Alcator C-Mod Run 1101208 Information

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Miniproposals
Miniproposal:619
Date Filed: 9/30/2010
Title:Effects of ICRF and LH power on SOL density pofiles
First Author:Cornwall Lau
Session Leader:Cornwall Lau (shots 19-30)
Miniproposal:628
Date Filed:12/1/2010
Title:Off-axis ICRF ITBs in I-mode Target Plasmas
First Author:John Rice
Session Leader:John Rice (shots 1-18)

Operators
Session leader(s):John Rice,Cornwall Lau
Physics operator(s):Ron Parker
Engineering operator(s):Bill Parkin,Sam Pierson,Gary Dekow

Engineering Operator Run Comment
MP 619: Effects of ICRF and LH on SOL density profiles.

Session Leader Plans
Entered: Dec 7 2010 02:45:39:987PM
Author: John Rice
load 1100204016, 5.83 T, 1.31 MA, nl04 = 0.9, 3.5 MW ICRF, USN.
argon enabled. Hirex-Sr GV open.
request CXRS, PCI, reflectometer, TS

establish robust I-mode plasma.
reduce Bt to 5.4 T, repeat
reduce Bt to 4.7 T, repeat (may require lower ICRF power)
increase Bt to 6.1 T, repeat

evaluate, possibly lower density and current and repeat Bt scan
Entered: Dec 8 2010 10:16:03:763AM
Author: Cornwall Lau
This is MP 619: Effects of ICRF and LH on SOL density profiles.

This is a continuation in understanding the density profiles due to ICRF and LH. This section will focus on the effects due to high ICRF power in both L and H-modes. This run is scheduled for the second half of the day.

Gas request: D2. No boronization and standard ECDC.

ICRF: E and J requested at maximum power
LH: No, although the LH launcher needs to be moved in to .1mm.
Cryopump: No
DNB: Not required, but can be used.

Requested diagnostics: Thomson scattering, LH langmuir probes
Desired diagnostics: emissive/ion sensitive probes

Run plan:

Part a) Outer gap scan (1 shot). Load shot 1101207007. Change field to 5.1T.

Part b) H-modes (5 shots) Load 1101020001. Change current to 1MA.
Power scan at high E/J power. (E will run at 1/1.5/.5 from .6 to .9 and J will run from 2/2.5/1 from 1.1 to 1.4). If H-modes are tough at low powers, move on to current scan at highest powers possible
Current scan. Choose one of above case and do at .8 and 1.2MA.

Part c) L-modes (3 shots). Load 1101116024. Note this is a cryopump startup. Raise RF power to 1.5MW with E and 2MW with J
Do center, top, middle horn. Cell access will be required 3 times to change the horn location.

Part d) (1 shot) Density ramp of with only E antenna. Load one shot in part c), but demand nl04 like 1100818001

Part e) (2 shots). If have time, do a current scan of part c) at .8 and 1.2MA.

Part f) (2 shots) If have even more time, go back to part b) and raise/lower target density.
Entered: Dec 8 2010 04:23:00:550PM
Author: Amanda Hubbard
Finally a good rampdown I can use for xcal at 1.65 mm.

print, xcal2_120825
0.00000 2.36922 3.21639 3.37984 3.83079
2.80987 3.61574 0.00000 2.55279 1.64242
2.62066 4.85518 1.72043 2.35640 6.96557
0.00000 1.43040 1.58946 1.12613

Appply for appropriate shots today and yesterday.

Physics Operators Plans
Entered: Dec 7 2010 04:49:14:933PM
Author: Ron Parker
Physop Plan for 1101208

Session Leader: J. Rice (AM), C. Lau (PM)
Physics Operator: R. Parker
MP628: Off-axis ICRF ITBs in I-mode Target Plasmas (AM)
MP619: Effects of ICRF and LH power on SOL density pofiles (PM)

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

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

Power systems as on:1101207005

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 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 gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus
Leave z-bolo shutter as is (should be open)

Torvac gatevalve toggle (yes/no): no

Boronization(yes/no): no
Overnight ECDC (yes/no): YES
ICRF(yes/no): yes
LH(yes/no): No
Cryopump (yes/no): YES
DNB (yes/no): YES if available

Vessel temperature: 35/35/35

------------------------------
ECDC Parameters
------------------------------
gas and pressure: D2 at 2e-4 Torr
sweep: 44/45/103 cm
scan: 20/120 s

Run Plan: Establish I-Mode plasma, starting with shot 1100204016 follow SL plan

Session Leader Summaries
Entered: Dec 8 2010 01:28:10:290PM
Author: John Rice
I-modes were obtained over a range of magnetic fields from 4.2 to 6.3 T, with the ICRF resonance
on both the HFS and LFS. There was no evidence for any ITB formation below 4.6 T or above 6.1 T,
where ITBs had previously been observed with favorable drift and in EDA H-mode plasmas. No density peaking
or drop in core rotation was observed, so for these target conditions, there was no ITB formation
evolving out I-modes with off-axis ICRF. There was some evidence for even flatter density and temperature
profiles than normal.
Entered: Dec 8 2010 05:12:27:447PM
Author: Cornwall Lau
The half run day was somewhat difficult, but reasonable data was achieved. The first hour of the day was delayed due to a blown fuse; it took the engineering team a while to track the problem down. The rest of the day was plagued with disruptions, especially at 1MA and 1.2MA. Ron eventually pinpointed it to a vertical disruption, due to too high of an elongation. Raising the lower x point by 2cm seemed to help a bit. In the future, other solutions could include increasing the inner gap and reducing zcur.

Good shots were 25,28,29, which were identical except for having the top,bottom, and middle horn look at each of them. An ability to analyze the asymmetries in the density profiles could be achieved.

Shots 30 and 19 achieved a large density, and outer gap scan with E antenna, respectively. This is worth a further look. Shot 19 can be compared with results from yesterday.

Shots 20,21,22,23 had a ICRF power scan in ELM-free H-modes for E and J antenna. Differences may be seen.

Further analysis will need to be done.




Physics Operator Summaries
Entered: Dec 8 2010 05:37:01:783PM
Author: Ron Parker
A somewhat difficult run day, particularly for high current (G.E. 1 MA) shots.

The first "half" of the run was exploratory, investigating whether it would be possible to produce ITB's in I-mode shots. The first 18 shots were devoted to this study, and by and large the machine performed as programmed by the PCS. As the field was lowered with fixed current, decreasing q, some difficulty with early disruptions was encountered. This was fixed by increasing the early gas programming, which tends to prevent hollow current profiles from forming. However, at 4.3 T, the current had to be reduced from 1.1 MA to 1.0 MA, in order to avoid a q ~ 3 disruption. Overall from the Physop point of view, the machine ran well for this part of the run, well enough to accomplish the physics objectives.

The second part of the run had the objective of exploring the SOL and divertor density profile with ICRH using the X-Mode reflectometer. A total of 12 shots were attempted for this part of the run. This part of the run was shortened by a ~ 1 hour delay caused by failure of the TMX power supply contactor to close. The problem was found to be a blown fuse. Once replaced the rest of the run proceeded without incident. Again, some difficulty with disruptions was encountered with 1 MA shots, even though the field was the nominal 5.4 T. Fortunately the disruptions occurred just at the beginning of rampdown, so they were sufficient for acquiring data. It appeared that the disruptions were due to vertical instability with n/n_crit greater than 1. The take home lesson here is to look more closely at requested shots before loading them, particularly the elongation and decay index. There was one try at 1.2 MA, which disrupted. Presumably this could have been tuned, but the SL leader decided to move on in the interests of time. The remaining 3 shots in the run featured 800 kA plasmas which ran full length.

Scorecard: 30 Plasma Attempts, 1 No power shot, 22 either full length or into rampdown (or nearly so), 6 early disruptions and 1 dud due to a pulled breaker.


Session Leader Comments
Dec 8 2010 09:13:38:047AM1101208001John Riceload 1100817013
no power
Dec 8 2010 09:26:42:413AM1101208002John Riceload 1100817013
1.12 MA, 5.68 T
Dec 8 2010 09:35:19:453AM1101208003John Ricequasi fizzle
5.68 T
Dec 8 2010 09:50:45:230AM1101208004John Ricebrief H-mode
5.68 T
Dec 8 2010 10:01:55:733AM1101208005John Ricelower ICRF power, 3 MW
good I-mode
5.4 T
Dec 8 2010 10:18:54:177AM1101208006John RiceI-mode

4.8 T
Dec 8 2010 10:32:40:983AM1101208007John Ricedisrupted

4.7 T
Dec 8 2010 10:44:52:100AM1101208008John Ricedisruption

4.7 T
Dec 8 2010 11:00:23:840AM1101208009John RiceI-mode

4.7 T
Dec 8 2010 11:12:49:823AM1101208010John RiceI-mode, brief H-mode

4.5 T
Dec 8 2010 11:28:03:553AM1101208011John RiceI-mode, brief H-mode.
no sign of ITB

4.4 T
Dec 8 2010 11:41:03:010AM1101208012John RiceI-mode, H-modes

4.4 T
Dec 8 2010 12:00:46:203PM1101208013John Ricedisrupted

4.3 T
Dec 8 2010 12:14:21:787PM1101208014John Rice1.0 MA
I-mode

4.3 T
Dec 8 2010 12:28:54:343PM1101208015John Rice1.0 MA
I-mode

4.2 T
Dec 8 2010 12:44:06:970PM1101208016John Rice1.1 MA
brief H-mode
I-mode
6.0 T
Dec 8 2010 12:59:09:003PM1101208017John Rice1.1 MA
weak I-mode

6.2 T
Dec 8 2010 01:16:04:950PM1101208018John Rice1.1 MA
brief H-modes
no I-mode

6.3 T
Jan 26 2011 08:39:58:010AM1101208019Cornwall LauFirst shot for my run plan.

Attempt: Repeat 1101207007 except with 5.1T


Result: Good. Again, the ICRF made it all the way in this outer gap scan. The loading resistance on E antenna surprisingly did not change much even with this large change of an outer gap. Analysis will need to be done.

Update: Thomson scattering is available here, although it's not in w_dens. It looks reasonable compared to the reflectometer data.


Next: Moving on to potential H-modes. Loading 1101020001. Change to 1MA. E at 1MW from .6 to .9s and J at 2MW from 1.1 to 1.4s.
Dec 8 2010 02:52:18:003PM1101208020Cornwall LauAttempt: Load 1101020001, increase current to 1MA. E at 1MW from .6 to .9, J at 2MW from 1.1 to 1.4.


Result: Good. The attempt at H-mode was successful for J, but not for E. Plasma also disrupted at 1.44, after both ICRF pulses. Raising the density may help H-mode access, and possibly get rid of the disruption, if it is a locked mode.


Next: Increase nl04 demand to .6 from .4. Increase ICRF power to 1.5 MW for E and 2.5MW for J.


Dec 8 2010 03:03:47:027PM1101208021Cornwall LauAttempt: nl04 was increased to .6. Power from E and J were increased.


Result: Transient H-modes in E. H-modes in J. Disruption after J ramped down. Is J causing the disruption here?

Next: Change E power to 1.25MW and J to 1.5MW.
Dec 8 2010 03:17:07:350PM1101208022Cornwall LauAttempt: Change E power to 1.25MW and J to 1.5MW.


Result: H-mode in J, transient H-modes in E. Disrupted in rampdown this time.

Next: Start the current scan. Current will go to 800kA. E and J both at 1.5MW.
Dec 14 2010 04:43:30:650PM1101208023Cornwall LauAttempt: Switch to 800kA. Change E power to 1.5MW and J to 1.5MW.


Result: still was at 1MA (operator error?). The H-modes do look reasonably decent. Steve pointed out the hysteresis on the loading on E during the L-H and H-L transition around. It's worth a look.

RF power does not affect profiles that much in H-modes it seems. Seems to correlate better with pedestal height

Next: Now switch to 800kA.
Dec 8 2010 03:49:31:200PM1101208024Cornwall LauAttempt: Redo what was supposed to happen in 23


Result: No plasma

Next: Repeat. Lower the elongation a bit (see operator plan for change in zxl). Ron thinks a vertical instability was causing the previous disruption issue.
Dec 11 2010 10:17:13:447PM1101208025Cornwall LauAttempt: Redo what was supposed to happen in 23


Result: good and no disruption. changing the zxl did seem to help. Some transient H-modes in both E and J antenna

Next: Try 1.2 MA.


Dec 8 2010 04:14:44:043PM1101208026Cornwall LauAttempt: move to 1.2MA


Result: disruption after a bit of E ICRF. I probably got a bit of data.

Next: let's keep this shot in mind and move on to the USN case. Time is ticking. Load 1101116024, with E at 1MW, J at 1.5MW.
Dec 8 2010 04:26:11:213PM1101208027Cornwall LauAttempt: Load 1101116024, with E at 1MW, J at 1.5MW.


Result: disruption

Next: redo shot 25 with bottom horn.
Dec 11 2010 10:17:21:437PM1101208028Cornwall LauAttempt: redo shot 25 only with bottom horn since it was the only good shot of the day.


Result: looks very identical to 25

Next: repeat. switch to top horn.


Dec 14 2010 04:42:51:583PM1101208029Cornwall LauAttempt: repeat. switch to top horn.


Result: looks good

Seems to be a up down asymmetry when RF is turned on (and without). It seems that the bottom horn has higher density during ohmic, but application of RF drives density upwards, as compared to the ohmic density profiles.

Speculation is that this is ErxB due to RF sheaths (upwards???), as well as ExB and ion diamagnetic drift (ohmic and downwards for both)

Next: density scan. change 1100818001 to 800kA.


Dec 8 2010 05:05:32:063PM1101208030Cornwall LauAttempt: density scan for LSN shot. change 1100818001 to 800kA.


Result: result (loading) looked interesting before the H-mode and after the H-mode. Definitely worth a look.

Next: Last shot of the day.

Physics Operator Comments
Dec 8 2010 08:51:58:917AM1101208001Ron ParkerGood morning, nice day, a bit chilly.

Contrary to SL plan, we are starting with shot 1100817013 in Segment 2, using a startup from yesterday, 1101207005, but with pg4 set at 50 ms since cryo will be on.
Dec 8 2010 09:08:05:250AM1101208001Ron ParkerUnfortunately, a no-power shot. Cap bank power supplies weren't on.
Dec 8 2010 09:28:46:887AM1101208002Ron ParkerShot 2 ran into rampdown with programmed current, density.

RF had a few trips, T_e(0)~ 4 keV.

No PCS changes for next shot.
Dec 8 2010 09:39:53:460AM1101208003Ron ParkerShot 3 started up well, reached 150 kA and quenched.

Try again
Dec 8 2010 09:55:55:063AM1101208004Ron ParkerAfter elaborate tuning, shot 4 ran full length with nice rampdown.

There was an early, transient H-mode, folllowed apparently by an extended I-mode.

Next: Flattop field reduced to 5.4 T from 5.67 T as in previous shots.
Dec 8 2010 10:07:00:153AM1101208005Ron ParkerAnother full lengther.

For the next trick, we'll lower field to 4.8 T (133 kA TF current) keeping all other PCS settings the same.
Dec 8 2010 10:28:17:273AM1101208006Ron ParkerAnother full length shot, although the current rise is not as smooth as one would like.

However, the I-mode part of the discharge seems unaffected, so we won't try to fix the earlier current rise issues.

Next: B_T lowered from 4.8 T to 4.7 T.
Dec 8 2010 10:37:41:993AM1101208007Ron ParkerEarly disruption, at 0.57 s.

It may take a shot or two to recover.
Dec 8 2010 10:47:32:330AM1101208008Ron ParkerAnother early disruption. A suggestion has been made to increase the early gas, so we'll try it for the next shot.
Dec 8 2010 11:07:46:137AM1101208009Ron ParkerShot 9 ran full length. apparently ramping the density up faster helped.

Next: Same discharge, B_T = 4.5 T.
Dec 8 2010 11:16:41:240AM1101208010Ron ParkerShot 10 made it throough rampdown.

A brief H-mode, then I-mode.

Next: B_T lowered to 4.4 T (flirting with danger)
Dec 8 2010 11:33:05:983AM1101208011Ron ParkerShot 11 ran full length at 4.4 T.

Next: Same shot, 4.3 T.
Dec 8 2010 11:47:28:433AM1101208012Ron ParkerShot 12 ran full length, but field was still 4.4 T, not 4.3 T.

Redo the shot, lower B_T to 4.3, assuming 150 kA produces 5.4 T.
Dec 8 2010 12:03:12:090PM1101208013Ron ParkerShot 13 disrupted early, t = 0.52 s

Next: reduce current to 1.0 MA (from 1.1 MA)
Dec 8 2010 12:18:13:270PM1101208014Ron ParkerShot 14 ran full length, albeit at 1.0 MA
Next: Same shot, but field lowered from 4.35 to 4.20
Dec 8 2010 12:38:43:733PM1101208015Ron ParkerShot 15 ran full length at 4.2 T, 1 MA

Next: Filed will ramp to 6.3 T, I_p = 1.1 MA
Dec 8 2010 12:48:28:273PM1101208016Ron ParkerShot ran full length but field was set to engineering limit of 165 kA.
Next: Increase engineeering limit on field raised to 180, programmed to 175 kA on PCS.
Dec 8 2010 01:03:21:220PM1101208017Ron ParkerShot 17 ran full length, but field was only 6.2, not 6.3 T

Repeat with field increase to 6.3.
Dec 8 2010 01:26:09:073PM1101208018Ron ParkerShot 18 ran full length at 6.3+ T.

This completes the first part of today's run. We are now switching to MP619, and loading shot 1101207007 with field reduced to 5.1 T for the first shot.
Dec 8 2010 01:30:32:160PM1101208018Ron ParkerDelay, hopefully short, due to contactor not closing in TMX supply in power room.
Dec 8 2010 02:06:43:500PM1101208018Ron ParkerDelay seems to be longer than expected. Nearly 1 hour so far
Dec 8 2010 02:24:14:737PM1101208018Ron ParkerProblem was traced to a blown fuse, which has just now been replaced.

We should be ready for the first shot in this part of the run momentarily.
Dec 8 2010 02:46:13:190PM1101208019Ron ParkerShot 19 ran, not full length but sufficient for data collection purposes.

NexT: Load shot 1101020001 from SL's run plan, increasing current to 1 MA.
Dec 8 2010 02:51:08:930PM1101208020Ron ParkerShot 20 disrupted at 1.436 s during H-mode caused by heating from J antenna.
Dec 8 2010 03:03:00:593PM1101208021Ron ParkerShot 21 was similar to shot 20, disrupting at ~ 1.4 s during heating pulse from J antenna.

Next: Same, but J power will be lowered to 1.5 MW.
Dec 8 2010 03:24:02:127PM1101208022Ron ParkerShot 22 just made it to rampdown, then disrupted.

Next: Moving on, lower current to 800 kA.
Dec 8 2010 03:37:57:187PM1101208023Ron ParkerOOPs, shot 23 was still a 1 MA shot -- and it still disrupted at the beginnning of rampdown.

Next: Try again for 800 kA.


Dec 8 2010 03:44:50:317PM1101208024Ron ParkerA dud, EF1 commutated early.
Dec 8 2010 03:51:06:850PM1101208024Ron ParkerDisruptions seem to be caused by vertical instability. The elongation is presumably too high; we'll try to reduce it by raising ZXL by 2 cm.
Dec 8 2010 03:59:47:727PM1101208025Ron ParkerShot 25 ran full length, but at 800 kA (as programmed)

Next: increase current to 1.2 MA.


Dec 8 2010 04:14:22:310PM1101208026Ron ParkerShot 26 disrupted early at 1.2 MA. Instead of trying to tune it, SL has decided to move on to SN shot: 1101116024
Dec 8 2010 04:27:53:077PM1101208027Ron ParkerShot 27 disrupted early, again vertically unstable.

We are now returning to the last good shot, 1101208025
Dec 8 2010 04:45:26:653PM1101208028Ron ParkerShot 28 reproduced shot 25, as was intended, and was full length.
Dec 8 2010 05:01:07:560PM1101208029Ron ParkerShot 29 ran full length
Dec 8 2010 05:01:51:587PM1101208030Ron ParkerShot 30 ran full length..

Engineering Operator Comments
ShotTimeTypeStatusComment
109:04:35:603AMPlasmaBadCap banks did not charge, spellmans off
209:19:30:660AMPlasmaOk
309:32:21:757AMPlasmaOk
409:44:50:233AMPlasmaOk
509:57:36:910AMPlasmaOk
610:13:24:820AMPlasmaOk
710:29:55:150AMPlasmaOk
810:42:35:227AMPlasmaOk
910:55:23:053AMPlasmaOk
1011:08:13:907AMPlasmaOk
1111:24:03:177AMPlasmaOk
1211:37:40:243AMPlasmaOk
1311:58:07:970AMPlasmaOk
1412:10:39:130PMPlasmaOk
1512:23:49:103PMPlasmaOk
1612:39:44:663PMPlasmaOk
1712:55:10:800PMPlasmaOk
1801:12:31:943PMPlasmaOk
1902:28:32:227PMPlasmaOk
2002:42:17:750PMPlasmaOk
2102:57:31:697PMPlasmaOk
2203:10:15:030PMPlasmaOk
2303:28:57:703PMPlasmaOk
2403:41:29:040PMPlasmaBadEF1U Commutation Switch Miss Fired
2503:53:58:950PMPlasmaOk
2604:06:32:200PMPlasmaOk
2704:19:02:700PMPlasmaOk
2804:31:28:707PMPlasmaOk
2904:44:04:173PMPlasmaOk
3004:57:23:960PMPlasmaOk

System Availability
Dec 8 2010 09:04:19:540AM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDnosecured - tagged outJun 02 2008 11:03AM (sears)Joe SnipesActive MHD Antennasears,snipes
BESyesBES system is onlineOct 21 2010 11:33AM (bespam)Bill RowanBeam Emission Spectroscopybespam,liao,rowan
Bolometersyes2pi (D+F) working. All midplane and off-midplane diode arrays working except WB1AX. Midplane foils calibrated and PRAD_MAIN is being filled. Divertor/Ledge foils not yet ready.Jul 15 2010 08:27AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
Boronizationyes Nov 16 2010 02:36PM (dekow)Jim IrbyBoronizationdekow,irby
CNPAyesMultiple channel CNPA availableOct 21 2010 07:11PM (parker)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertornoShut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged.Apr 06 2010 10:51AM (labombard)Brian LaBombardUpper Divertor Cryopumpirby,labombard
CXRSyesWide-view CXRS system is onlineOct 21 2010 11:33AM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,liao,rachmcd,rowan
D Alphayes\ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not availableJul 01 2009 09:45AM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayessystem is aligned; new calibrations (relative brightness and position) not yet implementedJun 29 2010 10:27AM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationyesoperational, but turned offNov 03 2009 04:59PM (granetz)Robert GranetzGas Jetgranetz,whyte
Divertor IRno Mar 06 2007 10:50AM Glen WurdenDivertor IR Digital Videogwurden,terry
Divertor IR Spectroscopyno Mar 06 2007 10:51AM Glen WurdenDivertor IR Spectroscopygwurden,terry
DNBnoin test mode onlyNov 03 2009 05:01PM (granetz)Robert GranetzDiagnostic Neutral Beamdterry,granetz,gung
ECDCyesOperationalJun 26 2010 09:28PM (irby)Jim Irby2.45 GHz, 3 kW, discharge cleaning systemdekow,irby,pfeiffer
FRC-ECEyesAll channels working and calibrated.Oct 27 2010 03:41PM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesGauges are operational.Jun 28 2010 08:02PM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
Glow DischargenoPlugs for Power Supply and Controls have been unplugged and red tagged making system safe for In-Vessel Access.Apr 05 2010 11:18AM (dekow)Jim Irby1 kV, 5 A, glow discharge systemdekow,dterry,irby
GPCyesOperational.Jul 28 2009 04:23PM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels operational. Oct 22 2010 11:46AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPIyesThe Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry)Jim TerryGas Puff Imagingterry,zweben
H/Dyesoperating normallyJun 29 2010 10:26AM (marmar)Earl MarmarH/D Ratiomarmar
HEATyes Jun 26 2010 11:19PM (dekow)Gary Dekow - Machine Heaters -burke,dekow
Hirex JryesHirex-Jr has been installedJun 28 2010 03:36PM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesSystem installed and aligned. Inverted profiles are still not available.Jul 22 2010 08:41AM (ypodpaly)John RiceHigh Resolution X-Rayince,rice,ypodpaly
HXRyes32 Channels operationalOct 23 2010 01:41PM (parker)Ron ParkerHard X-Ray Arrayfaust,parker,schmidt
ICRF D-Antennayessystem checked out ok on 11006728. Jun 28 2010 04:57PM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayessystem checked out ok on 1100628Jun 28 2010 04:57PM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayessystem checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin)Steve WukitchJ-port antennawukitch,ylin
Laser Blow-Offyesoperational and testedJul 20 2010 04:42PM (g)Martin GreenwaldImpurity Injection Systemg,nthoward
Lower HybridyesLH working. New directional couplers installed at input to each klystron.Oct 21 2010 11:42AM (dterry)Ron ParkerLower Hybriddterry,parker,wallaceg
Lower Hybrid Reflectometeryes50GHz: up-, 60 GHz up- and down-Oct 21 2010 11:31AM (sgbaek)Arturo DominguezLower Hybrid Reflectometerdominguez,marmar,parker,sgbaek
Lower Hybrid SOL reflectometeryesdifferential phase (profile) working since 8/27/2010. full phase (fluctuations + profile) is not. If put on a miniproposal, please request LH launcher to be moved inOct 05 2010 11:26AM (cornwall)Cornwall LauLower Hybrid SOL reflectometercornwall,wukitch,ylin
LPInoBeam line removedMay 30 2008 02:09PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphanoWB4LY and LLY working but not during ICRF. WB1LY not attached due to pickup problems. LYMID attached but have profile problems.Aug 24 2010 09:17AM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesSpectra being collected and tree filled. Wavelength scan is broken so fixed on the Mo XXXI and XXXII lines.Jul 15 2010 08:28AM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Oct 22 2010 11:46AM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyesGauges are operationalJun 28 2010 08:02PM (labombard)Brian LaBombardBaratron pressure gaugeslabombard
MLPnoSystem is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it.Jul 14 2009 09:20PM (labombard)Brian LaBombardMirror Langmuir Probe Electronics Systemlabombard
MSEnoAs of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB.Jun 10 2009 10:34AM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesAll systems are on and functionalJun 29 2010 12:56PM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesPMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03Jun 26 2010 09:21PM (irby)Jim IrbyX-Ray/Neutron Detectors at K-Horirby
NINJAnoCapillaries tested in-vessel.Jun 28 2010 08:08PM (labombard)Brian LaBombardNINJA gas pufflabombard,terry
PCInoDown due to broken laser shutter.Nov 22 2010 10:44AM (ntsujii)Miklos PorkolabPhase Contrast Imagingarai,ennever,ntsujii,porkolab
Penning GaugesnoHigh voltage power supplies are turned off, waiting for work at A-port horizontal to be finished.Jun 28 2010 08:07PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational.Jul 01 2009 09:46AM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoSafe for Machine EntrySep 14 2007 12:17PM (irby)Jim IrbyC-Mod Polarimeterirby
Power - Alternator Air Switchyes Jun 26 2010 11:19PM (dekow)Gary Dekowfeeds all the other suppliescochran,dekow,dterry,irby
Power - PEIyes Jun 26 2010 11:19PM (dekow)Gary DekowPEI Systemcochran,dekow,dterry,irby
Power - TMXyes Jun 26 2010 11:19PM (dekow)Gary DekowEf2s,. EFCs and A-Coilsbyford,cochran,dekow,dterry,irby
Power Systemsyes Jun 26 2010 11:20PM (dekow)Jim IrbyC-Mod Magnet Suppliesbyford,cochran,dekow,dterry,irby
Probe Array - ISDyesOperational.Jun 28 2010 08:03PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesOperational.Jun 28 2010 08:03PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesF and J outer divertor probes are operational.Jun 28 2010 08:04PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyesOperational, except probe#13Jun 28 2010 08:04PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometeryesAs of 1101123, the 60, 88u, 88l, 140 and variable set at 115GHz are operational. The 50, 75 and 112 are nonoperational. On 1101123, the noise band at ~200kHz is again seen on the 88u and 88l channels.Nov 23 2010 09:30AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesOperational. New Langmuir-Mach probe head installed.Jun 28 2010 08:05PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesOperational.Jun 28 2010 08:05PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesBoth A and K units are operational. Coil polarity needs to be checked.Jun 28 2010 08:06PM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
SparkeryesHV supply on, cable run to sparker at k-horJun 23 2010 02:41PM (irby)Jim IrbyField Emission Preionization for C-Moddekow,irby,parkin
Surface Science StationyesSSS installed and leak tested.Oct 21 2010 11:31AM (ochoukov)Bruce LipschultzRadially scanning probe located on K-portblip,ochoukov
TCIyesNo new CO2 detector, so still missing edge channelsJun 23 2010 02:40PM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - CoreyesOperating with 2 lasersOct 22 2010 01:06PM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes,yma
TS - EdgeyesOperationalJul 14 2010 11:54AM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes,yma
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58AM (agraf)Alex GrafVisible Spectrometeragraf
XEUSyesOperational. Raw spectra stored but not line brightness time histories are going into the tree yet.Aug 24 2010 09:17AM (mlreinke)Matt ReinkeX-ray Extended Ultraviolet Spectrometermlreinke
XTOMOyesCore system working. Edge system waiting for H-modes.Jul 01 2010 11:55AM (mlreinke)Bob GranetzX-Ray Tomographygranetz,mlreinke