Alcator C-Mod Run 1080304 Information

Miniproposals

Miniproposal: 448a

Date Filed: 1/24/2008

Title: Comparison of Small ELM regimes on C-Mod, MAST and NSTX (Rev A)

First Author: Rajesh Maingi

Session Leader: Jerry Hughes (shots 1-30)

Session Leader: Rajesh Maingi (shots 2-30)

Operators
Session leader(s):	Jerry Hughes,Rajesh Maingi
Physics operator(s):	Joseph Snipes
Engineering operator(s):	Andy Pfeiffer,Bill Parkin,Bill Byford

Engineering Operator Run Comment
MP448a: Comparison of Small ELM regimes on C-Mod, MAST and NSTX Session

Session Leader Plans

Entered: Mar 3 2008 07:07:31:977PM

Author: Jerry Hughes

DRAFT Session Leader run plan for 1080304
MP448a: Comparison of Small ELM regimes on C-Mod, MAST and NSTX

Setup:

**Overnight 10hr boronization required.
rmin/rdwell/rmax: 60/75/80 cm
tdwell/tsweep: 60/120 s
~70mtorr foreline pressure
EF4 current: 200 A
Post boronization ECDC in He, then D2

**Cryopump ready for first shot.

**ICRF: Require min. 3.5MW

**Critical diagnostics:
Edge TS
PCI, configured to monitor edge fluctuations, digitizing 0.6--1.2s
Reflectometry, 88GHz and below, digitizing beginning at 0.6s
Fast magnetics
Fast D-alpha diodes, fast cameras
200kHz digitization on soft xray arrays

Load shot 1080130007 (5.4T, 800kA, nl04=8e19, SSEP=-5mm).
Remove the ZCUR ramp between 1.1 and 1.2s. Instead hold the program
flat through flattop.

Shot plan:

1. Load shot 1080130007 (5.4T, 800kA, nl04=8e19, SSEP=-5mm). Remove
the ZCUR ramp between 1.1 and 1.2s. Instead hold the program flat
through flattop.

ICRF should be flat from 0.6 to 1.2s. Goal is 3.5MW. Bring up ICRF
to maximum stable level and reproduce the ELMing discharge of
1080130007. (2--3 shots)

2. Once fiducial ELMing discharge is established, decrease, then
increase, RXL shot by shot in increments of 2mm until the ELMs
disappear. If ELM window proves exceptionally narrow, obtain an
H-mode with small-amplitude cyclic RXL ramps about the "sweet
spot". (6--8 shots)

3. Scan current shot to shot to obtain q95 dependence: 750kA, 850kA
and 900kA. If ELM window proves exceptionally narrow, obtain an
H-mode with small-amplitude cyclic Ip ramps about 800kA. (3--5
shots)

4. Return to fiducial ELMing shot and lower Ip to 550kA. This should
give q95~7, matching that of NSTX shot 127304. Ramp ICRF from 3.5
to max available from 0.6 to 1.2s. and see if any ELMs show
up. Repeat at successively lower nl04 targets: 6e19, 4e19. (3--4
shots)

5. If we see small ELMs in step 4, then attempt some RXL ramps at
fixed ICRF power to address possible shape dependence. (3 shots)
Otherwise, proceed to step 6.

6. Try for some big ELMs. Load 1080213032 (psuedo-JFT-2M shape). Set
A-coils to standard error-field compensation. Establish ELMy H-mode and
then begin to vary shape.

First, ramp the lower X-point position to that of 1080130007, while
keeping upper boundary as in 1080213032. Document ELM behavior.

Second, morph the upper boundary toward that of 1080130007, while
holding the X-point as in 1080213032. Document ELM behavior.

Physics Operators Plans

Entered: Mar 3 2008 10:25:04:180PM

Author: Joseph Snipes

Physop Plan for 1080304
MP448a: Comparison of Small ELM regimes on C-Mod, MAST and NSTX

Session Leaders: R. Maingi, J Hughes
Physics Operator: J. Snipes

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

Power systems as on 1080130007
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 ENABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
fill NINJA with 10 psi D2 DISABLED

Enable gatevalves and shutters: ECE, VUV, Z-bolo

Torvac gatevalve toggle (yes/no): NO

**Overnight 10hr boronization required.
rmin/rdwell/rmax: 60/75/80 cm
tdwell/tsweep: 60/120 s
~60mtorr foreline pressure
EF4 current: 200 A
Post boronization ECDC in He, then D2
------------------------------
ECDC Parameters
------------------------------
gas and pressure: D2 at 2e-4 Torr
sweep: 44/45/103 cm
scan: 20/120 s

Vessel temperature: 35/35/35

**Cryopump ready for first shot.

**ICRF: Require at least 3.5MW

**Critical diagnostics:
Edge TS
PCI
Reflectometry
Fast magnetics
Fast D-alpha diodes
Fast digitization on soft xray arrays

Load shot 1080130007 (5.4T, 800kA, nl04=8e19, SSEP=-5mm)

Shot plan:

1. Bring up ICRF to maximum stable level and reproduce the ELMing
discharge of 1080130007. (2--3 shots)
2. Decrease, then increase, RXL in increments of 2mm until ELMs
disappear. (6--8 shots)
3. Current scan: 750kA, 850kA and 900kA (3--5 shots)
4. Next step to be determined.

Session Leader Summaries

Entered: Mar 6 2008 06:27:52:997PM

Author: Jerry Hughes

MP448a: Comparison of Small ELM regimes on C-Mod, MAST and NSTX

Session Leaders:
J. Hughes, R. Maingi(ORNL)
Additional contributors to run plan:
A. Hubbard, H. Meyer (UKAEA), J. Terry
Physics Operator:
J. Snipes

This run completed the C-Mod contribution to an ITPA joint experiment
intended to compare and contrast small ELM regimes on C-Mod and the
low aspect ratio tokamaks NSTX and MAST. Our previous experiment
(1080129, 1080130) suggested that the accessibility of small ELMs was
extremely sensitive to shaping and plasma current, perhaps even to the
point of being singular in triangularity and/or q95. The first part of
this run consisted of systematic scans of lower X-point position and
Ip, with the aim of pinning down the ELM operational window. Following
this we kept the options of a.) extending the experiment to q95~7 in
order to match safety factor of ELMy NSTX discharges made last week,
or b.) transitioning to an equilibrium run on 1080213 and assessing
the effects of shape variation on large ELMs.

An overnight boronization was carried out in preparation for this
H-mode run. The full-length baseline target discharge was established
by shot 5. This is a moderately shaped discharge biased slightly lower
null (SSEP ~ -5mm), with q95~4.7. The target had been found to be
nominally EDA, with access to small ELMs at ICRF power greater than
about 3MW. The RF operators coupled ICRF at 3.6MW by shot 6, and
forward power remained fairly steady in most of the day's remaining
shots. Many discharges were subject to large Mo (and at least once,
Fe) injections, which reduced the duration of high quality H-modes we
could use. On the bright side, discharges were often able to recover
from these radiating injections and reheat effectively, providing
broad dynamic scans in collisionality and edge beta. ELM pertubations
and filaments were diagnosed with fast H-alpha diodes, magnetics, edge
soft x-rays, fast ECE, PCI and reflectometry.

We achieved a fine scan of X-point positions (Shots 8, 9, 10, 13, 14,
17), decreasing RXL from the nominal baseline position in steps of
2--4mm for a total of -1.2cm shift. Contrary to our initial
impression, which was based on three shots from 1080130, ELMs proved
accessible across this range, thus establishing that the shaping
window is not singular. There were hints that the charcter of ELMs
changed as we varied the lower triangularity in this way; clarifying
this will require further analysis. Control room analysis indicates
that the most reliable metric for small ELM access is simply the
elevation of Te,PED above ~600eV. On shot 19 we made a change of several
cm to the lower X-point position, in order to match the X-point
position of our nominal large ELM shape, while at a more conventional
upper triangularity. No large ELMs were observed in this new shape, even
at substantial pedestal beta.

A current scan from 700kA to 850kA (Shots 20, 22, 24) revealed a
fairly narrow window in Ip (or q95) for obtaining these ELMs. It was
decided not to attempt a high q discharge, and we instead moved on to
load the JFT-2M-like shape at 800kA as a large ELM baseline. Shots
25--30 all began from this discharge and rounded out the day. Nice
large ELMs were obtained on shot 29 with 3.6MW of input ICRF. The
final shot was an attempt to ramp the lower triangularity down by
shifting RXL out by ~1cm. Unfortunately, a large injection blew away
our initial hot H-mode before the sweep could be executed, and we got
a null result.

All in all, we got a very thorough data set of small ELMs in a near DN
shape. Performance was fairly good, though hampered by injections. We
got some useful comparisons of discharges with varied shaping and
collisionality, which will help advance a portion of our H-mode
Baseline Integrated Scenario studies.

Physics Operator Summaries

Entered: Mar 4 2008 05:19:35:170PM

Author: Joseph Snipes

It was a good run. The machine ran quite well and so did the ICRF. There were a number of disruptions and impurity injections that made parameter scans somewhat irreproducible, but small ELMs were obtained on many shots and large ELMs were obtained on the later JFT-2M shaped plasmas as well. See the session leaders summaries for more details. There were 30 shots, 26 plasmas, and four fizzles. One of the fizzles was due to the cryopump warming up just before the shot. It seemed that Bz was increasing during the day and the last two shots were programmed with slightly lower (more negative) Bz to correct this. Otherwise, the startup was rather robust. A number of shape changes were made varying the lower triangularity up to and including the JFT-2M shape.
Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result
| 01 0.129 0.453 Plasma | 02 0.036 0.162 Plasma |
| 03 0.421 0.748 Plasma | 04 0.925 0.835 Plasma |
| 05 2.000 0.831 Plasma | 06 1.586 0.832 Plasma |
| 07 2.000 0.828 Plasma | 08 2.000 0.834 Plasma |
| 09 2.000 0.832 Plasma | 10 2.000 0.833 Plasma |
| 11 0.543 0.833 Plasma | 12 0.127 0.049 Fizzle |
| 13 2.000 0.831 Plasma | 14 2.000 0.832 Plasma |
| 15 0.138 0.053 Fizzle | 16 0.123 0.048 Fizzle |
| 17 1.164 0.830 Plasma | 18 2.000 0.832 Plasma |
| 19 1.998 0.823 Plasma | 20 2.000 0.736 Plasma |
| 21 0.729 0.749 Plasma | 22 2.000 0.781 Plasma |
| 23 0.822 0.915 Plasma | 24 2.000 0.881 Plasma |
| 25 1.987 0.831 Plasma | 26 1.987 0.830 Plasma |
| 27 1.967 0.828 Plasma | 28 0.154 0.052 Fizzle |
| 29 1.956 0.827 Plasma | 30 1.898 0.828 Plasma |

Date 1080304: 30 shots. 26 plasmas. 4 fizzles. 0 duds. 0 System Error.
(Plasma = Ip gt 60.0 kA Dud = H_alpha lt 0.20 V)
Total plasma duration: 40.69 s (exceeding -45 kA)

Session Leader Comments

Mar 4 2008 10:48:47:827AM 1080304003 Jerry Hughes Overdense. There is much concern over the density measurement, but
1.) the raw Thomson signals all look pretty normal
2.) the Te agree with ECE, and
3.) the n_e give n/n_g~1 at the time of disruption
So I tend to believe the TS.

Mar 4 2008 10:54:19:890AM 1080304004 Jerry Hughes Better fueling. Some RF.

Mar 4 2008 10:55:48:610AM 1080304005 Attempted reproduction of 1080130007, including 3.5 MW of power.
Got about 3 MW to 1.0 sec and then ramped up later in shot.
No sign of small ELMs here.

Mar 4 2008 10:56:26:547AM 1080304005 Jerry Hughes YAG2 has died on this shot. The low density measurements should be thrown out.
YAG1 is probably still okay.

Mar 4 2008 11:40:49:457AM 1080304006 Jerry Hughes RF power looks good. No strong ELM signatures. Try to lower target.

Mar 4 2008 11:38:36:050AM 1080304007 Jerry Hughes Got target density down from previous shot, but an injection causes a back
transition and results in an overfueled 2nd H-mode. This is followed by a
pump-out, Te rise, and the appearance of small ELMs. They are not of the
quality we seek, in terms of filamentary signatures.

Mar 4 2008 12:34:46:493PM 1080304007 Nice ELMy H-mode - small ELMs possibly between 1.0 and 1.2 sec.
Weak signature on SXR.

Mar 4 2008 12:07:58:853PM 1080304008 Jerry Hughes H-mode starts out very promisingly, with high Te,PED, Wp, small ELMs.
The injection comes at 0.76, kills the H-mode, and we start over again.
Should really have one that runs through. Moving on to scan of RXL.

Mar 4 2008 12:09:43:663PM 1080304009 Jerry Hughes RXL decreased by somewhere between 1 and 2 mm. ELms are still there, though
weaker. The H-mode is a bit more radiative than on shot 8, and the edge Te
is lower as a result. Continue RXL scan.

Mar 4 2008 12:37:35:617PM 1080304009 Maybe some small ELMs between 0.7 nas 0.78 sec - these are pretty subtle.

Mar 4 2008 12:15:09:307PM 1080304010 Good shot - injections lower. Got clear small ELM phase
from 0.9-1.1 sec.

Mar 4 2008 12:28:18:430PM 1080304010 Jerry Hughes RXL is decreased 2--3mm from shot 8 now. H-mode sustained through injection
(which happens at ~0.76s again). Some fuzzy Dalpha. If they are ELMs, they are
quite weak.

Mar 4 2008 12:28:54:650PM 1080304011 Jerry Hughes Disruption at 530ms.

Mar 4 2008 12:53:15:367PM 1080304012 Jerry Hughes Post-disruption fizzle.

Mar 4 2008 01:05:53:587PM 1080304013 Nice small ELMs from 1.0-1.2 sec.

Mar 4 2008 01:08:09:820PM 1080304013 Jerry Hughes Injection at 0.72s. 2nd H-mode is pretty good, with ELMs showing up as edge Te
rises above 600eV.

Mar 4 2008 01:45:32:150PM 1080304014 Jerry Hughes Two good ELMy H-modes. ELMs may be getting _more_ prominent as we decrease RXL,
contrary to expectations.
This shot put us over the top for a neutron alert.

Mar 4 2008 02:18:04:977PM 1080304017 Maybe some small ELMs between 0.65 and 0.75 sec, followed by
injections which cool the edge substantially.

Mar 4 2008 02:15:46:540PM 1080304018 Back to 007 - reference shot with lower density. No injections,
and had small ELMs from about 0.7 to 0.85 sec. But no more.

Mar 4 2008 02:52:38:260PM 1080304018 Jerry Hughes Nice shot. No killer injections. Lots of small ELMs, most significant when
Te,PED>600eV.

Mar 4 2008 02:40:10:633PM 1080304019 JFT-2M like Rx and Zx. Got several big impurity injections.
Concensus is to come back to this later as it entails shot development.

Mar 4 2008 02:58:35:493PM 1080304019 Jerry Hughes Made a big change in Xpoint location, and successfully matched JFT-2M x-point.
Unfortunately, the secondary xpoint moved too. We've got some Fe injections
now, and so I'm a little nervous about proceeding with this shape development.
Propose doing current scan from the fiducial is a better idea.
Next: return to 14 and lower Ip to 700kA.

Mar 4 2008 02:56:20:617PM 1080304020 Restore discharge with best ELMs - 014 - and drop Ip to 0.7 MA.
Big injection early - no clear sign of small ELMs.

Mar 4 2008 03:04:38:760PM 1080304020 Jerry Hughes 700kA. Recovery from injection is admirable. Pump-out is impressive, giving
Te,PED>800eV by end of H-mode. Small ELMs, if that's what they are, seem to occur
at Te,PED between 400 and 700eV. ne95 is relatively steady during the nl04 drop.

Mar 4 2008 03:28:09:447PM 1080304022 Jerry Hughes 750kA. EDA H-modes. No ELM signs.

Mar 4 2008 03:30:33:650PM 1080304023 Jerry Hughes 850kA. H-mode terminates early due to injection. Another brick kills the
discharge altogether. The strike is still hitting the floor.

Mar 4 2008 04:00:48:410PM 1080304024 0.85 MA with standard Rx from 007. Good - some small ELM signs
at various points. Looks like we are at the upper end of the
Ip range possible for small ELM window.

Mar 4 2008 04:07:23:533PM 1080304025 Jerry Hughes 800kA JFT-2M shape. Nice shot, though J-port needs to be re-tuned for next shot.
Lots of small ELMs and a handful of big ones.
Next: repeat with more power.

Mar 4 2008 04:07:40:050PM 1080304025 Nice shot with lots of small ELMs and a few big ones - in JFT2-M shape!

Mar 4 2008 05:02:07:280PM 1080304027 Jerry Hughes Still trying JFT-2M target, but delaying ICRF until after the xpoint is fully
pulled. That worked. Overall density rise is lower, Nice steady period of big
ELMs until about 1.1s.

Mar 4 2008 05:06:16:280PM 1080304029 Jerry Hughes Beautiful. ICRF is clean. Great looking ELMs. H-mode is rock-steady for 400ms.
Next: Jim Terry is calling it . . . Ramp x-point +1cm starting at .95s.

Mar 4 2008 05:25:49:560PM 1080304030 Jerry Hughes That shot looked great up until 0.92s. The injection is reported to be Fe.
The subsequent H-modes are fairly radiative and not ELM-prone. The programmed
X-pont scan seems to have worked though.

Physics Operator Comments

Mar 4 2008 09:30:18:953AM 1080304001 Joseph Snipes Shot 1: Copied shot 1080130007. Changed prepuff to 55 ms duration. This is a 5.4 T, 0.8 MA, 0.8 x 10^20 m^-2 near double null plasma in segment 3. Removed the ZCUR ramp at 1.2 s. Disrupted at 0.12 s. Hard x rays from 0.03 s. Not a good startup.

Mar 4 2008 09:42:28:937AM 1080304002 Joseph Snipes Shot 2: Raised prepuff by 5 ms to 60 ms duration. Fizzle!

Mar 4 2008 10:18:38:593AM 1080304003 Joseph Snipes Shot 3: Repeat with plasma. Disrupted at 0.415 s. Thomson shows the density reaches 2 x 10^20 m^-3. Clearly, the interferometer is not working properly but Irby claims that it is fine!

Mar 4 2008 10:36:56:437AM 1080304004 Joseph Snipes Shot 4: Tweaked RCUR in segment 3 around 0.37 s to be flat at 0.6585 m. Irby is working on the density feedback. Should be OK now. Disrupted at 0.92 s.

Mar 4 2008 10:49:11:280AM 1080304005 Joseph Snipes Shot 5: Reduced rate of rise of nl04 slightly to reach 8 x 10^19 m^-2 at 0.352 s rather than 0.302 s. Good shot.

Mar 4 2008 11:09:37:437AM 1080304006 Joseph Snipes Shot 6: Reduced prepuff by 5 ms to 55 ms duration. Good shot though it disrupted in rampdown at 1.58 s.

Mar 4 2008 11:32:29:303AM 1080304007 Joseph Snipes Shot 7: Reduced nl04 to 7 x 10^19 m^-2. Good shot.

Mar 4 2008 11:40:36:410AM 1080304008 Joseph Snipes Shot 8: Repeat. Good shot.

Mar 4 2008 11:57:15:900AM 1080304009 Joseph Snipes Shot 9: Set RXL to -0.002 m from 0.45 to 1.5 s. Good shot. Multiple H-modes.

Mar 4 2008 12:15:45:493PM 1080304010 Joseph Snipes Shot 10: Set RXL to -0.004 m from 0.45 to 1.56 s. Good shot.

Mar 4 2008 12:31:38:260PM 1080304011 Joseph Snipes Shot 11: Set RXL to -0.006 m from 0.45 to 1.56 s. Disrupted at 0.535 s.

Mar 4 2008 12:40:51:710PM 1080304012 Joseph Snipes Shot 12: Set RXL to reach -0.006 m starting at 0.55 s to check if the RXL change was responsible for the disruption. Fizzle!

Mar 4 2008 12:53:24:650PM 1080304013 Joseph Snipes Shot 13: Try again with no changes. Good shot.

Mar 4 2008 01:14:35:383PM 1080304014 Joseph Snipes Shot 14: Set RXL to -0.008 m from 0.55 to 1.56 s. RF timing was shifted by 0.2 s
to start at 0.8 s. Good shot. Injection shifted from 0.8 s to 1 s as well (as expected).

Mar 4 2008 01:22:42:337PM 1080304015 Joseph Snipes Shot 15: Set RXL to -0.012 m from 0.55 to 1.56 s. Fizzle!

Mar 4 2008 01:38:51:117PM 1080304016 Joseph Snipes Shot 16: Changed EF4 current from -1340 A to -1355 A. Fizzle again! Cryopump was not cold enough and released gas into the vessel preventing sustained breakdown.

Mar 4 2008 01:49:03:790PM 1080304017 Joseph Snipes Shot 17: Try again with the cryopump cold. Disrupted at 1.15 s.

Mar 4 2008 02:02:19:260PM 1080304018 Joseph Snipes Shot 18: Reloaded shot 7. Good shot.

Mar 4 2008 02:22:13:320PM 1080304019 Joseph Snipes Shot 19: Set RXL = -0.05 m and ZXL = 0.02 to attempt to get the lower triangularity of the JFT-2M shape from shot 1080213032. Good shot.

Mar 4 2008 02:49:59:570PM 1080304020 Joseph Snipes Shot 20: Reloaded shot 14. Then, set Ip = 0.7 MA. Problem with the State computer. Bosco will reboot. Short delay. Good shot.

Mar 4 2008 03:06:39:773PM 1080304021 Joseph Snipes Shot 21: Repeat. Disrupted at 0.72 s.

Mar 4 2008 03:12:30:337PM 1080304022 Joseph Snipes Shot 22: Raised Ip to 0.75 MA. Good shot.

Mar 4 2008 03:25:36:760PM 1080304023 Joseph Snipes Shot 23: Raised Ip to 0.85 MA. Disrupted at 0.81 s.

Mar 4 2008 03:39:13:900PM 1080304024 Joseph Snipes Shot 24: Reloaded shot 18. Raised Ip to 0.85 MA. Good shot.

Mar 4 2008 03:57:08:197PM 1080304025 Joseph Snipes Shot 25: Loaded shot 1080213032, which is a JFT-2M shape at 5.4 T, 0.8 MA, 5 x 10^19 m^-2 plasma in segment 2. Then, reloaded segment 1 from shot 24. Set B21_PROJ to zero. Good shot.

Mar 4 2008 04:09:41:873PM 1080304026 Joseph Snipes Shot 26: Enable LPI gate valve. Brock intends to fire a Li pellet at 1.7 s. Wukitch will attempt to improve the RF tuning and increase the ICRF power.
Good shot.

Mar 4 2008 04:22:41:060PM 1080304027 Joseph Snipes Shot 27: Repeat for better RF. Good shot.

Mar 4 2008 04:41:37:123PM 1080304028 Joseph Snipes Shot 28: Enabled argon gas valve and set the argon puff from 0.3 to 0.415 s. Reduced RCUR by 4 mm to increase the outer gap by 8 mm to 1.8 cm. Fizzle!

Mar 4 2008 04:54:18:717PM 1080304029 Joseph Snipes Shot 29: Changed EF4 current from -1340 A to -1355 A. Good shot.

Mar 4 2008 05:06:49:123PM 1080304030 Joseph Snipes Shot 30: Ramped RXL from 0.95 to 1.15 s from -0.05 to -0.04 m and then held it at -0.04 m until 1.5 s. Good shot.

Engineering Operator Comments

Shot Time Type Status Comment

1 09:22:04:290AM Plasma Ok

2 09:40:37:373AM Plasma Ok

3 09:56:31:970AM Plasma Ok

4 10:34:43:297AM Plasma Ok

5 10:47:14:983AM Plasma Ok

6 11:07:21:157AM Plasma Ok

7 11:20:54:593AM Plasma Ok

8 11:38:06:970AM Plasma Ok

9 11:54:44:430AM Plasma Ok

10 12:10:07:337PM Plasma Ok

11 12:25:43:163PM Plasma Ok PF breaker pulled due to plasma disruption

12 12:38:53:337PM Plasma Ok

13 12:51:24:773PM Plasma Ok

14 01:07:51:760PM Plasma Ok

15 01:20:44:493PM Plasma Ok

16 01:33:20:290PM Plasma Ok

17 01:46:52:790PM Plasma Ok

18 02:00:35:133PM Plasma Ok

19 02:20:20:510PM Plasma Ok

20 02:45:15:557PM Plasma Ok

21 02:57:58:900PM Plasma Ok

22 03:10:34:540PM Plasma Ok

23 03:23:21:210PM Plasma Ok

24 03:37:21:633PM Plasma Ok

25 03:55:23:743PM Plasma Ok

26 04:07:50:580PM Plasma Ok

27 04:20:29:700PM Plasma Ok

28 04:39:21:827PM Plasma Ok

29 04:51:55:590PM Plasma Ok

30 05:04:41:420PM Plasma Ok

System Availability

Mar 4 2008 09:21:54:807AM

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 fine. Midplane foils working fine, but need to fill tree with calibrations. 2D AXUV arrays are being digitized but need further debugging and calibration. Dec 19 2007 07:16PM (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 yes Working, moderate speed for now. Jan 02 2008 01:19PM (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 Starting on 1080227 All low freq. channels have been connected 50,60,75,88, 88l,88u and 110GHz. The variable freq. channel as well as the 140 have been connected and are being tested. Feb 27 2008 09:34AM (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 12 polychromators (#1~8,9,11,13,15), 1 laser. Density is calibrated for YAG2 on polychromator 1~8. YAG1 is not calibrated yet. Density calibration hasn't been performed on ploychromator 9~16. Feb 21 2008 11:19AM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma
TS - Edge yes System is working. Density is derived with last year's calibration, and should be good to within ~20%. Jan 18 2008 07:27AM (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 Jan 10 2008 11:41AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Mar 4 2008 10:48:47:827AM	1080304003	Jerry Hughes	Overdense. There is much concern over the density measurement, but 1.) the raw Thomson signals all look pretty normal 2.) the Te agree with ECE, and 3.) the n_e give n/n_g~1 at the time of disruption So I tend to believe the TS.
Mar 4 2008 10:54:19:890AM	1080304004	Jerry Hughes	Better fueling. Some RF.
Mar 4 2008 10:55:48:610AM	1080304005		Attempted reproduction of 1080130007, including 3.5 MW of power. Got about 3 MW to 1.0 sec and then ramped up later in shot. No sign of small ELMs here.
Mar 4 2008 10:56:26:547AM	1080304005	Jerry Hughes	YAG2 has died on this shot. The low density measurements should be thrown out. YAG1 is probably still okay.
Mar 4 2008 11:40:49:457AM	1080304006	Jerry Hughes	RF power looks good. No strong ELM signatures. Try to lower target.
Mar 4 2008 11:38:36:050AM	1080304007	Jerry Hughes	Got target density down from previous shot, but an injection causes a back transition and results in an overfueled 2nd H-mode. This is followed by a pump-out, Te rise, and the appearance of small ELMs. They are not of the quality we seek, in terms of filamentary signatures.
Mar 4 2008 12:34:46:493PM	1080304007		Nice ELMy H-mode - small ELMs possibly between 1.0 and 1.2 sec. Weak signature on SXR.
Mar 4 2008 12:07:58:853PM	1080304008	Jerry Hughes	H-mode starts out very promisingly, with high Te,PED, Wp, small ELMs. The injection comes at 0.76, kills the H-mode, and we start over again. Should really have one that runs through. Moving on to scan of RXL.
Mar 4 2008 12:09:43:663PM	1080304009	Jerry Hughes	RXL decreased by somewhere between 1 and 2 mm. ELms are still there, though weaker. The H-mode is a bit more radiative than on shot 8, and the edge Te is lower as a result. Continue RXL scan.
Mar 4 2008 12:37:35:617PM	1080304009		Maybe some small ELMs between 0.7 nas 0.78 sec - these are pretty subtle.
Mar 4 2008 12:15:09:307PM	1080304010		Good shot - injections lower. Got clear small ELM phase from 0.9-1.1 sec.
Mar 4 2008 12:28:18:430PM	1080304010	Jerry Hughes	RXL is decreased 2--3mm from shot 8 now. H-mode sustained through injection (which happens at ~0.76s again). Some fuzzy Dalpha. If they are ELMs, they are quite weak.
Mar 4 2008 12:28:54:650PM	1080304011	Jerry Hughes	Disruption at 530ms.
Mar 4 2008 12:53:15:367PM	1080304012	Jerry Hughes	Post-disruption fizzle.
Mar 4 2008 01:05:53:587PM	1080304013		Nice small ELMs from 1.0-1.2 sec.
Mar 4 2008 01:08:09:820PM	1080304013	Jerry Hughes	Injection at 0.72s. 2nd H-mode is pretty good, with ELMs showing up as edge Te rises above 600eV.
Mar 4 2008 01:45:32:150PM	1080304014	Jerry Hughes	Two good ELMy H-modes. ELMs may be getting _more_ prominent as we decrease RXL, contrary to expectations. This shot put us over the top for a neutron alert.
Mar 4 2008 02:18:04:977PM	1080304017		Maybe some small ELMs between 0.65 and 0.75 sec, followed by injections which cool the edge substantially.
Mar 4 2008 02:15:46:540PM	1080304018		Back to 007 - reference shot with lower density. No injections, and had small ELMs from about 0.7 to 0.85 sec. But no more.
Mar 4 2008 02:52:38:260PM	1080304018	Jerry Hughes	Nice shot. No killer injections. Lots of small ELMs, most significant when Te,PED>600eV.
Mar 4 2008 02:40:10:633PM	1080304019		JFT-2M like Rx and Zx. Got several big impurity injections. Concensus is to come back to this later as it entails shot development.
Mar 4 2008 02:58:35:493PM	1080304019	Jerry Hughes	Made a big change in Xpoint location, and successfully matched JFT-2M x-point. Unfortunately, the secondary xpoint moved too. We've got some Fe injections now, and so I'm a little nervous about proceeding with this shape development. Propose doing current scan from the fiducial is a better idea. Next: return to 14 and lower Ip to 700kA.
Mar 4 2008 02:56:20:617PM	1080304020		Restore discharge with best ELMs - 014 - and drop Ip to 0.7 MA. Big injection early - no clear sign of small ELMs.
Mar 4 2008 03:04:38:760PM	1080304020	Jerry Hughes	700kA. Recovery from injection is admirable. Pump-out is impressive, giving Te,PED>800eV by end of H-mode. Small ELMs, if that's what they are, seem to occur at Te,PED between 400 and 700eV. ne95 is relatively steady during the nl04 drop.
Mar 4 2008 03:28:09:447PM	1080304022	Jerry Hughes	750kA. EDA H-modes. No ELM signs.
Mar 4 2008 03:30:33:650PM	1080304023	Jerry Hughes	850kA. H-mode terminates early due to injection. Another brick kills the discharge altogether. The strike is still hitting the floor.
Mar 4 2008 04:00:48:410PM	1080304024		0.85 MA with standard Rx from 007. Good - some small ELM signs at various points. Looks like we are at the upper end of the Ip range possible for small ELM window.
Mar 4 2008 04:07:23:533PM	1080304025	Jerry Hughes	800kA JFT-2M shape. Nice shot, though J-port needs to be re-tuned for next shot. Lots of small ELMs and a handful of big ones. Next: repeat with more power.
Mar 4 2008 04:07:40:050PM	1080304025		Nice shot with lots of small ELMs and a few big ones - in JFT2-M shape!
Mar 4 2008 05:02:07:280PM	1080304027	Jerry Hughes	Still trying JFT-2M target, but delaying ICRF until after the xpoint is fully pulled. That worked. Overall density rise is lower, Nice steady period of big ELMs until about 1.1s.
Mar 4 2008 05:06:16:280PM	1080304029	Jerry Hughes	Beautiful. ICRF is clean. Great looking ELMs. H-mode is rock-steady for 400ms. Next: Jim Terry is calling it . . . Ramp x-point +1cm starting at .95s.
Mar 4 2008 05:25:49:560PM	1080304030	Jerry Hughes	That shot looked great up until 0.92s. The injection is reported to be Fe. The subsequent H-modes are fairly radiative and not ELM-prone. The programmed X-pont scan seems to have worked though.

Physics Operator Comments
Mar 4 2008 09:30:18:953AM	1080304001	Joseph Snipes	Shot 1: Copied shot 1080130007. Changed prepuff to 55 ms duration. This is a 5.4 T, 0.8 MA, 0.8 x 10^20 m^-2 near double null plasma in segment 3. Removed the ZCUR ramp at 1.2 s. Disrupted at 0.12 s. Hard x rays from 0.03 s. Not a good startup.
Mar 4 2008 09:42:28:937AM	1080304002	Joseph Snipes	Shot 2: Raised prepuff by 5 ms to 60 ms duration. Fizzle!
Mar 4 2008 10:18:38:593AM	1080304003	Joseph Snipes	Shot 3: Repeat with plasma. Disrupted at 0.415 s. Thomson shows the density reaches 2 x 10^20 m^-3. Clearly, the interferometer is not working properly but Irby claims that it is fine!
Mar 4 2008 10:36:56:437AM	1080304004	Joseph Snipes	Shot 4: Tweaked RCUR in segment 3 around 0.37 s to be flat at 0.6585 m. Irby is working on the density feedback. Should be OK now. Disrupted at 0.92 s.
Mar 4 2008 10:49:11:280AM	1080304005	Joseph Snipes	Shot 5: Reduced rate of rise of nl04 slightly to reach 8 x 10^19 m^-2 at 0.352 s rather than 0.302 s. Good shot.
Mar 4 2008 11:09:37:437AM	1080304006	Joseph Snipes	Shot 6: Reduced prepuff by 5 ms to 55 ms duration. Good shot though it disrupted in rampdown at 1.58 s.
Mar 4 2008 11:32:29:303AM	1080304007	Joseph Snipes	Shot 7: Reduced nl04 to 7 x 10^19 m^-2. Good shot.
Mar 4 2008 11:40:36:410AM	1080304008	Joseph Snipes	Shot 8: Repeat. Good shot.
Mar 4 2008 11:57:15:900AM	1080304009	Joseph Snipes	Shot 9: Set RXL to -0.002 m from 0.45 to 1.5 s. Good shot. Multiple H-modes.
Mar 4 2008 12:15:45:493PM	1080304010	Joseph Snipes	Shot 10: Set RXL to -0.004 m from 0.45 to 1.56 s. Good shot.
Mar 4 2008 12:31:38:260PM	1080304011	Joseph Snipes	Shot 11: Set RXL to -0.006 m from 0.45 to 1.56 s. Disrupted at 0.535 s.
Mar 4 2008 12:40:51:710PM	1080304012	Joseph Snipes	Shot 12: Set RXL to reach -0.006 m starting at 0.55 s to check if the RXL change was responsible for the disruption. Fizzle!
Mar 4 2008 12:53:24:650PM	1080304013	Joseph Snipes	Shot 13: Try again with no changes. Good shot.
Mar 4 2008 01:14:35:383PM	1080304014	Joseph Snipes	Shot 14: Set RXL to -0.008 m from 0.55 to 1.56 s. RF timing was shifted by 0.2 s to start at 0.8 s. Good shot. Injection shifted from 0.8 s to 1 s as well (as expected).
Mar 4 2008 01:22:42:337PM	1080304015	Joseph Snipes	Shot 15: Set RXL to -0.012 m from 0.55 to 1.56 s. Fizzle!
Mar 4 2008 01:38:51:117PM	1080304016	Joseph Snipes	Shot 16: Changed EF4 current from -1340 A to -1355 A. Fizzle again! Cryopump was not cold enough and released gas into the vessel preventing sustained breakdown.
Mar 4 2008 01:49:03:790PM	1080304017	Joseph Snipes	Shot 17: Try again with the cryopump cold. Disrupted at 1.15 s.
Mar 4 2008 02:02:19:260PM	1080304018	Joseph Snipes	Shot 18: Reloaded shot 7. Good shot.
Mar 4 2008 02:22:13:320PM	1080304019	Joseph Snipes	Shot 19: Set RXL = -0.05 m and ZXL = 0.02 to attempt to get the lower triangularity of the JFT-2M shape from shot 1080213032. Good shot.
Mar 4 2008 02:49:59:570PM	1080304020	Joseph Snipes	Shot 20: Reloaded shot 14. Then, set Ip = 0.7 MA. Problem with the State computer. Bosco will reboot. Short delay. Good shot.
Mar 4 2008 03:06:39:773PM	1080304021	Joseph Snipes	Shot 21: Repeat. Disrupted at 0.72 s.
Mar 4 2008 03:12:30:337PM	1080304022	Joseph Snipes	Shot 22: Raised Ip to 0.75 MA. Good shot.
Mar 4 2008 03:25:36:760PM	1080304023	Joseph Snipes	Shot 23: Raised Ip to 0.85 MA. Disrupted at 0.81 s.
Mar 4 2008 03:39:13:900PM	1080304024	Joseph Snipes	Shot 24: Reloaded shot 18. Raised Ip to 0.85 MA. Good shot.
Mar 4 2008 03:57:08:197PM	1080304025	Joseph Snipes	Shot 25: Loaded shot 1080213032, which is a JFT-2M shape at 5.4 T, 0.8 MA, 5 x 10^19 m^-2 plasma in segment 2. Then, reloaded segment 1 from shot 24. Set B21_PROJ to zero. Good shot.
Mar 4 2008 04:09:41:873PM	1080304026	Joseph Snipes	Shot 26: Enable LPI gate valve. Brock intends to fire a Li pellet at 1.7 s. Wukitch will attempt to improve the RF tuning and increase the ICRF power. Good shot.
Mar 4 2008 04:22:41:060PM	1080304027	Joseph Snipes	Shot 27: Repeat for better RF. Good shot.
Mar 4 2008 04:41:37:123PM	1080304028	Joseph Snipes	Shot 28: Enabled argon gas valve and set the argon puff from 0.3 to 0.415 s. Reduced RCUR by 4 mm to increase the outer gap by 8 mm to 1.8 cm. Fizzle!
Mar 4 2008 04:54:18:717PM	1080304029	Joseph Snipes	Shot 29: Changed EF4 current from -1340 A to -1355 A. Good shot.
Mar 4 2008 05:06:49:123PM	1080304030	Joseph Snipes	Shot 30: Ramped RXL from 0.95 to 1.15 s from -0.05 to -0.04 m and then held it at -0.04 m until 1.5 s. Good shot.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:22:04:290AM	Plasma	Ok
2	09:40:37:373AM	Plasma	Ok
3	09:56:31:970AM	Plasma	Ok
4	10:34:43:297AM	Plasma	Ok
5	10:47:14:983AM	Plasma	Ok
6	11:07:21:157AM	Plasma	Ok
7	11:20:54:593AM	Plasma	Ok
8	11:38:06:970AM	Plasma	Ok
9	11:54:44:430AM	Plasma	Ok
10	12:10:07:337PM	Plasma	Ok
11	12:25:43:163PM	Plasma	Ok	PF breaker pulled due to plasma disruption
12	12:38:53:337PM	Plasma	Ok
13	12:51:24:773PM	Plasma	Ok
14	01:07:51:760PM	Plasma	Ok
15	01:20:44:493PM	Plasma	Ok
16	01:33:20:290PM	Plasma	Ok
17	01:46:52:790PM	Plasma	Ok
18	02:00:35:133PM	Plasma	Ok
19	02:20:20:510PM	Plasma	Ok
20	02:45:15:557PM	Plasma	Ok
21	02:57:58:900PM	Plasma	Ok
22	03:10:34:540PM	Plasma	Ok
23	03:23:21:210PM	Plasma	Ok
24	03:37:21:633PM	Plasma	Ok
25	03:55:23:743PM	Plasma	Ok
26	04:07:50:580PM	Plasma	Ok
27	04:20:29:700PM	Plasma	Ok
28	04:39:21:827PM	Plasma	Ok
29	04:51:55:590PM	Plasma	Ok
30	05:04:41:420PM	Plasma	Ok