Alcator C-Mod Run 1090730 Information

Miniproposals

Miniproposal: 562

Date Filed: 7/30/2009

Title: Characterization of the decay time of the fast-ion tail

First Author: Aaron Bader

Session Leader: Aaron Bader (shots 1-30)

Operators
Session leader(s):	Aaron Bader
Physics operator(s):	Robert Granetz
Engineering operator(s):	Bill Parkin,Sam Pierson,Ed Fitzgerald

Engineering Operator Run Comment
Characterization of the decay time of the fast-ion tail

Session Leader Plans

Entered: Jul 29 2009 05:36:39:147PM

Author: Aaron Bader

1. Start with discharge (1090729030 LSN with nl04~0.5), we will begin
with CNPA calibration/settings with constant RF pulses. We need to stay
out of H-mode so the density may need adjustment. Run the 3 antennas
separate to start and will stack as necessary. A power scan will be
done to optimize signal.

2. Once conditions are identified, switch the RF to pulsed waveforms
similar to 1080408025. Obtain several shots at each plasma current.

3. If needed or if time permits, we will also switch to He.

Physics Operators Plans

Entered: Jul 30 2009 12:33:13:250AM

Author: Robert Granetz

Engineering setup for Thursday 2009/07/30 MP??? - Characterization of the decay time of the fast-ion tail Session leaders: A. Bader Physics operator: R. Granetz Standard overnight ECDC and 60 C bake Run will start at 09:00 and end at 17:00. Power systems as on 1090729030 (Bt=5.4T, Ip=1.0 MA, nl04=0.8e20 m-2) 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) leave NINJA as is DISABLED Enable the following gate valves and shutters, assuming no vacuum problems: ECE, Z-bolo Torvac setup: keep gate valves open during PULSE Specific diagnostics: CNPA ------------------------------------------------------------------------------ ICRF Setup: all systems in run-on by 08:30 LH Setup: no DNB: no Cryopump: no ------------------------------------------------------------------------------ Run plan: Start with 1090729030, but lower the density to nl_04 ~ 0.5e20 m-2 to try and stay out of H-mode. The run will likely include a number of cell accesses for the CNPA. See the session leader's run plan for more details.

Session Leader Summaries

Entered: Jul 30 2009 05:38:43:927PM

Author: Aaron Bader

Very good run, with excellent work from the RF team and the physop.

Shots 1-5: calibrated the CNPA aperture to the ICRF signal, eventually settled on an aperture setting of 202 and an ICRF signal of 1.25 MW from J.

Shots 6-23: Run Pulsed ICRF starting at 30 ms pulses and eventually switching to 40 ms pulses. Calculated the fast-ion decay vs current and found a negligible current dependence. Fast-ion decay fairly rock solid at tau = 0.011 - 0.013 s for all 3 channels. Rise time looks to be on a very similar time scale.

Shots 24-30: Ran helium plasmas, only got a couple shots in, had some problems with D contamination. Again did not see a difference between decay time in helium to decay time in Deuterium. However, we did see a strong dependence on density, based on the one shot we had at a higher density.

Channel 3 started to receive much lower signals than channels 1 or 2 during some of the helium shots, although the decay time constants look to be the same. This was not the case in Deuterium, and I do not understand this behavior.

Physics Operator Summaries

Entered: Jul 31 2009 12:32:33:110AM

Author: Robert Granetz

Run summary for Thursday 2009/07/30 MP562 - Characterization of the decay time of the fast ion tail Session leaders: A. Bader Physics operator: R. Granetz The goal for today was to gather data with the 3 CNPA detectors at F-port at various plasma currents, densities, and species (D and He) with modulated RF to study the decal time of the fast ion tail. The run was very successful in achieving the goal because both the machine and the RF worked well. We ran currents of 1.0, 0.8, and 0.6 MA in deuterium, and 1.0 and 0.8 MA in helium. We stayed mostly at low density (nl_04=0.5e20 m-2) in order to stay out of H-mode. Most of the shots used J-port only, with an on/off modulation period of 30 ms/30 ms initially, eventually changing to 40 ms/40 ms. The helium changeover took a few shots to unload the walls of deuterium. The only problem of note today was a mysterious PLC issue in the alternator house that caused a problem with several shot cycles early in the afternoon, but which eventually was resolved. Scorecard: 25 plasmas 0 duds 2 fizzles 0 power supply tests 3 no-power MDS shot cycles -------------- Total: 30 shot cycles

Session Leader Comments

Jul 30 2009 09:20:44:167AM 1090730001 Aaron Bader Shot good. Density is a little high, but should come down.

CNPA signal noise level looks good, but not as many pulses as desired, need to open the aperture. Set aperture to 202. Oddly, no signal when J is on, unclear why, but we've seen this before.

Next shot:
Lower J-port RF to 1 MW total, and move D and E a bit earlier.

Jul 30 2009 09:32:39:897AM 1090730002 Aaron Bader Shot good, RF looks very nice.

CNPA signal is good, but count levels are still too low, see if we can get density down a bit, if not, we'll have to open the aperture even more.

Next shot: Same from RF, try lowering the density a little.

Jul 30 2009 09:44:52:350AM 1090730003 Aaron Bader Shot good, RF very nice again, density is a little lower

CNPA count rate is close to ideal. Noise still acceptable. Opened the aperture up to 200 trying to reach the 5000 count per second level

Next shot: Same from RF, keep density the same.

Jul 30 2009 09:54:05:200AM 1090730004 Aaron Bader Shot disrupted.

Noise level on CNPA is too high at the beginning of the pulse, we may need to close the aperture back to 202.

Next shot - try again, no changes.

Jul 30 2009 10:10:18:183AM 1090730005 Aaron Bader Good plasma and RF

CNPA noise is a little high, so are the soft x-rays.

Next shot: try running with modulated RF, J Antenna only.

Jul 30 2009 10:30:00:963AM 1090730006 Aaron Bader Good plasma, RF modulation looks good

Soft x-rays too high though, reduce the aperture back to 202

Next shot: same

Jul 30 2009 10:42:36:370AM 1090730007 Aaron Bader Good plasma, RF modulation looks very good

Aperture is set back to 202 but I think we have enough signal to be able to get the decay tail timing.

We will add a couple more RF pulses for the next shot. Also need to add some pre-puff to prevent the hard x-rays.

Same otherwise.

Jul 30 2009 11:03:21:413AM 1090730008 Aaron Bader Good shot.

Next shot: repeat

Jul 30 2009 11:14:44:737AM 1090730009 Aaron Bader Another good shot.

Next shot: second point in current scan. Change current to 0.8 MA

Jul 30 2009 11:30:12:717AM 1090730010 Aaron Bader Another good shot.

Change in decay time due to different currents not clear.

Next shot: repeat

Jul 30 2009 11:34:58:377AM 1090730011 Aaron Bader fizzle

Next shot: try again

Jul 30 2009 11:54:14:923AM 1090730012 Aaron Bader Good shot

Next shot: one more at this current

Jul 30 2009 12:04:31:120PM 1090730013 Aaron Bader Fizzle

Next shot: try again at this current

Jul 30 2009 12:21:16:663PM 1090730014 Aaron Bader Good shot

Next shot: move current to 0.6 MA

Jul 30 2009 12:44:53:620PM 1090730015 Aaron Bader Good shot

We're not sure that we're seeing the fast ion signal level off during the 30 ms RF pulse. so

Next shot: increase the width of the RF pulse to 40 ms on and 40 ms off

Jul 30 2009 01:21:59:553PM 1090730016 Aaron Bader Good shot

With the extended RF pulse we clearly hit the flattop on the fast-ion signal.

Next shot: Another shot like this

Jul 30 2009 01:22:40:117PM 1090730017 Aaron Bader Good shot

Next shot: Want to return and get data at 0.8 MA with RF at 40 ms on and 40 ms off. So next shot, raise current to 0.8 MA

Jul 30 2009 01:36:44:893PM 1090730018 Aaron Bader hmm, that didn't work so well. Shot cycle error.

Next shot: try again.

Jul 30 2009 02:02:17:067PM 1090730019 Aaron Bader no power shot.

next shot: hopefully a plasma shot at 0.8 MA

Jul 30 2009 02:34:00:140PM 1090730020 Aaron Bader no power shot again.

next shot: hopefully a plasma shot at 0.8 MA

Jul 30 2009 03:06:29:510PM 1090730021 Aaron Bader Plasma shot, looks good

Trigger on CNPA went off early for some unknown reason

next shot: retry

Jul 30 2009 03:18:52:713PM 1090730022 Aaron Bader Plasma shot, looks good

trigger seems to be correct. Looks like we had a bizarre false trigger.

Next shot: 1 MA

Jul 30 2009 03:52:10:660PM 1090730023 Aaron Bader Plasma shot, looks good

Next shot: helium

Jul 30 2009 03:52:36:940PM 1090730024 Aaron Bader Plasma shot, looks good

Problem with D contamination of the plasma

Next shot: raise density, try again.

Jul 30 2009 04:06:19:360PM 1090730025 Aaron Bader Plasma shot, disrupted, huge marfe.

Density too high for good CNPA data.

Next shot: try to get 0.8

Jul 30 2009 04:13:03:550PM 1090730026 Aaron Bader fizzle, shake tiny fist at Matt

next shot: try again.

Jul 30 2009 04:36:37:197PM 1090730027 Aaron Bader good shot. CNPA has data, have enough for a decay time measurement.

Decay time looks different, about twice as fast than in shot 23 in deuterium. Don't know if it's a helium effect or a density effect. Channel 3 has different signal level and different decay time. There has been no channel difference between

Next shot: try to lower the density

Jul 30 2009 04:46:12:060PM 1090730028 Aaron Bader good shot.

decay constants back up to deuterium levels

Next shot: try again.

Jul 30 2009 05:03:45:387PM 1090730029 Aaron Bader Good shot

Channel 3 low again

Next shot: lower current to 0.8 MA.

Physics Operator Comments

Jul 30 2009 08:55:30:740AM Robert Granetz
Shot 01 -- setup by loading 1090729030 and decreasing nl_04 to 0.5e20 m-2.

Jul 30 2009 09:18:25:617AM 1090730001 Robert Granetz

Shot 01 -- Plasma, full length. Lots of hard x-rays. nl_04 = 0.6e20 m-2. D, E, and J each gave about a megawatt, but J was tripped a few times. All three CNPA signals "look good" (according to Aaron). Quick cell access required by Aaron to change aperture. Next shot: repeat, no DPCS changes.

Jul 30 2009 09:31:14:587AM 1090730002 Robert Granetz

Shot 02 -- Plasma, full length. Very nice ICRF performance. J, E, & D each gave 1.0 MW, fault-free for 0.25 s each. So far they are not being overlapped in time. Plenty of hard x-rays. L/H dithering after t=1.15 s. Next shot: decrease nl_04 to 0.35e20 m-2

Jul 30 2009 09:45:09:303AM 1090730003 Robert Granetz

Shot 03 -- Plasma, full length. More beautiful RF performance. Huge hard x-ray signal. Density stayed lower on this shot. No L/H dithering. OH2L coax at 3.0 micro-ohms. Next shot: Move fizzle off time to 2.1 s (from 1.8), OH invert times to 2.3 s (from 2.0), and program I_TF flattop to extend to 2.0 s (was 1.5 s). Also increase pre-fill by 1 ms.

Jul 30 2009 10:01:39:300AM 1090730004 Robert Granetz

Shot 04 -- Plasma. Disrupted at t=0.82 s. Not due to an injection. Sawteeth disappear, so maybe this was due to a locked mode, even though the A-coil feedback is on. Maybe we need to run Steve Wolfe's error field MP soon. Huge hard x-ray signal. J-port ran fault free at 1.2 MW. Density stayed very low, which may be why this may have had a locked mode. Next shot: increase nl_04 to 0.4e20 m-2

Jul 30 2009 10:10:14:993AM 1090730005 Robert Granetz

Shot 05 -- Plasma, full length. Very good RF. Hard x-rays are nearly gone until late in the rampdown when the density gets very low. No L/H dithering, so this is a pretty good shot. Next shot: modulate J (30 ms on, 30 ms off); increase density late in the shot; increase pre-fill by 1 ms.

Jul 30 2009 10:27:42:913AM 1090730006 Robert Granetz

Shot 06 -- Plasma, full length. J-port ICRF is modulated at 30 ms on, 30 ms off. D & E were not run. Nice RF performance. Density is low (0.4e20 m-2) and very constant. Really huge hard x-ray signal...good thing it doesn't affect Aaron's CNPAs. Next shot: repeat, no changes except CNPA aperture is reduced

Jul 30 2009 10:43:36:307AM 1090730007 Robert Granetz

Shot 07 -- Plasma, full length. Good modulated J-port RF. Good steady, low density. Huge hard -xray signal. We have extended the RECOOL time to 12 minutes because of the extended TF pulse. Next shot: increase pre-fill by 2 ms

Jul 30 2009 10:54:33:533AM 1090730008 Robert Granetz

Shot 08 -- Plasma, full length. The J-port RF modulation is a thing of beauty. Good density. Plenty of hard x-rays. Good CNPA signals. Next shot: repeat this 1 MA shot one more time; add 1 ms to pre-fill

Jul 30 2009 11:09:34:123AM 1090730009 Robert Granetz

Shot 09 -- Plasma, full length. 1 MA. Good J-port modulated RF. Good density. Good CNPA signals. Bad hard x-rays. Oh well, you can't win them all. Next shot: Reduce Ip to 0.8 MA; increase pre-fill another 1 ms

Jul 30 2009 11:29:50:827AM 1090730010 Robert Granetz

Shot 10 -- Plasma, full length. Good modulated RF, good density, good CNPA. Bad hard x-rays, but less than most of the shots we've been having. We notice again that the RF modulation also has a modulation effect on the hard x-rays...how? Next shot: repeat; increase pre-fill by another 1 ms; turn on argon valve, and setup a 50 ms argon puff starting at t=1.3 s.

Jul 30 2009 11:39:48:007AM 1090730011 Robert Granetz

Shot 11 -- Fizzle. Next shot: reduce pre-fill by 1 ms

Jul 30 2009 11:59:58:460AM 1090730012 Robert Granetz

Shot 12 -- Plasma, full length. Good modulated J-port RF, good density, good CNPA signals. Hard x-rays are bad, but not as bad as they have been. Next shot: repeat, no changes

Jul 30 2009 12:08:57:653PM 1090730013 Robert Granetz

Shot 13 -- Fizzle. Next shot: reduce pre-fill another 1 ms

Jul 30 2009 12:25:08:667PM 1090730014 Robert Granetz

Shot 14 -- Plasma, full length. 0.8 MA. Good modulated J-port RF, good density, good CNPA. Better hard x-rays. Next shot: reduce Ip to 0.6 MA

Jul 30 2009 12:47:46:043PM 1090730015 Robert Granetz

Shot 15 -- Plasma, full length. 0.6 MA. Good modulated J-port RF, good density, good CNPA. Less hard x-rays. Next shot: no DPCS changes; J-port RF modulation will be changed to 40 ms on, 40 ms off

Jul 30 2009 01:16:03:470PM 1090730016 Robert Granetz

Shot 16 -- Plasma, full length. 0.6 MA. RF modulation is now 40 ms on, 40 ms off. Next shot: change BR_0 offset to +0.5 mT (from +1.0 mT)

Jul 30 2009 01:24:09:663PM 1090730017 Robert Granetz

Shot 17 -- Plasma, full length. 0.6 MA. Good modulated J-port RF, good density, good CNPA, and even low hard x-rays. Next shot: set Ip to 0.8 MA (with the 40/40 ms RF modulation)

Jul 30 2009 02:03:34:090PM 1090730018 Robert Granetz

Shot 18 -- ??? I think we had a shot cycle, but nothing happened. The alternator stopped everything for some reason. Next shot: no-power shot to check data cycle

Jul 30 2009 02:29:07:230PM 1090730019 Robert Granetz

Shot 19 -- No power shot to confirm that data cycle problems have been solved. Looks like there's still a problem with a PLC in the alternator house. Next shot: looks like we'll need another no-power test cycle

Jul 30 2009 02:59:14:440PM 1090730020 Robert Granetz

Shot 20 -- no-power test shot. NOT successful. Next shot: go for 0.8 MA plasma

Jul 30 2009 03:06:35:477PM 1090730021 Robert Granetz

Shot 21 -- Plasma, full length. 0.8 MA. Good modulated J-port RF, good density, good CNPA, good hard x-rays. Looks like the CNPA triggered about a half-second earlier than it should have. We'll have to redo this shot. Next shot: repeat with no changes

Jul 30 2009 03:15:04:227PM 1090730022 Robert Granetz

Shot 22 -- Plasma, full length. 0.8 MA. Good modulated J-port RF, good density, good CNPA, good hard x-rays. Next shot: set Ip to 1.0 MA (copy wire from shot 09)

Jul 30 2009 03:28:16:377PM 1090730023 Robert Granetz

Shot 23 -- Plasma, full length. 1.0 MA. Good modulated J-port RF, good density, good CNPA, good hard x-rays. Next shot: change to helium plasmas (breakdown in D2)

Jul 30 2009 03:56:07:727PM 1090730024 Robert Granetz

Shot 24 -- Plasma, full length. 1.0 MA. This was supposed to be a helium plasma, but only a small amount of helium was actually puffed because we're running as such a low density. Good modulated J-port RF, good CNPA, good hard x-ray signal. Next shot: increase nl_04 to 0.8e20 m-2 (from 0.4) in order to get more helium puffed in. Also decrease PG3 programming in seg 1 to reduce early marfe. Also increase B-side-lower N2 puff from 50 ms to 100 ms (starting at t=1.3 s)

Jul 30 2009 04:09:26:940PM 1090730025 Robert Granetz

Shot 25 -- Plasma. Disrupted at t=1.51 s. Huge marfe from t=0.36 to 0.8 s. Density is too high even after the marfe goes away. Neutron rate is greatly reduced, so maybe we're actually getting more of a helium plasma. Pretty good RF. Next shot: reduce nl_04 gain from 8.0 to 2.0. Reduce late N2 puff to 60 ms (from 100 ms).

Jul 30 2009 04:16:41:617PM 1090730026 Robert Granetz

Shot 26 -- Fizzle. Disruption recovery in helium? Next shot: try again, no changes

Jul 30 2009 04:30:29:300PM 1090730027 Robert Granetz

Shot 27 -- Plasma, full length. 1.0 MA. Looks like helium! Neutrons are down by an order of magnitude. Density is under control, at nl_04=0.8e20 m-2. Good modulated J-port RF, good hard x-rays, good CNPA. Next shot: decrease nl_04 to 0.5e20 m-2

Jul 30 2009 04:44:49:623PM 1090730028 Robert Granetz

Shot 28 -- Plasma, full length. Helium plasma, 1.0 MA, nl_04=0.5e20 m-2. Good modulated J-port RF, good CNPA. Hard x-rays have come back. Next shot: repeat, no changes

Jul 30 2009 05:00:26:883PM 1090730029 Robert Granetz

Shot 29 -- Plasma, full length. 1.0 MA, nl_04=0.5e20 m-2, helium. Huge hard x-ray signal. Good modulated J-port RF. Good CNPA. Next shot: set Ip to 0.8 MA

Jul 30 2009 05:07:57:437PM 1090730030 Robert Granetz

Shot 30 -- Plasma, full length. 0.8 MA, nl_04=0.5e20 m-2, helium. Good modulated J-port RF, good CNPA. Really huge hard x-ray signal. End of run. To be continued tomorrow...

Engineering Operator Comments

Shot Time Type Status Comment

1 09:09:48:423AM Plasma Ok

2 09:22:46:933AM Plasma Ok

3 09:35:30:410AM Plasma Ok

4 09:48:14:993AM Plasma Ok

5 10:04:00:663AM Plasma Ok

6 10:19:28:160AM Plasma Ok

7 10:33:52:040AM Plasma Ok

8 10:48:28:263AM Plasma Ok

9 11:02:55:040AM Plasma Ok

10 11:17:37:940AM Plasma Ok

11 11:32:38:593AM Plasma Ok

12 11:47:20:770AM Plasma Ok

13 12:02:10:693PM Plasma Ok

14 12:18:39:723PM Plasma Ok

15 12:33:22:267PM Plasma Ok

16 01:04:26:633PM Plasma Ok

17 01:19:12:723PM Plasma Ok

18 01:33:42:377PM Plasma Bad ACK failure form the alternator

19 02:03:11:170PM Test Bad No power, data system shotACK failure from the alternator once we entere

20 02:34:44:047PM Test Bad No power, data system shot ACK failure from the alt. entered recool

21 02:52:47:453PM Plasma Ok

22 03:07:24:633PM Plasma Ok

23 03:22:03:793PM Plasma Ok

24 03:43:17:280PM Plasma Ok

25 03:57:47:977PM Plasma Ok

26 04:10:42:017PM Plasma Ok

27 04:23:14:060PM Plasma Ok

28 04:35:56:037PM Plasma Ok

29 04:51:03:970PM Plasma Ok

30 05:03:39:670PM Plasma Ok

System Availability

Jul 30 2009 09:09:26:033AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID/LEDGE/DIV foils still need calibrations applied Jul 28 2009 09:59AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no Bottle Removed from the Cell, Piezo box on Igloo Removed. System in safe mode for In-Vessel Access May 30 2008 02:25PM (dekow) Jim Irby Boronization dekow,irby
CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor no Cyopump hardware is not yet reinstalled in the cell. Jul 14 2009 09:21PM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes system is aligned and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no safely disabled; ready to be dismantled May 28 2008 10:22AM (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 power locked & tagged out; gate valve disabled May 28 2008 10:03AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC no 6/10/09 Magnetron relocated to west wall in cell at H-port. All controls and hardware have been installed but need to be tested prior to full operation. Magnetron Unplugged and Red tagged, PEI breaker red tagged, Safe for In-Vessel Activity Jun 10 2009 02:35PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes The lower freq. 16 channels are ready. Still need calibration and signal level adjustments Jul 14 2009 12:15PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Problem with controller - signal noisy. Jul 14 2009 09:11PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar
HEAT no Disconnect switch is open, reg tagged and locked. Shunt Trip Breaker is opened. Safe for in-vessel work. Jun 04 2008 12:24PM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes available for conditioning and testing Jul 21 2009 04:50PM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data but processed data not in tree. WB1-LY not attached. Jul 07 2009 01:01PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Collecting spectra but control system problem is not reporting voltages to tree Jul 28 2009 10:00AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (labombard) Brian LaBombard Baratron pressure gauges labombard
MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes Operational --- Uncalibrated and needs to be positioned at port Jun 25 2009 05:08PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI no Both HeNe and CO2 lasers have been shutdown. System is safe. May 30 2008 01:58PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Operational ---- ECDC running as required Jun 19 2009 08:06AM (irby) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes As of 7/21/09, all channels are operational (50, 60, 75, 88, 88usb, 88lsb, 110, 140 and 110-140 swept frequency) Jul 21 2009 01:39PM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes Sparker now at K-Hor. Set for 100 uA of current. Will up to 200 uA before first plasma Jun 18 2009 01:01PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 lasers working. Several spatial channels operational, but ***uncalibrated*** Jul 23 2009 03:31PM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge no Expected availability: week of Aug 3 Jul 23 2009 03:32PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO yes cables attached, DAQ test run, ready for first plasma Jun 17 2009 03:42PM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Jul 30 2009 09:20:44:167AM	1090730001	Aaron Bader	Shot good. Density is a little high, but should come down. CNPA signal noise level looks good, but not as many pulses as desired, need to open the aperture. Set aperture to 202. Oddly, no signal when J is on, unclear why, but we've seen this before. Next shot: Lower J-port RF to 1 MW total, and move D and E a bit earlier.
Jul 30 2009 09:32:39:897AM	1090730002	Aaron Bader	Shot good, RF looks very nice. CNPA signal is good, but count levels are still too low, see if we can get density down a bit, if not, we'll have to open the aperture even more. Next shot: Same from RF, try lowering the density a little.
Jul 30 2009 09:44:52:350AM	1090730003	Aaron Bader	Shot good, RF very nice again, density is a little lower CNPA count rate is close to ideal. Noise still acceptable. Opened the aperture up to 200 trying to reach the 5000 count per second level Next shot: Same from RF, keep density the same.
Jul 30 2009 09:54:05:200AM	1090730004	Aaron Bader	Shot disrupted. Noise level on CNPA is too high at the beginning of the pulse, we may need to close the aperture back to 202. Next shot - try again, no changes.
Jul 30 2009 10:10:18:183AM	1090730005	Aaron Bader	Good plasma and RF CNPA noise is a little high, so are the soft x-rays. Next shot: try running with modulated RF, J Antenna only.
Jul 30 2009 10:30:00:963AM	1090730006	Aaron Bader	Good plasma, RF modulation looks good Soft x-rays too high though, reduce the aperture back to 202 Next shot: same
Jul 30 2009 10:42:36:370AM	1090730007	Aaron Bader	Good plasma, RF modulation looks very good Aperture is set back to 202 but I think we have enough signal to be able to get the decay tail timing. We will add a couple more RF pulses for the next shot. Also need to add some pre-puff to prevent the hard x-rays. Same otherwise.
Jul 30 2009 11:03:21:413AM	1090730008	Aaron Bader	Good shot. Next shot: repeat
Jul 30 2009 11:14:44:737AM	1090730009	Aaron Bader	Another good shot. Next shot: second point in current scan. Change current to 0.8 MA
Jul 30 2009 11:30:12:717AM	1090730010	Aaron Bader	Another good shot. Change in decay time due to different currents not clear. Next shot: repeat
Jul 30 2009 11:34:58:377AM	1090730011	Aaron Bader	fizzle Next shot: try again
Jul 30 2009 11:54:14:923AM	1090730012	Aaron Bader	Good shot Next shot: one more at this current
Jul 30 2009 12:04:31:120PM	1090730013	Aaron Bader	Fizzle Next shot: try again at this current
Jul 30 2009 12:21:16:663PM	1090730014	Aaron Bader	Good shot Next shot: move current to 0.6 MA
Jul 30 2009 12:44:53:620PM	1090730015	Aaron Bader	Good shot We're not sure that we're seeing the fast ion signal level off during the 30 ms RF pulse. so Next shot: increase the width of the RF pulse to 40 ms on and 40 ms off
Jul 30 2009 01:21:59:553PM	1090730016	Aaron Bader	Good shot With the extended RF pulse we clearly hit the flattop on the fast-ion signal. Next shot: Another shot like this
Jul 30 2009 01:22:40:117PM	1090730017	Aaron Bader	Good shot Next shot: Want to return and get data at 0.8 MA with RF at 40 ms on and 40 ms off. So next shot, raise current to 0.8 MA
Jul 30 2009 01:36:44:893PM	1090730018	Aaron Bader	hmm, that didn't work so well. Shot cycle error. Next shot: try again.
Jul 30 2009 02:02:17:067PM	1090730019	Aaron Bader	no power shot. next shot: hopefully a plasma shot at 0.8 MA
Jul 30 2009 02:34:00:140PM	1090730020	Aaron Bader	no power shot again. next shot: hopefully a plasma shot at 0.8 MA
Jul 30 2009 03:06:29:510PM	1090730021	Aaron Bader	Plasma shot, looks good Trigger on CNPA went off early for some unknown reason next shot: retry
Jul 30 2009 03:18:52:713PM	1090730022	Aaron Bader	Plasma shot, looks good trigger seems to be correct. Looks like we had a bizarre false trigger. Next shot: 1 MA
Jul 30 2009 03:52:10:660PM	1090730023	Aaron Bader	Plasma shot, looks good Next shot: helium
Jul 30 2009 03:52:36:940PM	1090730024	Aaron Bader	Plasma shot, looks good Problem with D contamination of the plasma Next shot: raise density, try again.
Jul 30 2009 04:06:19:360PM	1090730025	Aaron Bader	Plasma shot, disrupted, huge marfe. Density too high for good CNPA data. Next shot: try to get 0.8
Jul 30 2009 04:13:03:550PM	1090730026	Aaron Bader	fizzle, shake tiny fist at Matt next shot: try again.
Jul 30 2009 04:36:37:197PM	1090730027	Aaron Bader	good shot. CNPA has data, have enough for a decay time measurement. Decay time looks different, about twice as fast than in shot 23 in deuterium. Don't know if it's a helium effect or a density effect. Channel 3 has different signal level and different decay time. There has been no channel difference between Next shot: try to lower the density
Jul 30 2009 04:46:12:060PM	1090730028	Aaron Bader	good shot. decay constants back up to deuterium levels Next shot: try again.
Jul 30 2009 05:03:45:387PM	1090730029	Aaron Bader	Good shot Channel 3 low again Next shot: lower current to 0.8 MA.

Physics Operator Comments
Jul 30 2009 08:55:30:740AM		Robert Granetz	Shot 01 -- setup by loading 1090729030 and decreasing nl_04 to 0.5e20 m-2.
Jul 30 2009 09:18:25:617AM	1090730001	Robert Granetz	Shot 01 -- Plasma, full length. Lots of hard x-rays. nl_04 = 0.6e20 m-2. D, E, and J each gave about a megawatt, but J was tripped a few times. All three CNPA signals "look good" (according to Aaron). Quick cell access required by Aaron to change aperture. Next shot: repeat, no DPCS changes.
Jul 30 2009 09:31:14:587AM	1090730002	Robert Granetz	Shot 02 -- Plasma, full length. Very nice ICRF performance. J, E, & D each gave 1.0 MW, fault-free for 0.25 s each. So far they are not being overlapped in time. Plenty of hard x-rays. L/H dithering after t=1.15 s. Next shot: decrease nl_04 to 0.35e20 m-2
Jul 30 2009 09:45:09:303AM	1090730003	Robert Granetz	Shot 03 -- Plasma, full length. More beautiful RF performance. Huge hard x-ray signal. Density stayed lower on this shot. No L/H dithering. OH2L coax at 3.0 micro-ohms. Next shot: Move fizzle off time to 2.1 s (from 1.8), OH invert times to 2.3 s (from 2.0), and program I_TF flattop to extend to 2.0 s (was 1.5 s). Also increase pre-fill by 1 ms.
Jul 30 2009 10:01:39:300AM	1090730004	Robert Granetz	Shot 04 -- Plasma. Disrupted at t=0.82 s. Not due to an injection. Sawteeth disappear, so maybe this was due to a locked mode, even though the A-coil feedback is on. Maybe we need to run Steve Wolfe's error field MP soon. Huge hard x-ray signal. J-port ran fault free at 1.2 MW. Density stayed very low, which may be why this may have had a locked mode. Next shot: increase nl_04 to 0.4e20 m-2
Jul 30 2009 10:10:14:993AM	1090730005	Robert Granetz	Shot 05 -- Plasma, full length. Very good RF. Hard x-rays are nearly gone until late in the rampdown when the density gets very low. No L/H dithering, so this is a pretty good shot. Next shot: modulate J (30 ms on, 30 ms off); increase density late in the shot; increase pre-fill by 1 ms.
Jul 30 2009 10:27:42:913AM	1090730006	Robert Granetz	Shot 06 -- Plasma, full length. J-port ICRF is modulated at 30 ms on, 30 ms off. D & E were not run. Nice RF performance. Density is low (0.4e20 m-2) and very constant. Really huge hard x-ray signal...good thing it doesn't affect Aaron's CNPAs. Next shot: repeat, no changes except CNPA aperture is reduced
Jul 30 2009 10:43:36:307AM	1090730007	Robert Granetz	Shot 07 -- Plasma, full length. Good modulated J-port RF. Good steady, low density. Huge hard -xray signal. We have extended the RECOOL time to 12 minutes because of the extended TF pulse. Next shot: increase pre-fill by 2 ms
Jul 30 2009 10:54:33:533AM	1090730008	Robert Granetz	Shot 08 -- Plasma, full length. The J-port RF modulation is a thing of beauty. Good density. Plenty of hard x-rays. Good CNPA signals. Next shot: repeat this 1 MA shot one more time; add 1 ms to pre-fill
Jul 30 2009 11:09:34:123AM	1090730009	Robert Granetz	Shot 09 -- Plasma, full length. 1 MA. Good J-port modulated RF. Good density. Good CNPA signals. Bad hard x-rays. Oh well, you can't win them all. Next shot: Reduce Ip to 0.8 MA; increase pre-fill another 1 ms
Jul 30 2009 11:29:50:827AM	1090730010	Robert Granetz	Shot 10 -- Plasma, full length. Good modulated RF, good density, good CNPA. Bad hard x-rays, but less than most of the shots we've been having. We notice again that the RF modulation also has a modulation effect on the hard x-rays...how? Next shot: repeat; increase pre-fill by another 1 ms; turn on argon valve, and setup a 50 ms argon puff starting at t=1.3 s.
Jul 30 2009 11:39:48:007AM	1090730011	Robert Granetz	Shot 11 -- Fizzle. Next shot: reduce pre-fill by 1 ms
Jul 30 2009 11:59:58:460AM	1090730012	Robert Granetz	Shot 12 -- Plasma, full length. Good modulated J-port RF, good density, good CNPA signals. Hard x-rays are bad, but not as bad as they have been. Next shot: repeat, no changes
Jul 30 2009 12:08:57:653PM	1090730013	Robert Granetz	Shot 13 -- Fizzle. Next shot: reduce pre-fill another 1 ms
Jul 30 2009 12:25:08:667PM	1090730014	Robert Granetz	Shot 14 -- Plasma, full length. 0.8 MA. Good modulated J-port RF, good density, good CNPA. Better hard x-rays. Next shot: reduce Ip to 0.6 MA
Jul 30 2009 12:47:46:043PM	1090730015	Robert Granetz	Shot 15 -- Plasma, full length. 0.6 MA. Good modulated J-port RF, good density, good CNPA. Less hard x-rays. Next shot: no DPCS changes; J-port RF modulation will be changed to 40 ms on, 40 ms off
Jul 30 2009 01:16:03:470PM	1090730016	Robert Granetz	Shot 16 -- Plasma, full length. 0.6 MA. RF modulation is now 40 ms on, 40 ms off. Next shot: change BR_0 offset to +0.5 mT (from +1.0 mT)
Jul 30 2009 01:24:09:663PM	1090730017	Robert Granetz	Shot 17 -- Plasma, full length. 0.6 MA. Good modulated J-port RF, good density, good CNPA, and even low hard x-rays. Next shot: set Ip to 0.8 MA (with the 40/40 ms RF modulation)
Jul 30 2009 02:03:34:090PM	1090730018	Robert Granetz	Shot 18 -- ??? I think we had a shot cycle, but nothing happened. The alternator stopped everything for some reason. Next shot: no-power shot to check data cycle
Jul 30 2009 02:29:07:230PM	1090730019	Robert Granetz	Shot 19 -- No power shot to confirm that data cycle problems have been solved. Looks like there's still a problem with a PLC in the alternator house. Next shot: looks like we'll need another no-power test cycle
Jul 30 2009 02:59:14:440PM	1090730020	Robert Granetz	Shot 20 -- no-power test shot. NOT successful. Next shot: go for 0.8 MA plasma
Jul 30 2009 03:06:35:477PM	1090730021	Robert Granetz	Shot 21 -- Plasma, full length. 0.8 MA. Good modulated J-port RF, good density, good CNPA, good hard x-rays. Looks like the CNPA triggered about a half-second earlier than it should have. We'll have to redo this shot. Next shot: repeat with no changes
Jul 30 2009 03:15:04:227PM	1090730022	Robert Granetz	Shot 22 -- Plasma, full length. 0.8 MA. Good modulated J-port RF, good density, good CNPA, good hard x-rays. Next shot: set Ip to 1.0 MA (copy wire from shot 09)
Jul 30 2009 03:28:16:377PM	1090730023	Robert Granetz	Shot 23 -- Plasma, full length. 1.0 MA. Good modulated J-port RF, good density, good CNPA, good hard x-rays. Next shot: change to helium plasmas (breakdown in D2)
Jul 30 2009 03:56:07:727PM	1090730024	Robert Granetz	Shot 24 -- Plasma, full length. 1.0 MA. This was supposed to be a helium plasma, but only a small amount of helium was actually puffed because we're running as such a low density. Good modulated J-port RF, good CNPA, good hard x-ray signal. Next shot: increase nl_04 to 0.8e20 m-2 (from 0.4) in order to get more helium puffed in. Also decrease PG3 programming in seg 1 to reduce early marfe. Also increase B-side-lower N2 puff from 50 ms to 100 ms (starting at t=1.3 s)
Jul 30 2009 04:09:26:940PM	1090730025	Robert Granetz	Shot 25 -- Plasma. Disrupted at t=1.51 s. Huge marfe from t=0.36 to 0.8 s. Density is too high even after the marfe goes away. Neutron rate is greatly reduced, so maybe we're actually getting more of a helium plasma. Pretty good RF. Next shot: reduce nl_04 gain from 8.0 to 2.0. Reduce late N2 puff to 60 ms (from 100 ms).
Jul 30 2009 04:16:41:617PM	1090730026	Robert Granetz	Shot 26 -- Fizzle. Disruption recovery in helium? Next shot: try again, no changes
Jul 30 2009 04:30:29:300PM	1090730027	Robert Granetz	Shot 27 -- Plasma, full length. 1.0 MA. Looks like helium! Neutrons are down by an order of magnitude. Density is under control, at nl_04=0.8e20 m-2. Good modulated J-port RF, good hard x-rays, good CNPA. Next shot: decrease nl_04 to 0.5e20 m-2
Jul 30 2009 04:44:49:623PM	1090730028	Robert Granetz	Shot 28 -- Plasma, full length. Helium plasma, 1.0 MA, nl_04=0.5e20 m-2. Good modulated J-port RF, good CNPA. Hard x-rays have come back. Next shot: repeat, no changes
Jul 30 2009 05:00:26:883PM	1090730029	Robert Granetz	Shot 29 -- Plasma, full length. 1.0 MA, nl_04=0.5e20 m-2, helium. Huge hard x-ray signal. Good modulated J-port RF. Good CNPA. Next shot: set Ip to 0.8 MA
Jul 30 2009 05:07:57:437PM	1090730030	Robert Granetz	Shot 30 -- Plasma, full length. 0.8 MA, nl_04=0.5e20 m-2, helium. Good modulated J-port RF, good CNPA. Really huge hard x-ray signal. End of run. To be continued tomorrow...

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:09:48:423AM	Plasma	Ok
2	09:22:46:933AM	Plasma	Ok
3	09:35:30:410AM	Plasma	Ok
4	09:48:14:993AM	Plasma	Ok
5	10:04:00:663AM	Plasma	Ok
6	10:19:28:160AM	Plasma	Ok
7	10:33:52:040AM	Plasma	Ok
8	10:48:28:263AM	Plasma	Ok
9	11:02:55:040AM	Plasma	Ok
10	11:17:37:940AM	Plasma	Ok
11	11:32:38:593AM	Plasma	Ok
12	11:47:20:770AM	Plasma	Ok
13	12:02:10:693PM	Plasma	Ok
14	12:18:39:723PM	Plasma	Ok
15	12:33:22:267PM	Plasma	Ok
16	01:04:26:633PM	Plasma	Ok
17	01:19:12:723PM	Plasma	Ok
18	01:33:42:377PM	Plasma	Bad	ACK failure form the alternator
19	02:03:11:170PM	Test	Bad	No power, data system shotACK failure from the alternator once we entere
20	02:34:44:047PM	Test	Bad	No power, data system shot ACK failure from the alt. entered recool
21	02:52:47:453PM	Plasma	Ok
22	03:07:24:633PM	Plasma	Ok
23	03:22:03:793PM	Plasma	Ok
24	03:43:17:280PM	Plasma	Ok
25	03:57:47:977PM	Plasma	Ok
26	04:10:42:017PM	Plasma	Ok
27	04:23:14:060PM	Plasma	Ok
28	04:35:56:037PM	Plasma	Ok
29	04:51:03:970PM	Plasma	Ok
30	05:03:39:670PM	Plasma	Ok