Alcator C-Mod Run 1070321 Information

Miniproposals

Operators
Session leader(s):
Physics operator(s):	Steve Wolfe
Engineering operator(s):	Andy Pfeiffer,Sam Pierson

Engineering Operator Run Comment
MP#298a SL: irby PO: wolfe

Session Leader Plans

Physics Operators Plans

Entered: Mar 20 2007 05:03:09:553PM

Author: Steve Wolfe

Physop plan for Wednesday, March 21 MP#298a SL: irby PO: wolfe Overnight ECDC in D2. Hopefully it will stay on this time. Gas setup: ---------- fill B-top 6psi D2 Hybrid Enabled(PG4) fill B-side lower 1 psi Argon Hybrid Disabled (PG1) fill B-side Upper as is, Hybrid Disabled (PG2) fill B-main 40psi D2 Hybrid Enabled(PG3) NINJA pumped out, Disabled Power Systems as on 1070320029 Acoil +Dtop -Dbot -Jtop +Jbot enabled TORVAC pump gate valves open during pulse Enable the following gate valves and shutters, assuming no vacuum problems: ECE, Z-bolo, VUV ICRF setup: none. Physop plan: ------------- Get a plasma. Unless things are magically improved by overnight ECDC, this will likely require some OH1 and EF3 voltage tweaks. I may start with an intermediate rcur offeset, like 2000. If Bob has zapped f11 put back MHD_STATIC_2003 as the static shot for RECON_VAC to use for BR0, and recalculate the predictor. Consider turning the f11 input on the in the hybrid and calling those predictors too. If possible, explore lower pg4 puffs, depending on sparker status. Jim is planning to check this tonight.

Session Leader Summaries

Physics Operator Summaries

Entered: Mar 21 2007 05:57:26:473PM

Author: Steve Wolfe

Physop summary for Wednesday, March 21,2007 MP#298a C-Mod Startup SL: Irby PO: wolfe EO: Pfeiffer, Pierson, Parkin, Fitzgerald We succeeded in getting some plasmas, including a few full length 800kA LSN discharges, and began the clean-up process. The machine seems very dirty, but it was clearly getting better over the course of the day. I spent a lot of time trying to improve the startup, but it isn't clear whether what I ended up with is really any better than what I started with. Ian will have a better chance to compare tomorrow, after some more clean-up. The day got off to a promising start, with a short plasma on shot#1. However, that was it (all fizzles and duds) until shot#17. I did a lot of tweaking at the startup, including power supply voltages (Oh1 and EF3). The successful shot#17 followed a change to the Ef3 voltage pre-program which may actually have helped (or not). Continued tweaking for the rest of the day, including some back and forth that demonstrated a lack of reproducibility. Details are in the logbook under Physics_Operator. At the start of the day I was trying to get the plasma to take off and not run back inside, and by the end we were getting outward going bounces and runaways. Best plasmas were 28, 31, and 32, Best startup was probably the last one, 34, since it didn't bounce, although the breakdown was a tad late and the plasma came to an early end. It is probably worth noting that the IC_EF4 liked being between -1345 and -1360, which is slightly more negative than historical best values, and the Br0 offset started the day ok at 0, but seemed to do better later on at -.5mT to -.7mT. We ended up with eight plasmas, four full length and four shorter and disruptive. The disruptions on shots#26 and 34 were characterized by saturating Halpha signals, high resistance and increasing density, as if it were fueling from somewhere. The full length shots had flat density with NL04 just over the program value of 6e19, with the level lower on each shot, but never dropping low enough to get the pg3 feedback to come on. Joe Snipes noted an MHD mode (n=1, probably m=2) before the disruption on #26, using his new Mirnov loops. There were a couple of data system hangs today, including shot#25, the shot that never was. Before the run Jim Irby replaced the power supply on the sparker, and we had no monitor signals from it all day. Maybe it was working. After shot #17 we had a couple of duds, and I got back to fizzles by raising the fill. Not at all clear if the duds should be blamed on the sparker or just dirt from the plasma and disruption on #17. One disappointment today is that Bob's zapping of the F11 feedthrough connection seems to have been unsuccessful. Check_magnetics was reporting baseline offsets in the 15-50mV range throughout the day. However, all the other magnetics seem to be performing nominally. No problems with any of the ones that Bob and Willy zapped on Monday or with F15, which Bob zapped yesterday. Scorecard: Data cycle/tests 2 Duds 2 Fizzles 22 Plasmas 8 ---------- -- Shots 34 Total plasma duration (over 66kA)=9.29 sec

Session Leader Comments

Physics Operator Comments

Mar 21 2007 08:00:10:400AM 1070321001 Steve Wolfe
Set up for first shot- Starting from 1070320031 Zero pg2 in seg1 (that's a no-op, just for cosmetics) Change rcur offset from 2500 to 2000 ic_ef4 from -1345 to -1360 try to change br0 offset from -0.0000 to 0.0000, but it won't take it? first change to 1.0e-6, then to 0.0000 and it does take it. All of this ought to be a no-op! pg4 from 29ms to 20ms Load Filling in configuration / 2-JUN-2006 18:29:49.00/ Filling in DPCS configuration / 2-JUN-2006 18:27:32.00/ about to ask alcdata to copy /home/wolfe/pcs_scratch/pcs_model to /cmod/trees/models/pcs/pcs_model about to ask alcdata to copy /home/wolfe/pcs_scratch/dpcs_model to /cmod/trees/models/dpcs/dpcs_model Load at 21-Mar-2007 07:59:22.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done

Mar 21 2007 08:42:47:440AM 1070321001 Steve Wolfe
Observation about yesterday's voltages and currents (shot#31) compared to 1060613015: iniital OH voltage demand is a little higher (~170V compared to 100V, and there is an overshoot as well as a lag in the power supply response. The overshoot recovery is probably related to the break in slope increase in dBz/dt observed yesterday. This may not appear if the current will just take off. The difference in demand is due to the rcur P gain, and should vary with RCUR offeset, but I could probably do better by slowing down the V_OH1 feedforward, which comes up square at 100V; if I ramp that a little, I should help the overshoot which is there in the old shot as well. Currents are pretty much the same as they were in June, Bz is definitely showing more positive at and before t=0, and I can't see why from the currents. I've adjusted the EF4 current down to -1360 for the first shot today to try to deal with this; alternative is to make IC_OH1 a little more positive. Base pressure is now (08:35) down to 4e-7. I may decide to ecdc for 15 minutes after the first attempt if it doesn't go. Some changes were made to the sparker setup this morning, not sure what to expect. Bob has zapped f11, with apparently good results. I will most likely want to start using it today, but not until we either start getting plasmas or I get too frustrated not getting them.

Mar 21 2007 09:26:22:377AM 1070321001 Steve Wolfe
Shot#1: Base pressure at INIT=3.2e-7 (09:13) plasma for a while, to .22sec. F11 reports a baseline offset of 36mWb; Damn! Big overshoot on Zcur position, looks like it hit something at 27msec. The current never pauses though. We get to 600kA, loop voltage is around 3V (EFIT) Next shot: reduce pre-fill, drop Ip to 600kA

Mar 21 2007 09:40:30:143AM 1070321002 Steve Wolfe
Shot#2: pg4 to 17msec, Ip to 600kA fizzle. F11 looks ok this shot; keep an eye on it. CIII signal is down, Zmeter is up, halpha burn-out is slower. Bz looks a little negative before 10msec. Rcur moves in later. Next shot: Just repeat before any more tweaking, see if it recovers.

Mar 21 2007 09:48:08:563AM 1070321003 Steve Wolfe
Shot#3: Repeat pg4 to 17msec, Ip to 600kA base pressure was down in the 7e-7 again. fizzle. CIII is up again, halpha even flatter. zmeter signal is down. Rcur moves in but almost holds it between 20 and 30msec then snuffs. Next: Slow down OH1_volt step at t=0+

Mar 21 2007 10:04:55:643AM 1070321004 Steve Wolfe
Shot#4: OH1 volt step slowed down to not get to 150V until .008sec. PG4 from 17 to 16msec. fizzle. Mflux looks ok. F11 reports 19mV baseline offset again; doesn't seem to be fixed. Halpha still not burning out, I think it is riding the inner wall There is a spike on CIII at .02 sec, zmeter just looks lumpy; Zmeter update event is still not working. OH1 voltage overshoot a little smaller, as intended, but the Bz is still rising too fast. Maybe back off rcur offset? Next: drop pg4 some more (until it duds?)

Mar 21 2007 10:14:07:720AM 1070321005 Steve Wolfe
Shot#5: drop pg4 from 16 to 14msec Rcur offset from 2000 to 1500 (was at 1600 last year) fizzle. Not helping. CIII is higher, Halpha not burning out. Current is still very low. Next: assume it's gas/wall, drop pg4 again

Mar 21 2007 10:27:35:423AM 1070321006 Steve Wolfe
Shot#6: drop pg4 from 14 to 12msec another fizzle. Something is still not right. Could ecdc and/or reload #1; maybe I've wandered off a sweet spot. Rcur is looking better, current still not taking off. CIII level is even higher, Halpha not burining out, breakdown a little later, 7msec Lower pressure not helping, try putting it back to 20msec (counter-intuitive, but...)

Mar 21 2007 10:39:18:720AM 1070321007 Steve Wolfe
Shot#7: pg4 from 12 to 20 msec still a fizzle. Halpha is up, CIII about the same cyrrent trace basically overlays. Breakdown is back at 5.8msec. Next shot: reload seg1 from shot#1

Mar 21 2007 10:52:29:470AM 1070321008 Steve Wolfe
Shot#8:reload seg1 from shot#1 (undo all the voltage, rcur tweaks) If this doesn't go, then ECDC for 15 minutes Another fizzle. Current about the same, Rcur and bz moving in and higher respectively. CIII level is a bit higher, lots of bumps and wiggles. Try ecdc for 15 minutes.

Mar 21 2007 11:24:01:393AM 1070321009 Steve Wolfe
Shot#9: Repeat of shot#8 after 15 minutes of ecdc IGT= 2.0e-6 at INIT,1.5e-6 at PULSE fizzle. CIII level is about half, Halpha similar, zmeter is very low. Main difference is the pressure doesn't pump out after breakdown. Current rise is still practically nothing. Repeat once, then do something (not sure what)

Mar 21 2007 11:33:40:220AM 1070321010 Steve Wolfe
Shot#10: Repeat once, then do something (not sure what) ITG=8e-7 at INIT. No better. Raise pre-puff, then go back to the shot 7 program but at higher pressure, then try to reduce the index.

Mar 21 2007 11:47:04:487AM 1070321011 Steve Wolfe
Shot#11: pg4 from 20 to 25msec fizzle, no better. Tiny bit more current, still going in, CIII level up again. breakdown at 7.3msec Import seg 1 from shot 7, raise pg4

Mar 21 2007 11:59:20:987AM 1070321012 Steve Wolfe
Shot#12: Import seg 1 from shot 7, raise pg4 from 20 to 24msec Expect this to fizzle, more or less like #7. Check the flux plots, and decide what to tweak next. fizzle, late breakdown, about 12 msec. Didn't expect that. Naturally, no update on vacbrbz this time. They are there though. Bz is more negative, a bit. Raise EF4 before I do anything else.

Mar 21 2007 12:14:25:847PM 1070321013 Steve Wolfe
Shot#13: Raise EF4 from -1360 to -1345 I'm not sure this is the right thing, might be better to put rcur back up or V_oh1 and V_oh2's. Give it a try, anyway. Never went to init, apparently didn't see the state transition. No Pat, no actmon activity, Web cycle says cycle not operating. This is probably related to why I didn't get updates on some traces last shot? Went on through the cycle, it stored data, not sure from where. Traces seem to be zeros, so it isn't the previous shot. Logbook still not showing a cycle.

Mar 21 2007 12:31:03:033PM 1070321014 Steve Wolfe
Shot#14: Raise EF4 from -1360 to -1345 I'm not sure this is the right thing, might be better to put rcur back up or V_oh1 and V_oh2's. Give it a try, anyway, same as on shot#13 that wasn't. Cycle restarted per Josh. Still not getting Pat's voice, web logbook still not showing that the cycle exists, but the actmon is running. Got a fizzle. Sounded like everything went. Breakdown is still late, 11-12 msec. Bz did go up. Next: drop the pre-puff back to 20msec?

Mar 21 2007 12:51:48:957PM 1070321015 Steve Wolfe
Shot#15: drop the pre-puff back from 24to 20msec IC_EF4 back to -1360 Next thing will be to change BR0, but I'm not sure which way to go because it really hasn't changed. fizzle. Still a late breakdown. Lost the zmeter on that one. Br0 to -.0005

Mar 21 2007 01:02:20:627PM 1070321016 Steve Wolfe
Shot#16: Br0 from 0 to -.0005 fizzle. breakdown is back to 5.6msec No burnout. Back to tweaking voltages, but I think maybe it's just dirty.

Mar 21 2007 01:19:26:520PM 1070321017 Steve Wolfe
Shot#17: Raise EF3 voltages by 300V before 20msec 2300->2600 2500->2800 2500->2800 2250->2550 Not sure if it can actually get as high as 2800. plasma for 450msec Startup actually bounced a little, then survived. Current hesitation from 12 to 18msec around 38kA then takes off. Zcur looks ok this time. Density gets to about 8e19 (puff off), ECE shows 2.4keV and sawtoothing, it diverts at about 250msec. next: back to 800kA program

Mar 21 2007 01:29:19:627PM 1070321018 Steve Wolfe
Shot#18: Same startup program, raise Ip back to 800kA dud. Fields look the same. Maybe we lost the sparker? No way to tell. Just repeat.

Mar 21 2007 01:37:30:957PM 1070321019 Steve Wolfe
Shot#19: Same startup program, raise Ip back to 800kA Dud. OK, raise the fill.

Mar 21 2007 01:52:40:860PM 1070321020 Steve Wolfe
Shot#20: pg4 from 20 to 25msec At least we got a fizzle back. late breakdown, around 10msec next: drop br0 another .2mT

Mar 21 2007 02:11:23:737PM 1070321021 Steve Wolfe
Shot#21: br0 from -.0005 to -.0007 Another fizzle. breakdown at 5msec Hardly any current. Doesn't actually look like br went down. No sign of burnout, zmeter is rising and CIII has big spikes (to .03 mW/cm2/ster) Just for the hell of it, draw the rcur target further out.

Mar 21 2007 02:18:16:737PM 1070321022 Steve Wolfe
Shot#22: Draw rcur target in seg 1 to .65m (was .63 and then moving out to .65), as long as the current is so small, I don't believe this will do anything. fizzle. Big bounce, maybe moved out? Looked like it just go through a hesitation, like on 17, then hit something at 20msec. Try again, no more changes.

Mar 21 2007 02:34:13:910PM 1070321023 Steve Wolfe
Shot#23: repeat p[lasma full length. 1.8sec 800ikA, looking flat across. Almost lost it in startup though, it bounces outside at 28msec and moves way in, but recovers (may not have been a bounce, may have been a flake). Still some hesitation between 10 and 20msec, not as bad as on 17. NL04 is flat at around 7.5e19, no puff (program is 6e19) Loop voltage around 1.2V in flattop. Next: Just repeat, it will fizzle for a while anyway.

Mar 21 2007 02:43:10:987PM 1070321024 Steve Wolfe
Shot#24: repeat Fizzle, as expected. Broke down ok, 5.6msec slid back in. I notice that the chopper bias on 23 was low, There seems to be a 100V program in seg2 for the chopper voltage. Go ahead and change this to zero, which I think is the right thing.

Mar 21 2007 03:01:01:410PM 1070321025 Steve Wolfe
Shot#25: Chopper voltage from +100V to 0. in seg 2 No startup changes. Cycle problem again - NO POWER SHOT

Mar 21 2007 03:28:32:143PM 1070321026 Steve Wolfe
Shot#26: Chopper voltage from +100V to 0. in seg 2 No startup changes. Plasma disrupted at .37sec. Longer hesitation, started moving back in with out a noticeable bounce or injection. Halpha signal is through the roof during the shot, never got above 600kA. Big runaway dump at 0.11sec or so. Loop voltage=2.5V Injested a lot of something from somewhere. Some light from the top before the disruption.

Mar 21 2007 03:35:23:270PM 1070321027 Steve Wolfe
Shot#27: repeat, see what happens. fizzle, no surprise there. Good early breakdown, about 5msec. Hardly any current. Looks like the zmeter is having trigger problems again. Halpha not burning out, big lumps on the CIII signal. Drop the fill back to 22msec

Mar 21 2007 03:52:10:597PM 1070321028 Steve Wolfe
Shot#28: pg4 from 25 to 22msec Just noticed that the starting rcur in seg2 is .645, while I've drawn .65 in seg1. Of course, there is also the rcur offset in seg1, presently 1500, so it probably wouldn't match anyway. Need to check, but not for this shot (already in INIT, I expect a fizzle anyhow). But got a full length plasma instead! OK, I'll take it. Slightly bouncy startup, but makes it. Some injections during flattop, also some hards early. NL04 just over 6e19, gas puff still not coming on. Ramps all the way down. It looks like there is a jump of about 3000A-m at seg switch. Maybe I should put back the old startup rcur.

Mar 21 2007 04:04:52:207PM 1070321029 Steve Wolfe
Shot#29: Load rcur in seg1 from shot#17, before I changed it. The final value was .648, so it shouldn't make any differrnce at the transition. I just want to see if it actually changes the startup at all. Fizzle. Bounces on the outside, or a flake as it moves out. This looks sort of like 22, which was after the rcur program change in seg1. I think it made no difference. Well, actually the breakdown was very late, around 11msec. Next: leave it for another shot, see if I can make it to segment switch and confirm the jump is the same.

Mar 21 2007 04:12:46:080PM 1070321030 Steve Wolfe
Shot#30: Repeat Fizzle. breakdown at 8.3msec, still a little late. Could be the rcur, could be recovering, give it one more try.

Mar 21 2007 04:33:37:267PM 1070321031 Steve Wolfe
Shot#31: Repeat After some wait for a ef3L to cool. plasma full length. ramps all the way down. Breakdown back at 5msec, bounces outside again, taking a small bite out of the current. Similar to 28, but a little worse. Getting some early runaways too. Possible marfe before 250msec Density is still just above 6e19 with no gas after .13sec Loop voltage is about 1.1V (EFIT). Ip at 0.1sec is 490kA, compared to program of 500 (now). Jump in rcur error at seg switch is similar to 28. Next: raise ic_ef4 15amps, see if I can cure the bounce that way.

Mar 21 2007 04:42:13:627PM 1070321032 Steve Wolfe
Shot#32: ef4 from -1360 to -1345 Plasma, two in a row, but there were still runaways The bolo and hards traces are delayed by about .8sec; same as zmeter I think. Still bounced on startup, No hesitation before the bounce, which was also the case on 31. Breakdown just a little later, 5.6msec. Injection around 1.0sec takes a bite from Te, not so much on current. Next: try raising pre-puff

Mar 21 2007 04:54:10:283PM 1070321033 Steve Wolfe
Shot#33: pg4 from 22 to 27msec Hang in INIT, for about 3minutes fizzle. breakdown late 7.4msec, moves in; too much gas? Next: pg4 down to 24msec for last shot.

Mar 21 2007 05:15:15:703PM 1070321034 Steve Wolfe
Shot#34: pg4 from 27 to 24msec plasma disrupted at .47sec, Halpha saturates again, sort of like shot#26. NL04 rising to over 1.3e20, gas hard off. Nice startup though, no bounce, no hesitation. Both rcur and zcur look well-controlled. No lumps or spikes on CIII or Halpha or zmeter. This is the nicest startup of the day, although breakdown is a little late, around 7.5msec. Loop voltage is over 2V throughout, current doesn't get above 700kA. That's all for today.

Engineering Operator Comments

Shot Time Type Status Comment

1 09:13:25:830AM Plasma Ok

2 09:30:00:533AM Plasma Ok

3 09:42:28:313AM Plasma Ok

4 09:55:09:707AM Plasma Ok

5 10:08:05:003AM Plasma Ok

6 10:23:02:910AM Plasma Ok

7 10:35:42:940AM Plasma Ok

8 10:48:07:190AM Plasma Ok

9 11:16:13:940AM Plasma Ok

10 11:28:51:110AM Plasma Ok

11 11:41:30:207AM Plasma Ok

12 11:55:09:097AM Plasma Ok

13 12:07:44:707PM Test Bad

14 12:27:10:690PM Test Bad

15 12:44:53:660PM Plasma Ok

16 12:57:30:237PM Plasma Ok

17 01:10:08:033PM Plasma Ok

18 01:22:59:127PM Plasma Ok

19 01:35:33:110PM Plasma Ok

20 01:48:13:580PM Plasma Ok

21 02:01:06:207PM Plasma Ok

22 02:13:49:160PM Plasma Ok

23 02:26:15:470PM Plasma Ok

24 02:38:48:097PM Plasma Ok

26 03:18:02:360PM Plasma Ok

27 03:30:41:987PM Plasma Ok

28 03:43:17:410PM Plasma Ok

29 03:56:34:033PM Plasma Ok

30 04:08:55:237PM Plasma Ok

31 04:24:14:690PM Plasma Ok

32 04:36:40:160PM Plasma Ok

33 04:49:11:253PM Plasma Ok

34 05:03:44:220PM Plasma Ok

System Availability

Mar 21 2007 09:13:01:580AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no Feb 05 2007 04:33PM (twf) Joe Snipes Active MHD Antenna sears,snipes
BES yes vertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm. Feb 06 2007 10:00AM (bravenec) Ron Bravenec Beam Emission Spectroscopy bravenec
Bolometers no 2Pi should be ready, but need plasma to confirm. Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 19 2007 01:59PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no Jan 14 2007 01:47PM Jim Irby Boronization dekow,irby
CNPA no Jan 14 2007 02:06PM Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor no In-vessel hardware is installed; in-vessel cryogenic systems are leak-tight. Work is proceeding on external LHe and LN2 transfer lines as well as PLC control system. We will do the first LN2 cool-down tests manually. Mar 13 2007 09:55PM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS no The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersects the beam at the range major_R=[75,4:87.4]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersects the beam at the range major_R=[67.8:91.0]cm. Spacial resolution: 1.22 cm. Mar 06 2007 08:09PM (rowan) Bill Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan
D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNB no Jan 14 2007 01:46PM Bob Granetz Diagnostic Beam beals,granetz
FRC-ECE yes Only channel 17-32 available until after power test Feb 21 2007 12:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes The gauge is operational. Cross-calibration with G-Side MKS gauge is needed. Mar 13 2007 10:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes Chs 2-8 should be operational;1 is uncertain. Large oscillation yesterday not understood, not seen on today's test shot. Mar 21 2007 09:02AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Main amp repaired; slow channels hopefully operational. Mar 21 2007 09:01AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Not available 3/1-3/6 Jan 23 2007 02:24PM (g) Jim Terry Gas Puff Imaging terry,zweben
H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (marmar) Earl Marmar H/D Ratio marmar
Hirex III no Jan 14 2007 01:53PM John Rice High Resolution X-Ray ince,rice
Hirex Jr yes Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no Jan 23 2007 02:24PM (g) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna no 80.5 MHz. coaxial line needs more work. more hi-yard work Mar 16 2007 09:32AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna no 80 MHz. FFT installation/coaxial line needs more work Mar 16 2007 09:32AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna no Need to tune from 70 to 78 MHz. Loop not finished. Mar 16 2007 09:31AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid no Available after 3/20 Jan 23 2007 02:24PM (g) Ron Parker Lower Hybrid dterry,parker
LPI no Jan 14 2007 02:03PM Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 06 2007 01:09PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson no will check out system on shots with plasma Mar 11 2007 10:36PM (terry) Jim Terry VUV Spectrometer reinke,terry
Michelson yes Should be operational from 3/15. Reduced speed. Mar 15 2007 08:37AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes E-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box. Mar 20 2007 06:42PM (g) Brian LaBombard Baratron pressure gauges labombard
MLP no Bench tests are proceeding on a prototype MLP system. We hope to roll the system into the cell for testing in a few weeks, powering up a single electrode on the A-port scanning probe. Mar 13 2007 09:57PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no Jan 23 2007 02:24PM (g) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Calibrated detectors are positioned correctly; Voltage is on on the He3 bank; Remaining voltages will be turned on when plasma attempts start Mar 13 2007 08:23AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes In theory ready to go Mar 15 2007 10:59AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. The gas plenum needs to be purged. Mar 12 2007 10:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI no Jan 14 2007 02:03PM Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes 8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'. Mar 13 2007 10:01PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, DANT are operational; JANT and DIV (without an ND filter) are being debugged. WIDE2 has not yet been inserted into its re-entrant tube. Mar 16 2007 09:38AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby
Probe Array - ISD yes Probes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:47PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Probes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes 14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis. Mar 13 2007 12:46PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer no Mar 05 2007 05:34PM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP no A-port and K-port WASPs were sucessfully scanned during recent TF only shots. A bit more control software needs to be written... Mar 15 2007 09:11PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes NL04 at 71.04 cm from 3/9/07 calibration Mar 09 2007 05:47PM (irby) Jim Irby Two-Color Interferometer (TCI) irby,murray
TS - Core no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Core jwhughes
TS - Edge no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Edge jwhughes

Mar 21 2007 09:42:07:220AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no Feb 05 2007 04:33PM (twf) Joe Snipes Active MHD Antenna sears,snipes
BES yes vertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm. Feb 06 2007 10:00AM (bravenec) Ron Bravenec Beam Emission Spectroscopy bravenec
Bolometers no 2Pi should be ready, but need plasma to confirm. Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 19 2007 01:59PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no Jan 14 2007 01:47PM Jim Irby Boronization dekow,irby
CNPA no Jan 14 2007 02:06PM Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor no In-vessel hardware is installed; in-vessel cryogenic systems are leak-tight. Work is proceeding on external LHe and LN2 transfer lines as well as PLC control system. We will do the first LN2 cool-down tests manually. Mar 13 2007 09:55PM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS no The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersects the beam at the range major_R=[75,4:87.4]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersects the beam at the range major_R=[67.8:91.0]cm. Spacial resolution: 1.22 cm. Mar 06 2007 08:09PM (rowan) Bill Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan
D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNB no Jan 14 2007 01:46PM Bob Granetz Diagnostic Beam beals,granetz
FRC-ECE yes Only channel 17-32 available until after power test Feb 21 2007 12:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes The gauge is operational. Cross-calibration with G-Side MKS gauge is needed. Mar 13 2007 10:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes Chs 2-8 operational. (note 3,6,7 were not working in 2006). Not absolutely calibrated until we get a long shot Mar 21 2007 09:38AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Main amp repaired; most slow channels operational. Fast signals not yet connected. Mar 21 2007 09:39AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Not available 3/1-3/6 Jan 23 2007 02:24PM (g) Jim Terry Gas Puff Imaging terry,zweben
H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (marmar) Earl Marmar H/D Ratio marmar
Hirex III no Jan 14 2007 01:53PM John Rice High Resolution X-Ray ince,rice
Hirex Jr yes Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no Jan 23 2007 02:24PM (g) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna no 80.5 MHz. coaxial line needs more work. more hi-yard work Mar 16 2007 09:32AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna no 80 MHz. FFT installation/coaxial line needs more work Mar 16 2007 09:32AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna no Need to tune from 70 to 78 MHz. Loop not finished. Mar 16 2007 09:31AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid no Available after 3/20 Jan 23 2007 02:24PM (g) Ron Parker Lower Hybrid dterry,parker
LPI no Jan 14 2007 02:03PM Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 06 2007 01:09PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson no will check out system on shots with plasma Mar 11 2007 10:36PM (terry) Jim Terry VUV Spectrometer reinke,terry
Michelson yes Operational, at reduced speed. Mar 21 2007 09:39AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes E-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box. Mar 20 2007 06:42PM (g) Brian LaBombard Baratron pressure gauges labombard
MLP no Bench tests are proceeding on a prototype MLP system. We hope to roll the system into the cell for testing in a few weeks, powering up a single electrode on the A-port scanning probe. Mar 13 2007 09:57PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no Jan 23 2007 02:24PM (g) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Calibrated detectors are positioned correctly; Voltage is on on the He3 bank; Remaining voltages will be turned on when plasma attempts start Mar 13 2007 08:23AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes In theory ready to go Mar 15 2007 10:59AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. The gas plenum needs to be purged. Mar 12 2007 10:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI no Jan 14 2007 02:03PM Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes 8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'. Mar 13 2007 10:01PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, DANT are operational; JANT and DIV (without an ND filter) are being debugged. WIDE2 has not yet been inserted into its re-entrant tube. Mar 16 2007 09:38AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby
Probe Array - ISD yes Probes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:47PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Probes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes 14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis. Mar 13 2007 12:46PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer no Mar 05 2007 05:34PM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP no A-port and K-port WASPs were sucessfully scanned during recent TF only shots. A bit more control software needs to be written... Mar 15 2007 09:11PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes NL04 at 71.04 cm from 3/9/07 calibration Mar 09 2007 05:47PM (irby) Jim Irby Two-Color Interferometer (TCI) irby,murray
TS - Core no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Core jwhughes
TS - Edge no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Edge jwhughes

Mar 21 2007 04:36:19:207PM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no Feb 05 2007 04:33PM (twf) Joe Snipes Active MHD Antenna sears,snipes
BES yes vertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm. Feb 06 2007 10:00AM (bravenec) Ron Bravenec Beam Emission Spectroscopy bravenec
Bolometers no 2Pi should be ready, but need plasma to confirm. Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 19 2007 01:59PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no Jan 14 2007 01:47PM Jim Irby Boronization dekow,irby
CNPA no Jan 14 2007 02:06PM Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor no In-vessel hardware is installed; in-vessel cryogenic systems are leak-tight. Work is proceeding on external LHe and LN2 transfer lines as well as PLC control system. We will do the first LN2 cool-down tests manually. Mar 13 2007 09:55PM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS no The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersects the beam at the range major_R=[75,4:87.4]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersects the beam at the range major_R=[67.8:91.0]cm. Spacial resolution: 1.22 cm. Mar 06 2007 08:09PM (rowan) Bill Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan
D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNB no Jan 14 2007 01:46PM Bob Granetz Diagnostic Beam beals,granetz
FRC-ECE yes Only channel 17-32 available until after power test Feb 21 2007 12:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes The gauge is operational. Cross-calibration with G-Side MKS gauge is needed. Mar 13 2007 10:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes Chs 2-8 operational. (note 3,6,7 were not working in 2006). Not absolutely calibrated until we get a long shot Mar 21 2007 09:38AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Main amp repaired; most slow channels operational. Fast signals not yet connected. Mar 21 2007 09:39AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Not available 3/1-3/6 Jan 23 2007 02:24PM (g) Jim Terry Gas Puff Imaging terry,zweben
H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (marmar) Earl Marmar H/D Ratio marmar
Hirex III no Jan 14 2007 01:53PM John Rice High Resolution X-Ray ince,rice
Hirex Jr yes Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no Jan 23 2007 02:24PM (g) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna no 80.5 MHz. coaxial line needs more work. more hi-yard work Mar 16 2007 09:32AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna no 80 MHz. FFT installation/coaxial line needs more work Mar 16 2007 09:32AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna no Need to tune from 70 to 78 MHz. Loop not finished. Mar 16 2007 09:31AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid no Available after 3/20 Jan 23 2007 02:24PM (g) Ron Parker Lower Hybrid dterry,parker
LPI no Jan 14 2007 02:03PM Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 06 2007 01:09PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson no will check out system on shots with plasma Mar 11 2007 10:36PM (terry) Jim Terry VUV Spectrometer reinke,terry
Michelson yes Operational, at reduced speed. Mar 21 2007 09:39AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes E-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box. Mar 20 2007 06:42PM (g) Brian LaBombard Baratron pressure gauges labombard
MLP no Bench tests are proceeding on a prototype MLP system. We hope to roll the system into the cell for testing in a few weeks, powering up a single electrode on the A-port scanning probe. Mar 13 2007 09:57PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no Jan 23 2007 02:24PM (g) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Calibrated detectors are positioned correctly; Voltage is on on the He3 bank; Remaining voltages will be turned on when plasma attempts start Mar 13 2007 08:23AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes operational Mar 21 2007 04:29PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. The gas plenum needs to be purged. Mar 12 2007 10:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI no Jan 14 2007 02:03PM Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes 8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'. Mar 13 2007 10:01PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, DANT are operational; JANT and DIV (without an ND filter) are being debugged. WIDE2 has not yet been inserted into its re-entrant tube. Mar 16 2007 09:38AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby
Probe Array - ISD yes Probes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:47PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Probes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes 14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis. Mar 13 2007 12:46PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer no Mar 05 2007 05:34PM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP no A-port and K-port WASPs were sucessfully scanned during recent TF only shots. A bit more control software needs to be written... Mar 15 2007 09:11PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes NL04 at 71.04 cm from 3/9/07 calibration Mar 09 2007 05:47PM (irby) Jim Irby Two-Color Interferometer (TCI) irby,murray
TS - Core no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Core jwhughes
TS - Edge no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Edge jwhughes

Physics Operator Comments
Mar 21 2007 08:00:10:400AM	1070321001	Steve Wolfe	Set up for first shot- Starting from 1070320031 Zero pg2 in seg1 (that's a no-op, just for cosmetics) Change rcur offset from 2500 to 2000 ic_ef4 from -1345 to -1360 try to change br0 offset from -0.0000 to 0.0000, but it won't take it? first change to 1.0e-6, then to 0.0000 and it does take it. All of this ought to be a no-op! pg4 from 29ms to 20ms Load Filling in configuration / 2-JUN-2006 18:29:49.00/ Filling in DPCS configuration / 2-JUN-2006 18:27:32.00/ about to ask alcdata to copy /home/wolfe/pcs_scratch/pcs_model to /cmod/trees/models/pcs/pcs_model about to ask alcdata to copy /home/wolfe/pcs_scratch/dpcs_model to /cmod/trees/models/dpcs/dpcs_model Load at 21-Mar-2007 07:59:22.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done
Mar 21 2007 08:42:47:440AM	1070321001	Steve Wolfe	Observation about yesterday's voltages and currents (shot#31) compared to 1060613015: iniital OH voltage demand is a little higher (~170V compared to 100V, and there is an overshoot as well as a lag in the power supply response. The overshoot recovery is probably related to the break in slope increase in dBz/dt observed yesterday. This may not appear if the current will just take off. The difference in demand is due to the rcur P gain, and should vary with RCUR offeset, but I could probably do better by slowing down the V_OH1 feedforward, which comes up square at 100V; if I ramp that a little, I should help the overshoot which is there in the old shot as well. Currents are pretty much the same as they were in June, Bz is definitely showing more positive at and before t=0, and I can't see why from the currents. I've adjusted the EF4 current down to -1360 for the first shot today to try to deal with this; alternative is to make IC_OH1 a little more positive. Base pressure is now (08:35) down to 4e-7. I may decide to ecdc for 15 minutes after the first attempt if it doesn't go. Some changes were made to the sparker setup this morning, not sure what to expect. Bob has zapped f11, with apparently good results. I will most likely want to start using it today, but not until we either start getting plasmas or I get too frustrated not getting them.
Mar 21 2007 09:26:22:377AM	1070321001	Steve Wolfe	Shot#1: Base pressure at INIT=3.2e-7 (09:13) plasma for a while, to .22sec. F11 reports a baseline offset of 36mWb; Damn! Big overshoot on Zcur position, looks like it hit something at 27msec. The current never pauses though. We get to 600kA, loop voltage is around 3V (EFIT) Next shot: reduce pre-fill, drop Ip to 600kA
Mar 21 2007 09:40:30:143AM	1070321002	Steve Wolfe	Shot#2: pg4 to 17msec, Ip to 600kA fizzle. F11 looks ok this shot; keep an eye on it. CIII signal is down, Zmeter is up, halpha burn-out is slower. Bz looks a little negative before 10msec. Rcur moves in later. Next shot: Just repeat before any more tweaking, see if it recovers.
Mar 21 2007 09:48:08:563AM	1070321003	Steve Wolfe	Shot#3: Repeat pg4 to 17msec, Ip to 600kA base pressure was down in the 7e-7 again. fizzle. CIII is up again, halpha even flatter. zmeter signal is down. Rcur moves in but almost holds it between 20 and 30msec then snuffs. Next: Slow down OH1_volt step at t=0+
Mar 21 2007 10:04:55:643AM	1070321004	Steve Wolfe	Shot#4: OH1 volt step slowed down to not get to 150V until .008sec. PG4 from 17 to 16msec. fizzle. Mflux looks ok. F11 reports 19mV baseline offset again; doesn't seem to be fixed. Halpha still not burning out, I think it is riding the inner wall There is a spike on CIII at .02 sec, zmeter just looks lumpy; Zmeter update event is still not working. OH1 voltage overshoot a little smaller, as intended, but the Bz is still rising too fast. Maybe back off rcur offset? Next: drop pg4 some more (until it duds?)
Mar 21 2007 10:14:07:720AM	1070321005	Steve Wolfe	Shot#5: drop pg4 from 16 to 14msec Rcur offset from 2000 to 1500 (was at 1600 last year) fizzle. Not helping. CIII is higher, Halpha not burning out. Current is still very low. Next: assume it's gas/wall, drop pg4 again
Mar 21 2007 10:27:35:423AM	1070321006	Steve Wolfe	Shot#6: drop pg4 from 14 to 12msec another fizzle. Something is still not right. Could ecdc and/or reload #1; maybe I've wandered off a sweet spot. Rcur is looking better, current still not taking off. CIII level is even higher, Halpha not burining out, breakdown a little later, 7msec Lower pressure not helping, try putting it back to 20msec (counter-intuitive, but...)
Mar 21 2007 10:39:18:720AM	1070321007	Steve Wolfe	Shot#7: pg4 from 12 to 20 msec still a fizzle. Halpha is up, CIII about the same cyrrent trace basically overlays. Breakdown is back at 5.8msec. Next shot: reload seg1 from shot#1
Mar 21 2007 10:52:29:470AM	1070321008	Steve Wolfe	Shot#8:reload seg1 from shot#1 (undo all the voltage, rcur tweaks) If this doesn't go, then ECDC for 15 minutes Another fizzle. Current about the same, Rcur and bz moving in and higher respectively. CIII level is a bit higher, lots of bumps and wiggles. Try ecdc for 15 minutes.
Mar 21 2007 11:24:01:393AM	1070321009	Steve Wolfe	Shot#9: Repeat of shot#8 after 15 minutes of ecdc IGT= 2.0e-6 at INIT,1.5e-6 at PULSE fizzle. CIII level is about half, Halpha similar, zmeter is very low. Main difference is the pressure doesn't pump out after breakdown. Current rise is still practically nothing. Repeat once, then do something (not sure what)
Mar 21 2007 11:33:40:220AM	1070321010	Steve Wolfe	Shot#10: Repeat once, then do something (not sure what) ITG=8e-7 at INIT. No better. Raise pre-puff, then go back to the shot 7 program but at higher pressure, then try to reduce the index.
Mar 21 2007 11:47:04:487AM	1070321011	Steve Wolfe	Shot#11: pg4 from 20 to 25msec fizzle, no better. Tiny bit more current, still going in, CIII level up again. breakdown at 7.3msec Import seg 1 from shot 7, raise pg4
Mar 21 2007 11:59:20:987AM	1070321012	Steve Wolfe	Shot#12: Import seg 1 from shot 7, raise pg4 from 20 to 24msec Expect this to fizzle, more or less like #7. Check the flux plots, and decide what to tweak next. fizzle, late breakdown, about 12 msec. Didn't expect that. Naturally, no update on vacbrbz this time. They are there though. Bz is more negative, a bit. Raise EF4 before I do anything else.
Mar 21 2007 12:14:25:847PM	1070321013	Steve Wolfe	Shot#13: Raise EF4 from -1360 to -1345 I'm not sure this is the right thing, might be better to put rcur back up or V_oh1 and V_oh2's. Give it a try, anyway. Never went to init, apparently didn't see the state transition. No Pat, no actmon activity, Web cycle says cycle not operating. This is probably related to why I didn't get updates on some traces last shot? Went on through the cycle, it stored data, not sure from where. Traces seem to be zeros, so it isn't the previous shot. Logbook still not showing a cycle.
Mar 21 2007 12:31:03:033PM	1070321014	Steve Wolfe	Shot#14: Raise EF4 from -1360 to -1345 I'm not sure this is the right thing, might be better to put rcur back up or V_oh1 and V_oh2's. Give it a try, anyway, same as on shot#13 that wasn't. Cycle restarted per Josh. Still not getting Pat's voice, web logbook still not showing that the cycle exists, but the actmon is running. Got a fizzle. Sounded like everything went. Breakdown is still late, 11-12 msec. Bz did go up. Next: drop the pre-puff back to 20msec?
Mar 21 2007 12:51:48:957PM	1070321015	Steve Wolfe	Shot#15: drop the pre-puff back from 24to 20msec IC_EF4 back to -1360 Next thing will be to change BR0, but I'm not sure which way to go because it really hasn't changed. fizzle. Still a late breakdown. Lost the zmeter on that one. Br0 to -.0005
Mar 21 2007 01:02:20:627PM	1070321016	Steve Wolfe	Shot#16: Br0 from 0 to -.0005 fizzle. breakdown is back to 5.6msec No burnout. Back to tweaking voltages, but I think maybe it's just dirty.
Mar 21 2007 01:19:26:520PM	1070321017	Steve Wolfe	Shot#17: Raise EF3 voltages by 300V before 20msec 2300->2600 2500->2800 2500->2800 2250->2550 Not sure if it can actually get as high as 2800. plasma for 450msec Startup actually bounced a little, then survived. Current hesitation from 12 to 18msec around 38kA then takes off. Zcur looks ok this time. Density gets to about 8e19 (puff off), ECE shows 2.4keV and sawtoothing, it diverts at about 250msec. next: back to 800kA program
Mar 21 2007 01:29:19:627PM	1070321018	Steve Wolfe	Shot#18: Same startup program, raise Ip back to 800kA dud. Fields look the same. Maybe we lost the sparker? No way to tell. Just repeat.
Mar 21 2007 01:37:30:957PM	1070321019	Steve Wolfe	Shot#19: Same startup program, raise Ip back to 800kA Dud. OK, raise the fill.
Mar 21 2007 01:52:40:860PM	1070321020	Steve Wolfe	Shot#20: pg4 from 20 to 25msec At least we got a fizzle back. late breakdown, around 10msec next: drop br0 another .2mT
Mar 21 2007 02:11:23:737PM	1070321021	Steve Wolfe	Shot#21: br0 from -.0005 to -.0007 Another fizzle. breakdown at 5msec Hardly any current. Doesn't actually look like br went down. No sign of burnout, zmeter is rising and CIII has big spikes (to .03 mW/cm2/ster) Just for the hell of it, draw the rcur target further out.
Mar 21 2007 02:18:16:737PM	1070321022	Steve Wolfe	Shot#22: Draw rcur target in seg 1 to .65m (was .63 and then moving out to .65), as long as the current is so small, I don't believe this will do anything. fizzle. Big bounce, maybe moved out? Looked like it just go through a hesitation, like on 17, then hit something at 20msec. Try again, no more changes.
Mar 21 2007 02:34:13:910PM	1070321023	Steve Wolfe	Shot#23: repeat p[lasma full length. 1.8sec 800ikA, looking flat across. Almost lost it in startup though, it bounces outside at 28msec and moves way in, but recovers (may not have been a bounce, may have been a flake). Still some hesitation between 10 and 20msec, not as bad as on 17. NL04 is flat at around 7.5e19, no puff (program is 6e19) Loop voltage around 1.2V in flattop. Next: Just repeat, it will fizzle for a while anyway.
Mar 21 2007 02:43:10:987PM	1070321024	Steve Wolfe	Shot#24: repeat Fizzle, as expected. Broke down ok, 5.6msec slid back in. I notice that the chopper bias on 23 was low, There seems to be a 100V program in seg2 for the chopper voltage. Go ahead and change this to zero, which I think is the right thing.
Mar 21 2007 03:01:01:410PM	1070321025	Steve Wolfe	Shot#25: Chopper voltage from +100V to 0. in seg 2 No startup changes. Cycle problem again - NO POWER SHOT
Mar 21 2007 03:28:32:143PM	1070321026	Steve Wolfe	Shot#26: Chopper voltage from +100V to 0. in seg 2 No startup changes. Plasma disrupted at .37sec. Longer hesitation, started moving back in with out a noticeable bounce or injection. Halpha signal is through the roof during the shot, never got above 600kA. Big runaway dump at 0.11sec or so. Loop voltage=2.5V Injested a lot of something from somewhere. Some light from the top before the disruption.
Mar 21 2007 03:35:23:270PM	1070321027	Steve Wolfe	Shot#27: repeat, see what happens. fizzle, no surprise there. Good early breakdown, about 5msec. Hardly any current. Looks like the zmeter is having trigger problems again. Halpha not burning out, big lumps on the CIII signal. Drop the fill back to 22msec
Mar 21 2007 03:52:10:597PM	1070321028	Steve Wolfe	Shot#28: pg4 from 25 to 22msec Just noticed that the starting rcur in seg2 is .645, while I've drawn .65 in seg1. Of course, there is also the rcur offset in seg1, presently 1500, so it probably wouldn't match anyway. Need to check, but not for this shot (already in INIT, I expect a fizzle anyhow). But got a full length plasma instead! OK, I'll take it. Slightly bouncy startup, but makes it. Some injections during flattop, also some hards early. NL04 just over 6e19, gas puff still not coming on. Ramps all the way down. It looks like there is a jump of about 3000A-m at seg switch. Maybe I should put back the old startup rcur.
Mar 21 2007 04:04:52:207PM	1070321029	Steve Wolfe	Shot#29: Load rcur in seg1 from shot#17, before I changed it. The final value was .648, so it shouldn't make any differrnce at the transition. I just want to see if it actually changes the startup at all. Fizzle. Bounces on the outside, or a flake as it moves out. This looks sort of like 22, which was after the rcur program change in seg1. I think it made no difference. Well, actually the breakdown was very late, around 11msec. Next: leave it for another shot, see if I can make it to segment switch and confirm the jump is the same.
Mar 21 2007 04:12:46:080PM	1070321030	Steve Wolfe	Shot#30: Repeat Fizzle. breakdown at 8.3msec, still a little late. Could be the rcur, could be recovering, give it one more try.
Mar 21 2007 04:33:37:267PM	1070321031	Steve Wolfe	Shot#31: Repeat After some wait for a ef3L to cool. plasma full length. ramps all the way down. Breakdown back at 5msec, bounces outside again, taking a small bite out of the current. Similar to 28, but a little worse. Getting some early runaways too. Possible marfe before 250msec Density is still just above 6e19 with no gas after .13sec Loop voltage is about 1.1V (EFIT). Ip at 0.1sec is 490kA, compared to program of 500 (now). Jump in rcur error at seg switch is similar to 28. Next: raise ic_ef4 15amps, see if I can cure the bounce that way.
Mar 21 2007 04:42:13:627PM	1070321032	Steve Wolfe	Shot#32: ef4 from -1360 to -1345 Plasma, two in a row, but there were still runaways The bolo and hards traces are delayed by about .8sec; same as zmeter I think. Still bounced on startup, No hesitation before the bounce, which was also the case on 31. Breakdown just a little later, 5.6msec. Injection around 1.0sec takes a bite from Te, not so much on current. Next: try raising pre-puff
Mar 21 2007 04:54:10:283PM	1070321033	Steve Wolfe	Shot#33: pg4 from 22 to 27msec Hang in INIT, for about 3minutes fizzle. breakdown late 7.4msec, moves in; too much gas? Next: pg4 down to 24msec for last shot.
Mar 21 2007 05:15:15:703PM	1070321034	Steve Wolfe	Shot#34: pg4 from 27 to 24msec plasma disrupted at .47sec, Halpha saturates again, sort of like shot#26. NL04 rising to over 1.3e20, gas hard off. Nice startup though, no bounce, no hesitation. Both rcur and zcur look well-controlled. No lumps or spikes on CIII or Halpha or zmeter. This is the nicest startup of the day, although breakdown is a little late, around 7.5msec. Loop voltage is over 2V throughout, current doesn't get above 700kA. That's all for today.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:13:25:830AM	Plasma	Ok
2	09:30:00:533AM	Plasma	Ok
3	09:42:28:313AM	Plasma	Ok
4	09:55:09:707AM	Plasma	Ok
5	10:08:05:003AM	Plasma	Ok
6	10:23:02:910AM	Plasma	Ok
7	10:35:42:940AM	Plasma	Ok
8	10:48:07:190AM	Plasma	Ok
9	11:16:13:940AM	Plasma	Ok
10	11:28:51:110AM	Plasma	Ok
11	11:41:30:207AM	Plasma	Ok
12	11:55:09:097AM	Plasma	Ok
13	12:07:44:707PM	Test	Bad
14	12:27:10:690PM	Test	Bad
15	12:44:53:660PM	Plasma	Ok
16	12:57:30:237PM	Plasma	Ok
17	01:10:08:033PM	Plasma	Ok
18	01:22:59:127PM	Plasma	Ok
19	01:35:33:110PM	Plasma	Ok
20	01:48:13:580PM	Plasma	Ok
21	02:01:06:207PM	Plasma	Ok
22	02:13:49:160PM	Plasma	Ok
23	02:26:15:470PM	Plasma	Ok
24	02:38:48:097PM	Plasma	Ok
26	03:18:02:360PM	Plasma	Ok
27	03:30:41:987PM	Plasma	Ok
28	03:43:17:410PM	Plasma	Ok
29	03:56:34:033PM	Plasma	Ok
30	04:08:55:237PM	Plasma	Ok
31	04:24:14:690PM	Plasma	Ok
32	04:36:40:160PM	Plasma	Ok
33	04:49:11:253PM	Plasma	Ok
34	05:03:44:220PM	Plasma	Ok