Alcator C-Mod Run 1080425 Information

Miniproposals

Miniproposal: 497

Date Filed: 7/6/2007

Title: Exploratory Experiments on the Synergy between the MC IBW and LH Current Drive

First Author: Yijun Lin

Session Leader: Yijun Lin (shots 1-26)

Operators
Session leader(s):	Yijun Lin
Physics operator(s):	Jim Irby
Engineering operator(s):	Andy Pfeiffer,Ed Fitzgerald

Engineering Operator Run Comment
MP497: MCEH/MCCD and LHCD SL: Y. Lin PO: J. Irby

Session Leader Plans

Entered: Apr 24 2008 03:07:05:643PM

Author: Yijun Lin

SL_Plan for 1080425
MP497: MCEH/MCCD and LHCD
SL: Y. Lin
PO: J. Irby

ICRF: transmitters 3 and 4 run on by 8:30. Transmitters 1 and 2 stand-by.

LH: 500 kW required. 90 degree and 60 degree phases.

Special gas: Helium-3, B-upper, 15 PSI

Starting shot: 1080422014 (or choose a shot from 1080424), Ip = 800 kA. nl04 = 0.5e20. Raise Bt to 6.0 T (the MP called for 6.9 T, but concerns over the TF ruled it out). He3 puff starts at 0.2 sec, and last for 150 ms.

Plan:

Step 1 (3 shots): check out the mode conversion scenario. Run J antenna 2 MW, 0.7 to 1.2 sec. Co-CD, heat, and CTR-CD phases in the same shot. Try out different He3 puff durations (150ms, 100 ms, and 200 ms)

Step 2 (1 shot): LH base-line shot. LH 500 kW, 90 degree phase. 0.7 to 1.2 sec.

Step 3 (3 shots): ICRF first, LH second. LH 500 kW, 90 degree, 0.9 to 1.4 sec. J antenna 2 MW, 0.7 to 1.0 sec. Scan J antenna phases.

Step 4 (3 shots): LH first, ICRF second. LH 500 kW, 90 degree, 0.7 to 1.0 sec. J antenna 2 MW, 0.9 to 1.4 sec. Scan J antenna phases.

Step 5 (3 shots): choose a shot that shows some sign of synergy, ramp B field from 6.2 to 5.6 T from 0.7 to 1.4 sec. a shot with LH + ICRF, a shot with LH-only, and a shot with ICRF-only.

Depending on the result, I may need to run more shots at different LH and/or ICRF power levels.

If time allows configure LH to 60 degree phase, then repeat step 2, 3, and 4.

If time allows, retract the LH launcher, and run 3-4 plasmas for 1080422 (MP549):

1. Reload shot 1080422026 (5.1 T, USN). 150 ms Helium puff. D and E 0.6 to 1.5 sec, and J from 0.8 to 1.5 sec.

2. Run 5.4 T, same helium, Same ICRF power.

3. Run 5.1 Tesla, helium 50 ms puff. Same ICRF power.

Physics Operators Plans

Entered: Apr 25 2008 08:23:49:653AM

Author: Jim Irby

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

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

Power systems as on: 1080424027

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

Gas setup:

Fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1)
leave B-side upper 15 psi Helium-3 Hybrid enabled (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
fill NINJA with 10 psi D2 DISABLED

Enable gatevalves and shutters: ECE, VUV, Z-bolo, (no DNB to start)

Torvac gatevalve toggle (yes/no):

Boronization(yes/no): no
Overnight ECDC (yes/no): yes
ICRF(yes/no): yes
LH(yes/no): yes at 60 and 90 degree phasing
DNB(yes/no): no to start, maybe later
Cryopump (yes/no): no to start, maybe later

Vessel temperature: 35/35/35

------------------------------
ECDC Parameters (if requested)
------------------------------
gas and pressure: D2 at 2e-4 Torr
sweep: 70/71/103 cm
scan: 20/120 s

The primary mission is to get the machine running properly again. We will not allow argon, dnb, ninja, cryopump, etc until we have reliable plasmas.

We will start with a large outer gap and move out shot-to-shot in a similar manner to Steve's attemps yesterday. We will try to get ICRF going from the 1st shot at low power though it will probably have trouble with the large gaps.

Session Leader Summaries

Entered: Apr 28 2008 09:27:46:127AM

Author: Yijun Lin

SL summary:

Because of the problem in-vessel (see PO summary), I started the run with plan B, i.e. following run 1080422 and to check out the RF caused rotation. On shot 1080422015, 26, 29, 30, significant rotation was observed when the RF was applied (see SL summary on 1080422). It was unclear whether this was due to mode conversion heating/CD from J antenna.

In this run, we ran the same plasma while varying B field, helium-3 puff duration, and different RF waveforms.

Summary

1). The rotation can speed up by more than 34 km/sec with 3 MW from J port-only in counter-CD phase (shot 17), with only 10 kJ change in stored energy. (50 km/sec change with 14 kJ change in shot 25 in H-mode).

2). Strongest with counter-CD phasing (shot 2, 3, 4, 5)

3). Central heating from D/E-only did not create strong rotation (following the usual delta_W/Ip scaling) (shot 17, 16)

4). 150 ms Helium puff (about 15% he3 for mode conversion) is best (shot 9, 10, 12, 13, 17, 23). At 200 ms helium puff, the rotation is reduced to the normal scaling (shot 23).

5). not significantly different at 5.1 T (slightly off-axis, shot 4) and 5.3 T (nearly on-axis, shot 9), except delta_W is higher at 5.3 T. No effect when the MC layer is moved far off-axis (B = 4.8 T, shot 24). In shot 25 and 26 with B ramp-down, the response vs. B was broad (difficult to interpret since the velocity lagged for 100 ms). The largest velocity change was obtained in shot 25, at 5.17 Tesla, DV = 51 km/sec, DW = 10 kJ, J 2 MW, ctr-CD phase, and also in H-mode.

6) the rotation profile seems to be flat. Not significantly different than the normal rotation. No significant poloidal rotation either.

I did not run the SL_plan laid out for MP 497 because of the difficulty in creating small outer gap plasms in order for the LH to couple. All the successful shots today had outer gap more than 2.5 cm.

Physics Operator Summaries

Entered: Apr 26 2008 10:50:15:600PM

Author: Jim Irby

Though we still have an object, probably near a-hor, protruding into
the plasma, we were able to produce full-length plasmas today and
generate some very good physics results. It was necessary to operate
with outer gaps in the 2.5 cm range to keep the radiation down and
avoid disruptions. We operated most of the day with an inner wall
limited plasma and a large outer gap. However, on shot 20 we switched
to a SNL discharge, and over three shots, adjusted RCUR to produce a
2.1 to 2.3 cm gap that was relatively flat throughout the discharge.
This configuration also worked well with low levels of radiation
mostly coming from moly.

RF powers up to 5 MW were coupled to the plasma today. When the outer
gap was too small disruptions were clearly correlated with steps to
high power.

Problems
--------

shot 01 --- oh2_u did not commutate

shot 06 --- PLC status report error --- no power shot

shot 18 --- extreme physop error: seg 2 loaded into seg 1? 01:20 hours lost

shot 24 --- lost nl_04 feedback, plasma arm position control lost

Session Leader Comments

Apr 25 2008 09:11:50:580AM 1080425001 Yijun Lin Because of the difficulties getting good plasmas yesterday, I plan to run several shots like those on 1050422 first (5.1 T), with ICRF mode conversion only. This will be easier than 6 T plasmas. (LH launcher is all the way back before we can get reliable plasma).

Plasma parameter: use shot 1080424027,with inner wall limited and large outer gap. Helium-3 puff from 0.2 sec for 150 ms. J 1.6 MW from 0.8 to 1.5 sec. D+E 1.6 MW from 0.6 to 1.5 sec.

Result: fizzle.
Next: repeat.

Apr 25 2008 09:44:09:817AM 1080425002 Yijun Lin Plasma, disrupted. J antenna heating phase. 5,1 T, 150 ms He3 puff.
No hirex-sr data. Maybe useful data on sawtooth.
Next: J Co-CD phase.

Apr 25 2008 10:03:08:123AM 1080425003 Yijun Lin shot 3:
Plasma. J antenna CO-CD phase. 5,1 T, 150 ms He3 puff.
Core rotation velocity changed from -17 km/sec to +10 km/sec when J is on.
(This change is more than DWplasma/Ip scaling)

Next shot: J ctr-CD phase

Apr 25 2008 10:17:22:120AM 1080425004 Yijun Lin shot 4:
Plasma. J antenna Ctr-CD phase. 5.1 T, 150 ms He3 puff.
Good. Core rotation velocity changed from -19 km/sec to +14 km/sec when J is on
Also Mo temperature jumped with J.
Sawtooth definitely shorter than shot 3.

Next: J heating phase. Same power level. Add Ar for rotation measurement.

Apr 25 2008 10:32:16:303AM 1080425005 Yijun Lin shot 5: J heating phase. 5.1 T, 150 ms He3 puff.
PO programed Argon, but no argon puffed.
Good. Core rotation velocity changed from -13 km/sec to +12 km/sec when J is on.Sawtooth periods are somewhat in-between 3 and 4.
next: run J earlier than D and E.

Apr 25 2008 10:45:40:360AM 1080425006 Yijun Lin no power shot.

Apr 25 2008 11:29:41:020AM 1080425007 Yijun Lin shot 7: Run J earlier than D+E. 5.1 T, 150 ms He3 puff. With Argon.
J heating phase.
Plasma. Ramp-down.
Core rotation velocity changed from -12 km/sec to +20 km/sec when D+E is on.
(stored energy changed by 20 kJ)

Compared to shot 1080422025, 026, we found Ctr-CD J antenna drives the most rotation.

Next: 5.3 T. Run J, then D.

Apr 25 2008 11:18:26:790AM 1080425008 Yijun Lin early disruption.

Apr 25 2008 11:51:16:253AM 1080425009 Yijun Lin shot 9: 5.3 Tesla. 150 ms Helium-3, J ctr-CD phase. (to compare with shot 4)
Plasma.
Velocity from -19 to 13 km/sec. Barely Wmhd change. Similar to shot 4.
(so the effect is there with on-axis MC also).

next: 50 ms Helium. Minority heating case, and check if this is really MC effect.

Apr 25 2008 12:04:45:450PM 1080425010 Yijun Lin shot 10: 5.3 Tesla. 50 ms Helium-3, J ctr-CD phase. (to compare with shot 9)
Velocity changed 34 km/sec with no stored energy change.
So, this may not be related to MC at all.

Next: run J at heating phase.

Apr 25 2008 12:17:19:227PM 1080425011 Yijun Lin shot 11: 5.3 Tesla. 50 ms Helium-3, J heating phase (cf. shot 10)
Velocity changed 34 km/sec. Delta W 10 kJ.
(So part of the change is related to delta W).

next: step up J power, 1, 2, and 3 MW. Ctr-CD phase.

Apr 25 2008 12:33:34:020PM 1080425012 Yijun Lin shot 12: 5.3 Tesla. 50 ms Helium-3, J ctr-CD phase, Step J power (1, 2, 3 MW). (cf. shot 10)

The velocity change seems only at the first step (1 MW). very little change at higher power. (Is the velocity saturated?)

Next: 150 ms Helium and check out whether it is better.

Apr 25 2008 12:43:40:747PM 1080425013 Yijun Lin shot 13: 5.3 Tesla. 150 ms Helium-3, J ctr-CD phase, Step J power (1, 2, 3 MW).
Velocity changed 37 km/sec. Delta W 6 kJ.
(this is better than shot 12. MC seems to drive more rotation than
presumably minority heating).

Next: J heating phase.

Apr 25 2008 12:50:27:080PM 1080425014 Yijun Lin early disruption.

Next: stack up D and E, compared with stack-up J.

Apr 25 2008 01:05:18:217PM 1080425015 Yijun Lin shot 15: 5.3 Tesla. 150 ms Helium-3.
D/E 1.8 to 2.8 MW, steps
J 1.8 to 2.8 MW, steps, ctr-CD phase.
result: disrupted at .77 sec. too early.

next: repeat.

Apr 25 2008 01:19:14:743PM 1080425016 Yijun Lin shot 16: 5.3 Tesla. 150 ms Helium-3.
D/E 1.8 to 2.8 MW, steps
J 1.8 to 2.8 MW, steps, ctr-CD phase.

result: disrupted at .77 sec. too early. (Maybe it cannot take too much power from D+E).
next: Run J earlier than D+E.

Apr 25 2008 01:54:31:940PM 1080425017 Yijun Lin shot 17: 5.3 Tesla. 150 ms Helium-3.
J 1.8 to 2.8 MW, steps, ctr-CD phase.
D/E 1.8 to 2.8 MW, steps
AND YES, the rotation rose significantly when J was on. (32 km/sec. 10 kJ deltaW)
The rotation did not change much when D/E was on (20 km/sec, 20 kJ delta W)
(the rotation profile is rather flat)

Next: ohmic shot. Jim is changing plasma shape and see what kind of plasma we can still run with the problem inside the vessel.

Apr 25 2008 02:54:58:240PM 1080425018 Yijun Lin try ohmic plasma.
no plasma.
DPCS problem.

Cell entry to move LH launcher in and expect to run the first part of the MP later today.

Apr 25 2008 03:25:29:917PM 1080425019 Yijun Lin DPCS test. no plasma.

Apr 25 2008 03:48:30:123PM 1080425020 Yijun Lin ohmic shot. disrupted.
(No TS data. VNC terminal for laser control vanished. i don't have the password to start it).

Apr 25 2008 04:11:29:530PM 1080425022 Yijun Lin shot 22: 150 ms He3. 5.3 T.
J 1.8 to 2.8 MW, steps, ctr-CD phase.
Got TS data back (Well, I figured out the password).
Disrupted at 0.7 sec.

next: 200 ms Helium

Apr 25 2008 04:28:17:590PM 1080425023 Yijun Lin shot 23: 200 ms He3. 5.3 T.
J 1.8 to 2.8 MW, steps, ctr-CD phase.
a tiny H-mode. Tripped FMIT #3.
Velocicy changed 15 km/sec. delta W = 10 kJ. Much smaller than shot 17.
(Too much Helium?)

Next: 150 ms He3, 4.8 T. ctr-cd phase (MC layer is at 62 cm. Far off-axis)

Apr 25 2008 05:06:41:560PM 1080425025 Yijun Lin Shot 25: 150 ms He3, J port flat 2 MW from .6 to 1.5 sec. ramp B field from 5.4 to 4.8 T, from .7 to 1.3 sec. (LSN plasma)
Got several H-modes.
The rotation still exceeds the scaling by a lot (especially when B~ 5.2 T)

Next: reload shot 17, inner wall limited, to avoid H-mode. Same B ramp as shot 25.

Apr 25 2008 05:24:21:650PM 1080425026 Yijun Lin Shot 26: 150 ms He3, J port flat 2 MW from .6 to 1.5 sec. Ctr-CD phase. ramp B field from 5.4 to 4.8 T, from .7 to 1.3 sec. (inner wall limited plasma)
Plasma.
The response is rather broad to B field. The velocity seemed to peak between 5.2 and 4.9 Tesla, and lower on both sides of B field.

End of run.

Physics Operator Comments

Apr 25 2008 09:14:40:880AM 1080425001 Jim Irby loaded from 1080424027 --- limited, large outer gap, 800 kA
prefill at 23 ms
pg2 (helium-3) from 0.200 to 0.350 s
Tf current from 150 to 141 kA (5.1T)
loaded

increased rate of rise of nl_04 request
loaded

we will start with the later part of Yijun's run plan:

1. Reload shot 1080422026 (5.1 T, USN). 150 ms Helium puff. D and E 0.6 to 1.5 s, and J from 0.8 to 1.5 s, but using shot 1080424027 adjusted to 5.1T

Noticed too late that I still had the density ramp from shot 27

fizzle --- OH2_U did not commutate

Now I can fix the density programming

Apr 25 2008 09:48:13:020AM 1080425002 Jim Irby checking on OH2_U commutation ---

prefill pressure looked good on shot 01, so I will leave it alone

nl_04 request to 7e19/m^2
loaded

recool for 19:00 minutes and counting

plasma for 1.29 s --- almost lost at 0.12 s

radiation takes off around 1.28 s --- Yijun managed over 3 MW of icrf

Matt reports SS influx starting with icrf pulse

large density rise with icrf

neut/hards low compared to 1080424027 --- higher density/no lh

Apr 25 2008 10:03:46:310AM 1080425003 Jim Irby prefill from 23 to 21 ms
loaded

plasma for 1.517 s --- good startup --- issue at 0.120 is gone

radiated power up early compared to shot 02
radiated power 0.8 MW at 0.8 s, compared to 0.3 MW on shot 02
step up to 1.2 MW with icrf turn-on

Matt is getting good profile info --- indicates source on outside around a to b or c, and high (on shot 02).

Apr 25 2008 10:18:15:883AM 1080425004 Jim Irby no dpcs changes

plasma for 1.529 s --- starup looks good

two-pi low until icrf

Apr 25 2008 10:34:42:460AM 1080425005 Jim Irby Argon from 0.3 to 0.4 s --- hope Matt and Yijun can get some rotation data
loaded

plasma nearly to rampdown

Jim Terry sees object in gas puff view --- something on wall in b-c area
It glows for 1/2 s after disruption

Apr 25 2008 10:46:53:937AM 1080425006 Jim Irby try again

no power shot --- incorrect status reports from power supply plcs --- Joe is checking this problem out

Apr 25 2008 11:13:19:397AM 1080425007 Jim Irby try again --- should have argon this time

plasma into rampdown

Apr 25 2008 11:38:29:603AM 1080425008 Jim Irby TF from 5.1 to 5.3 T

lots of runaways by 50 ms

self powered crowbars on oh2u,l, oh1

short plasma --- lots of runaways

Apr 25 2008 11:50:35:503AM 1080425009 Jim Irby Tf to 5.3 T (147 kA)
loaded

plasma for 1.24 s --- early neuts/hards way down from 07

Apr 25 2008 12:07:34:017PM 1080425010 Jim Irby helium puff to 50 ms (0.20 to 0.25 s)
loaded

we will have Ninja at a low level(no delta nl) starting at 1.2 s

plasma for 1.214 s, a little shorter than shot 09

d+e to 1.7 MW at 0.6 s
j takes power to 3.3 MW at 0.8 s
very little increase in radiation at 0.8 s
about 1 MW indicated by two-pi at 1 s

mass49 increased nearly a factor of three following disruption on shot 09. Was about 3.5e8 Torr on this shot. This level is a factor of 10 down from levels seen during cleanup following the massive runaway shot (April 1st).

Apr 25 2008 12:25:17:000PM 1080425011 Jim Irby no dpcs changes

plasma for 1.15 s

radiation staying low early

Apr 25 2008 12:28:45:690PM 1080425012 Jim Irby no dpcs changes but more j-port power

plasma for 1.06 s --- 5 MW of rf from 1.0 s

Apr 25 2008 12:42:52:653PM 1080425013 Jim Irby helium puff from 0.20 to 0.35 s

plasma for 1.07 s --- neuts/hards up a little early
startup still good

Apr 25 2008 12:52:15:207PM 1080425014 Jim Irby no dpcs changes

450 kA disruption ---- lots of hards by 40 ms

Apr 25 2008 01:05:15:280PM 1080425015 Jim Irby prefill from 21 to 23 ms

plasma for 0.76 s --- lots of hards early again, but better than last shot
gas still too low --- lower than on shot 14??

Apr 25 2008 01:33:47:643PM 1080425016 Jim Irby prefill from 23 to 26 ms
loaded

plasma for 0.76 s --- ICRF power too high too early?

Apr 25 2008 01:33:57:817PM 1080425017 Jim Irby ICRF d+e and j timing switched --- lower power to start

plasma for 1.208 s (when we go to high power)

Apr 25 2008 03:02:57:213PM 1080425018 Jim Irby loaded from 1080424017 --- then decided I should have just imported seg 2
so I reloaded 1080425017 and then:

import seg 2 from 1080424017 into seg 2 --- 5.4 T, 0.8 MA, SNL
seg 4 off seg 2 on
copied gas and field programming from seg 4 to seg 2
copied nl_04 programming from seg 4 to seg 2
loaded

no icrf

control system goes crazy --- supplies reach PLC limits

TCI gatevales closed before shot ---- lots of gas injected --- pressure started up at -3.4 s --- 20 mTorr by -2.75 s

Apr 25 2008 03:22:27:417PM 1080425019 Jim Irby loaded from 1080425017
loaded
Steve thinks it's okay
import seg02 from 1080424017 into seg 2
seg04 off, seg02 on
loaded
Steve thinks it looks okay
copied nl_04, pg1 and pg2 programming from seg04 to seg02

we will try a no power test
also diabled all the gases

phyop READY at 1:16:45 into RECOOL

Steve thinks dpcs outputs look fine

Apr 25 2008 03:43:34:620PM 1080425020 Jim Irby try for plasma

plasma for 0.543 s

outer gap awfully small at 200 ms --- will try to fix..

Apr 25 2008 03:54:53:410PM 1080425021 Jim Irby ramping rcur from 100 to 600 ms to 0.662 m
loaded

plasma for 0.511 s --- shorter but MARFEing gone

gap larger at beginning and then shrinks --- will slow ramp for next shot

neuts and hards fine

Apr 25 2008 04:07:52:873PM 1080425022 Jim Irby rcur now ramping from 100 to 1500 ms

will try for a little j-port power
argon (100 ms) and helium (150 ms) enabled

plasma for 0.743 s --- 1.5 MW of icrf

outer gap actually pretty flat at 2.1 cm

Apr 25 2008 04:33:49:110PM 1080425023 Jim Irby helium puff from 200 to 400 ms

rcur ramping to 0.652 m (was 0.662 m)
loaded

plasma into rampdown
outer gap from 2.5 to 2.7 cm
1.58 MW to 2.4 MW from J

radiation low: Mo

Apr 25 2008 04:50:17:640PM 1080425024 Jim Irby TF to 133 kA (4.8 T)
helium from 200 to 350 ms
loaded

icrf pickup on magnetics and even the oh coax signals for last several shots

plasma for 1.669 s

tci signals very bad --- lost feedback
position control of plasma arm not working properly

Apr 25 2008 05:07:11:167PM 1080425025 Jim Irby plasma arm tci feedback disabled

TF ramping from 5.4 to 4.8 T from 0.7 to 1.3 s
loaded

plasma into rampdown --- a few h-modes

Apr 25 2008 05:22:43:493PM 1080425026 Jim Irby loaded from 1080425017 --- back to inner wall limited
put in ramp in Bt from 0.7 to 1.3 s
loaded

plasma into rampdown

Engineering Operator Comments

Shot Time Type Status Comment

1 09:09:21:657AM Plasma Bad OH com fault

2 09:35:55:813AM Plasma Ok

3 09:51:00:740AM Plasma Ok

4 10:04:03:233AM Plasma Ok

5 10:19:26:290AM Plasma Ok

6 10:40:20:933AM Plasma Bad TF pc fault

7 10:57:16:290AM Plasma Ok

8 11:13:45:473AM Plasma Bad OH1 breaker opened Self powered ckt fired, fuses checked OK

9 11:42:55:980AM Plasma Ok

10 11:55:43:740AM Plasma Ok

11 12:08:05:360PM Plasma Ok

12 12:20:46:527PM Plasma Ok

13 12:33:21:177PM Plasma Ok

14 12:45:47:857PM Plasma Ok

15 12:59:23:103PM Plasma Ok

16 01:14:33:067PM Plasma Ok

17 01:26:53:687PM Plasma Ok

18 01:57:11:897PM Plasma Bad Power supplies faulted on overcurrent error

19 03:17:41:070PM Test Ok DPCS Test

20 03:29:12:843PM Plasma Ok

21 03:47:47:107PM Plasma Ok

22 04:00:53:773PM Plasma Ok

23 04:18:19:880PM Plasma Ok

24 04:36:34:440PM Plasma Ok

25 04:55:29:817PM Plasma Ok

26 05:09:56:717PM Plasma Ok

System Availability

Apr 25 2008 09:09:13:563AM

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 no First Boronization 5/9/07 Bottle has been removed from the cell Sep 14 2007 12:42PM (dekow) 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 no Dewar warm. Apr 23 2008 09:04AM (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 CO2 Laser is on --- initial alignment complete Nov 16 2007 01:23PM (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
Apr 25 2008 09:11:50:580AM	1080425001	Yijun Lin	Because of the difficulties getting good plasmas yesterday, I plan to run several shots like those on 1050422 first (5.1 T), with ICRF mode conversion only. This will be easier than 6 T plasmas. (LH launcher is all the way back before we can get reliable plasma). Plasma parameter: use shot 1080424027,with inner wall limited and large outer gap. Helium-3 puff from 0.2 sec for 150 ms. J 1.6 MW from 0.8 to 1.5 sec. D+E 1.6 MW from 0.6 to 1.5 sec. Result: fizzle. Next: repeat.
Apr 25 2008 09:44:09:817AM	1080425002	Yijun Lin	Plasma, disrupted. J antenna heating phase. 5,1 T, 150 ms He3 puff. No hirex-sr data. Maybe useful data on sawtooth. Next: J Co-CD phase.
Apr 25 2008 10:03:08:123AM	1080425003	Yijun Lin	shot 3: Plasma. J antenna CO-CD phase. 5,1 T, 150 ms He3 puff. Core rotation velocity changed from -17 km/sec to +10 km/sec when J is on. (This change is more than DWplasma/Ip scaling) Next shot: J ctr-CD phase
Apr 25 2008 10:17:22:120AM	1080425004	Yijun Lin	shot 4: Plasma. J antenna Ctr-CD phase. 5.1 T, 150 ms He3 puff. Good. Core rotation velocity changed from -19 km/sec to +14 km/sec when J is on Also Mo temperature jumped with J. Sawtooth definitely shorter than shot 3. Next: J heating phase. Same power level. Add Ar for rotation measurement.
Apr 25 2008 10:32:16:303AM	1080425005	Yijun Lin	shot 5: J heating phase. 5.1 T, 150 ms He3 puff. PO programed Argon, but no argon puffed. Good. Core rotation velocity changed from -13 km/sec to +12 km/sec when J is on.Sawtooth periods are somewhat in-between 3 and 4. next: run J earlier than D and E.
Apr 25 2008 10:45:40:360AM	1080425006	Yijun Lin	no power shot.
Apr 25 2008 11:29:41:020AM	1080425007	Yijun Lin	shot 7: Run J earlier than D+E. 5.1 T, 150 ms He3 puff. With Argon. J heating phase. Plasma. Ramp-down. Core rotation velocity changed from -12 km/sec to +20 km/sec when D+E is on. (stored energy changed by 20 kJ) Compared to shot 1080422025, 026, we found Ctr-CD J antenna drives the most rotation. Next: 5.3 T. Run J, then D.
Apr 25 2008 11:18:26:790AM	1080425008	Yijun Lin	early disruption.
Apr 25 2008 11:51:16:253AM	1080425009	Yijun Lin	shot 9: 5.3 Tesla. 150 ms Helium-3, J ctr-CD phase. (to compare with shot 4) Plasma. Velocity from -19 to 13 km/sec. Barely Wmhd change. Similar to shot 4. (so the effect is there with on-axis MC also). next: 50 ms Helium. Minority heating case, and check if this is really MC effect.
Apr 25 2008 12:04:45:450PM	1080425010	Yijun Lin	shot 10: 5.3 Tesla. 50 ms Helium-3, J ctr-CD phase. (to compare with shot 9) Velocity changed 34 km/sec with no stored energy change. So, this may not be related to MC at all. Next: run J at heating phase.
Apr 25 2008 12:17:19:227PM	1080425011	Yijun Lin	shot 11: 5.3 Tesla. 50 ms Helium-3, J heating phase (cf. shot 10) Velocity changed 34 km/sec. Delta W 10 kJ. (So part of the change is related to delta W). next: step up J power, 1, 2, and 3 MW. Ctr-CD phase.
Apr 25 2008 12:33:34:020PM	1080425012	Yijun Lin	shot 12: 5.3 Tesla. 50 ms Helium-3, J ctr-CD phase, Step J power (1, 2, 3 MW). (cf. shot 10) The velocity change seems only at the first step (1 MW). very little change at higher power. (Is the velocity saturated?) Next: 150 ms Helium and check out whether it is better.
Apr 25 2008 12:43:40:747PM	1080425013	Yijun Lin	shot 13: 5.3 Tesla. 150 ms Helium-3, J ctr-CD phase, Step J power (1, 2, 3 MW). Velocity changed 37 km/sec. Delta W 6 kJ. (this is better than shot 12. MC seems to drive more rotation than presumably minority heating). Next: J heating phase.
Apr 25 2008 12:50:27:080PM	1080425014	Yijun Lin	early disruption. Next: stack up D and E, compared with stack-up J.
Apr 25 2008 01:05:18:217PM	1080425015	Yijun Lin	shot 15: 5.3 Tesla. 150 ms Helium-3. D/E 1.8 to 2.8 MW, steps J 1.8 to 2.8 MW, steps, ctr-CD phase. result: disrupted at .77 sec. too early. next: repeat.
Apr 25 2008 01:19:14:743PM	1080425016	Yijun Lin	shot 16: 5.3 Tesla. 150 ms Helium-3. D/E 1.8 to 2.8 MW, steps J 1.8 to 2.8 MW, steps, ctr-CD phase. result: disrupted at .77 sec. too early. (Maybe it cannot take too much power from D+E). next: Run J earlier than D+E.
Apr 25 2008 01:54:31:940PM	1080425017	Yijun Lin	shot 17: 5.3 Tesla. 150 ms Helium-3. J 1.8 to 2.8 MW, steps, ctr-CD phase. D/E 1.8 to 2.8 MW, steps AND YES, the rotation rose significantly when J was on. (32 km/sec. 10 kJ deltaW) The rotation did not change much when D/E was on (20 km/sec, 20 kJ delta W) (the rotation profile is rather flat) Next: ohmic shot. Jim is changing plasma shape and see what kind of plasma we can still run with the problem inside the vessel.
Apr 25 2008 02:54:58:240PM	1080425018	Yijun Lin	try ohmic plasma. no plasma. DPCS problem. Cell entry to move LH launcher in and expect to run the first part of the MP later today.
Apr 25 2008 03:25:29:917PM	1080425019	Yijun Lin	DPCS test. no plasma.
Apr 25 2008 03:48:30:123PM	1080425020	Yijun Lin	ohmic shot. disrupted. (No TS data. VNC terminal for laser control vanished. i don't have the password to start it).
Apr 25 2008 04:11:29:530PM	1080425022	Yijun Lin	shot 22: 150 ms He3. 5.3 T. J 1.8 to 2.8 MW, steps, ctr-CD phase. Got TS data back (Well, I figured out the password). Disrupted at 0.7 sec. next: 200 ms Helium
Apr 25 2008 04:28:17:590PM	1080425023	Yijun Lin	shot 23: 200 ms He3. 5.3 T. J 1.8 to 2.8 MW, steps, ctr-CD phase. a tiny H-mode. Tripped FMIT #3. Velocicy changed 15 km/sec. delta W = 10 kJ. Much smaller than shot 17. (Too much Helium?) Next: 150 ms He3, 4.8 T. ctr-cd phase (MC layer is at 62 cm. Far off-axis)
Apr 25 2008 05:06:41:560PM	1080425025	Yijun Lin	Shot 25: 150 ms He3, J port flat 2 MW from .6 to 1.5 sec. ramp B field from 5.4 to 4.8 T, from .7 to 1.3 sec. (LSN plasma) Got several H-modes. The rotation still exceeds the scaling by a lot (especially when B~ 5.2 T) Next: reload shot 17, inner wall limited, to avoid H-mode. Same B ramp as shot 25.
Apr 25 2008 05:24:21:650PM	1080425026	Yijun Lin	Shot 26: 150 ms He3, J port flat 2 MW from .6 to 1.5 sec. Ctr-CD phase. ramp B field from 5.4 to 4.8 T, from .7 to 1.3 sec. (inner wall limited plasma) Plasma. The response is rather broad to B field. The velocity seemed to peak between 5.2 and 4.9 Tesla, and lower on both sides of B field. End of run.

Physics Operator Comments
Apr 25 2008 09:14:40:880AM	1080425001	Jim Irby	loaded from 1080424027 --- limited, large outer gap, 800 kA prefill at 23 ms pg2 (helium-3) from 0.200 to 0.350 s Tf current from 150 to 141 kA (5.1T) loaded increased rate of rise of nl_04 request loaded we will start with the later part of Yijun's run plan: 1. Reload shot 1080422026 (5.1 T, USN). 150 ms Helium puff. D and E 0.6 to 1.5 s, and J from 0.8 to 1.5 s, but using shot 1080424027 adjusted to 5.1T Noticed too late that I still had the density ramp from shot 27 fizzle --- OH2_U did not commutate Now I can fix the density programming
Apr 25 2008 09:48:13:020AM	1080425002	Jim Irby	checking on OH2_U commutation --- prefill pressure looked good on shot 01, so I will leave it alone nl_04 request to 7e19/m^2 loaded recool for 19:00 minutes and counting plasma for 1.29 s --- almost lost at 0.12 s radiation takes off around 1.28 s --- Yijun managed over 3 MW of icrf Matt reports SS influx starting with icrf pulse large density rise with icrf neut/hards low compared to 1080424027 --- higher density/no lh
Apr 25 2008 10:03:46:310AM	1080425003	Jim Irby	prefill from 23 to 21 ms loaded plasma for 1.517 s --- good startup --- issue at 0.120 is gone radiated power up early compared to shot 02 radiated power 0.8 MW at 0.8 s, compared to 0.3 MW on shot 02 step up to 1.2 MW with icrf turn-on Matt is getting good profile info --- indicates source on outside around a to b or c, and high (on shot 02).
Apr 25 2008 10:18:15:883AM	1080425004	Jim Irby	no dpcs changes plasma for 1.529 s --- starup looks good two-pi low until icrf
Apr 25 2008 10:34:42:460AM	1080425005	Jim Irby	Argon from 0.3 to 0.4 s --- hope Matt and Yijun can get some rotation data loaded plasma nearly to rampdown Jim Terry sees object in gas puff view --- something on wall in b-c area It glows for 1/2 s after disruption
Apr 25 2008 10:46:53:937AM	1080425006	Jim Irby	try again no power shot --- incorrect status reports from power supply plcs --- Joe is checking this problem out
Apr 25 2008 11:13:19:397AM	1080425007	Jim Irby	try again --- should have argon this time plasma into rampdown
Apr 25 2008 11:38:29:603AM	1080425008	Jim Irby	TF from 5.1 to 5.3 T lots of runaways by 50 ms self powered crowbars on oh2u,l, oh1 short plasma --- lots of runaways
Apr 25 2008 11:50:35:503AM	1080425009	Jim Irby	Tf to 5.3 T (147 kA) loaded plasma for 1.24 s --- early neuts/hards way down from 07
Apr 25 2008 12:07:34:017PM	1080425010	Jim Irby	helium puff to 50 ms (0.20 to 0.25 s) loaded we will have Ninja at a low level(no delta nl) starting at 1.2 s plasma for 1.214 s, a little shorter than shot 09 d+e to 1.7 MW at 0.6 s j takes power to 3.3 MW at 0.8 s very little increase in radiation at 0.8 s about 1 MW indicated by two-pi at 1 s mass49 increased nearly a factor of three following disruption on shot 09. Was about 3.5e8 Torr on this shot. This level is a factor of 10 down from levels seen during cleanup following the massive runaway shot (April 1st).
Apr 25 2008 12:25:17:000PM	1080425011	Jim Irby	no dpcs changes plasma for 1.15 s radiation staying low early
Apr 25 2008 12:28:45:690PM	1080425012	Jim Irby	no dpcs changes but more j-port power plasma for 1.06 s --- 5 MW of rf from 1.0 s
Apr 25 2008 12:42:52:653PM	1080425013	Jim Irby	helium puff from 0.20 to 0.35 s plasma for 1.07 s --- neuts/hards up a little early startup still good
Apr 25 2008 12:52:15:207PM	1080425014	Jim Irby	no dpcs changes 450 kA disruption ---- lots of hards by 40 ms
Apr 25 2008 01:05:15:280PM	1080425015	Jim Irby	prefill from 21 to 23 ms plasma for 0.76 s --- lots of hards early again, but better than last shot gas still too low --- lower than on shot 14??
Apr 25 2008 01:33:47:643PM	1080425016	Jim Irby	prefill from 23 to 26 ms loaded plasma for 0.76 s --- ICRF power too high too early?
Apr 25 2008 01:33:57:817PM	1080425017	Jim Irby	ICRF d+e and j timing switched --- lower power to start plasma for 1.208 s (when we go to high power)
Apr 25 2008 03:02:57:213PM	1080425018	Jim Irby	loaded from 1080424017 --- then decided I should have just imported seg 2 so I reloaded 1080425017 and then: import seg 2 from 1080424017 into seg 2 --- 5.4 T, 0.8 MA, SNL seg 4 off seg 2 on copied gas and field programming from seg 4 to seg 2 copied nl_04 programming from seg 4 to seg 2 loaded no icrf control system goes crazy --- supplies reach PLC limits TCI gatevales closed before shot ---- lots of gas injected --- pressure started up at -3.4 s --- 20 mTorr by -2.75 s
Apr 25 2008 03:22:27:417PM	1080425019	Jim Irby	loaded from 1080425017 loaded Steve thinks it's okay import seg02 from 1080424017 into seg 2 seg04 off, seg02 on loaded Steve thinks it looks okay copied nl_04, pg1 and pg2 programming from seg04 to seg02 we will try a no power test also diabled all the gases phyop READY at 1:16:45 into RECOOL Steve thinks dpcs outputs look fine
Apr 25 2008 03:43:34:620PM	1080425020	Jim Irby	try for plasma plasma for 0.543 s outer gap awfully small at 200 ms --- will try to fix..
Apr 25 2008 03:54:53:410PM	1080425021	Jim Irby	ramping rcur from 100 to 600 ms to 0.662 m loaded plasma for 0.511 s --- shorter but MARFEing gone gap larger at beginning and then shrinks --- will slow ramp for next shot neuts and hards fine
Apr 25 2008 04:07:52:873PM	1080425022	Jim Irby	rcur now ramping from 100 to 1500 ms will try for a little j-port power argon (100 ms) and helium (150 ms) enabled plasma for 0.743 s --- 1.5 MW of icrf outer gap actually pretty flat at 2.1 cm
Apr 25 2008 04:33:49:110PM	1080425023	Jim Irby	helium puff from 200 to 400 ms rcur ramping to 0.652 m (was 0.662 m) loaded plasma into rampdown outer gap from 2.5 to 2.7 cm 1.58 MW to 2.4 MW from J radiation low: Mo
Apr 25 2008 04:50:17:640PM	1080425024	Jim Irby	TF to 133 kA (4.8 T) helium from 200 to 350 ms loaded icrf pickup on magnetics and even the oh coax signals for last several shots plasma for 1.669 s tci signals very bad --- lost feedback position control of plasma arm not working properly
Apr 25 2008 05:07:11:167PM	1080425025	Jim Irby	plasma arm tci feedback disabled TF ramping from 5.4 to 4.8 T from 0.7 to 1.3 s loaded plasma into rampdown --- a few h-modes
Apr 25 2008 05:22:43:493PM	1080425026	Jim Irby	loaded from 1080425017 --- back to inner wall limited put in ramp in Bt from 0.7 to 1.3 s loaded plasma into rampdown

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:09:21:657AM	Plasma	Bad	OH com fault
2	09:35:55:813AM	Plasma	Ok
3	09:51:00:740AM	Plasma	Ok
4	10:04:03:233AM	Plasma	Ok
5	10:19:26:290AM	Plasma	Ok
6	10:40:20:933AM	Plasma	Bad	TF pc fault
7	10:57:16:290AM	Plasma	Ok
8	11:13:45:473AM	Plasma	Bad	OH1 breaker opened Self powered ckt fired, fuses checked OK
9	11:42:55:980AM	Plasma	Ok
10	11:55:43:740AM	Plasma	Ok
11	12:08:05:360PM	Plasma	Ok
12	12:20:46:527PM	Plasma	Ok
13	12:33:21:177PM	Plasma	Ok
14	12:45:47:857PM	Plasma	Ok
15	12:59:23:103PM	Plasma	Ok
16	01:14:33:067PM	Plasma	Ok
17	01:26:53:687PM	Plasma	Ok
18	01:57:11:897PM	Plasma	Bad	Power supplies faulted on overcurrent error
19	03:17:41:070PM	Test	Ok	DPCS Test
20	03:29:12:843PM	Plasma	Ok
21	03:47:47:107PM	Plasma	Ok
22	04:00:53:773PM	Plasma	Ok
23	04:18:19:880PM	Plasma	Ok
24	04:36:34:440PM	Plasma	Ok
25	04:55:29:817PM	Plasma	Ok
26	05:09:56:717PM	Plasma	Ok