Alcator C-Mod Run 1060426 Information

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Miniproposals
Miniproposal:410
Date Filed: 1/19/2005
Title:Extension of pedestal scalings
First Author:Jerry Hughes
Session Leader:Jerry Hughes (shots 1-19)

Operators
Session leader(s):Jerry Hughes
Physics operator(s):Ian Hutchinson,Steve Wolfe
Engineering operator(s):Andy Pfeiffer,Sam Pierson,Gary Dekow

Engineering Operator Run Comment
MP410: Extension of pedestal studies SL: Hughes PO: Hutchinson/Wolfe

Session Leader Plans
Entered: Apr 25 2006 01:23:43:320PM
Author: Jerry Hughes
MP410: Extension of pedestal studies
SL: Hughes
PO: Hutchinson/Wolfe

The goal today is to finish the extension of H-mode pedestal
characterization on C-Mod by obtaining H-modes at high Bt, with varied
Ip and Prf. This will require the ICRF D-He3 heating scheme using
80MHz from all antennae. We will begin the day with shots at normal
conditions (5.4T, 0.9MA), then go to 8T and optimize He3 puffing. When
RF is heating efficiently at 8T, we will begin a current scan.

Special requirements:

*Gas:
--Need He3 ready for the 8T portion of run.
--NINJA plenum loaded with 10psi D2

*Set up for between-shot boronization. This will likely be requested
as the day progresses, and should be done in the optimal dwell
configuration.

*GPC/GPC2 configured as well as possible for high-field measurements.


Shot sequence:

1. Load from shot 1050624019 (Bt=5.4T, Ip=0.9MA, nl04=8e19m^-2). Apply
three 200ms flat pulses of RF starting at t=0.6, 0.9, 1.2s. Prf=2,
3, 4MW. [~2 shots]

2. Raise Bt-->8T. (Ip=0.9MA, nl04=8e19m^-2). This will make
q95~6.4. Optimize He3 puff for maximum RF efficiency. [~4 shots]

3. Begin current scan. At each point apply 200-ms flat pulses of RF as
in Step 1. Prf should be stepped from 3MW up to the maximum
available.
A. Ip-->0.6MA (q95~9.6) nl04=6e19 [~2 shots]
B. Ip-->0.9MA (q95~6.4) nl04=8e19 [~2 shots]
C. Ip-->1.2MA (q95~4.8) nl04=1.1e20 [~2 shots]
D. Ip-->1.6MA (q95~3.6) nl04=1.5e20 [~2 shots]
E. Ip-->2.0MA (q95~2.9) nl04=1.8e20 [~2 shots]

4. (Time permitting) If Bt can be lowered to a value between 7.0 and
7.3T, and the D-H resonance can be kept safely out of the antenna
box, then we can try some shots at the slightly reduced
field. Otherwise, return to 5.4T and apply all available RF power
to discharges at 0.6,0.9 and 1.2MA.


Physics Operators Plans
Entered: Apr 25 2006 02:22:40:460PM
Author: Ian Hutchinson
MP410 High Field Pedestal Studies

Engineering Setup:

Overnight ECDC in Deuterium. Finish at 7am or before.

We require He3 puff for this run. Get instructions from Steve Wukitch.

Ninja plenum with 10psi D2.

Set up for between shots boronization.

Power systems initial settings as in run 1060421.
Entered: Apr 25 2006 05:52:49:570PM
Author: Steve Wolfe
Addendum to PO_PLAN for Wed. 4/26/2006
Gas Setup:
   fill B-Top            with  6 psi D2  Hybrid enabled  (PG4)
   fill B-side lower     with  1 psi Ar Hybrid DISABLED (PG1)
  *Fill B-side upper with 15psi He3. Hybrid DISABLED to start (PG2)  
   fill B-main (C-side)  with 40 psi D2  Hybrid enabled  (PG3)
   fill NINJA with 10psi D2 (Disable)
We will want to be ready to use between-shot boronization during the run, 
but do not open the bottle until requested.

Enable the following gate valves and shutters, assuming no vacuum problems:
ECE, VUV, Z-bolo shutters; these must be disabled for between-shot boronization
MSE shutter should be CLOSED before the run and remain closed. 

All between shot boronizations 10 minutes. Each sweep 200
seconds with a 20 second pause. All sweeps are 65-75 cm with pause
at 70 cm. Boronization pressure set to 5 mTorr. 

Start with power system setup as on 1060421029: 5.4T LSN 
Note TF invert at 1.6sec
   TF fizzle delay at 600msec

PCS setup for 5.4 tesla part of run:
  import seg2 from SEGMENT 3 of 1050624019
  Recalculate all Magnetics Predictors (RCUR,ZCUR,CLEARIN,RXL,ZXL,RXU,ZXU)
    for new BP16 loop. 
  Copy B21_PROJ wire from recent shot (wire 9); Zero ACOIL_CUR on All_V screen,
    Change INTEGRATOR C Gate to start at .3sec

For 8T part of run, we will want power system setup as 1040428017
Initial setting for pg2 (He3) puff during 8T operation is 70msec @0.2sec; 
adjust to taste.
Note: TF_CURRENT to -220000 in segments 1 & 2, start at -1.5sec (copy
from 1040428017 or just draw it).

For high current points at 8T, delay Ip gain switch from .65 to .8, 
decrease max ip gain from 9 to 4. Increase IC_EF4 to -3000A. 

Session Leader Summaries
Entered: Apr 26 2006 05:37:36:423PM
Author: Jerry Hughes
MP410: Extension of pedestal studies
SL: Hughes
PO: Hutchinson/Wolfe

The goal today was to finish the extension of H-mode pedestal
characterization on C-Mod by obtaining H-modes at high Bt, with varied
Ip and Prf. Only marginal progress was made toward this goal, due to
machine and ICRF performance being less than desired. More run time
will be required in order to complete this MP.

We began as planned by revisiting the 5.4T, 0.9MA point obtained
previously as a part of this MP. Input RF power was optimized in this
target discharge during shots 1--3. On these early shots it was clear
that D and E port antennae were performing better than J, a result
which persisted when we proceeded to higher field.

Shots 4--11 were attempts to get good H-modes at 7.9T, 0.9MA. These
shots suffered from a lot of injections, many of them H-mode
killers. A few were plasma killers. An injection ended shot 8 in a
disruption well before RF turn-on, so we were not able to blame RF
alone. H-modes with decent pedestal data were obtained in these shots,
the best H-mode occurring with 4MW RF on shot 6. This shot gave us a
pedestal temperature of 900eV and peak H-factor of 1.7, and made for
the best performance of the day.

We bypassed the 600kA portion of the run called out in the run plan
and moved up in current, hoping that RF performance and impurity
accumulation would improve. The scan upwards in current filled the
rest of the run day. From shot 13 on the problems mounted, computer
failures, fizzles and early disruptions eating up most of the
shots. H-modes were obtained at 1.2MA with 2.6MW on shot 15. The best
RF performance of the day came on shot 18, a 1.6MA shot. Only
dithering H-modes were seen here, perhaps because the target density
was too high, or because He3 concentration had dropped too low for
effective heating.

The repeated and unexplained injections today were rather vexing, and
the baseline levels of radiated power seemed to rise throughout the
day. The plan to utilize between-shot boronization was scrubbed, since
power room access was frequently required to replace blown TF fuses
and investigate pulled breakers. Hopefully we have made some progress
toward breaking in the machine at 8T today, and tomorrow's run will go
more smoothly.

Shots with useful (and marginally useful) data:
5.4T, 0.9MA: 1,2,3
7.9T, 0.9MA: 4,6,10,11 (5,7)
7.9T, 1.2MA: 15
7.9T, 1.6MA: (18)


Physics Operator Summaries
Entered: Apr 26 2006 06:01:40:860PM
Author: Steve Wolfe
 
Physop Summary for 1060426

MP#410
SL: Hughes
PO: Hutch/Wolfe
Worrier in chief: Irby

For the first 8T run in two years, this wasn't too bad. 
By any other standard though...

On the plus side, the machine ran at 7.8T, and we made some 
decent H-modes with He3 ICRF heating, and we didn't break anything.
However, only a small fraction of the experiment was actually 
accomplished. Three points on the 8T current scan were done, 
not all with ideal data.  See SL_SUMMARY for details. 

The first three shots of the day were at 5.4T and ran ok, 
except that the RF was struggling, especially J-port. 
First shot at 8T (actually 7.8) was #4, set up by Ian
as called for in the PO_PLAN.

Shots 4-6 ran ok as programmed, had H-modes of varying
quality, RF still faulty but maybe getting better. Shot#6
had quite high pedestal temp, respectable Wmhd for 900kA
(we skipped the low current point A in SL plan).

Shot 7 was the first of what would turn out to be an unfortunately
large number of "brick"-induced disruptions. It was never clear
where these were coming from; most were not during the RF, though
the one on shot 7 it was. We've seen this elevated injection frequency 
at 8T before; it may just be that the machine gets more of a shake
at the high field, so more loose stuff falls in. 

We moved on to the 1.2MA case on shot#12, and tried to go 
up to 1.6 beginning on shot#16 (actually got it on #18). The
2MA case was not attempted. I did change the Ip gain and switch
time before the 1.6MA attempt, and at least for this case
it seemed to work out ok. The OH1 did hit a voltage rail after 
the RF went off on #18, followed almost immediately by an injection.
I think the injection should be blamed for the disruption, but 
the loss on OH1 control didn't help. For the next shot (which didn't 
go) I lowered the Ip gain further and started the current rampdown
after the programmed end of the RF pulse at 1.3sec; probably this 
wouldn't have been necessary if there were no injection.  

Along with the disruptions we also had two datasystem/IGOR failures, and a number of breaker pulls, some do to real voltage or fuse loss
faults (on the disruptions) and some spurious instrumentation faults
on the TF supplies, long after the end of the pulse. Bill never
managed to track down the origin of these, so we'll probably still be 
plagued by them tomorrow. 

Shots #16 and #19 fizzled, probably 
due to preceding disruptions and/or startup injections, but maybe because of
tweaks I was making to try to get rid of runaways. The sparker was happily 
running over 1mA all day; no duds. After the run was over I looked at
the MFLUX plots, and it does look like maybe dropping the EF1 currents
by 100 to 150A to compensate for the extra 50kA in the TF half-turns
wouldn't hurt. 

Before shot#18, Wukie and Co. installed a microphone on the J3 transmission
line in the power room to try to distinguish transmission line arcs
from antenna arcs. Of course, on this shot J had no faults at all. We'll 
take that, although we also didn't get H-modes, just some dithers. Either
the density of 1.3e20 was too high or we need to adjust the He3 puff. 
There was heating, and the L-mode got to over 150kJ, and disrupted 
with another injection just after the RF turned off at 1.3sec. They would 
have raised the power on 19, but it fizzled. We also had halo current
warnings on 18, which went down; however this was a thermal quench with 
following VDE and I don't think the triggered gas jet would have caught it
in time. 

We never attempted between-shot boronization, partly because the 
frequent power system faults required power room access, which would have
had to be accomplished in SCBA suits if we had the diborane bottle open.
The quality of the H-modes we got, and the CIII level, indicated
the plasmas probably would have benefitted from some boronization. Amanda
decided fairly early that we would do a boronization tonight, before her
go at 8T pedestal run tomorrow. 

Scorecard:
        Tests        0
        Duds         0
        DAQ failures 2
        Fizzles      2
        Plasmas     15 (5 disruptions before 1sec)
        ---------   --
        Shots       19



Session Leader Comments
Apr 26 2006 09:23:45:293AM1060426001Jerry Hughes5.4T, 900kA. Density program looks a bit low, with nl04~7e19.
Some injections, RF has a bad match on all 4 antennas.
H-modes are there, looking mostly ELM-free. Pedestal data are
good; only one YAG for the moment.
Apr 26 2006 09:37:28:573AM1060426002Jerry Hughes5.4T, 900kA. Target nl04 is higher. The shot looks pretty good,
though J-port is still having problems. (E-port also on the last pulse.)
H-modes are more EDA-like, with QCM on PCI. Pedestal data are
good.
Next shot will be a repeat, with perfect RF pulses. Both YAGs will be on.
Apr 26 2006 10:02:48:057AM1060426003Jerry Hughes5.4T, 900kA. Repeat of shot 2. We elect to stop fiddling with RF at
this field and push to 8.0T.
Both lasers are back, and alignment is decent.
Next-->8T
Apr 26 2006 10:40:24:200AM1060426004Jerry Hughes7.9T, 0.9MA. RF behavior is pretty similar to that at the lower field.
First RF pulse gives steady 2.1MW-->dithering H-modes. There's our
8T power threshold for today. 2 clear H-modes on the 2nd and 3rd
RF pulses. Te,95~400eV at the transition. There is a ~400eV pedestal from TS
at 710ms in the middle of the dithering H-modes.
Plasma shape is still good.
We blew some TF fuses. An extra 15 minutes will be required to replace them.
JT is digitizing the fast D-alpha diodes beginning at 600ms.
Apr 26 2006 11:12:23:730AM1060426005Jerry Hughes7.9T, 0.9MA. Disrupts at 730ms due to an earlier injection. H-mode lasts from 650--685ms. Funny little 600Hz oscillation on the D-alpha signal.

Apr 26 2006 11:39:19:307AM1060426006Jerry Hughes7.9T, 0.9MA. Mostly dithers, but a clean H-mode from 1.26--1.37s.
Hints of a low-f QCM on the PCI. Te,PED is getting to nearly a keV!
Density is relatively low; perhaps this backs up the old suggestions of
a 1/B scaling for ne,PED.
Apr 26 2006 11:57:47:743AM1060426007Jerry Hughes7.9T, 0.9MA. Essentially a repeat of shot 5, complete with injection and disruption at roughly the same time. Got one TS pedestal profile in the short-lived H-mode.
Ian will change strike point programming for next shot.
Apr 26 2006 12:20:59:340PM1060426008Jerry Hughes7.9T, 0.9MA. That was worse.
Disrupt at 523ms, well before RF.
Lots of fireworks on JANT, DANT. The injections are straight Mo,
so says Reinke.
Apr 26 2006 12:53:51:167PM1060426009Jerry HughesA non-shot. No power, no plasma, no data.
Apr 26 2006 01:25:23:657PM1060426010Jerry Hughes7.9T 0.9MA, went full length this time. RF trippy, especially J-port
H-modes are short-lived, fairly radiative. The QCM appears in bursts during some of these H-modes on PCI.
We do not obtain the nice high Te,PED of shot 6. Yijun will try to give steadier power on the next shot by changing the proportion of power in each antenna.
It seems we are consistently popping fuses and breakers with these shots, resulting in power room entries between shots. This is going to seriously impact the ability to perform between-shot boronization.
Next shot: Repeat, try to improve RF, hope for no injections.
Apr 26 2006 01:50:41:330PM1060426011Jerry Hughes7.9T 0.9MA, full length. Still some trips on the RF and injections, but
there is a decent H-mode from 1.21--1.36s. Peak RF power is over 4MW,
Prad is 1--2MW. QCM is seen spinning down in this H-mode, coincident with
the pedestal alpha_MHD increase. This is followed by an edge nu* increase,
which may correspond to a stronger stable QCM.
This is probably all we can do at this Ip.
Next shot: Ip-->1.2MA (q95<5) RF pulse train will be delayed, and will
only consist of two pulses.
Apr 26 2006 02:13:22:080PM1060426012Jerry Hughes7.9T 1.2MA, full length. Aside from J-port being extremely faulty,
and the apparent injection at 1.18s, this is a pretty good shot.
Not enough power to get into H-mode.
Next shot: lower nl04 from 1.1e20 to 1.0e20; perhaps this will improve H-mode access. Also, Yijun will reduce demand on J-port, hopefully giving us less faulty performance.
Apr 26 2006 02:31:44:097PM1060426013Jerry HughesAck-ity Ack.
Let's try again.
Apr 26 2006 03:10:59:987PM1060426014Jerry HughesEarly disruption. Fireworks on the JANT view at 0.281s.
Nice video of glowing chunk falling down into the divertor on WIDE2, from 800ms on.
Apr 26 2006 04:08:11:517PM1060426015Jerry Hughes7.9T, 1.2MA, full (enough) length. Multiple H-modes, fairly ELM-free.
2.6MW steady gives the longest H-mode. Unfortunately, increasing the demand
on J-port in the 2nd RF pulse results in a fault. Yijun says the match on
the antennas is still good.
Correction: the match on J is bad in the second pulse.
Next shot: Let's push on to Ip=1.6MA. Increase nl04.
Apr 26 2006 03:59:16:970PM1060426016Jerry HughesFizzle
Apr 26 2006 04:23:24:110PM1060426017Jerry HughesDisrupts at 400ms. The tokamak is being exceedingly naughty today.
Apr 26 2006 04:59:30:517PM1060426018Jerry Hughes7.9T, 1.57MA. Disrupts after RF ends at 1.3s.
The RF gurus have managed to provide a fairly flat pulse at up to 3.5MW.
What results is a long L-mode with >120kJ, and dithering H-modes!
TS catches some pedestals.
Next (and last) shot: no change to engineering parameters. delay RF onset to 900ms
and go for more power.
Also asked JT to delay fast diode trigger time to 0.9s.
Apr 26 2006 05:03:48:423PM1060426019Jerry HughesFizzle.

Physics Operator Comments
Apr 26 2006 09:03:59:790AMIan HutchinsonLoad from 1050624019. Discover that segment 3 is being used. Therefore we know where to load from.

Load from 1060425032. Import segment 3 from 1050624019 to segment 2.
Says we need to change bp16 to jk and recalculate magnetics predictors.

Load wire 9 from 1060425032. Zero A-coil current. Change integrator C gate to .3s

Try to load. Get error message about P_13 name. Twiddle point to prevent.

Load. OK.
Apr 26 2006 09:17:54:993AM1060426001Ian HutchinsonPlasma. Fine shot, with a few injections and RF a bit flakey, but 3 H-modes.
Apr 26 2006 09:38:21:323AM1060426002Ian HutchinsonFor this shot raise nl04 demand to .9 from .8.
Plasma. Radiation better controlled. J-port still ratty.

No changes
Apr 26 2006 10:03:42:930AM1060426003Ian HutchinsonPlasma. J-port problems still present. But time to go to 8T.

TF trace is currently starting at -1.5s. That's what we want.
TF ramp down is currently starting at 1.5s. We want 1.3s.
We get to flat TF at 0.8s.

Set TF to 220kA from -1.5 to +1.3s, in segment 1.
Copy TF trace from seg 1 to seg 2.
Add pg2 puff of 100V at .2s.
Load.
Apr 26 2006 10:47:03:870AM1060426004Ian HutchinsonPlasma. Got some short H-modes.
Very early breakdown, with bounce. Bz rather low.

IC_EF4 to -1325 from -1335A
Apr 26 2006 11:13:17:010AM1060426005Ian HutchinsonPlasma disrupts at .67s because of a brick.
D-port shows a hot-spot but not an obvious cause.
A strange glitch on some of the magnetics at 22ms.

No PCS changes.
Apr 26 2006 11:40:23:480AM1060426006Ian HutchinsonPlasma. 2 dithers followed by a proper H-mode, killed by a radiation spike.
J-port is looking more promising.

Extend TF flat-top to 1.4s.
Remove spurious He3 puff from segment 1.
Apr 26 2006 12:04:52:590PM1060426007Ian HutchinsonPlasma disrupts at .65s due to brick.

IR camera appears to indicate that the strike point goes into the slot at near the time of the radiative event. Equilibria show this is probably right.

Try to prevent the strike point from going into the slot by moving RXL to .003 from .001 at time .604s.
Apr 26 2006 12:35:00:073PM1060426008Ian HutchinsonPlasma disrupts at .526s. Another big brick. Cannot really spot a problem on the cameras.

Remove the previous change. Insert, instead, a new point in rxl to keep it
at .001 till 0.685s
Apr 26 2006 12:47:26:340PM1060426009Steve Wolfe
Shot#9: Ian has loaded shot 9 and gone off to class
Still trying to get the first point on Jerry's 8T current
scan with good RF.

No TF. No plasma. No data. 

Apr 26 2006 12:51:16:307PM1060426009Steve Wolfe
Shot#9: The DPCS log file looks like DPCS never saw the transition
to CHECK. I don't see anything after the INIT finished. 

We never got a store cycle, it looks like the dispatcher
may have fried? 

Apr 26 2006 01:14:53:233PM1060426010Steve Wolfe
Shot#10: Try that one again. Josh says it should be ok now. 
Hung in INIT - something in DNB tree?
plasma full length, but TF breakers pulled, and we got RF music. 
Looks like the shot is ok, three H-modes, all sort of ratty. 
J-port is thrashing thru all three pulses. 
Bouncy startup, early runaways. Bz is very negative. 
One early injection during first RF pulse, around .69sec
That may still be the remainder of whatever caused disruptions
on 7 and 8. 

Apr 26 2006 01:38:23:313PM1060426011Steve Wolfe
Shot#11: EF4 from -1325 to -1315, try for one more
disruption-free shot before raising current. 
plasma, no faults. 
RF a little better, still not up to shot 6.
Still one bounce on startup, some early runaways. 
Early injection isn't there, now there's one on second
pulse.  J still faulting. 

Next shot: Ip to 1.2MA, nl04 to 1.1e20


Apr 26 2006 02:10:45:517PM1060426012Steve Wolfe
Shot#12: Ip to 1.2MA, nl04 to 1.1e20. 
Pg4 from 20ms to 22ms
plasma ran through. Got the current and density, 
no h-modes, or maybe a short one after first rf pulse.
J faults all the way through.  
tf breakers tripped again after pulse.  
Still bouncing in startup, worse than last one; some runaways.
Impurity influx starting around 1.2 sec, not obvious from where. 

Apr 26 2006 02:25:58:987PM1060426013Steve Wolfe
Shot#13: NL04 down from 1.1e20 to 1.0
Ack failure - no pulse. 

Apr 26 2006 02:46:18:627PM1060426014Steve Wolfe
Shot#14: NL04 down from 1.1e20 to 1.0
Early disruption, big injection at .3sec. 
PF breaker pulled after the disruption. OH1. 
Still bouncing on startup - not relevant to this event, but I
want to fix it. 

Next shot: repeat and hope whatever it is finally broke loose. 
raise br0 and bz0 a bit, to try to get rid of startup bounce. 

Apr 26 2006 03:46:28:640PM1060426015Steve Wolfe
Shot#15: Br0 from -.0005 to 0., IC_EF4U from -1315 to -1305
 repeat and hope whatever it is finally broke loose. 
plasma, ran through. Had an injection around .25s but survived
this time. Two H-modes, still some faulting, close to 150kJ
on the first one. 
No bounce this time! Not sure if it's the changes I made or not.

Next shot: go to 1.6MA, 1.3e20

Apr 26 2006 04:01:32:347PM1060426016Steve Wolfe
 go to 1.6MA, 1.3e20; program start of flattop at .75s.
Delay Ip gain switch to .8sec, reduce gain from 9 to 4.
Fizzle! Looks like either it bounced or there were injections 
right after breakdown. Previous startup looked great, but I'll 
put a little of the Br0 back.  

Apr 26 2006 04:22:20:390PM1060426017Steve Wolfe
 
Shot#17: Br0 from 0 to -.0002
go to 1.6MA, 1.3e20; program start of flattop at .75s.
Delay Ip gain switch to .8sec, reduce gain from 9 to 4.
short disruption again, injection at .36sec, disrupts at .4
OH1 crowbars at .43.

And the startup bounced once, some runaways. 

Apr 26 2006 04:53:55:987PM1060426018Steve Wolfe
 
Shot#18:Slow down density rise, leave startup alone despite the bounce.
Plasma disrupted at 1.3sec, over 150kJ
Dithery H-mode. J stayed on: undoubtedly due to the installation
of a microphone on the transmission line in the power room. 
Got a halo current warning on that one; Maybe Bob was right about
putting on the gas jet. 

Next: try reducing Ip gain and starting Ip rampdown at 1.3sec

Apr 26 2006 05:08:29:000PM1060426019Steve Wolfe
 
Shot#19: start Ip rampdown at 1.3sec; reduce Ip gain to 2 at 1.3sec
Fizzle. CIII light and Zmeter way up, looks like an injection on 
the CIII at 11msec. Sparker still looks great. Bz is somewhat negative.

That's all for today. 

Engineering Operator Comments
ShotTimeTypeStatusComment
109:10:54:853AMPlasmaOk
209:23:47:400AMPlasmaOk
309:37:51:353AMPlasmaOk
410:02:11:120AMPlasmaOk
510:47:29:213AMPlasmaOk
611:13:43:900AMPlasmaOk
711:38:17:137AMPlasmaOk
812:02:30:807PMPlasmaOk
912:42:48:823PMTestBad
1012:59:30:110PMPlasmaOk
1101:33:10:093PMPlasmaOk
1201:56:55:407PMPlasmaOk
1302:22:50:267PMTestBad
1402:37:49:407PMPlasmaBadOH1 Power Supply Problem
1503:33:08:657PMPlasmaOk
1603:55:45:970PMPlasmaOk
1704:13:20:890PMPlasmaOk
1804:37:50:360PMPlasmaOk
1905:01:16:953PMPlasmaOk