Alcator C-Mod Run 1100723 Information

Miniproposals

Miniproposal: 355b

Date Filed: 6/15/2010

Title: ICRF Testing and Conditioning, with Detection of Mode-Conversion Location

First Author: Steve Wukitch

Session Leader: Yijun Lin (shots 1-32)

Operators
Session leader(s):	Yijun Lin
Physics operator(s):	Steve Wolfe
Engineering operator(s):	Bill Parkin,Andy Pfeiffer,Gary Dekow

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

Session Leader Plans

Entered: Jul 22 2010 11:04:44:687AM

Author: Yijun Lin

Run plan: (similar to run 1100702)

Start from 1100702001, 5.4 T, 800 kA, nl=0.8e20 m^-2. If we find excessive heating on GH or K limiter, or on the ramped divertor tiles, we may change to an inner wall limited discharge, or raise the density.

We will start with the antennas running at separate times with J
receiving a larger fraction of the available time. If the antennas behave reasonably, we will overlap all the antennas.

Depending on the progress of conditioning (number of faults, max voltage and power handling, antenna cross-coupling, etc), we may vary plasma density, current, plasma shape, and outer gap.

If the H/D level is still rather high, we will raise B field in order for PCI to see the mode conversion layer.

Physics Operators Plans

Entered: Jul 22 2010 02:23:59:563PM

Author: Steve Wolfe

Physics Operator Plan and Engineering Setup for Friday, July 23, 2010
MP#355b ICRF Conditioning (plus MC localization)
SL: Y. Lin
PO: wolfe

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

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

Power systems as on: 1100702001, EXCEPT: TF current limit at 175kA

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

Gas setup:

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

Enable gatevalves and shutters: ECE, VUV, HiREX Sr, B-Spectrometer
(Z-bolo shutter is forced open)

Torvac gatevalve toggle (yes/no): no

Boronization(yes/no): no
Overnight ECDC (yes/no): YES
ICRF(yes/no): YES
LH(yes/no): no
Cryopump (yes/no): NO

Vessel temperature: 45/45/45
==============================================================
Physics Operator Plan:
-----------------------

Start with 1100702001, 5.4 T, 800 kA, nl=0.8e20 m-2, LSN.
If we find excessive heating on GH or K limiter, or on the ramped divertor tiles, we may change to an inner wall limited discharge, or raise the density.

Follow the SL plan for staging the ICRF, concentrating on getting J-port
working reliably. Vary target plasma parameters to taste (of SL). Depending
on H/D, we may raise the B-field to see MC in PCI.

Session Leader Summaries

Entered: Jul 26 2010 10:04:34:387AM

Author: Yijun Lin

D and E antennas have been conditioned up to 1.5 MW each, and ran overlapped.
J antenna have been reasonably good up to 1 MW level, but struggling beyond this power level.

H/(H+D) started below 10% (and H-modes were obtained), then rose to 20% later in the day.

Physics Operator Summaries

Entered: Jul 23 2010 05:08:07:620PM

Author: Steve Wolfe

Physop Summary for Friday, July 23, 2010 MP#355b ICRF conditioning and MC localization w/PCI SL: Lin PO: wolfe EO: Parkin, Pfeiffer, Dekow The machine ran well today, and some slow progress was made on the RF conditioning, but J-port is still struggling. On the first couple of shots we actually got some heating from D and E, and got some brief H-modes. The H fraction came up over the course of the run, and the heating pretty much went away. The best shot from J port was the last, which managed some sustained operation at 1.2MW. D and E ran separately around 1.5MW, but were having trouble running together. We ran 800kA, 8e19, LSN discharges all day. I played a little with sweeping the strike point up the plate to spread what heat there was. After starting at 5.4T, we changed to 5.8T at shot#4 for the PCI, and left it at that value the rest of the day. Cooling was slow, and at shot#10 we moved the f.d. off gate to 1.8sec so that full shots wouldn't go back to 5.4T and increase the I2t, since we were strongly double swinging anyway. The coax resistance was not affected by this change. Scorecard: Tests 1 Duds 0 Fizzles 0 Plasmas 31 ======== == Shots 32 Total plasma duration: 53.62 s

Session Leader Comments

Jul 23 2010 09:03:15:287AM 1100723001 Yijun Lin no power shot.

Jul 23 2010 09:28:07:353AM 1100723002 Yijun Lin Got H-mode. D and E ran fine.
J was miserable.
Next: Overlap D+E to 1.6 MW.
J by itself.
Also added strike point sweep (for higher RF power)

Jul 23 2010 09:37:22:080AM 1100723003 Yijun Lin D and E ran fine. J better
Next: Run J earlier than D+E. Max total power 1.6 MW.
Also raise field to 5.8 T for PCI measurement.

Jul 23 2010 09:47:33:053AM 1100723004 Yijun Lin J was bad. D was bad. E was fine.
Next: Separate J3 and J4. Lower E power (and see if D is better).

Jul 23 2010 10:00:56:887AM 1100723005 Yijun Lin J ran.
D ran.
E had no power. No gate signal due to FFT2 fault.
Next: repeat.

Jul 23 2010 10:16:18:147AM 1100723006 Yijun Lin J ran. J4 still struggling.
D ran. matching bad.
E ran.
Next: repeat. Lower J4 power to let it run. (also tune J4). Also lower D power.

Jul 23 2010 10:30:46:327AM 1100723007 Yijun Lin J ran. J4 mismatched.
D ran. matching bad.
E ran.
Next: repeat. Raise J3 power. tune D and J4.

Jul 23 2010 10:47:09:130AM 1100723008 Yijun Lin J ran. J4 ran.
D ran. (its matching changes in the shot).
E ran.
Next: repeat. Raise J4 power. Raise D power.

Jul 23 2010 11:08:36:633AM 1100723009 Yijun Lin Only E ran.
All others had matching problem.
Next: change the order of antennas

Jul 23 2010 11:23:01:697AM 1100723010 Yijun Lin D mismatched.
J ran.
E ran.
Next: overlap J3/J4. Tune D.

Jul 23 2010 11:39:51:677AM 1100723011 Yijun Lin D ran, but the matching walked away.
J ran. j4 mismatched.
E ran.
Next: tune D and J4. repeat.

Jul 23 2010 11:54:19:080AM 1100723012 Yijun Lin D ran,
J ran. struggling.
E ran.
Next: Raise D power. Tune J4.

Jul 23 2010 12:11:32:523PM 1100723013 Yijun Lin D ran,
J ran. ran at high power. but J4 matching is not good.
E ran.
Next: Raise D power, lengthen J waveform. Tune J4.

Jul 23 2010 12:52:38:907PM 1100723016 Yijun Lin D ran,
J ran. still struggling, but the matching is ok.
E ran.
Next: repeat.

Jul 23 2010 01:14:16:013PM 1100723017 Yijun Lin D ran,
J ran. better than last shots (but worse when D was on).
E ran.
Next: repeat.raise D and E power.

Jul 23 2010 01:28:25:833PM 1100723018 Yijun Lin D ran, to 1.2 MW.
J ran. better
E ran.to 1.5 MW
Next: repeat.

Jul 23 2010 01:43:12:113PM 1100723019 Yijun Lin Plasma. disrupted 1.2 sec. (Mo + W)
D ran,
J ran. better
Next: repeat.

Jul 23 2010 02:03:23:600PM 1100723020 Yijun Lin Plasma.
D ran, faulted when overlapped with E. up to 1.4 MW.
J ran. better. Good at 0.6 MW. faulting at 1.2 MW.
E ran. good to 1.5 MW.
Next: repeat. (make low power part longer for J).

Jul 23 2010 02:20:02:913PM 1100723021 Yijun Lin Plasma.
D ran, faulted when overlapped with E. up to 1.4 MW
J ran. struggling at 0.8 MW level.
E ran. good to 1.5 MW.
Next: repeat. Lower J power and let it run.

Jul 23 2010 02:35:34:273PM 1100723022 Yijun Lin Plasma. diisruption
D ran, faulted when overlapped with E. up to 1.4 MW
J ran. struggling at 0.8 MW level.
Next: repeat.

Jul 23 2010 02:50:19:840PM 1100723023 Yijun Lin Plasma.
D ran, faulted when overlapped with E. up to 1.4 MW
J ran. best shot so far.
E ran. Faults together with D.
Next: shorten D pulse and lower D/E to 1.2 MW each.
Raise J power slightly.

Jul 23 2010 02:59:41:690PM 1100723024 Yijun Lin Plasma.
D/E faulting when overlapped. (they were find separately. H/(D+H) ~ 20%)
J ran. faulting at this power level (0.9 MW).

Next: repeat.

Jul 23 2010 03:15:15:650PM 1100723025 Yijun Lin Plasma.
D/E ran at lower power (0.8 MW each)

J ran. faulting at this power level (0.9 MW).

Next: repeat.

Jul 23 2010 03:28:55:973PM 1100723026 Yijun Lin Plasma.
D/E ran at lower power (0.8 MW each)

J ran. faulting at this power level (0.9 MW), but better.

Next: repeat. Raise J power slightly.

Jul 23 2010 03:43:39:047PM 1100723027 Yijun Lin Plasma.
D/E ran at lower power (0.8 MW each)

J ran. ran reasonable at 1 MW level, then faulted at higher power.

Next: repeat. Raise J power slightly.

Jul 23 2010 04:00:07:763PM 1100723028 Yijun Lin Plasma.
D/E ran 0.8 MW each.
J ran. faulting at 1.1 MW, but getting better later in the pulse.

Next: Only J. D/E are good enough.

Jul 23 2010 04:16:17:673PM 1100723029 Yijun Lin Plasma.

J ran. Good at 0.8 MW, faulting at 1.1 MW

Next: repeat.

Jul 23 2010 04:32:13:640PM 1100723030 Yijun Lin Plasma.
J ran. slightly better at 1.1 MW.
Next: repeat.

Jul 23 2010 04:45:20:990PM 1100723031 Yijun Lin Plasma.
J ran. disrupted at 0.73 sec.
Next: repeat.

Jul 23 2010 04:58:36:163PM 1100723032 Yijun Lin Plasma.
J ran. Best shot today. Ran 1.1 MW.
Next: End of run.

Physics Operator Comments

Jul 23 2010 07:47:02:150AM Steve Wolfe
Seting up for MP#355b on 1100723 Seg1: starting from 1100722024, change pg4 to 22msec for non-cryopump startup Leave pg3 from -.019, with point at .01,30 RCUR offset from 3000 to 2500 leave BR_0 offset at .0005 leave IC_EF4U at -1280 Import seg2 from 1100702001 (and screw it up, put it in seg1!) Start over after getting more coffee Load from 1110722024 Seg1: change pg4 to 22msec for non-cryopump startup Leave pg3 from -.019, with point at .01,30 RCUR offset from 3000 to 2500 leave BR_0 offset at .0005 leave IC_EF4U at -1280 Import seg2 from 1100702001, seg2 Change pg1 (argon puff) from 75 to 50msec Extend D=3 gain on nl04 through 1.8sec, leave P=8, I=0 Active procedures: dpcs_fizzle, dpcs_xjump, baseline_sub, dpcs_piezo_chopper Load at 23-Jul-2010 07:45:28.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done PCS should be ready

Jul 23 2010 09:01:38:110AM 1100723001 Steve Wolfe
Shot#1: No power shot for testing charging of Comm bank after repair

Jul 23 2010 09:17:54:123AM 1100723002 Steve Wolfe
Shot#2: First plasma attempt plasma full length no runaways H-modes after 1sec. D and E look pretty good, J faulting repetitively, total power <1.5 MW except for the spikes from J. Next: Adjust RXL, ZXL to start making some strkpoint sweep

Jul 23 2010 09:33:34:833AM 1100723003 Steve Wolfe
Shot#3: Program RXL to sweep from -.005 to +.005 between .6 and 1.5sec Reduce ZXL from 0 to -.005 Increase argon from 50 to 75msec Result: plasma full length, another couple of h-modes. strikepoint sweeps from -.528 to -.44, just over the nose D-port ran but net power data isn't showing up. J still struggling Next: decrease ZXL some more, also try to divert earlier

Jul 23 2010 09:53:26:860AM 1100723004 Steve Wolfe
shot#4: decrease ZXL from -.005 to -.015, also clearin to .003 from .426 to .326 RXL at .433 from +.002 to -.002 TF from -150 to -161kA (5.8T) Result: plasma full length, no hmode this time sweep is from -56 to -44.7, still going over the nose diverts earlier, around .3, but recontacts at crossover. J still struggling, D also struggling, only E ran semi-clean nl04 rises during E-port pulse to eof Next: RXL in a little more at the start

Jul 23 2010 09:59:16:850AM 1100723005 Steve Wolfe
shot#5: RXL to -.008 at .6sec plasma full length, no runaways, no h-mode hardly any heating. strikepoint starts on the floor, went too far D ran, no E, J3 fair and J4 bad separately Next: adjust RXL sweep a little on both ends.

Jul 23 2010 10:14:34:000AM 1100723006 Steve Wolfe
shot#6: RXL to -.006 at .6sec, +.003 at 1.5sec plasma full length, sweep from the floor to nose E clean, D not, J's still struggling Next: try sweeping up and back

Jul 23 2010 10:28:38:757AM 1100723007 Steve Wolfe
shot#7: try sweeping, RXL up to .003 at 1.1, back to -.006 at 1.5 (if this works I'll try the rest of my initials) plasma full length, no runaways, no hmodes, reverse sweep didn't happen, it goes to -.477 and sits there as rxl comes back in. D faulty, J3 runs at 800kW, J4 faulty, E runs at .5 Next: play with sweeping some more, move ZXL down

Jul 23 2010 10:47:28:023AM 1100723008 Steve Wolfe
shot#8: Zxl ramp from -.015 at 1.1 to -.025 at 1.5sec This is fighting the natural sweep, so it may not work well Some delay for cooling, going to 15 min cycle plasma to 1.5sec, disrupts at EOF. possible vertical problem, n/nc gets to 1.18 strike still won't come back down, but elongation grows RF looking better, total power still under 1MW, everybody but D was on for substantial part of programmed time Next: Get rid of ZXL sweep, reversal on rxl

Jul 23 2010 11:02:30:407AM 1100723009 Steve Wolfe
shot#9: zxl flat, RXL back to one-way sweep to .002 at 1.5sec Most of this sweep is the natural one up the plate. PG4 from 22 to 20msec after disruption, M16 went up to 2e-8 Probably going to fizz anyway Result: plasma full length, no runaways, startup looks ok sweep from bottom to top of plate, J not happy again, D also not happy, E hanging in there at 500kW Next: repeat

Jul 23 2010 11:18:57:060AM 1100723010 Steve Wolfe
shot#10: repeat Change f.d. off gate from 2.1 to 1.8sec trying to help cooling plasma full length, tf ramps down without f.d. sequence E is working at 1MW, other RF not so much LH will be firing into vacuum between shots Next: repeat

Jul 23 2010 11:38:31:313AM 1100723011 Steve Wolfe
shot#11: repeat plasma to 1.52sec, just into rampdown D and E ran that time, J now not running together, as opposed to not running separately. li rising at end of pulse, may be pushing n/nc Next: raise zxl to eof

Jul 23 2010 11:52:04:360AM 1100723012 Steve Wolfe
shot#12:raise zxl at 1.5 from -.015 to -.005 drop pg4 from 20 to 18msec Last shot was another big M16 generator, plasma full length, no runaways, incipient marfe around .25sec E up to 1.5MW, D at .6, J faulting Next: DNB gate valve permissive on, DNB will be firing during shots. LH not firing between 12 and 13; cooling water temp high. No pcs changes

Jul 23 2010 12:09:54:137PM 1100723013 Steve Wolfe
shot#13: repeat, may need to tweak rampdown next time DNB to fire during pulse at 0.5sec plasma full length, no runaways. EF2U is going to zero in rampdown at ~1.8sec, but it's not causing a problem yet. D&E running, D having some problem after E turns on J still faulting No apparent effect of DNB on plasma. Maybe a tiny change on M2/4 and M3/4 on RGA. OH2L is now going to its rail after rampdown because the invert times are still at 2.3sec; no problem. Next: repeat

Jul 23 2010 12:21:04:320PM 1100723014 Steve Wolfe
shot#14: repeat plasma full length, no runaways, D, E at 1MW each, J faulting Next: keep trying

Jul 23 2010 12:36:15:640PM 1100723015 Steve Wolfe
shot#15: repeat INIT at 12.5min, vessel temp ~22C plasma full length, no runaways couple of injections during D&E J faulting Next: repeat

Jul 23 2010 12:55:42:100PM 1100723016 Steve Wolfe
shot#16: repeat plasma to 1.4sec, injection at 1.18 survives then loses it during E pulse. density spikes up then drops to .5 following injection. Strike jumps up to nose. RGA doesn't show as much dirt as previous disruptions. This one ends up going vertically, but the junk killed it. Next: repeat, I don't want to drop pg4 to 16ms

Jul 23 2010 01:06:29:720PM 1100723017 Steve Wolfe
shot#17: No PCS changes, hope it doesn't fizz at this fill plasma full length, no runaways - another triumph of benign neglect Got a little out of J that time, D and E ok, short overlap Startup wasn't bad considering the disruption Next: keep plugging away

Jul 23 2010 01:25:29:420PM 1100723018 Steve Wolfe
shot#18: No PCS changes 14 minutes of cooling, vessel is getting down to 17C plasma full length, no runaways, J looks like a comb. D&E fair, E up to 1.5MW Couple of injections during rf Next: no changes

Jul 23 2010 01:44:03:063PM 1100723019 Steve Wolfe
shot#19: No pcs changes plasma disrupts at 1.17sec, looks like one of those injections got us. looks like it came from J on the wide2 view, but D was also on. Next: try again

Jul 23 2010 02:00:47:223PM 1100723020 Steve Wolfe
shot#20: No pcs changes LH back to pulsing into vacuum between shots, water temp ok now. plasma full length, small early marfe, no runaways, J doing a little better, clean at .7MW, faulting higher. D&E coming along. Startup ok, CIII a little elevated. Next: keep it going

Jul 23 2010 02:16:56:403PM 1100723021 Steve Wolfe
shot#21: No pcs changes plasma full length, no runaways some fireworks from J on wide2 view, looks like one big injection 1.24sec D over 1MW, E 1.5MW, still not running well together; J more faulting Next: and over, and over, and...

Jul 23 2010 02:34:01:400PM 1100723022 Steve Wolfe
shot#22: No pcs changes plasma disrupts at 1.2sec, done in by injection again. J stays on for a while at .7MW, injection during D pulse Cell access for polar, et al., LH holding off till next shot Next: no changes, rf still trying

Jul 23 2010 02:45:37:590PM 1100723023 Steve Wolfe
shot#23: No pcs changes plasma full length, no runaways, marfe at .2sec still getting the injection around 1.2sec, but this time it didn't kill it. J better this time, stays on at 0.8MW for over 400msec Next: change rxl sweep after 1.1sec

Jul 23 2010 03:00:04:570PM 1100723024 Steve Wolfe
shot#24: Hold rxl=-.0016 after 1.1sec, zxl to -.015 flat Keep the strike from riding so far up the plate plasma full length, injection at 1.2sec replaced by a series of smaller ones. J now running square wave ~.9MW 0.6 to 1.2, D&E after 1.2sec, still faulting together Next: repeat

Jul 23 2010 03:18:46:470PM 1100723025 Steve Wolfe
shot#25: repeat plasma disrupts at 1.4sec, early marfe, then late spew from J, but it lasts until D&E time breakdown was a little late on this one. Next: no changes

Jul 23 2010 03:29:51:103PM 1100723026 Steve Wolfe
shot#26:no PCS changes That was a dirty disruption on 25, lots of M16 and M28. It's about time for a fizzle Or not: plasma disrupts at 1.5+ sec, just into rampdown. Early marfe, couple of injections Breakdown time back to normal, slowish current rise, no bounce J doing a little better, longer periods at 0.9MW, D&E together up to 1.5MW total with a few faults Next: repeat

Jul 23 2010 03:47:40:793PM 1100723027 Steve Wolfe
shot#27:no PCS changes There was a critical init failure: TCI decoder INIT bypassed and ran anyway. plasma disrupts at 1.55sec, looks normal except we don't get tci data. Feedback signal to DPCS is ok, although it didn't zero itself correctly; looks like the software baseline subtraction worked. Neuts/hards may be from previous shot; that's in TCI sigs as well. RF better than previous, longer period at 1MW on J before it loses it. Next: repeat

Jul 23 2010 04:00:16:253PM 1100723028 Steve Wolfe
shot#28:no PCS changes plasma full length no serious injections, still a little bit of an early marfe J on and off repeatedly at 1.1MW, D&E still fighting each other. Pretty good startup, current rise, bd time Next: no changes

Jul 23 2010 04:18:33:817PM 1100723029 Steve Wolfe
shot#29:no PCS changes RF will only run J this shot Vessel getting down to 16C, couple of lagging TF turns 17 min in RECOOL plasma full length, no bad injections J runs clean for ~.3sec at .85MW, then faults on and off at higher powers Next: do it again

Jul 23 2010 04:32:51:743PM 1100723030 Steve Wolfe
shot#30:no PCS changes plasma full length, J gets ~100msec with 1.2MW, and a lot of shorter intervals. Getting a little better, at this rate we'll be up to power by Xmas Next: and again...

Jul 23 2010 04:50:53:897PM 1100723031 Steve Wolfe
shot#31:no PCS changes early disruption, .75sec injection during rf, not obvious from where, maybe upper near corner of J Didn't seem to make a lot of hydrocarbons Next: leave it alone, see if it comes back

Jul 23 2010 05:01:53:807PM 1100723032 Steve Wolfe
shot#32: No pcs changes plasma disrupts at 1.45sec, J stayed on at 1 and 1.2MW for extended periods, best performance from J of the day. No heating to speak of, cooling actually, but H/H+D running over 20% so probably as expected. Leave well enough alone - END OF RUN

Engineering Operator Comments

Shot Time Type Status Comment

1 09:01:04:120AM Test Ok OH2 cap bank test

2 09:11:03:143AM Plasma Ok

3 09:25:27:460AM Plasma Ok

4 09:41:15:390AM Plasma Ok

5 09:54:00:743AM Plasma Ok

6 10:07:28:507AM Plasma Ok

7 10:22:18:310AM Plasma Ok

8 10:40:53:267AM Plasma Ok

9 10:57:24:950AM Plasma Ok

10 11:14:07:600AM Plasma Ok

11 11:31:36:240AM Plasma Ok

12 11:46:03:910AM Plasma Ok

13 12:00:32:530PM Plasma Ok

14 12:15:34:550PM Plasma Ok

15 12:30:34:163PM Plasma Ok

16 12:45:37:090PM Plasma Ok

17 01:01:06:477PM Plasma Ok

18 01:17:43:987PM Plasma Ok

19 01:34:58:773PM Plasma Ok

20 01:55:42:810PM Plasma Ok

21 02:11:43:813PM Plasma Ok

22 02:25:38:077PM Plasma Ok

23 02:40:28:207PM Plasma Ok

24 02:53:26:830PM Plasma Ok

25 03:09:19:840PM Plasma Ok

26 03:23:14:770PM Plasma Ok

27 03:38:47:910PM Plasma Ok

28 03:53:16:640PM Plasma Ok

29 04:12:51:163PM Plasma Ok

30 04:27:31:927PM Plasma Ok

31 04:42:05:430PM Plasma Ok

32 04:54:52:750PM Plasma Ok

System Availability

Jul 23 2010 09:00:50:257AM

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 no BES system is ready for Up-to-air (Apr, 2010) Mar 31 2010 10:36AM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (D+F) working. All midplane and off-midplane diode arrays working except WB1AX. Midplane foils calibrated and PRAD_MAIN is being filled. Divertor/Ledge foils not yet ready. Jul 15 2010 08:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no 3/26/10 Bottle Removed From Cell, monitors powered down, Autodialer function bypassed Mar 26 2010 05:29PM (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 no Shut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged. Apr 06 2010 10:51AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS no Wide-view CXRS system is power down and ready for up-to-air (Apr, 2010) Mar 31 2010 10:36AM (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; new calibrations (relative brightness and position) not yet implemented Jun 29 2010 10:27AM (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 Operational Jun 26 2010 09:28PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes All channels working - calibration in progress Jul 02 2010 09:30AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauges are operational. Jun 28 2010 08:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no Plugs for Power Supply and Controls have been unplugged and red tagged making system safe for In-Vessel Access. Apr 05 2010 11:18AM (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. Ch 5 preamp replaced 6/18. Jun 22 2010 03:03PM (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 operating normally Jun 29 2010 10:26AM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Jun 26 2010 11:19PM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36PM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes System installed and aligned. Inverted profiles are still not available. Jul 22 2010 08:41AM (ypodpaly) John Rice High Resolution X-Ray ince,rice,ypodpaly
HXR yes Jun 28 2010 12:12PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes system checked out ok on 11006728. Jun 28 2010 04:57PM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes system checked out ok on 1100628 Jun 28 2010 04:57PM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes system checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes operational and tested Jul 20 2010 04:42PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid yes LH was tested into dummy loads synced to shot. Shorts have been removed. Probe Cal. 6/29/10 evening. Jun 29 2010 03:51PM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
Lower Hybrid Reflectometer no 60 GHz system to detect upshifted signal Jul 22 2010 08:54AM (sgbaek) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes LYMID, WB4LY and LLY working. WB1LY not attached due to pickup problems. Jul 01 2010 11:58AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Spectra being collected and tree filled. Wavelength scan is broken so fixed on the Mo XXXI and XXXII lines. Jul 15 2010 08:28AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Start at reduced speed. Jun 22 2010 03:02PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are operational Jun 28 2010 08:02PM (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 All systems are on and functional Jun 29 2010 12:56PM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes PMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03 Jun 26 2010 09:21PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby
NINJA no Capillaries tested in-vessel. Jun 28 2010 08:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. AM (2 * 39.51) MHz. Jul 19 2010 05:54PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,ennever,ntsujii,porkolab
Penning Gauges no High voltage power supplies are turned off, waiting for work at A-port horizontal to be finished. Jun 28 2010 08:07PM (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 Jun 26 2010 11:19PM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Jun 26 2010 11:19PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Jun 26 2010 11:19PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Jun 26 2010 11:20PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Operational. Jun 28 2010 08:03PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational. Jun 28 2010 08:03PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes F and J outer divertor probes are operational. Jun 28 2010 08:04PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Operational, except probe#13 Jun 28 2010 08:04PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes On 1100723xxx the variable, 50, 60, 75, 88u and 88l are not operational. The 112 and 140 are online. Jul 23 2010 08:08AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Operational. New Langmuir-Mach probe head installed. Jun 28 2010 08:05PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Operational. Jun 28 2010 08:05PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes Both A and K units are operational. Coil polarity needs to be checked. Jun 28 2010 08:06PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes HV supply on, cable run to sparker at k-hor Jun 23 2010 02:41PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
Surface Science Station no SSS installed and leak tested, individual probes not installed Jun 28 2010 01:28PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov
TCI yes No new CO2 detector, so still missing edge channels Jun 23 2010 02:40PM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes Operating with 2 lasers, but density is **uncalibrated** Jul 14 2010 11:54AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma
TS - Edge yes Operational Jul 14 2010 11:54AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XEUS yes Operational Jul 01 2010 11:57AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer mlreinke
XTOMO yes Core system working. Edge system waiting for H-modes. Jul 01 2010 11:55AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Jul 23 2010 09:03:15:287AM	1100723001	Yijun Lin	no power shot.
Jul 23 2010 09:28:07:353AM	1100723002	Yijun Lin	Got H-mode. D and E ran fine. J was miserable. Next: Overlap D+E to 1.6 MW. J by itself. Also added strike point sweep (for higher RF power)
Jul 23 2010 09:37:22:080AM	1100723003	Yijun Lin	D and E ran fine. J better Next: Run J earlier than D+E. Max total power 1.6 MW. Also raise field to 5.8 T for PCI measurement.
Jul 23 2010 09:47:33:053AM	1100723004	Yijun Lin	J was bad. D was bad. E was fine. Next: Separate J3 and J4. Lower E power (and see if D is better).
Jul 23 2010 10:00:56:887AM	1100723005	Yijun Lin	J ran. D ran. E had no power. No gate signal due to FFT2 fault. Next: repeat.
Jul 23 2010 10:16:18:147AM	1100723006	Yijun Lin	J ran. J4 still struggling. D ran. matching bad. E ran. Next: repeat. Lower J4 power to let it run. (also tune J4). Also lower D power.
Jul 23 2010 10:30:46:327AM	1100723007	Yijun Lin	J ran. J4 mismatched. D ran. matching bad. E ran. Next: repeat. Raise J3 power. tune D and J4.
Jul 23 2010 10:47:09:130AM	1100723008	Yijun Lin	J ran. J4 ran. D ran. (its matching changes in the shot). E ran. Next: repeat. Raise J4 power. Raise D power.
Jul 23 2010 11:08:36:633AM	1100723009	Yijun Lin	Only E ran. All others had matching problem. Next: change the order of antennas
Jul 23 2010 11:23:01:697AM	1100723010	Yijun Lin	D mismatched. J ran. E ran. Next: overlap J3/J4. Tune D.
Jul 23 2010 11:39:51:677AM	1100723011	Yijun Lin	D ran, but the matching walked away. J ran. j4 mismatched. E ran. Next: tune D and J4. repeat.
Jul 23 2010 11:54:19:080AM	1100723012	Yijun Lin	D ran, J ran. struggling. E ran. Next: Raise D power. Tune J4.
Jul 23 2010 12:11:32:523PM	1100723013	Yijun Lin	D ran, J ran. ran at high power. but J4 matching is not good. E ran. Next: Raise D power, lengthen J waveform. Tune J4.
Jul 23 2010 12:52:38:907PM	1100723016	Yijun Lin	D ran, J ran. still struggling, but the matching is ok. E ran. Next: repeat.
Jul 23 2010 01:14:16:013PM	1100723017	Yijun Lin	D ran, J ran. better than last shots (but worse when D was on). E ran. Next: repeat.raise D and E power.
Jul 23 2010 01:28:25:833PM	1100723018	Yijun Lin	D ran, to 1.2 MW. J ran. better E ran.to 1.5 MW Next: repeat.
Jul 23 2010 01:43:12:113PM	1100723019	Yijun Lin	Plasma. disrupted 1.2 sec. (Mo + W) D ran, J ran. better Next: repeat.
Jul 23 2010 02:03:23:600PM	1100723020	Yijun Lin	Plasma. D ran, faulted when overlapped with E. up to 1.4 MW. J ran. better. Good at 0.6 MW. faulting at 1.2 MW. E ran. good to 1.5 MW. Next: repeat. (make low power part longer for J).
Jul 23 2010 02:20:02:913PM	1100723021	Yijun Lin	Plasma. D ran, faulted when overlapped with E. up to 1.4 MW J ran. struggling at 0.8 MW level. E ran. good to 1.5 MW. Next: repeat. Lower J power and let it run.
Jul 23 2010 02:35:34:273PM	1100723022	Yijun Lin	Plasma. diisruption D ran, faulted when overlapped with E. up to 1.4 MW J ran. struggling at 0.8 MW level. Next: repeat.
Jul 23 2010 02:50:19:840PM	1100723023	Yijun Lin	Plasma. D ran, faulted when overlapped with E. up to 1.4 MW J ran. best shot so far. E ran. Faults together with D. Next: shorten D pulse and lower D/E to 1.2 MW each. Raise J power slightly.
Jul 23 2010 02:59:41:690PM	1100723024	Yijun Lin	Plasma. D/E faulting when overlapped. (they were find separately. H/(D+H) ~ 20%) J ran. faulting at this power level (0.9 MW). Next: repeat.
Jul 23 2010 03:15:15:650PM	1100723025	Yijun Lin	Plasma. D/E ran at lower power (0.8 MW each) J ran. faulting at this power level (0.9 MW). Next: repeat.
Jul 23 2010 03:28:55:973PM	1100723026	Yijun Lin	Plasma. D/E ran at lower power (0.8 MW each) J ran. faulting at this power level (0.9 MW), but better. Next: repeat. Raise J power slightly.
Jul 23 2010 03:43:39:047PM	1100723027	Yijun Lin	Plasma. D/E ran at lower power (0.8 MW each) J ran. ran reasonable at 1 MW level, then faulted at higher power. Next: repeat. Raise J power slightly.
Jul 23 2010 04:00:07:763PM	1100723028	Yijun Lin	Plasma. D/E ran 0.8 MW each. J ran. faulting at 1.1 MW, but getting better later in the pulse. Next: Only J. D/E are good enough.
Jul 23 2010 04:16:17:673PM	1100723029	Yijun Lin	Plasma. J ran. Good at 0.8 MW, faulting at 1.1 MW Next: repeat.
Jul 23 2010 04:32:13:640PM	1100723030	Yijun Lin	Plasma. J ran. slightly better at 1.1 MW. Next: repeat.
Jul 23 2010 04:45:20:990PM	1100723031	Yijun Lin	Plasma. J ran. disrupted at 0.73 sec. Next: repeat.
Jul 23 2010 04:58:36:163PM	1100723032	Yijun Lin	Plasma. J ran. Best shot today. Ran 1.1 MW. Next: End of run.

Physics Operator Comments
Jul 23 2010 07:47:02:150AM		Steve Wolfe	Seting up for MP#355b on 1100723 Seg1: starting from 1100722024, change pg4 to 22msec for non-cryopump startup Leave pg3 from -.019, with point at .01,30 RCUR offset from 3000 to 2500 leave BR_0 offset at .0005 leave IC_EF4U at -1280 Import seg2 from 1100702001 (and screw it up, put it in seg1!) Start over after getting more coffee Load from 1110722024 Seg1: change pg4 to 22msec for non-cryopump startup Leave pg3 from -.019, with point at .01,30 RCUR offset from 3000 to 2500 leave BR_0 offset at .0005 leave IC_EF4U at -1280 Import seg2 from 1100702001, seg2 Change pg1 (argon puff) from 75 to 50msec Extend D=3 gain on nl04 through 1.8sec, leave P=8, I=0 Active procedures: dpcs_fizzle, dpcs_xjump, baseline_sub, dpcs_piezo_chopper Load at 23-Jul-2010 07:45:28.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done PCS should be ready
Jul 23 2010 09:01:38:110AM	1100723001	Steve Wolfe	Shot#1: No power shot for testing charging of Comm bank after repair
Jul 23 2010 09:17:54:123AM	1100723002	Steve Wolfe	Shot#2: First plasma attempt plasma full length no runaways H-modes after 1sec. D and E look pretty good, J faulting repetitively, total power <1.5 MW except for the spikes from J. Next: Adjust RXL, ZXL to start making some strkpoint sweep
Jul 23 2010 09:33:34:833AM	1100723003	Steve Wolfe	Shot#3: Program RXL to sweep from -.005 to +.005 between .6 and 1.5sec Reduce ZXL from 0 to -.005 Increase argon from 50 to 75msec Result: plasma full length, another couple of h-modes. strikepoint sweeps from -.528 to -.44, just over the nose D-port ran but net power data isn't showing up. J still struggling Next: decrease ZXL some more, also try to divert earlier
Jul 23 2010 09:53:26:860AM	1100723004	Steve Wolfe	shot#4: decrease ZXL from -.005 to -.015, also clearin to .003 from .426 to .326 RXL at .433 from +.002 to -.002 TF from -150 to -161kA (5.8T) Result: plasma full length, no hmode this time sweep is from -56 to -44.7, still going over the nose diverts earlier, around .3, but recontacts at crossover. J still struggling, D also struggling, only E ran semi-clean nl04 rises during E-port pulse to eof Next: RXL in a little more at the start
Jul 23 2010 09:59:16:850AM	1100723005	Steve Wolfe	shot#5: RXL to -.008 at .6sec plasma full length, no runaways, no h-mode hardly any heating. strikepoint starts on the floor, went too far D ran, no E, J3 fair and J4 bad separately Next: adjust RXL sweep a little on both ends.
Jul 23 2010 10:14:34:000AM	1100723006	Steve Wolfe	shot#6: RXL to -.006 at .6sec, +.003 at 1.5sec plasma full length, sweep from the floor to nose E clean, D not, J's still struggling Next: try sweeping up and back
Jul 23 2010 10:28:38:757AM	1100723007	Steve Wolfe	shot#7: try sweeping, RXL up to .003 at 1.1, back to -.006 at 1.5 (if this works I'll try the rest of my initials) plasma full length, no runaways, no hmodes, reverse sweep didn't happen, it goes to -.477 and sits there as rxl comes back in. D faulty, J3 runs at 800kW, J4 faulty, E runs at .5 Next: play with sweeping some more, move ZXL down
Jul 23 2010 10:47:28:023AM	1100723008	Steve Wolfe	shot#8: Zxl ramp from -.015 at 1.1 to -.025 at 1.5sec This is fighting the natural sweep, so it may not work well Some delay for cooling, going to 15 min cycle plasma to 1.5sec, disrupts at EOF. possible vertical problem, n/nc gets to 1.18 strike still won't come back down, but elongation grows RF looking better, total power still under 1MW, everybody but D was on for substantial part of programmed time Next: Get rid of ZXL sweep, reversal on rxl
Jul 23 2010 11:02:30:407AM	1100723009	Steve Wolfe	shot#9: zxl flat, RXL back to one-way sweep to .002 at 1.5sec Most of this sweep is the natural one up the plate. PG4 from 22 to 20msec after disruption, M16 went up to 2e-8 Probably going to fizz anyway Result: plasma full length, no runaways, startup looks ok sweep from bottom to top of plate, J not happy again, D also not happy, E hanging in there at 500kW Next: repeat
Jul 23 2010 11:18:57:060AM	1100723010	Steve Wolfe	shot#10: repeat Change f.d. off gate from 2.1 to 1.8sec trying to help cooling plasma full length, tf ramps down without f.d. sequence E is working at 1MW, other RF not so much LH will be firing into vacuum between shots Next: repeat
Jul 23 2010 11:38:31:313AM	1100723011	Steve Wolfe	shot#11: repeat plasma to 1.52sec, just into rampdown D and E ran that time, J now not running together, as opposed to not running separately. li rising at end of pulse, may be pushing n/nc Next: raise zxl to eof
Jul 23 2010 11:52:04:360AM	1100723012	Steve Wolfe	shot#12:raise zxl at 1.5 from -.015 to -.005 drop pg4 from 20 to 18msec Last shot was another big M16 generator, plasma full length, no runaways, incipient marfe around .25sec E up to 1.5MW, D at .6, J faulting Next: DNB gate valve permissive on, DNB will be firing during shots. LH not firing between 12 and 13; cooling water temp high. No pcs changes
Jul 23 2010 12:09:54:137PM	1100723013	Steve Wolfe	shot#13: repeat, may need to tweak rampdown next time DNB to fire during pulse at 0.5sec plasma full length, no runaways. EF2U is going to zero in rampdown at ~1.8sec, but it's not causing a problem yet. D&E running, D having some problem after E turns on J still faulting No apparent effect of DNB on plasma. Maybe a tiny change on M2/4 and M3/4 on RGA. OH2L is now going to its rail after rampdown because the invert times are still at 2.3sec; no problem. Next: repeat
Jul 23 2010 12:21:04:320PM	1100723014	Steve Wolfe	shot#14: repeat plasma full length, no runaways, D, E at 1MW each, J faulting Next: keep trying
Jul 23 2010 12:36:15:640PM	1100723015	Steve Wolfe	shot#15: repeat INIT at 12.5min, vessel temp ~22C plasma full length, no runaways couple of injections during D&E J faulting Next: repeat
Jul 23 2010 12:55:42:100PM	1100723016	Steve Wolfe	shot#16: repeat plasma to 1.4sec, injection at 1.18 survives then loses it during E pulse. density spikes up then drops to .5 following injection. Strike jumps up to nose. RGA doesn't show as much dirt as previous disruptions. This one ends up going vertically, but the junk killed it. Next: repeat, I don't want to drop pg4 to 16ms
Jul 23 2010 01:06:29:720PM	1100723017	Steve Wolfe	shot#17: No PCS changes, hope it doesn't fizz at this fill plasma full length, no runaways - another triumph of benign neglect Got a little out of J that time, D and E ok, short overlap Startup wasn't bad considering the disruption Next: keep plugging away
Jul 23 2010 01:25:29:420PM	1100723018	Steve Wolfe	shot#18: No PCS changes 14 minutes of cooling, vessel is getting down to 17C plasma full length, no runaways, J looks like a comb. D&E fair, E up to 1.5MW Couple of injections during rf Next: no changes
Jul 23 2010 01:44:03:063PM	1100723019	Steve Wolfe	shot#19: No pcs changes plasma disrupts at 1.17sec, looks like one of those injections got us. looks like it came from J on the wide2 view, but D was also on. Next: try again
Jul 23 2010 02:00:47:223PM	1100723020	Steve Wolfe	shot#20: No pcs changes LH back to pulsing into vacuum between shots, water temp ok now. plasma full length, small early marfe, no runaways, J doing a little better, clean at .7MW, faulting higher. D&E coming along. Startup ok, CIII a little elevated. Next: keep it going
Jul 23 2010 02:16:56:403PM	1100723021	Steve Wolfe	shot#21: No pcs changes plasma full length, no runaways some fireworks from J on wide2 view, looks like one big injection 1.24sec D over 1MW, E 1.5MW, still not running well together; J more faulting Next: and over, and over, and...
Jul 23 2010 02:34:01:400PM	1100723022	Steve Wolfe	shot#22: No pcs changes plasma disrupts at 1.2sec, done in by injection again. J stays on for a while at .7MW, injection during D pulse Cell access for polar, et al., LH holding off till next shot Next: no changes, rf still trying
Jul 23 2010 02:45:37:590PM	1100723023	Steve Wolfe	shot#23: No pcs changes plasma full length, no runaways, marfe at .2sec still getting the injection around 1.2sec, but this time it didn't kill it. J better this time, stays on at 0.8MW for over 400msec Next: change rxl sweep after 1.1sec
Jul 23 2010 03:00:04:570PM	1100723024	Steve Wolfe	shot#24: Hold rxl=-.0016 after 1.1sec, zxl to -.015 flat Keep the strike from riding so far up the plate plasma full length, injection at 1.2sec replaced by a series of smaller ones. J now running square wave ~.9MW 0.6 to 1.2, D&E after 1.2sec, still faulting together Next: repeat
Jul 23 2010 03:18:46:470PM	1100723025	Steve Wolfe	shot#25: repeat plasma disrupts at 1.4sec, early marfe, then late spew from J, but it lasts until D&E time breakdown was a little late on this one. Next: no changes
Jul 23 2010 03:29:51:103PM	1100723026	Steve Wolfe	shot#26:no PCS changes That was a dirty disruption on 25, lots of M16 and M28. It's about time for a fizzle Or not: plasma disrupts at 1.5+ sec, just into rampdown. Early marfe, couple of injections Breakdown time back to normal, slowish current rise, no bounce J doing a little better, longer periods at 0.9MW, D&E together up to 1.5MW total with a few faults Next: repeat
Jul 23 2010 03:47:40:793PM	1100723027	Steve Wolfe	shot#27:no PCS changes There was a critical init failure: TCI decoder INIT bypassed and ran anyway. plasma disrupts at 1.55sec, looks normal except we don't get tci data. Feedback signal to DPCS is ok, although it didn't zero itself correctly; looks like the software baseline subtraction worked. Neuts/hards may be from previous shot; that's in TCI sigs as well. RF better than previous, longer period at 1MW on J before it loses it. Next: repeat
Jul 23 2010 04:00:16:253PM	1100723028	Steve Wolfe	shot#28:no PCS changes plasma full length no serious injections, still a little bit of an early marfe J on and off repeatedly at 1.1MW, D&E still fighting each other. Pretty good startup, current rise, bd time Next: no changes
Jul 23 2010 04:18:33:817PM	1100723029	Steve Wolfe	shot#29:no PCS changes RF will only run J this shot Vessel getting down to 16C, couple of lagging TF turns 17 min in RECOOL plasma full length, no bad injections J runs clean for ~.3sec at .85MW, then faults on and off at higher powers Next: do it again
Jul 23 2010 04:32:51:743PM	1100723030	Steve Wolfe	shot#30:no PCS changes plasma full length, J gets ~100msec with 1.2MW, and a lot of shorter intervals. Getting a little better, at this rate we'll be up to power by Xmas Next: and again...
Jul 23 2010 04:50:53:897PM	1100723031	Steve Wolfe	shot#31:no PCS changes early disruption, .75sec injection during rf, not obvious from where, maybe upper near corner of J Didn't seem to make a lot of hydrocarbons Next: leave it alone, see if it comes back
Jul 23 2010 05:01:53:807PM	1100723032	Steve Wolfe	shot#32: No pcs changes plasma disrupts at 1.45sec, J stayed on at 1 and 1.2MW for extended periods, best performance from J of the day. No heating to speak of, cooling actually, but H/H+D running over 20% so probably as expected. Leave well enough alone - END OF RUN

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:01:04:120AM	Test	Ok	OH2 cap bank test
2	09:11:03:143AM	Plasma	Ok
3	09:25:27:460AM	Plasma	Ok
4	09:41:15:390AM	Plasma	Ok
5	09:54:00:743AM	Plasma	Ok
6	10:07:28:507AM	Plasma	Ok
7	10:22:18:310AM	Plasma	Ok
8	10:40:53:267AM	Plasma	Ok
9	10:57:24:950AM	Plasma	Ok
10	11:14:07:600AM	Plasma	Ok
11	11:31:36:240AM	Plasma	Ok
12	11:46:03:910AM	Plasma	Ok
13	12:00:32:530PM	Plasma	Ok
14	12:15:34:550PM	Plasma	Ok
15	12:30:34:163PM	Plasma	Ok
16	12:45:37:090PM	Plasma	Ok
17	01:01:06:477PM	Plasma	Ok
18	01:17:43:987PM	Plasma	Ok
19	01:34:58:773PM	Plasma	Ok
20	01:55:42:810PM	Plasma	Ok
21	02:11:43:813PM	Plasma	Ok
22	02:25:38:077PM	Plasma	Ok
23	02:40:28:207PM	Plasma	Ok
24	02:53:26:830PM	Plasma	Ok
25	03:09:19:840PM	Plasma	Ok
26	03:23:14:770PM	Plasma	Ok
27	03:38:47:910PM	Plasma	Ok
28	03:53:16:640PM	Plasma	Ok
29	04:12:51:163PM	Plasma	Ok
30	04:27:31:927PM	Plasma	Ok
31	04:42:05:430PM	Plasma	Ok
32	04:54:52:750PM	Plasma	Ok