Alcator C-Mod Run 1120801 Information

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Miniproposals
Miniproposal:577
Date Filed: 7/21/2012
Title:ITER-like Discharge Rampup Studies
First Author:Chuck Kessel
Session Leader:Chuck Kessel (shots 1-33)
Miniproposal:714
Date Filed: 7/21/2012
Title:MHD effects on massive gas injection disruption mitigation
First Author:Geoff Olynyk
Session Leader:Geoff Olynyk (shots 34-35)

Operators
Session leader(s):Chuck Kessel,Geoff Olynyk
Physics operator(s):Ian Hutchinson
Engineering operator(s):Andy Pfeiffer,Bill Byford,Ed Fitzgerald

Engineering Operator Run Comment
MP577 ITER-like Rampup with Density Variations and LH SL Chuck Kessel PO

Session Leader Plans
Entered: Jul 31 2012 07:36:56:630PM
Author: Chuck Kessel
Run Plan for MP577 ITER-like Rampup with Density Variations and LH

1. Recover 1090911018 (a 1-2 MW ICRF in rampup discharge), ohmic plasma, 5.4 T, Ip = 1.3 MA, kappa = 1.75
a. early divert, 80-100 ms
b. sustained off wall for entire rampup
c. nl04 = 0.75e20 /m2 at end of ramp
d. smooth rampup density trajectory to extent possible, remove early drops and cross-over features
e. 0.0-0.5 s rampup, 0.5-1.2 s flattop, 1.2-2.0 s rampdown
f. only ELM-free H-modes were obtained in 1090911, and these are considered adequate for the H-mode phase, all discharges will have 3+ MW of ICRF power injected by end of ramp steady throughout flattop.
g. Flattop ICRF power is to be turned off at 1.1 s.

2. ohmic vary the density while remaining in L-mode, with ICRF at 3+ MW on at 0.5 s
a. nl04 = 0.5e20 /m2
b. 0.9
c. 1.3

3. ICRF at 1 MW, 0.12-0.5 s, vary the density while remaining in L-mode, with ICRF at 3+ MW on at 0.5 s
a. 0.5
b. 0.9
c. 1.3

â??based on time/progress, consider performing fast ramp at this point, then resume slower ramp

4. Change Ip ramp time to 250 ms (to simulate a 50 s rampup in ITER) and run some of the rampup cases from above, with ICRF at 3+ MW on at 0.25 s
a. Ohmic, nl04 = 0.75e20, 0.9e20
b. ICRF, at 1 MW from 0.12 s to 0.25 s, nl04 = 0.75e20, 0.9e20
c. ICRF, at 1 MW from 0.12 s to 0.19 s, and 2 MW from 0.19 to 0.25 s, nl04 = 0.75e20, 0.9e20

â?? back to slower ramp

5. LH injection at maximum power, 0.5 s duration, 500 kW or more, 0.15-0.65 s, vary the density while remaining in L-mode, with ICRF at 3+ MW on at 0.5 s
a. nl04 = 0.45x1020 /m2
b. 0.50
c. 0.55

6. ICRF at 1 MW from 0.12-0.25 s, then 2 MW from 0.25-0.5 s, vary the density while remaining in L-mode, with ICRF at 3+ MW on at 0.5 s
a. 0.5
b. 0.9
c. 1.3

Physics Operators Plans
Entered: Jul 30 2012 11:32:34:930AM
Author: Steve Wolfe
Physop plan and Engineering setup for Wednesday, Aug 1, 2012
Submitted by wolfe for Ian Hutchinson
MP#577 ITER rampup scenario validation
SL: Kessel
PO: Hutchinson
-----------------
Engineering Setup
-----------------

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

Power systems as on: 1090911018
** But set Fizzle Detector Gate Off time to 2.1sec, extend OH1, OH2U and OH2L
invert times to 2.3 seconds, if not already set there. 

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 2 psi Neon Hybrid DISABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main with 40 psi D2 Hybrid enabled (PG3)
fill H-bot with 1psi Ar Hybrid DISABLED (PG5) 
fill NINJA with 10 psi D2 DISABLED

Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus/LoWEUS
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): YES
Cryopump (yes/no): no
DNB (yes/no): no

Vessel temperature: 35/35/35

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

Physics Operator Plan:
-----------------------
Load segs #1 and 2 from 1090911018 and recalculate the magnetics predictors.
If necessary, Load Procedures dpcs_xjump (ASYNC_PROS) and dpcs_piezo_chopper (OUTPUT_PROS) consistent with present operation. 

1. Tweak up the startup and 
current rise, as indicated in SL_PLAN. Ramp to 1.3MA at 0.5 sec, with 
early divert.  The main issue in the rampup is to get rid of the limiter contact during the OH1 crossover thrash. Initial target density is 0.75e20 
at beginning of flattop (BOF). Rampdown to start at 1.2sec, end at 2.0sec. 
ICRF requested at 3MW from 0.5sec to 1.1sec.  

2. Do a 3 point density scan (meaning density at BOF): nl04= 0.5, 0.9, 1.3e20;
Keep plasma off the wall during ramp. 

3. Use ICRF at 1MW from 0.12 to 0.5sec, then 3MW in flattop. Repeat 3 point 
density scan. Continue to keep plasma off the wall. 

4. If time of day is getting late, change to a faster rampup, BOF at 0.25sec,
and retune to eliminate crossover thrash. Repeat with and without ICRF in ramp,
possibly with two density targets. This step may be postponed if there seems to be enough time to pick it up later in the day.

5. Using the 0.5sec ramp, use LH in rampup, P_LH>500kW, t=0.15-0.65sec; ICRF at 3MW in flattop. Density scan (at BOF) 0.45, 0.5, 0.55e20. May need to disable 
or increase threshold on dpcs_xjump shutdown algorithm for this step (see below). Do we really want to do this? Need to consider possibility of limiter damage. 
Steps for increasing threshold on dpcs_xjump to avoid soft abort: 
  + Click on the dpcs_xjump button, under DPCS Loadable Procedures, ASYNC_PROS
  + In the Edit Procedure widget, change INPUTS from "NEUTS_HARDS" to "SSD_X02"
    ( that's a zero between the X and the 2)
  + In the window labeled PARAMETERS, change the value of the THRESHOLD tag 
    from 1.0e15 to 1.0e16, leave the other tags unchanged. 
  + Click the OK button
  + To verify the changes have been entered, click the dpcs_xjump button
    on the main PCS screen again, and examine the entries. If they match,
    then click Dismiss and proceed. 
Note that once the LH section of the run is completed, go back to the
dpcs_xjump Edit Procedure widget, and click the Load Default button at the
top to restore the normal settings, then click OK. 
6. If we get this far: Turn off LH, use two step ICRF in rampup, 1MW 0.12-0.25sec, then 2MW from 0.25-0.5sec. Repeat 3 point density scan as in steps 2 and 3. 


Session Leader Summaries
Entered: Aug 1 2012 05:41:36:220PM
Author: Chuck Kessel
Goals for today were to revisit Ip rampup with density variations and various heat sources OH/IC/LH, trying to recover early divert and no to minimal wall contact after diverting

Many discharges were spent trying to recover the good rampup behavior obtained in 1090911 with no wall contacts during rampup, after getting shots 001, 002 and 003 to come up easily. Many, Many, Many

006, this shot had choppy early RF, no inner contact at 120 ms, but kiss outer at 120 ms, an inner kiss at cross-over

007 disrupt at 0.55 s

010 no inner but some outer contact at 120 ms, just a kiss inner at cross-over

012 good ICRF 1-2 MW in rampup, inner and outer touches

015 ohmic, clean discharge, no inner but some outer at 120 ms, kiss inner at cross-over

016 ohmic, beginning to minimize all wall contacts

018 ohmic, again very small contacts

020, ohmic, very small contacts, nl04 = 0.78 at EOR

021 ohmic nl04 = 0.9
022 ohmic nl04 = 1.3
025 ohmic nl04 = 0.5...that is a ninja puff in flattop

026 1 MW IC, nl04 = 0.5
029 1 MW IC, nl04 = 0.9

Seeing no change in OH1 for any variation. Clear contradiction to runday 1090911.

Began faster Ip ramp for IO request....basic problem is that early divert requires that we get off the resistors early (40ms) and so we have limited ovltage from power supplies. Maybe other hidden snafus. 400 ms rampup seemed OK, but 250 and 350 ms failed.

Overall the run day was very challenging, requiring discharge development since 2009, while trying to do scans. Harder than expected by all.








Physics Operator Summaries
Entered: Aug 1 2012 05:32:19:247PM
Author: Ian Hutchinson
Summary
-------

A tough day because of many failed current ramps and disruptions from
1.3MA. Early crowbar and early divert plasmas proved to be prone to
current stalls and bounces, in a manner worse than observed on the
long prior run 1090911. It did not prove possible to avoid completely
the touch of the plasma on the inner wall at OH1 crossover. Early
diversion did seem to be possible without instability, and without a
limited period (e.g. according to mfil shots 16,18,20,21,22, but many
shots had momentary touches, and efit says even those shots just
touch). A current ramp to 1.3MA in less than 0.4s is not possible
because of OH1 voltage limitations.

Physop lessons learned.
-----------------------

The low voltage, early crowbar, shot used was originally run without
the PG3 -10ms puff that suppresses runaways. It had faster Bz ramps
(for no obvious reason), and faster Ip initial derivative. Lowering
the PG3 prepuff did not seem to raise the Ip derivative much but did
give enough runaways that the shot was terminated under control. Many
bounces were experienced. It did not seem to be possible to raise the
EF3 voltage at the relevant time (10-20ms) presumably because we are
at PS limits. Towards the end of the day bounces seemed to be avoided
after a series of lowerings of the OH voltages (which has the effect
of raising the Bz ramp rate.) Probably the last shot (33) is a
sensible place to start for future development but with more modest Ip
ramp after 0.1s.

Scorecard
---------
  Shot,Duration(s),Ipmax(MA),Result  Shot,Duration(s),Ipmax,Result
  |   01   1.946   1.303   Plasma  |   02   1.952   1.317   Plasma  |
  |   03   1.950   1.310   Plasma  |   04   0.078   0.200   Plasma  |
  |   05   0.090   0.277   Plasma  |   06   1.951   1.312   Plasma  |
  |   07   0.562   1.311   Plasma  |   08   0.000   0.061   Plasma  |
  |   09   0.000   0.077   Plasma  |   10   0.669   1.388   Plasma  |
  |   11   0.000   0.096   Plasma  |   12   0.775   1.390   Plasma  |
  |   13   0.000   0.075   Plasma  |   14   0.554   0.650   Plasma  |
  |   15   1.958   1.291   Plasma  |   16   1.313   1.292   Plasma  |
  |   17   0.084   0.134   Plasma  |   18   1.963   1.295   Plasma  |
  |   19   0.000   0.048   Fizzle  |   20   1.953   1.296   Plasma  |
  |   21   1.955   1.302   Plasma  |   22   1.923   1.286   Plasma  |
  |   23   0.000   0.086   Plasma  |   24   0.000   0.054   Fizzle  |
  |   25   1.955   1.295   Plasma  |   26   0.732   1.416   Plasma  |
  |   27   0.246   0.756   Plasma  |   28   0.000   0.039   Fizzle  |
  |   29   1.971   1.304   Plasma  |   30   0.000   0.042   Fizzle  |
  |   31   0.226   0.883   Plasma  |   32   0.453   1.272   Plasma  |
  |   33   1.145   1.306   Plasma 
Date 1120801:  33 shots.  29 plasmas.   4 fizzles.   0 duds.   0 System Error.
        (Plasma = Ip gt 60.0 kA   Dud = H_alpha lt  0.10 V)
Total plasma duration: 28.40 s (exceeding -130 kA)

Enter the hall of shame ....

Session Leader Comments
Aug 1 2012 10:04:01:683AM1120801003Chuck KesselGood recovery on first and subsequent shots...amazing after yesterdays nightmare. ICRF is tuning up with hard matching challenges in rampup. Ian working to remove inner wall contacts in ramp phase. Nice high Te with 2 MW ICRF. Choppy H-modes in flattop as in the previous runday...good enough for rampup studies.
Aug 1 2012 10:44:46:460AM1120801006Chuck KesselFirst inner wall contact at 120 ms eliminated on this shot, cross-over lissing contact still present. No longer forming early x-point at top.
Aug 1 2012 12:37:29:493PM1120801014Chuck KesselWorking the startup and early equilibrium formation...lots of differences since 2009. Using ohmic discharges to get going. ICRF was making Te(0) up to 5 keV with 2 MW.
Aug 1 2012 02:18:23:720PM1120801020Chuck KesselPretty good ohmic discharge on balance. There are still very short wall contacts, but these may be tolerable since similar OH1 currents are resulting commpared to 1090911 with no contacts. Will begin density scan of ohmic cases next.
Aug 1 2012 02:38:35:170PM1120801022Chuck Kessel021 is nl04 = 0.9, and 022 is nl04 = 1.3, ohmic....little difference in OH1 current, but Te appears to drop with n rise. Very short contacts.

Shot 023 is another icky early failure.
Aug 1 2012 03:32:01:840PM1120801026Chuck Kessel025 nl04 = 0.5 ohmic, even this case shows no effect on OH1

026 nl04 = 0.5 with 1 MW ICRF, decent rampup, no real effect on OH1, disruption in flattop. ICRF has a jumpy start, but smooth most of the way. 3 MW of ICRF makes the plasma toasty after rampup.
Aug 1 2012 04:05:59:957PM1120801029Chuck Kessel029 nl04 = 0.9 with 1 MW ICRF, perfect ICRF in ramp. short contacts. density low early, reflected in higher Te at same time....still not change in OH1.

Moving on to fast Ip ramp.
Aug 1 2012 04:34:50:253PM1120801031Chuck Kesseltried 250 ms rampup to 1.3 MA, however, the early divertor requirement has us switching from resistors to power supplies at 40 ms, making it impossible for us to get the current to rise due to lower voltage.

try 350 ms rampup
Aug 1 2012 04:55:34:330PM1120801031Chuck Kesselsee wolfe and hutchinson for the detailed discussion of voltage limits and cross-over complex behavior at these faster rampups

Physics Operator Comments
Aug 1 2012 08:10:02:920AMIan HutchinsonImport seg 1 and 2 from 1090911018.
Call/apply predictors rcur zcur bz Br in seg 1.
Call/apply predictors rcur(x3), zcur, clearin, rxl, zxl, rxu, zxu, b21_proj seg2.
dpcs_xjump and dpcs_piezo_chopper are present.
Load
Aug 1 2012 08:41:37:867AMIan HutchinsonImport seg 1 from 1120731028 to seg 4.

All Ps
All IC Ps are the same at t=0 except ICEF4 Seg 1 -1310 Seg 4 -1290A
Br offset is seg1 0, seg 4 .001
Rcur offset is seg1 0, seg 4 3000.

Only change: set Br offset to .001 in seg 1.

All Vs
Fill puff PG4 is seg1 24ms, seg4 16ms.
PG3 puff starts at seg1 24ms, seg4 -18ms.
EF3 V-programming is very different. Ditto OH1.

Only change. Copy across PG3 from seg4 to seg1.
Load
Aug 1 2012 09:13:53:727AM1120801001Ian HutchinsonPlasma to rampdown.
Aug 1 2012 09:41:13:810AM1120801002Ian HutchinsonPlasma to rampdown.

PG5 to 30ms puff at .6s. This is H-bottom Argon.
Import seg3 from seg1 of 1090911030
Load
Aug 1 2012 09:50:00:383AM1120801003Ian HutchinsonPlasma to rampdown.

Paste all PS Voltage traces from seg3 (=seg1 of 1090911030) to seg1.
Change EF1 crowbars to 35ms.
This should give me the shot 30 segment 1.
Load.

Call/apply predictors in seg3 to get rid of incompatibility.
Aug 1 2012 10:04:32:077AM1120801004Ian HutchinsonPlasma. Disrupts at 77ms. Lost vertical control.

Rcur gain to 3 at .04s.
EF1 crowbar back to 40ms.
Load.
Aug 1 2012 10:30:30:430AM1120801005Ian HutchinsonPlasma. Disrupts at 88ms.

There's a difference in the zcur between seg 1 and seg 2.
Set seg 2 zcur to -.005 at .1s like seg 1.
Ramp up fast zcur gain at .06 an .07s in seg 1 to reach seg2 values.
Load.
Aug 1 2012 10:41:34:137AM1120801006Ian HutchinsonPlasma to rampdown. Still very nearly lost it at seg switch.

Raise OH2s at 70ms to 10V from 5V. To reduce the elongation there.
Aug 1 2012 11:00:32:310AM1120801007Ian HutchinsonPlasma. Disrupts at .55s.

Rcur to .67 at 80ms in segs 1 and 2.
Aug 1 2012 11:20:16:093AM1120801008Ian HutchinsonFizzle.

ICEF4 to -1320 from -1310A
EF3V to 2850 from 2800 at 12ms.
Fill puff to 22ms from 24ms.
Load.
Aug 1 2012 11:25:45:257AM1120801009Ian HutchinsonEarly death at 30ms again.

EF3V to 2650 from 2550 at 20ms.
Aug 1 2012 11:42:22:070AM1120801010Ian HutchinsonPlasma disrupts at .67s. Appears to be a locked mode shortly before the vertical
control is lost.

EF3V to 2900 at 12ms.
Disable H-bottom.
nl04 to .7e20 at .3s.
Aug 1 2012 11:55:45:950AM1120801011Ian HutchinsonMultiple startup bounces.

ICEF4 to -1320A.
Aug 1 2012 12:11:00:480PM1120801012Ian HutchinsonPlasma disrupts at .77s.

ICEF4 to -1340A
Turn off RF.
Aug 1 2012 12:27:28:523PM1120801013Ian HutchinsonFailed current ramp.

ICEF4 to -1300A
PG3 prepuff leading edge removed.
Aug 1 2012 12:44:51:490PM1120801014Ian HutchinsonPlasma terminated by runaway rampdown.

ICEF4 to -1290A
Restore leading edge of PG3 prepuff.
Aug 1 2012 12:55:22:037PM1120801015Ian HutchinsonPlasma to rampdown. Substantially better startup.

Rcur at .08s to .663 from .67 in both segments.
Clearin gain to 10 during crossover.
Move clearin to .02 from .013 for .3 to .35s.
Aug 1 2012 01:10:26:140PM1120801016Ian HutchinsonPlasma disrupts in rampdown at 1.3s.

ICEF4 to -1280A.
EF3V to 2750V at 20ms.
Rcur to .66 at 80ms.
Load
Rcur out to .662 from .3s to .35s.
Aug 1 2012 01:27:45:697PM1120801017Ian HutchinsonCurrent ramp stops at 100kA.

EF3V to 2300 from 2200V at 25ms.
Load.
Aug 1 2012 01:42:03:470PM1120801018Ian HutchinsonPlasma to rampdown.

Move the crossover glitch start to .29s.
OH1V to 130V from 150V at 15ms.
Aug 1 2012 02:06:50:043PM1120801019Ian HutchinsonFizzle.

Br offset to .0005 from .001
OH1V to 100V at 15ms.
Load.

Aug 1 2012 02:06:30:220PM1120801020Ian HutchinsonPlasma to rampdown.

Increase crossover glitches.
nl04 point at .5s to .9e20
Aug 1 2012 02:19:56:303PM1120801021Ian HutchinsonPlasma to rampdown.

Start clearin glitch ramp at .23s.
OH1V lowered from 90 to 60 at 10ms.
OH2Vs lowered from 10 to 0 at 12ms.
Aug 1 2012 02:33:36:940PM1120801022Ian HutchinsonPlasma to rampdown.

nl04 to 0.5
OH1V an OH2Vs reduced more during 12, 17ms.
Load
Aug 1 2012 02:55:17:857PM1120801023Ian HutchinsonCurrent ramp failure.

Increase rcur glitch to .668.
Br offset to zero in seg 1.
Load.
Aug 1 2012 03:02:16:700PM1120801024Ian HutchinsonFizzle.

Lower OHs some more.
Aug 1 2012 03:12:39:570PM1120801025Ian HutchinsonPlasma to rampdown. Got rid of the startup bounce.

Increase the rcur glitch.
Increase early clearin gain.
Aug 1 2012 03:28:05:603PM1120801026Ian HutchinsonPlasma disrupts at .745s. Bounce comes back.

rcur gain switch delayed from 120 to 140ms.
nl04 to .9e20
Lower OHVs some more.
Aug 1 2012 03:33:58:827PM1120801027Ian HutchinsonPlasma till .24s. Only just started


ICEF4 to -1290A.
Load
Aug 1 2012 03:47:51:267PM1120801028Ian HutchinsonNo TF fault.
Aug 1 2012 04:08:44:037PM1120801029Ian HutchinsonPlasma to rampdown.

Program Ip to 1.3M at .25 changing points after .1s
Remove the rcur and clearin glitch.
Load.
Aug 1 2012 04:28:41:793PM1120801030Ian HutchinsonFizzle.

Lower OHs some more, as early as 7ms.
Load.
Aug 1 2012 04:34:17:823PM1120801031Ian HutchinsonPlasma disrupts a little after .2s. OH1 fails to follow its demand.

Slow the ramp by moving start of flattop to .35s.
Aug 1 2012 04:55:10:820PM1120801032Ian HutchinsonPlasma to 0.45s. Disrupts as it gets to the current level demanded (late).
This is a q=2 circular plasma complete with disruption.
OH1 never crosses over when it should because it has insufficient voltage to
counter the induction of the other power supplies. Then the plasma circularizes.


Slow the ramp to end at .4s
Aug 1 2012 05:31:55:940PM1120801033Ian HutchinsonPlasma disrupts at 1.13s.

Engineering Operator Comments
ShotTimeTypeStatusComment
108:58:31:997AMPlasmaOk
209:17:09:677AMPlasmaOk
309:31:12:030AMPlasmaOk
409:47:38:823AMPlasmaOk
510:01:36:260AMPlasmaOk
610:25:13:950AMPlasmaOk
710:39:15:013AMPlasmaOk
810:57:55:527AMPlasmaOk
911:10:51:970AMPlasmaOk
1011:23:38:293AMPlasmaOk
1111:39:17:073AMPlasmaOk
1211:52:38:057AMPlasmaOk
1312:06:50:427PMPlasmaOk
1412:23:24:243PMPlasmaOk
1512:36:02:207PMPlasmaOk
1612:52:43:610PMPlasmaOk
1701:07:14:383PMPlasmaOk
1801:22:17:380PMPlasmaOk
1901:36:53:287PMPlasmaOk
2001:49:28:113PMPlasmaOk
2102:03:42:503PMPlasmaOk
2202:17:47:687PMPlasmaOk
2302:32:06:320PMPlasmaOk
2402:44:35:560PMPlasmaOk
2502:57:24:807PMPlasmaOk
2603:12:00:313PMPlasmaOk
2703:26:00:537PMPlasmaOk
2803:38:19:540PMPlasmaBadTF did not fire
2903:50:46:420PMPlasmaOk
3004:06:11:703PMPlasmaOk
3104:18:36:303PMPlasmaOk
3204:31:38:497PMPlasmaBadfailure OH1 and OH2 Fuses OK
3304:53:16:567PMPlasmaOk
3405:47:52:480PMTestBadNo Gas
3505:54:23:493PMTestOk

System Availability
Aug 1 2012 08:58:13:470AM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDnosecured - tagged outJun 2 2008 11:03:58:433AM (sears)Joe SnipesActive MHD Antennagolfit
BESyesBES system is onlineNov 22 2011 02:21:12:050PM (bespam)Bill RowanBeam Emission Spectroscopybespam,liao,rowan
BolometersyesMidplane diodes functioning properly. Midplane bolometers working and calibrated. DIV bolometers installed but not yet toaster calibratedApr 20 2012 09:57:29:520AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
Boronizationyes Jun 15 2012 05:02:46:313PM (dekow)Jim IrbyBoronizationdekow,irby
CECEyesThe system is currently operational for Te tilde measurement. Talk to Choongki about the current configuration Jul 3 2012 04:38:00:317PM (nthoward)Anne WhiteCorrelation ECEnthoward,sck83,whitea
CNPAyesMultiple channel CNPA available, no safety risk for in-vessel accessApr 14 2011 12:01:59:693PM (parker)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper Divertoryes Jun 15 2012 05:02:31:550PM (dekow)Brian LaBombardUpper Divertor Cryopumpdekow,irby,labombard
CXRSyescore-CXRS system is onlineNov 22 2011 02:21:22:280PM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,liao,rachmcd,rowan
CXRS edgeyesMichael CHurchill has primary responsibility at the momentApr 19 2011 11:44:46:247AM (blip)Bruce LipshultzMeasurement of CXR light in the pedestal region at both the high- and low-field sidesblip,rmchurch
D Alphayes\ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not availableJul 1 2009 09:45:41:090AM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsanosystem is is installed and aligned, but not functional (appears to be a broken cable)Dec 5 2011 02:41:42:867PM (marmar)Earl MarmarVisible Bremsstrahlung Imagingmarmar
Disruption Mitigationyestwo gas jet valves active as of Feb 2012May 15 2012 10:09:23:597AM (granetz)Robert GranetzGas Jetgranetz,whyte
Divertor IRno Mar 6 2007 10:50:41:677AM Glen WurdenDivertor IR Digital Videogwurden,terry
Divertor IR Spectroscopyno Mar 6 2007 10:51:39:897AM Glen WurdenDivertor IR Spectroscopygwurden,terry
DMBolo AXUV diodesyesDiodes are taking usable data. Not all post-processing code is working yet.Feb 1 2012 01:24:23:953PM (golynyk)Geoff OlynykSet of six AXUV diodes in a toroidal array of midplane wall boxes.golynyk,granetz,mlreinke,whyte
DNByes"The beam could break at any moment."May 15 2012 10:09:52:470AM (granetz)Robert GranetzDiagnostic Neutral Beamdterry,granetz,mochung
ECDCyes Apr 26 2012 03:23:19:057PM (dekow)Jim Irby2.45 GHz, 3 kW, discharge cleaning systemdekow,irby,pfeiffer
FRC-ECEyesFRC-ECE is onlineMay 14 2012 11:53:01:693AM (bespam)Perry PhillipsHeterodyne ECE-32 channelsbespam,liao,phillips,rowan,whitea
FTCIyesSystem OperationalMay 14 2012 11:50:45:590AM (irby)Jim IrbyFast two-color interferometerirby
G-Side RatiomaticyesInstalled April 25,2012. New controller installed 5/29/2012Jun 7 2012 10:40:00:957AM (toland)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
Glow DischargenoHV cables disconnected and power supplies off. Electrical plugs have been disconnected, capped and red tagged.Mar 5 2012 10:21:53:460AM (dekow)Jim Irby1 kV, 5 A, glow discharge systemdekow,dterry,irby
GPCyesOperationalApr 27 2012 07:41:46:907AM (hubbard)Amanda HubbardECE Polychromaterhubbard
GPC2yesOperationalApr 27 2012 07:42:03:317AM (hubbard)Amanda HubbardECE Polychromaterhubbard
GPIyesThe Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 1 2009 09:45:50:933AM (terry)Jim TerryGas Puff Imagingterry,zweben
H/Dyessystem is functional and taking dataDec 5 2011 02:42:29:857PM (marmar)Earl MarmarH/D Ratiomarmar
HEATyes Apr 26 2012 03:23:49:607PM (dekow)Gary Dekow - Machine Heaters -burke,dekow
Hirex JryesHirex-Jr has been installedJun 28 2010 03:36:33:420PM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesInstalled and aligned. Will be available for Ti/Vr profiles after focusing tests and locked modes are taken.Dec 6 2011 08:21:02:453AM (ypodpaly)John RiceHigh Resolution X-Raycgao,ldelgado,rice,ypodpaly
HXRyes32 Channels operational,, no safety risk for in-vessel accessApr 14 2011 12:05:24:810PM (parker)Ron ParkerHard X-Ray Arrayfaust,parker,schmidt
ICRF D-Antennayes May 31 2012 09:20:06:827AM (wukitch)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayes May 31 2012 09:19:57:640AM (wukitch)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayes May 31 2012 09:19:47:443AM (wukitch)Steve WukitchJ-port antennawukitch,ylin
Impurity SpectroscopyyesBeing upgraded with better optics and new spectrographs. Dan Miller has primary responsibility.Apr 19 2011 11:46:02:193AM (blip)Bruce LipshultzMeasurement of recycling light and impurity source rates at multiple surfaces around the tokamakblip,miller
Laser Blow-OffyesPumped Down, Laser has not yet been tested but otherwise operationalMay 14 2012 04:31:17:037PM (nthoward)Martin GreenwaldImpurity Injection Systemg,nthoward
Lower HybridyesLH is now available for plasma operation up to ~900 kW net power.Jul 3 2012 02:50:00:693PM (wallaceg)Ron ParkerLower Hybriddterry,parker,wallaceg
Lower Hybrid ReflectometernooffApr 15 2011 08:24:27:930AM (dominguez)Arturo DominguezLower Hybrid Reflectometerdominguez,marmar,parker,sgbaek
LoWEUSyesLoWEUS viewing the 10-30 nm region, spectral brightness vs. lambda and time are being stored in tree.Apr 20 2012 10:43:34:077AM (mlreinke)Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometermarkchil,mlreinke
LPInoBeam line removedMay 30 2008 02:09:12:833PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphanoMidplane Lyman-a not functioning. New B-PORT Lyman (BPLY) still being debugged.Jul 12 2012 08:52:28:233AM (mlreinke)Matt ReinkeLyman alpha camerasfaustian,labombard,mlreinke
Magneticsyes Dec 1 2011 11:51:51:970AM (g)Robert GranetzBp coils and flux loops for equilibrium controlgranetz,wolfe
McPhersonnoMcPherson under vacuum but is not run on a day-to-day basis. Can be requested if desired. LoWEUS has taken over as the primary Mo monitor.Jul 12 2012 08:53:14:937AM (mlreinke)Jim TerryVUV Spectrometermarkchil,mlreinke,terry
MichelsonyesVacuum 3-4e-8 T. Starting with Michelson at reduced speed.Apr 27 2012 07:42:41:960AM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyes Dec 2 2011 12:27:47:163PM (toland)Brian LaBombardBaratron pressure gaugeslabombard,toland
MLPyesOperational. Connected to A-port probe systemMay 10 2012 08:40:19:910AM (labombard)Brian LaBombardMirror Langmuir Probe Electronics Systemlabombard
MSEyes2/29/2012 MSE operational. No HV or vacuum safety issuesFeb 29 2012 12:26:13:863PM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesVoltage is on for He3 detectors on J port. Remaining voltages will be turned on for the first run.Apr 23 2012 09:31:22:063AM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesAll detectors Powered On --- Waiting for neutrons for calibrationNov 22 2011 01:05:24:380PM (irby)Jim IrbyX-Ray/Neutron Detectors at K-Horirby
NINJAyesC-bottom and new F-bottom system ready.Dec 2 2011 12:28:44:843PM (toland)Brian LaBombardNINJA gas pufflabombard,terry,toland
PCIyesOperational.Jul 10 2012 07:08:06:883PM (ntsujii)Miklos PorkolabPhase Contrast Imagingemd,ennever,ntsujii,porkolab
Penning GaugesyesHV power supplies turned ON in INIT, off in RECOOLMay 10 2012 08:41:03:000AM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational.Jul 1 2009 09:46:29:543AM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
Polarimeteryes3 chords operational but with high noise levelJan 6 2012 04:22:20:903PM (irby)Jim IrbyC-Mod Polarimeterirby
Power - Alternator Air Switchyes Apr 26 2012 03:24:21:607PM (dekow)Gary DekowAlternator to Power Room Power Supply Connectioncochran,dekow,dterry,irby
Power - PEIyes Apr 26 2012 03:24:41:250PM (dekow)Gary DekowPEI Systemcochran,dekow,dterry,irby
Power - TMXyes Apr 26 2012 03:24:57:153PM (dekow)Gary DekowEf2s,. EFCs and A-Coilsbyford,cochran,dekow,dterry,irby
Power Systemsyes Apr 26 2012 03:25:14:497PM (dekow)Jim IrbyC-Mod Magnet Suppliesbyford,cochran,dekow,dterry,irby
Probe Array - ISDyesOperational. Some dead probes.May 10 2012 08:41:58:120AM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesOperational. 4 out of 6 probes working.May 10 2012 08:41:40:557AM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesOperational.May 10 2012 08:42:13:733AM (labombard)Brian LaBombardOuter Lower Divertor Probe Array (F and J)labombard
Probe Array - UDIVyesOperational. Some dead probes.May 10 2012 08:42:32:663AM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometeryesOn 1120608, the high frequency channels: 112, 140 and the variable, have been disconnected for some troubleshooting. All other channels are connectedJun 14 2012 11:28:59:603AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesOperational. A variety of probe heads are ready for use.May 10 2012 08:43:10:937AM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesOperational.May 10 2012 08:43:24:887AM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPnoNot functioning. Probe tips are melted. Repair not performed during break.May 10 2012 08:44:43:137AM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
Shoelace AntennayesOperationalMay 10 2012 08:45:08:320AM (labombard)Brian LaBombardHigh-k active MHD antenna, for QCM, WCM studiesgolfit,labombard
SOL reflectometeryesc-port (top, middle, bottom) and h-port available. Only 1 of 4 locations can be used for each dischargeMay 1 2012 04:54:58:820PM (cornwall)Cornwall LauSOL reflectometercornwall,wukitch,ylin
SparkeryesSparker Power Supply powered up. Connected at K port using red cable 4/23/12 9:25AMApr 23 2012 12:06:10:983PM (parkin)Jim IrbyField Emission Preionization for C-Moddekow,irby,parkin
Surface Science StationyesSSS is under vacuum and fully available.Jul 3 2012 02:46:59:753PM (ochoukov)Bruce LipschultzRadially scanning probe located on K-portblip,ochoukov
TCIyesTCI lasers in operation May 14 2012 11:51:18:700AM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - CoreyesOperating with both lasers, density calibration ongoing.Jul 19 2012 10:20:09:220AM (jrwalk)Jerry HughesCore Thomson scatteringjrwalk,jwhughes,yma
TS - EdgeyesOperating with both lasers, density calibration ongoing.Jul 19 2012 10:20:28:323AM (jrwalk)Jerry HughesMillimeter resolution edge Thomson scatteringjrwalk,jwhughes,yma
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58:35:493AM (agraf)Alex GrafVisible Spectrometeragraf
XEUSyesXEUS viewing the 1-6 nm region, spectral brightness vs. lambda and time are being stored in tree.Apr 20 2012 10:43:43:107AM (mlreinke)Matt ReinkeX-ray Extended Ultraviolet Spectrometermarkchil,mlreinke
XTOMOyesARRAY1->5 available. Specific channels on various arrays display issues.Apr 20 2012 05:36:28:523PM (faustian)Robert GranetzX-Ray Tomographyfaustian,granetz,mlreinke