Alcator C-Mod Run 1080501 Information

Miniproposals

Miniproposal: 472

Date Filed: 3/8/2007

Title: Continued Studies of Turbulence in Low Density Ohmic Plasmas

First Author: Liang Lin

Session Leader: Liang Lin (shots 1-38)

Operators
Session leader(s):	Liang Lin
Physics operator(s):	Robert Granetz
Engineering operator(s):	Andy Pfeiffer,Bill Parkin,Bill Byford

Engineering Operator Run Comment
MP472 Continued studies of turbulence in low density ohmic plasmas Sessi

Session Leader Plans

Entered: Apr 30 2008 03:03:13:830PM

Author: Liang Lin

We will use the PCI high-k configuration to study turbulence and transport in low density ohmic plasmas where the thermal energy is mainly lost through the electron channel.

Diagnostics:
PCI will be configured to monitor short wavelength turbulence (k_R up to 60 cm^-1).
TCI, ECE, GPC, TS, and other standard diagnostics for ne/Te and Ti(0) are required.
HIREX is required for both Ti and rotation profiles.

Shot Plan:
All plasmas will be at B = 5.2 T and Ip = 0.8 MA. There will be NO ICRF/LH/DNB/Cryopump.
1. Load and duplicate 1070713009
2. Scan nel_04 from 0.6x10^20 to 0.2x10^20 m-2 with step 0.1x10^20 m-2. Each shot will be repeated 5 times for the different PCI configuration. Total 25 clean and steady ohmic plasmas are expected.

*Requested by J. Terry and I. Cziegler, Ninja puff after 1.4 sec will be allowed as long as it does not cause any trouble in lowering density in the following shot.

Physics Operators Plans

Entered: Apr 30 2008 04:30:22:740PM

Author: Robert Granetz

Engineering setup for Thursday 01 May 2008 MP472 Continued studies of turbulence in low density ohmic plasmas Session leaders: L. Lin Physics operator: R. Granetz Overnight ECDC in D2 and bake at 60 C. Run will start at 09:00 and end at 17:00. Power systems as on 1070713009 (0.8 MA, 5.2 T, lower null) A-coil configuration: +Dtop -Dbot -Jtop +Jbot; Enabled (standard configuration) Gas Setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) fill NINJA with 7 psi D2 DISABLED Enable the following gate valves and shutters, assuming no vacuum problems: ECE, VUV, Z-bolo Torvac setup: keep gate valves open during PULSE Specific diagnostics: PCI (configure to monitor short wavelengths), TCI, ECE, GPC, TS, HIREX for both Ti and rotation profiles. ------------------------------------------------------------------------------- ICRF Setup: not needed LH Setup: not needed DNB: not needed Cryopump: not needed ------------------------------------------------------------------------------- Run plan: Start from 1070713009 (0.8 MA, 5.2 T, lower null, nl_04=0.6e20 m-2, ohmic. Scan nl_04 down from 0.6 to 0.2e20 m-2 shot-to-shot in steps of 0.1e20 m-2. Each shot will be repeated 5 times with a different PCI configuration.

Session Leader Summaries

Entered: May 1 2008 05:03:30:223PM

Author: Liang Lin

Summary:

We got the discharges we desired. At B = 5.2 T and 0.8 MA, the nl_04 was scanned from ~0.18 to ~0.76 e20 m-2, which covers both "linear" and "saturated" ohmic regimes. The major fluctuation diagnostic PCI worked well today and the measurements will be analyzed in detail. Hirex also worked well to provide the ion temperature profiles for gyrokinetic simulation and transport analysis. In general, it was a great run day. Thank you all.

Physics Operator Summaries

Entered: May 1 2008 04:59:41:127PM

Author: Robert Granetz

Run summary for Thursday 01 May 2008 MP472 Continued studies of turbulence in low density ohmic plasmas Session leaders: L. Lin Physics operator: R. Granetz The machine ran extremely well today with these low density ohmic plasmas. We were able to get down to densities as low as nl_04=0.18e20 m-2, although these lowest density shots had lots of hard x-rays coming up later in the shot. The start of the run was delayed by about a half-hour to do some test shots to check out some possible issues with DPCS after yesterday's work on it. Some loose connectors were found, and corrected. Scorecard: 32 plasmas 1 duds 1 fizzles 2 power supply tests 2 no-power MDS shot cycles -------------- Total: 38 shot cycles

Session Leader Comments

May 1 2008 08:53:10:990AM 1080501001 Liang Lin Cell access for TS

May 1 2008 09:53:20:333AM 1080501005 Liang Lin Good plasma. Next Shot: Repeat.

May 1 2008 10:02:51:450AM 1080501006 Liang Lin Steady plasma. Next Shot: Repeat.

May 1 2008 10:13:42:690AM 1080501007 Liang Lin Steady plasma. Next Shot: Repeat.

May 1 2008 10:26:06:060AM 1080501008 Liang Lin Steady plasma. Next Shot: No change. Repeat @ the same nl_0.4 = 0.6e20 m^-2

May 1 2008 10:39:06:663AM 1080501009 Liang Lin Steady plasma. Next Shot: No change. Repeat @ the same nl_0.4 = 0.6e20 m^-2

May 1 2008 10:53:39:050AM 1080501010 Liang Lin Steady plasma. Next Shot: Lower nl_0.4 = 0.5e20 m^-2

May 1 2008 11:20:36:280AM 1080501011 Liang Lin Steady plasma. nl_04 = 0.55e20 m^-2. Try again to see if we can lower nl_0.4 to 0.5e20 m^-2.

May 1 2008 11:17:26:893AM 1080501012 Liang Lin Steady plasma. nl_04 = 0.47e20 m^-2. Repeat at the same nl_04.

May 1 2008 11:30:07:250AM 1080501013 Liang Lin Steady plasma. Repeat at the same nl_04.

May 1 2008 11:41:11:460AM 1080501014 Liang Lin Steady plasma. Repeat at the same nl_04.

May 1 2008 11:55:48:253AM 1080501015 Liang Lin Steady plasma. Repeat at the same nl_04 ~0.47e20 m^-2.

May 1 2008 12:09:11:890PM 1080501016 Liang Lin Steady plasma. Next shot: Lower nl_0.4 to 0.35e20 m-2.

May 1 2008 12:25:24:073PM 1080501017 Liang Lin Steady plasma. Next shot: Repeat.

May 1 2008 12:35:13:847PM 1080501018 Liang Lin Steady plasma. nl_04=0.37e20 m-2. Next shot: Repeat.

May 1 2008 12:47:05:027PM 1080501019 Liang Lin Steady plasma. nl_04=0.37e20 m-2. Next shot: Repeat.

May 1 2008 01:00:43:413PM 1080501020 Liang Lin Steady plasma. nl_04=0.38e20 m-2. Next shot: Repeat.

May 1 2008 01:12:45:157PM 1080501021 Liang Lin Steady plasma. nl_04=0.38e20 m-2.

So far, we have covered three densities:
nebar : 0.83, 0.66, 0.52; [e20 m^-3]
tau_kin : 38, 36, 32; [ms]

Next shot: lower nl_04 to 0.25 e20 m^-2

May 1 2008 01:28:35:560PM 1080501022 Liang Lin nl_04 ~ 0.26 e20 m-2 and tau_kin ~ 25 msec. The plasma is in the linear ohmic regime now.
Next shot: same nl_04.

May 1 2008 01:40:11:990PM 1080501023 Liang Lin nl_04 ~ 0.22-0.25 e20 m-2 and tau_kin ~ 25 msec.

Next shot: Repeat.

May 1 2008 01:55:28:487PM 1080501024 Liang Lin nl_04 ~ 0.25 e20 m-2 and tau_kin ~ 25 msec.

Next shot: Repeat. Two more repeats to go at this density.

May 1 2008 02:08:43:120PM 1080501025 Liang Lin nl_04 ~ 0.26 e20 m-2 and tau_kin ~ 27 msec.

Next shot: One more repeat.

May 1 2008 02:19:02:753PM 1080501026 Liang Lin nl_04 ~ 0.24 e20 m-2 and tau_kin ~ 24 msec.

Next shot: Lower nl_0.4 to 0.18 e20 m-2.

May 1 2008 02:34:58:780PM 1080501027 Liang Lin Good shot. nl_04 ~ 0.20 e20 m-2 and tau_kin ~ 20 msec.

Next shot: lower nl_04 a little more.

May 1 2008 02:44:44:460PM 1080501028 Liang Lin Good plasma. nl_04 ~ 0.18 e20 m-2 and tau_kin ~ 18 msec.

Next shot: Repeat.

May 1 2008 03:01:40:960PM 1080501029 Liang Lin Good plasma. nl_04 ~ 0.17 e20 m-2 and tau_kin ~ 18 msec.

Next shot: Repeat.

May 1 2008 03:14:43:030PM 1080501030 Liang Lin Next shot: Try again.

May 1 2008 03:25:26:447PM 1080501031 Liang Lin nl_04 ~ 0.18-0.19 e20 m-2 and tau_kin ~ 25 msec.

Next shot: Repeat.

May 1 2008 03:39:39:207PM 1080501032 Liang Lin nl_04 ~ 0.17 e20 m-2 and tau_kin ~ 23 msec.

Next shot: Repeat.

May 1 2008 03:53:02:497PM 1080501033 Liang Lin nl_04 ~ 0.18-0.19 e20 m-2 and tau_kin ~ 18 msec.

Next shot: Repeat.

May 1 2008 04:10:34:700PM 1080501034 Liang Lin nl_04 ~ 0.17 e20 m-2 and tau_kin ~ 22 msec.

Next shot: Increase nl_04 to 0.7 e20 m-2 for more one data point in the saturated ohmic regime.

May 1 2008 04:18:37:767PM 1080501035 Liang Lin nl_04 ~ 0.7 e20 m-2 and tau_kin ~ 34 msec.

Next shot: Repeat.

May 1 2008 04:31:54:700PM 1080501036 Liang Lin nl_04 ~ 0.73 e20 m-2 and tau_kin ~ 34 msec.

Next shot: Repeat.

Physics Operator Comments

Apr 30 2008 04:26:41:253PM Robert Granetz Loaded DPCS seg 1 from 1080430031 seg 1 (one of the typical startups from previous day).
Loaded DPCS seg 2 from 1070713009 seg 2, as per session leader's plan. 'Call'ed all the
magnetics predictors to update them. Confirmed that Bt=5.2 T, Ip=0.8 MA, nl_04=0.55e20 m-2.
Turned on seg 2 and made sure that segs 3 and 4 are turned off.

Saved as shot 1080501000 in /home/granetz/pcs_scratch.

May 1 2008 08:40:57:260AM 1080501001 Robert Granetz Shot 01 -- no-power MDS shot cycle test

Next shot: EF4 PLC-controlled test of DPCS.

May 1 2008 09:10:19:643AM 1080501002 Robert Granetz I have programmed in a 6 mm outward ramp in RCUR from t=1.4-1.5 s at the
request of Jim Terry, who wants a scan of the outer gap from 17 mm to
5 mm (i.e. a 12 mm range), without changing the inboard gap.

May 1 2008 09:19:07:773AM 1080501002 Robert Granetz Shot 02 -- power supply test; actually it's a test of the DPCS, using a PLC-controlled EF4 shot.
This test has shown that there's a serious problem with the DPCS CPCI digitizer rack.

There will be a delay while Steve Wolfe and Marco Ferrara check into this. There
may be a dislodged ribbon cable.

Yep, they've connected the cable back up. Try another test shot.

May 1 2008 09:22:08:090AM 1080501003 Robert Granetz Shot 03 -- power supply test; actually it's a 2nd test of the DPCS, using a
PLC-controlled EF4 shot. Everything looks okay now.

Next shot: go for plasma (with the outer gap scan late in the flattop); there will
also be a 100 ms argon puff

May 1 2008 09:32:37:253AM 1080501004 Robert Granetz Shot 04 -- no-power shot cycle; engineering setup mistake

Next shot: plasma for sure

May 1 2008 09:55:55:803AM 1080501005 Robert Granetz Shot 05 -- Plasma. Good shot. 0.8 MA, 5.2 T, nl_04=0.6e20 m-2, lower single null.
Good outer gap scan late in the flattop. I had directed that the DNB be on
at Igor's request, and we had a nice beam shot, but this gives a lot of noise
pickup on Liang's PCI, so we'll have to turn off the beam for the rest of the
day.

Next shot: repeat; turn off the DNB for the rest of the day; slight tweak to outer gap
after t=1.5 s

May 1 2008 10:09:37:330AM 1080501006 Robert Granetz Shot 06 -- Plasma. Good shot. nl_04=0.6e20 m-2. No beam.

Next shot: extend flattop by 50 ms (many wires have to be extended); also extend
Btor flattop to t=1.55 s.

May 1 2008 10:15:50:990AM 1080501007 Robert Granetz Shot 07 -- Plasma. Good shot. nl_04=0.6e20 m-2. Flattop extended to t=1.55 s.

Next shot: repeat, no changes

May 1 2008 10:33:10:613AM 1080501008 Robert Granetz Shot 08 -- Plasma. Good shot. nl_04=0.6e20 m-2.

Next shot: repeat; tweak outer gap scan after t=1.5 s (RCUR wire)

May 1 2008 10:39:35:367AM 1080501009 Robert Granetz Shot 09 -- Plasma. Good shot. nl_04=0.6e20 m-2

Next shot: repeat; another tweak to outer gap scan after t=1.5 s

May 1 2008 10:53:58:143AM 1080501010 Robert Granetz Shot 10 -- Plasma. Good shot. nl_04=0.6e20 m-2.

Next shot: decrease nl_04 to 0.5e20 m-2; more tweaking of outer gap scan after t=1.5 s

May 1 2008 11:08:19:040AM 1080501011 Robert Granetz Shot 11 -- Plasma. Good shot. nl_04=0.55e20 m-2.

Next shot: decrease nl_04 some more, trying to get 0.5e20 m-2; more tweaks to outer gap scan

May 1 2008 11:21:59:437AM 1080501012 Robert Granetz Shot 12 -- Plasma. Good shot. nl_04=0.47e20 m-2. Lithium pellet is being fired
at t=1.75 s.

Next shot: another tweak to outer gap scan; continue firing LPI at t=1.75 s

May 1 2008 11:32:30:970AM 1080501013 Robert Granetz Shot 13 -- Plasma. Good shot. nl_04=0.44e20 m-2.

Next shot: more outer gap tweaks, otherwise repeat

May 1 2008 11:43:39:430AM 1080501014 Robert Granetz Shot 14 -- Plasma. Good shot. nl_04=0.46e20 m-2.

Next shot: no changes

May 1 2008 12:02:52:273PM 1080501015 Robert Granetz Shot 15 -- Plasma. Good shot. nl_04=0.46e20 m-2

Next shot: repeat, no changes

May 1 2008 12:09:41:920PM 1080501016 Robert Granetz Shot 16 -- Plasma. Good shot. nl_04=0.46e20 m-2.

Next shot: decrease nl_04 to 0.35e20 m-2.

May 1 2008 12:22:41:477PM 1080501017 Robert Granetz Shot 17 -- Plasma. Good shot. nl_04=0.35e20 m-2.

Next shot: repeat

May 1 2008 12:33:36:267PM 1080501018 Robert Granetz Shot 18 -- Plasma. Good shot. nl_04=0.37e20 m-2.

Next shot: repeat, no changes

May 1 2008 12:46:21:667PM 1080501019 Robert Granetz Shot 19 -- Plasma. Good shot. nl_04=0.37-0.38e20 m-2

Next shot: repeat, no changes

May 1 2008 12:57:51:927PM 1080501020 Robert Granetz Shot 20 -- Plasma. Good shot. nl_04=0.38e20 m-2

Next shot: repeat, no changes

May 1 2008 01:12:29:360PM 1080501021 Robert Granetz Shot 21 -- Plasma. Good shot. nl_04=0.37e20 m-2

Next shot: decrease nl_04 to 0.25e20 m-2

May 1 2008 01:24:38:383PM 1080501022 Robert Granetz Shot 22 -- Plasma. Good shot. nl_04=0.26-0.27e20 m-2. Lots of hard x-rays; probably can't
avoid those at this density. Startup wasn't as good as all previous shots.

Next shot: increase pre-fill by 3 ms

May 1 2008 01:40:52:427PM 1080501023 Robert Granetz Shot 23 -- Plasma. Good shot. nl_04= 0.28 -> 0.22 m-2. Startup is good again.
Lots of hard x-rays, but not during the early part of the discharge.
Density feedback is still working well (i.e. no need to turn off the
argon puff so far).

Next shot: repeat, no changes

May 1 2008 01:50:59:733PM 1080501024 Robert Granetz Shot 24 -- Plasma. Good shot. nl_04=0.24-0.25e20 m-2.

Next shot: repeat, no changes

May 1 2008 02:02:34:147PM 1080501025 Robert Granetz Shot 25 -- Plasma. Good shot. nl_04=0.24-0.25e20 m-2

Next shot: repeat, no changes

May 1 2008 02:20:43:147PM 1080501026 Robert Granetz Shot 26 -- Plasma. Good shot. nl_04=0.22-0.24e20 m-2. Lots of hard x-rays later in the shot.

Next shot: decrease nl_04 to 0.18e20 m-2

May 1 2008 02:32:04:873PM 1080501027 Robert Granetz Shot 27 -- Plasma. Good shot. nl_04=0.20e20 m-2

Next shot: reduce nl_04 a bit more, hoping to get 0.18e20 m-2

May 1 2008 02:43:42:023PM 1080501028 Robert Granetz Shot 28 -- Plasma. Good shot. nl_04=0.15-0.18e20 m-2. Horrendous runaways, but still not during
the early part of the shot.

Next shot: repeat, no changes

May 1 2008 02:56:45:063PM 1080501029 Robert Granetz Shot 29 -- Plasma. Good shot. nl_04=0.16-0.18e20 m-2. Lots of hard x-rays, and several
sudden dumps of non-thermals at various times during the discharge.

Next shot: repeat, no changes

May 1 2008 03:19:53:520PM 1080501030 Robert Granetz Shot 30 -- Plasma...something's wrong with this one. Plasma dies a slow death before t=0.5 s due
to many small disruptions. Don't know why though. But the disruptions began
just when the argon puffing starts.

Next shot: try again, but disable the argon puff

May 1 2008 03:27:48:023PM 1080501031 Robert Granetz Shot 31 -- Plasma. Good shot. nl_04=0.18e20 m-2. Hard x-ray signal saturates again,
but there are still none at the start of the shot.

Next shot: repeat, but re-enable the argon valve. However, reduce the puff length
to 75 ms (from 100 ms)

May 1 2008 03:43:26:660PM 1080501032 Robert Granetz Shot 32 -- Plasma. Good shot. nl_04=0.16e20 m-2. Argon was on, with a 75 ms puff.

Next shot: repeat, no changes; leave argon puff at 75 ms

May 1 2008 03:54:49:360PM 1080501033 Robert Granetz Shot 33 -- Plasma. Good shot. nl_04=0.18e20 m-2

Next shot: repeat, no changes

May 1 2008 04:14:11:297PM 1080501034 Robert Granetz Shot 34 -- Plasma. Good shot. nl_04=0.17e20 m-2

Next shot: increase nl_04 to 0.7e20 m-2; also set the argon puff back to 100 ms

May 1 2008 04:19:02:063PM 1080501035 Robert Granetz Shot 35 -- Plasma. Good shot. nl_04=0.7e20 m-2.

Next shot: repeat, no changes

May 1 2008 04:33:56:107PM 1080501036 Robert Granetz Shot 36 -- Plasma. Good shot. nl_04=0.72-0.74e20 m-2.

Next shot: repeat, no changes

May 1 2008 04:45:48:943PM 1080501037 Robert Granetz Shot 37 -- Fizzle. No idea why.

Next shot: try again

May 1 2008 04:58:30:923PM 1080501038 Robert Granetz Shot 38 -- Dud. OH2L crowbarred well before commutation.

End of run.

Engineering Operator Comments

Shot Time Type Status Comment

1 08:39:08:480AM Test Ok Cycle test

2 09:01:28:400AM Test Bad EF4 forward Bridge 1KV 2Ka

3 09:14:00:753AM Test Ok EF4 Forward Bridge 1KV 2KA

4 09:29:56:143AM Plasma Bad Engineer faied to load Supply setup

5 09:44:46:623AM Plasma Ok

6 09:57:14:430AM Plasma Ok

7 10:09:49:767AM Plasma Ok

8 10:22:23:417AM Plasma Ok

9 10:34:55:253AM Plasma Ok

10 10:47:37:547AM Plasma Ok

11 11:00:12:650AM Plasma Ok

12 11:12:45:600AM Plasma Ok

13 11:25:42:230AM Plasma Ok

14 11:38:14:130AM Plasma Ok

15 11:50:49:593AM Plasma Ok

16 12:03:41:620PM Plasma Ok

17 12:18:01:223PM Plasma Ok

18 12:30:28:187PM Plasma Ok

19 12:42:54:100PM Plasma Ok

20 12:55:27:660PM Plasma Ok

21 01:08:02:403PM Plasma Ok

22 01:20:32:927PM Plasma Ok

23 01:33:15:280PM Plasma Ok

24 01:46:04:167PM Plasma Ok

25 01:59:13:893PM Plasma Ok

26 02:13:33:483PM Plasma Ok

27 02:26:55:980PM Plasma Ok

28 02:40:18:223PM Plasma Ok

29 02:52:49:903PM Plasma Ok

30 03:06:07:493PM Plasma Ok

31 03:18:38:987PM Plasma Ok

32 03:32:57:437PM Plasma Ok

33 03:48:12:150PM Plasma Ok

34 04:00:41:130PM Plasma Ok

35 04:14:07:857PM Plasma Ok

36 04:27:04:383PM Plasma Ok

37 04:39:33:830PM Plasma Ok

38 04:52:47:950PM Plasma Bad OH Commutation fault

System Availability

May 1 2008 08:38:58:463AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD yes Fully operational Mar 28 2007 09:19PM (sears) 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,rowan
Bolometers yes Diode 2pi working fine, foil 2pi being low-pass filtered to remove noise. Outboard miidplane AXUV has a grounded channel which is disrupting the whole array OFFLINE for now. Midplane foils working fine, but need to fill tree with calibrations. 2D AXUV arrays are being digitized but need further debugging and calibration. Mar 14 2008 11:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes System Operational Apr 29 2008 03:29PM (irby) Jim Irby Boronization dekow,irby
CNPA yes Single channel CNPA available as of 12/1707 Dec 17 2007 05:48PM (parker) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Cryopump is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersect the beam at the major_R_range=[74.2:86.3]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[67.8:91.0]cm. Spatial resolution: 1.22 cm. Nov 27 2007 10:21AM (bespam) 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 Nov 26 2007 04:23PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes optics repaired, camera re-installed, and view has been re-calibrated Nov 27 2007 09:54AM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Nov 20 2007 10:47PM (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 Nov 20 2007 10:47PM (granetz) Robert Granetz Diagnostic Neutral Beam beals,granetz
FRC-ECE yes 16 Channels now working - low freq. side - outer Rmids Feb 19 2008 09:56AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge is operational and calibrated against G-side MKS on shot#1071127002 Nov 27 2007 01:25PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes All 9 channels operational as of new year. Jan 03 2008 09:31AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jan 02 2008 12:22PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Neither the Xpt-view nor the midplane-view camera is operational. Nov 26 2007 04:25PM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes Should be operational for the FY08 campaign Nov 27 2007 09:54AM (marmar) Earl Marmar H/D Ratio marmar
Hirex Jr yes Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr no Be Window has a leak and so the gate valve is closed Nov 23 2007 12:50PM (ince) John Rice High Resolution X-Ray ince,rice
HXR yes Something might be wrong with channel 26; all others working fine. Mar 23 2007 10:43AM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes available (quarter-wave transformer for pre-matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes available (with FFT for automatical matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes normally in [0,pi,pi,0] phase for heating. current drive phase available if requested. Dec 11 2007 09:03AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid yes Body I Fault Circuits Repaired and tested. High power tests completed Dec 05 2007 06:40PM (dterry) Ron Parker Lower Hybrid dterry,parker
LPI yes 1/9/08 Jan 09 2008 03:23PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane working fine, emissivity profiles being stored in tree, but still need to apply in-vessel calibrations to data. WB1-LY being digitized, but not processed in tree. Dec 09 2007 06:53PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson no Problems with detector. No quantitative line brightnesses possible. Qualitative tasks like impurity identification possible. Feb 15 2008 02:07PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational Apr 29 2008 02:30PM (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 Initial tests on the A-port scanning probe went well. We need to take care of some control glitches that caused some component failures. May 30 2007 08:01PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no We are basically awaiting the DNB & its new aperture. MSE itself is OK. Feb 21 2008 08:51AM (jinseok) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Voltage is on for the He3 bank. Voltage will be turned on for the global system at the first plasma attempts. Nov 26 2007 08:31AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes calibration unchanged from 2007 campaign Dec 04 2007 08:56PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. Nov 26 2007 04:26PM (terry) Brian LaBombard NINJA gas puff labombard,terry
PCI yes working Feb 29 2008 07:00PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes All gauges except B_DivL are operating Nov 27 2007 01:31PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Nov 26 2007 04:27PM (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
Probe Array - ISD yes Operational Nov 27 2007 01:40PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational Nov 27 2007 01:40PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes System is fully connected except for the 75GHz channel. System was connected on 1080422. Apr 22 2008 08:26AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Operational, but needs to be checked with plasma. Nov 27 2007 01:45PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes FSP is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes A- and K-port WASP electrodes have been replaced/tested. Nov 27 2007 01:44PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes Operational Apr 29 2008 03:33PM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes One laser operational, 12 spatial channels Apr 11 2008 10:36AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma
TS - Edge yes System is working with 3 out of 4 spectral channels and should be believable for Te>50eV, ne>3e19. Density is calibrated from both Raman scattering in D2 (3/2/08) and from edge ECE cutoffs in high-density H-modes (1080228014). Apr 11 2008 10:36AM (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
XTOMO yes system operational, but channels have been dying...stay tuned. Mar 14 2008 11:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
May 1 2008 08:53:10:990AM	1080501001	Liang Lin	Cell access for TS
May 1 2008 09:53:20:333AM	1080501005	Liang Lin	Good plasma. Next Shot: Repeat.
May 1 2008 10:02:51:450AM	1080501006	Liang Lin	Steady plasma. Next Shot: Repeat.
May 1 2008 10:13:42:690AM	1080501007	Liang Lin	Steady plasma. Next Shot: Repeat.
May 1 2008 10:26:06:060AM	1080501008	Liang Lin	Steady plasma. Next Shot: No change. Repeat @ the same nl_0.4 = 0.6e20 m^-2
May 1 2008 10:39:06:663AM	1080501009	Liang Lin	Steady plasma. Next Shot: No change. Repeat @ the same nl_0.4 = 0.6e20 m^-2
May 1 2008 10:53:39:050AM	1080501010	Liang Lin	Steady plasma. Next Shot: Lower nl_0.4 = 0.5e20 m^-2
May 1 2008 11:20:36:280AM	1080501011	Liang Lin	Steady plasma. nl_04 = 0.55e20 m^-2. Try again to see if we can lower nl_0.4 to 0.5e20 m^-2.
May 1 2008 11:17:26:893AM	1080501012	Liang Lin	Steady plasma. nl_04 = 0.47e20 m^-2. Repeat at the same nl_04.
May 1 2008 11:30:07:250AM	1080501013	Liang Lin	Steady plasma. Repeat at the same nl_04.
May 1 2008 11:41:11:460AM	1080501014	Liang Lin	Steady plasma. Repeat at the same nl_04.
May 1 2008 11:55:48:253AM	1080501015	Liang Lin	Steady plasma. Repeat at the same nl_04 ~0.47e20 m^-2.
May 1 2008 12:09:11:890PM	1080501016	Liang Lin	Steady plasma. Next shot: Lower nl_0.4 to 0.35e20 m-2.
May 1 2008 12:25:24:073PM	1080501017	Liang Lin	Steady plasma. Next shot: Repeat.
May 1 2008 12:35:13:847PM	1080501018	Liang Lin	Steady plasma. nl_04=0.37e20 m-2. Next shot: Repeat.
May 1 2008 12:47:05:027PM	1080501019	Liang Lin	Steady plasma. nl_04=0.37e20 m-2. Next shot: Repeat.
May 1 2008 01:00:43:413PM	1080501020	Liang Lin	Steady plasma. nl_04=0.38e20 m-2. Next shot: Repeat.
May 1 2008 01:12:45:157PM	1080501021	Liang Lin	Steady plasma. nl_04=0.38e20 m-2. So far, we have covered three densities: nebar : 0.83, 0.66, 0.52; [e20 m^-3] tau_kin : 38, 36, 32; [ms] Next shot: lower nl_04 to 0.25 e20 m^-2
May 1 2008 01:28:35:560PM	1080501022	Liang Lin	nl_04 ~ 0.26 e20 m-2 and tau_kin ~ 25 msec. The plasma is in the linear ohmic regime now. Next shot: same nl_04.
May 1 2008 01:40:11:990PM	1080501023	Liang Lin	nl_04 ~ 0.22-0.25 e20 m-2 and tau_kin ~ 25 msec. Next shot: Repeat.
May 1 2008 01:55:28:487PM	1080501024	Liang Lin	nl_04 ~ 0.25 e20 m-2 and tau_kin ~ 25 msec. Next shot: Repeat. Two more repeats to go at this density.
May 1 2008 02:08:43:120PM	1080501025	Liang Lin	nl_04 ~ 0.26 e20 m-2 and tau_kin ~ 27 msec. Next shot: One more repeat.
May 1 2008 02:19:02:753PM	1080501026	Liang Lin	nl_04 ~ 0.24 e20 m-2 and tau_kin ~ 24 msec. Next shot: Lower nl_0.4 to 0.18 e20 m-2.
May 1 2008 02:34:58:780PM	1080501027	Liang Lin	Good shot. nl_04 ~ 0.20 e20 m-2 and tau_kin ~ 20 msec. Next shot: lower nl_04 a little more.
May 1 2008 02:44:44:460PM	1080501028	Liang Lin	Good plasma. nl_04 ~ 0.18 e20 m-2 and tau_kin ~ 18 msec. Next shot: Repeat.
May 1 2008 03:01:40:960PM	1080501029	Liang Lin	Good plasma. nl_04 ~ 0.17 e20 m-2 and tau_kin ~ 18 msec. Next shot: Repeat.
May 1 2008 03:14:43:030PM	1080501030	Liang Lin	Next shot: Try again.
May 1 2008 03:25:26:447PM	1080501031	Liang Lin	nl_04 ~ 0.18-0.19 e20 m-2 and tau_kin ~ 25 msec. Next shot: Repeat.
May 1 2008 03:39:39:207PM	1080501032	Liang Lin	nl_04 ~ 0.17 e20 m-2 and tau_kin ~ 23 msec. Next shot: Repeat.
May 1 2008 03:53:02:497PM	1080501033	Liang Lin	nl_04 ~ 0.18-0.19 e20 m-2 and tau_kin ~ 18 msec. Next shot: Repeat.
May 1 2008 04:10:34:700PM	1080501034	Liang Lin	nl_04 ~ 0.17 e20 m-2 and tau_kin ~ 22 msec. Next shot: Increase nl_04 to 0.7 e20 m-2 for more one data point in the saturated ohmic regime.
May 1 2008 04:18:37:767PM	1080501035	Liang Lin	nl_04 ~ 0.7 e20 m-2 and tau_kin ~ 34 msec. Next shot: Repeat.
May 1 2008 04:31:54:700PM	1080501036	Liang Lin	nl_04 ~ 0.73 e20 m-2 and tau_kin ~ 34 msec. Next shot: Repeat.

Physics Operator Comments
Apr 30 2008 04:26:41:253PM		Robert Granetz	Loaded DPCS seg 1 from 1080430031 seg 1 (one of the typical startups from previous day). Loaded DPCS seg 2 from 1070713009 seg 2, as per session leader's plan. 'Call'ed all the magnetics predictors to update them. Confirmed that Bt=5.2 T, Ip=0.8 MA, nl_04=0.55e20 m-2. Turned on seg 2 and made sure that segs 3 and 4 are turned off. Saved as shot 1080501000 in /home/granetz/pcs_scratch.
May 1 2008 08:40:57:260AM	1080501001	Robert Granetz	Shot 01 -- no-power MDS shot cycle test Next shot: EF4 PLC-controlled test of DPCS.
May 1 2008 09:10:19:643AM	1080501002	Robert Granetz	I have programmed in a 6 mm outward ramp in RCUR from t=1.4-1.5 s at the request of Jim Terry, who wants a scan of the outer gap from 17 mm to 5 mm (i.e. a 12 mm range), without changing the inboard gap.
May 1 2008 09:19:07:773AM	1080501002	Robert Granetz	Shot 02 -- power supply test; actually it's a test of the DPCS, using a PLC-controlled EF4 shot. This test has shown that there's a serious problem with the DPCS CPCI digitizer rack. There will be a delay while Steve Wolfe and Marco Ferrara check into this. There may be a dislodged ribbon cable. Yep, they've connected the cable back up. Try another test shot.
May 1 2008 09:22:08:090AM	1080501003	Robert Granetz	Shot 03 -- power supply test; actually it's a 2nd test of the DPCS, using a PLC-controlled EF4 shot. Everything looks okay now. Next shot: go for plasma (with the outer gap scan late in the flattop); there will also be a 100 ms argon puff
May 1 2008 09:32:37:253AM	1080501004	Robert Granetz	Shot 04 -- no-power shot cycle; engineering setup mistake Next shot: plasma for sure
May 1 2008 09:55:55:803AM	1080501005	Robert Granetz	Shot 05 -- Plasma. Good shot. 0.8 MA, 5.2 T, nl_04=0.6e20 m-2, lower single null. Good outer gap scan late in the flattop. I had directed that the DNB be on at Igor's request, and we had a nice beam shot, but this gives a lot of noise pickup on Liang's PCI, so we'll have to turn off the beam for the rest of the day. Next shot: repeat; turn off the DNB for the rest of the day; slight tweak to outer gap after t=1.5 s
May 1 2008 10:09:37:330AM	1080501006	Robert Granetz	Shot 06 -- Plasma. Good shot. nl_04=0.6e20 m-2. No beam. Next shot: extend flattop by 50 ms (many wires have to be extended); also extend Btor flattop to t=1.55 s.
May 1 2008 10:15:50:990AM	1080501007	Robert Granetz	Shot 07 -- Plasma. Good shot. nl_04=0.6e20 m-2. Flattop extended to t=1.55 s. Next shot: repeat, no changes
May 1 2008 10:33:10:613AM	1080501008	Robert Granetz	Shot 08 -- Plasma. Good shot. nl_04=0.6e20 m-2. Next shot: repeat; tweak outer gap scan after t=1.5 s (RCUR wire)
May 1 2008 10:39:35:367AM	1080501009	Robert Granetz	Shot 09 -- Plasma. Good shot. nl_04=0.6e20 m-2 Next shot: repeat; another tweak to outer gap scan after t=1.5 s
May 1 2008 10:53:58:143AM	1080501010	Robert Granetz	Shot 10 -- Plasma. Good shot. nl_04=0.6e20 m-2. Next shot: decrease nl_04 to 0.5e20 m-2; more tweaking of outer gap scan after t=1.5 s
May 1 2008 11:08:19:040AM	1080501011	Robert Granetz	Shot 11 -- Plasma. Good shot. nl_04=0.55e20 m-2. Next shot: decrease nl_04 some more, trying to get 0.5e20 m-2; more tweaks to outer gap scan
May 1 2008 11:21:59:437AM	1080501012	Robert Granetz	Shot 12 -- Plasma. Good shot. nl_04=0.47e20 m-2. Lithium pellet is being fired at t=1.75 s. Next shot: another tweak to outer gap scan; continue firing LPI at t=1.75 s
May 1 2008 11:32:30:970AM	1080501013	Robert Granetz	Shot 13 -- Plasma. Good shot. nl_04=0.44e20 m-2. Next shot: more outer gap tweaks, otherwise repeat
May 1 2008 11:43:39:430AM	1080501014	Robert Granetz	Shot 14 -- Plasma. Good shot. nl_04=0.46e20 m-2. Next shot: no changes
May 1 2008 12:02:52:273PM	1080501015	Robert Granetz	Shot 15 -- Plasma. Good shot. nl_04=0.46e20 m-2 Next shot: repeat, no changes
May 1 2008 12:09:41:920PM	1080501016	Robert Granetz	Shot 16 -- Plasma. Good shot. nl_04=0.46e20 m-2. Next shot: decrease nl_04 to 0.35e20 m-2.
May 1 2008 12:22:41:477PM	1080501017	Robert Granetz	Shot 17 -- Plasma. Good shot. nl_04=0.35e20 m-2. Next shot: repeat
May 1 2008 12:33:36:267PM	1080501018	Robert Granetz	Shot 18 -- Plasma. Good shot. nl_04=0.37e20 m-2. Next shot: repeat, no changes
May 1 2008 12:46:21:667PM	1080501019	Robert Granetz	Shot 19 -- Plasma. Good shot. nl_04=0.37-0.38e20 m-2 Next shot: repeat, no changes
May 1 2008 12:57:51:927PM	1080501020	Robert Granetz	Shot 20 -- Plasma. Good shot. nl_04=0.38e20 m-2 Next shot: repeat, no changes
May 1 2008 01:12:29:360PM	1080501021	Robert Granetz	Shot 21 -- Plasma. Good shot. nl_04=0.37e20 m-2 Next shot: decrease nl_04 to 0.25e20 m-2
May 1 2008 01:24:38:383PM	1080501022	Robert Granetz	Shot 22 -- Plasma. Good shot. nl_04=0.26-0.27e20 m-2. Lots of hard x-rays; probably can't avoid those at this density. Startup wasn't as good as all previous shots. Next shot: increase pre-fill by 3 ms
May 1 2008 01:40:52:427PM	1080501023	Robert Granetz	Shot 23 -- Plasma. Good shot. nl_04= 0.28 -> 0.22 m-2. Startup is good again. Lots of hard x-rays, but not during the early part of the discharge. Density feedback is still working well (i.e. no need to turn off the argon puff so far). Next shot: repeat, no changes
May 1 2008 01:50:59:733PM	1080501024	Robert Granetz	Shot 24 -- Plasma. Good shot. nl_04=0.24-0.25e20 m-2. Next shot: repeat, no changes
May 1 2008 02:02:34:147PM	1080501025	Robert Granetz	Shot 25 -- Plasma. Good shot. nl_04=0.24-0.25e20 m-2 Next shot: repeat, no changes
May 1 2008 02:20:43:147PM	1080501026	Robert Granetz	Shot 26 -- Plasma. Good shot. nl_04=0.22-0.24e20 m-2. Lots of hard x-rays later in the shot. Next shot: decrease nl_04 to 0.18e20 m-2
May 1 2008 02:32:04:873PM	1080501027	Robert Granetz	Shot 27 -- Plasma. Good shot. nl_04=0.20e20 m-2 Next shot: reduce nl_04 a bit more, hoping to get 0.18e20 m-2
May 1 2008 02:43:42:023PM	1080501028	Robert Granetz	Shot 28 -- Plasma. Good shot. nl_04=0.15-0.18e20 m-2. Horrendous runaways, but still not during the early part of the shot. Next shot: repeat, no changes
May 1 2008 02:56:45:063PM	1080501029	Robert Granetz	Shot 29 -- Plasma. Good shot. nl_04=0.16-0.18e20 m-2. Lots of hard x-rays, and several sudden dumps of non-thermals at various times during the discharge. Next shot: repeat, no changes
May 1 2008 03:19:53:520PM	1080501030	Robert Granetz	Shot 30 -- Plasma...something's wrong with this one. Plasma dies a slow death before t=0.5 s due to many small disruptions. Don't know why though. But the disruptions began just when the argon puffing starts. Next shot: try again, but disable the argon puff
May 1 2008 03:27:48:023PM	1080501031	Robert Granetz	Shot 31 -- Plasma. Good shot. nl_04=0.18e20 m-2. Hard x-ray signal saturates again, but there are still none at the start of the shot. Next shot: repeat, but re-enable the argon valve. However, reduce the puff length to 75 ms (from 100 ms)
May 1 2008 03:43:26:660PM	1080501032	Robert Granetz	Shot 32 -- Plasma. Good shot. nl_04=0.16e20 m-2. Argon was on, with a 75 ms puff. Next shot: repeat, no changes; leave argon puff at 75 ms
May 1 2008 03:54:49:360PM	1080501033	Robert Granetz	Shot 33 -- Plasma. Good shot. nl_04=0.18e20 m-2 Next shot: repeat, no changes
May 1 2008 04:14:11:297PM	1080501034	Robert Granetz	Shot 34 -- Plasma. Good shot. nl_04=0.17e20 m-2 Next shot: increase nl_04 to 0.7e20 m-2; also set the argon puff back to 100 ms
May 1 2008 04:19:02:063PM	1080501035	Robert Granetz	Shot 35 -- Plasma. Good shot. nl_04=0.7e20 m-2. Next shot: repeat, no changes
May 1 2008 04:33:56:107PM	1080501036	Robert Granetz	Shot 36 -- Plasma. Good shot. nl_04=0.72-0.74e20 m-2. Next shot: repeat, no changes
May 1 2008 04:45:48:943PM	1080501037	Robert Granetz	Shot 37 -- Fizzle. No idea why. Next shot: try again
May 1 2008 04:58:30:923PM	1080501038	Robert Granetz	Shot 38 -- Dud. OH2L crowbarred well before commutation. End of run.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:39:08:480AM	Test	Ok	Cycle test
2	09:01:28:400AM	Test	Bad	EF4 forward Bridge 1KV 2Ka
3	09:14:00:753AM	Test	Ok	EF4 Forward Bridge 1KV 2KA
4	09:29:56:143AM	Plasma	Bad	Engineer faied to load Supply setup
5	09:44:46:623AM	Plasma	Ok
6	09:57:14:430AM	Plasma	Ok
7	10:09:49:767AM	Plasma	Ok
8	10:22:23:417AM	Plasma	Ok
9	10:34:55:253AM	Plasma	Ok
10	10:47:37:547AM	Plasma	Ok
11	11:00:12:650AM	Plasma	Ok
12	11:12:45:600AM	Plasma	Ok
13	11:25:42:230AM	Plasma	Ok
14	11:38:14:130AM	Plasma	Ok
15	11:50:49:593AM	Plasma	Ok
16	12:03:41:620PM	Plasma	Ok
17	12:18:01:223PM	Plasma	Ok
18	12:30:28:187PM	Plasma	Ok
19	12:42:54:100PM	Plasma	Ok
20	12:55:27:660PM	Plasma	Ok
21	01:08:02:403PM	Plasma	Ok
22	01:20:32:927PM	Plasma	Ok
23	01:33:15:280PM	Plasma	Ok
24	01:46:04:167PM	Plasma	Ok
25	01:59:13:893PM	Plasma	Ok
26	02:13:33:483PM	Plasma	Ok
27	02:26:55:980PM	Plasma	Ok
28	02:40:18:223PM	Plasma	Ok
29	02:52:49:903PM	Plasma	Ok
30	03:06:07:493PM	Plasma	Ok
31	03:18:38:987PM	Plasma	Ok
32	03:32:57:437PM	Plasma	Ok
33	03:48:12:150PM	Plasma	Ok
34	04:00:41:130PM	Plasma	Ok
35	04:14:07:857PM	Plasma	Ok
36	04:27:04:383PM	Plasma	Ok
37	04:39:33:830PM	Plasma	Ok
38	04:52:47:950PM	Plasma	Bad	OH Commutation fault