should have a ramp from 5.2 to 5.7T (158.4kA). Need to check with him when he comes in. Otherwise, program is 1MA, 7e19 with an early blip up to 8e19, USN high triangularity (RXU=-.04, ZXU=+.005. No pg3 feedforward, no Igain on nl04. Seg 1 is 25msec PG4, short pg3, RCUR offset=2000, waveform .60m@.02sec,.64m@.05sec BR_0 offset=.0005 IC_EF4=-1300 No PCS changes to reference shot, pending addition of TF ramp Load at 9-Dec-2009 07:25:30.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done
Dec 9 2009 08:27:19:590AM		Steve Wolfe	Re-reading the email from Wukie, I think he intended that the first shot should have a TF ramp, although it doesn't say that in the run plan. Therefore, go ahead and program that in. Seg2: ramp TF from -145ka to -158.4kA between 0.8 and 1.5sec (5.2 to 5.7T); while I'm at it, slow down the rampdown to end 2.7sec Load at 9-Dec-2009 08:27:07.00 Open tree /home/wolfe/pcs_scratch -1
Dec 9 2009 08:45:31:950AM		Steve Wolfe	Latest word from Wukie is he wants the current changed from 1MA to 800kA. Does want the TF ramp. Will be calling in from home, because a street blockage is preventing him from getting in. Ip changed from 1MA to 800kA; title of seg2 changed accordingly Load at 9-Dec-2009 08:43:03.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done
Dec 9 2009 09:05:21:980AM	1091209001	Steve Wolfe	Shot#1: Trying for 0.8MA, 7e19, USN, TF ramp from 5.2 to 5.7T, based on 1091124023 (change Ip, TF). PG4 at 25msec, may get runaways. Result: plasma full length, 2 h-modes (unwanted). No runaways. TF ramp gets to 5.64T, probably good enough. RF looks ratty: D faults, J faulting continuously, E ok (1 fault). Next: ???
Dec 9 2009 09:18:34:417AM	1091209002	Steve Wolfe	Shot#2: Repeat after RF retuning on D,J Result: plasma full length, multiple H-modes, no runaways lots of neuts. D is better, J still ragged, E has a few more faults. I don't think Steve wants these H-modes, but not sure how he would prefer to avoid. Raising current seems obvious, but he specifically asked for the change to 800kA. Next: repeat with 4MW total, and go back to 1MA (per Wukie)
Dec 9 2009 09:28:37:290AM	1091209003	Steve Wolfe	Shot#3:repeat with 4MW total, and go back to 1MA (per Wukie on the phone) After this shot there will be an access for Josh to re-install the FRCECE computer. Result: plasma full length some runaways, time to start pushing pg4 up. Still have H-modes. Will go up to 1.2MA for next shot. Next: raise Ip to 1.2MA, pg4 to 30msec
Dec 9 2009 09:48:09:277AM	1091209003	Steve Wolfe	Shot#4: raise Ip to 1.2MA, pg4 from 25 to 30msec Waiting for FRCECE re-install.
Dec 9 2009 10:06:20:417AM	1091209004	Steve Wolfe	Shot#4: raise Ip to 1.2MA, pg4 from 25 to 30msec Waiting for FRCECE re-install. Computer re-installed, but is now hanging midway through reboot. Proceeding... Result: plasma full length , no runaways, three h-modes, middle one over 200kJ Next: Add some neon and argon.
Dec 9 2009 10:21:50:430AM	1091209005	Steve Wolfe	Shot#5: PG1 (150msec from .55 to .70) Neon; PG5 (Argon) from .3 to .375sec No other changes, may want to lower nl04 next. Result: plasma full length, H-modes Next: reduce nl04 flattop to 6e19
Dec 9 2009 10:36:46:823AM	1091209006	Steve Wolfe	Shot#6: lower nl04 from 7 to 6e19 Increase TF ramp from 5.4 to 5.8T, program 150kA to 163kA (should be 161, but it doesn't quite keep up with ramp) Not sure what to do about oh2l coax warning, f.d. settings look ok. Result: plasma full length, with H-modes Next: Drop density again to 5e19, increase Ip to 1.3MA
Dec 9 2009 10:50:57:057AM	1091209007	Steve Wolfe	Shot#7: lower nl04 from 6 to 5e19, max from 8 to 7e19, recalculate custom predictor just in case Ip from 1.2MA to 1.3MA Result: plasma full length, still two H-modes, minimum of q95 is right at 3.0, but it doesn't seem to mind. We're up to 225kJ and 1.5e14neuts (don't want it!) Target density is coming down,but RF is fueling; gas almost off in seg2, can't get it much lower. Next: Try higher triangularity
Dec 9 2009 11:02:40:213AM	1091209008	Steve Wolfe	Shot#8: RXU from -.04 to -.05 plasma full length, still getting H-modes. Triangularity up to .76. H-mode actually seems earlier. Next; Drop nl04 to 4e19, which should turn off the gas entirely. Most likely the best way to stay out of H-mode is to put the TF further off-axis, but that's not consistent with the experiment.
Dec 9 2009 11:22:25:137AM	1091209009	Steve Wolfe	Shot#9:nl04 from 5 to 4e19 RXU from -.05 to -.06 leave pg4 at 30msec Result: early disruption .7sec (in flattop) q95 gets to 2.9, may have been the problem. BP14_DE may have had a problem, reporting an offset of 1.7e-2; it's in DPCS. looks ok during the shot, disruption may have zapped it. Next: back to 5e19 and RXU from -.06 to 0.04; Wukitch will drop D&E power
Dec 9 2009 12:04:16:807PM	1091209010	Steve Wolfe	Shot#10:nl04 from 4 to 5e19 RXU from -.06 to -.04 pg4 from 30 to 27msec TF ramp from 5.6 to 6.0T (155.6 to 168to allow for lag) decrease pg5 from 75 to 50msec Delay for IGT, fixing ceiling leak in control room, while waiting for disruption junk to pump away IGT is dead, no more filaments. We will temporarily move the interlocks for diag valves to one of the turbo gauges, TMP2, otherwise they will not open. Reading on TMP2 is about a factor of two lower, presently 5.6e-7 After 40min... Result: another disruption, same timing, .72sec, just after rf turns on, Next: Put density back up to 6e19, max value back to 8e19
Dec 9 2009 12:14:49:870PM	1091209011	Steve Wolfe	Shot#11:nl04 from 4 to 6e19 (really change it this time) pg4 from 27 to 25msec Result: Same disruption, just after the rf turns on. I don't want to keep running 1.3MA disruptions! There is a flake of something coning in on the zmeter at .025sec, doesn't show up on dalpha or CIII. No runaways. Next: delay rf turn-on. Raise nl04 from 6 to 7e19.
Dec 9 2009 12:30:16:793PM	1091209012	Steve Wolfe	Shot#12:nl04 from 6 to 7e19, delay rf pg4 still at 25msec Result: Still disrupts at 0.69sec, before the RF. Doesn't look like a locked mode, q95 is above 3.1 Next: reduce current to 1.2MA, turn off neon puff
Dec 9 2009 12:39:35:213PM	1091209013	Steve Wolfe	Shot#13:reduce current to 1.2MA, turn off neon and argon puffs Result: plasma full length,with runaways, no H-modes Next: raise pg4, leave plasma alone?
Dec 9 2009 12:54:39:620PM	1091209014	Steve Wolfe	Shot#14:raise pg4 from 25 to 28msec RF will change antenna phase and increase J power Result: runaway saturated early disruption at 0.4sec OH1 crowbar after disruption. Very low density from t=.01, <2e18 at .02sec despite higher puff. Next: pg4 to 30msec
Dec 9 2009 01:08:14:400PM	1091209015	Steve Wolfe	Shot#15:raise pg4 28 to 30msec, rcur offset from 2000 to 2500 RF will change antenna phase and increase J power Result: plasma full length, still some runaways, no h-mode J faulted off after 150msec Next: raise pg4 to 33msec, maybe put back some neon?
Dec 9 2009 01:21:03:073PM	1091209016	Steve Wolfe	Shot#16:raise pg4 from 30 to 33msec neon puff to 100msec (.55 to .65sec) plasma full length, runaways worse. RF ran to 1.4sec, Next: PG4 to 37msec, Rcur offset to 3000
Dec 9 2009 01:35:29:057PM	1091209017	Steve Wolfe	Shot#17:raise pg4 from 33 to 38msec, rcur offset from 2500 to 3000 RF will change phase Result: plasma full length, runaways are worse again! Some injections early as well. Noticed on previous shot that outer gap gets very small between .3 and .55sec, should adjust Next: raise pg4 again, adjust outer gap between .3 and .55sec
Dec 9 2009 02:09:00:543PM	1091209019	Steve Wolfe	Shot#19:move clearin step from .35 to .3sec pg4 from 42 to 45msec plasma full length, still killer runaways, breakdown density is lower! left gap doesn't come in much earlier. Radiated power still bad Next: replace btop with helium4, reduce pg4 to 30msec
Dec 9 2009 02:22:14:840PM	1091209020	Steve Wolfe	Shot#20:replace btop with helium4, reduce pg4 to from 45 to 35msec RF will change to heating phasing. Web-based logbook is failing with mssql resource errors (mine and Wukie's) Hope the entries are really going in. Result: fizzle, looks like pressure too high. Next: pg4 from 35 to 28msec. I hope these entries are going in ok, the IDL logbook seems to be hosed too.
Dec 9 2009 03:10:49:553PM	1091209021	Steve Wolfe	Shot#21: pg4 from 35 to 28msec (helium) Result: dud! Next; pg4 up to 32msec, if this doesn't work, go back to D2
Dec 9 2009 03:11:10:993PM	1091209022	Steve Wolfe	Shot#22: pg4 from 28 to 32msec (helium) rcur offset from 3000 to 2500 if this doesn't work, go back to D2 Result: another fizzle, looks like it's moving in more than #19. Maybe it needs more gas, rather than less, or maybe it's the fields, but can't waste any more time. We were getting something before, so... next: put the D2 back
Dec 9 2009 03:03:04:950PM	1091209023	Steve Wolfe	Shot#23: pg4 from 32 to 40msec (D2) leave rcur offset at 2500 raise pg3 puff in seg1 I expect this one to have runaways again, but we need to at least get some plasmas. result: plasma full length, runaways are bad but it survives and thrives next: back to 1.2MA
Dec 9 2009 03:20:39:360PM	1091209024	Steve Wolfe	Shot#24: Ip from 1 to 1.2MA no seg1 change, let it runaway! Tom says the reason the logbook doesn't know what shot it is has to do with the cycle having lost contact with the database. Gary will need to restart the cycle. Result: runaway burst plasma dies at 38msec. looks like something came in at 25msec. Not sure if I need to raise gas or not Restarting the cycle did not cure the logbook current shot problem, will continue incrementing the shot# manually for entries. Next: pg4 to 42msec
Dec 9 2009 03:32:21:280PM	1091209025	Steve Wolfe	Shot#25: pg4 from 40 to 45msec Ip still at 1.2MA Result: plasma full length,lots of runaways but better than 23. Next: leave it alone
Dec 9 2009 03:44:35:953PM	1091209026	Steve Wolfe	Shot#26: change tf ramp to start at 5.8 (161.1kA)and go to 6T and reduce Ip back to 1MA (so much for leaving it alone) Result: plasma full length, runaways getting better! Score one for benign neglect SL has a result that he likes. Next: RF will switch the phase.
Dec 9 2009 03:56:34:907PM	1091209027	Steve Wolfe	Shot#27: No DPCS changes. RF will switch the phase. Result: plasma full length, with bad runaways again. Benign neglect only works so far. RF wasn't clean, SL wants a repeat Next: Play with clearin program to eliminate thrash around .29sec, think about raising pg4 even more.
Dec 9 2009 04:13:00:280PM	1091209028	Steve Wolfe	Shot#28: Begin clearin change to diverted at .15 instead of .25, still ending at 0.3sec. PG4 from 45 to 50msec. As far as SL is concerned, we're doing a repeat. Result: plasma with runaways disrupts at 0.57sec, before rf. Next: zero the neon, but I don't think that's the problem.
Dec 9 2009 04:21:58:000PM	1091209029	Steve Wolfe	Shot#29: pg4 from 50 to 45msec, zero pg1 (neon) Result: fizzle. Didn't drop fill enough? Next: pg4 down to 40msec
Dec 9 2009 04:34:15:500PM	1091209030	Steve Wolfe	Shot#30: pg4 from 45 to 40msec I expect this to have runaways, but the last fizzle was unexpected, since the disruption was at relatively low current and energy and I had already dropped fill by 10%. Pressure should still be ~0.1mTorr, so I don't think it will be a dud, although the helium window looked narrower than before. The Bz_0 may actually be a bit high. Result: plasma full length, small runaways. Next: TF sweep at low field (high field side resonance)
Dec 9 2009 04:50:10:453PM	1091209031	Steve Wolfe	Shot#31: TF sweep at from 5.0T to 4.5T (138.9 to 125.0kA) Leave pg4 at 40msec, ic_ef4u from -1300 to -1310A Result: plasma with runaways, disrupts in rampdown at 1.7sec no H-mode, one rf fault. Breakdown was no earlier. Next: put ef4 back to -1300, maybe adjust tf ramp?
Dec 9 2009 05:08:15:720PM	1091209032	Steve Wolfe	Shot#32: put ef4 back from -1310 to -1300 Sweep from -130.5 to -116 (4.7 to 4.2T) Result: Short runaway disruption 0.3sec Looks like an injection, no obvious cause; happens at the density dip, but I don't think it's a locked mode. I suspect the runaways are melting the outer limiter and we're getting moly balls. Anyhow, too late to do anything about it now. END OF RUN

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:57:48:137AM	Plasma	Ok
2	09:11:01:057AM	Plasma	Ok
3	09:24:04:917AM	Plasma	Ok
4	10:01:02:747AM	Plasma	Ok
5	10:17:01:917AM	Plasma	Ok
6	10:30:03:603AM	Plasma	Ok
7	10:43:30:963AM	Plasma	Ok
8	10:56:46:090AM	Plasma	Ok
9	11:12:22:213AM	Plasma	Ok
10	11:54:51:760AM	Plasma	Ok
11	12:08:08:150PM	Plasma	Ok
12	12:21:04:463PM	Plasma	Ok
13	12:34:26:667PM	Plasma	Ok
14	12:47:23:120PM	Plasma	Ok
15	01:03:16:540PM	Plasma	Ok
16	01:17:03:463PM	Plasma	Ok
17	01:31:08:400PM	Plasma	Ok
18	01:44:03:997PM	Plasma	Ok
19	02:03:42:027PM	Plasma	Ok
20	02:18:22:933PM	Plasma	Ok
21	03:27:15:250PM	Plasma	Ok
22	03:27:32:233PM	Plasma	Ok
23	03:27:40:327PM	Plasma	Ok
24	03:27:51:140PM	Plasma	Ok
25	03:26:01:593PM	Plasma	Ok
26	03:39:56:907PM	Plasma	Ok
27	03:52:49:187PM	Plasma	Ok
28	04:05:30:093PM	Plasma	Ok
29	04:18:18:920PM	Plasma	Ok
30	04:31:10:547PM	Plasma	Ok
31	04:44:48:623PM	Plasma	Ok
32	04:59:25:983PM	Plasma	Ok