Miniproposals

Miniproposal: 296 Date Filed: 5/14/2001 Title: Confirmation of Thomson scattering density calibration using electron cyclotron emission cutoffs First Author: Jerry Hughes Session Leader: Jerry Hughes (shots 33-36)

Miniproposal: 687 Date Filed: 1/8/2012 Title: Transfer calibration of VUV/SXR spectroscopy First Author: Matt Reinke Session Leader: Matt Reinke (shots 1-32)

Engineering Operator Run Comment

MP687: Transfer Calibration of VUV/SXR Spectroscopy SL: M.L. Reinke PO:

Session Leader Plans

Entered: Feb 2 2012 08:47:00:697PM

Author: Matt Reinke

MP687: Transfer Calibration of VUV/SXR Spectroscopy SL: M.L. Reinke PO: E. Marmar This run will work to calibrate the VUV and SXR impurity spectrometers on Alcator C-Mod, using strong impurity seeding on Ohmic plasmas. With sufficient contamination, global measurements like the PRAD, XTOMO brightness and the dilution can be used to estimate the absolute impurity density. This can be used, along with impurity transport and radiation modeling, to provide a calibration constant for the spectrometers. Additionally, the results of this run can be used to find Zeff which can be compared to a number of other methods (VUV/VIS/IR continuum, neoclassical resistivity). A fixed target discharge will be repeated throughout the day and the seeded impurity changed every few shots. ECDC overnight in D2 deuterium main-ion plasmas start with 1.0 psi Ar in H-BOT plenum (disabled) start with 20 psi He in B-SIDE LOWER plenum (disabled) will want He, Ne, Ar, Xe and N2 (in that order) throughout the run day going into B-SIDE lower. D2 only in the GPI system (confirm w/ SL before enabling) LSN starting discharge: 1120106027 (1.1 MA, 5.4 T, 0.3 < nl04 < 0.6 10^20) (1) load LSN target, modify parameters: Ip=1.2, Bt=6.2, nl04 ~ 0.9. Demonstrate clean baseline plasmas. (2) add trace Ar to (1) H-BOT 0.30-0.35, enable Mo LBO (x3 or x4 injections) (3) start moving through recycling impurities (keep H-BOT, no [maybe..?] Mo LBO) Set B-SIDE valve to 75 V a) 20 psi He from 0.7-1.0 b) 3.0 psi Ne from 0.7-0.95 c) 2.0 psi Ar from 0.7-0.90 (do a locked mode calibration shot: 1120118001) d) 1.5 psi Xe from 0.7-0.85 At each step, adjust PG voltage level and puff length to increase impurity level near maximum possible for Ohmic plasma. If delays or difficulties are encountered skip 3d (Xe puffing) (4) move to non-recycling impurities a) 15 psi N2 from 0.7-0.95 (5) move to innerwall limited to try and change the Mo and B levels above clean target (1). Lower the nl04 to 0.7, 0.5 10^20 if necessary. (6) repeat (1) to try and demonstrate "clean" plasmas (7) if time, select from 3a-c and repeat, testing for hysteresis (8) if time and diagnostic personnel available, run ECE/TS calibration shots (repeat 1120117027)

Physics Operators Plans

Entered: Feb 3 2012 08:49:20:193AM

Author: Earl Marmar

----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1120106027 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 20 psi HELIUM-4 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 fill H-bottom plenum, 1.0 psi ARGON Hybrid DISABLED (PG5) Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus, Loeus 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): no LH(yes/no): no Cryopump (yes/no): no DNB (yes/no): yes 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 see SL_PLAN for details

Session Leader Summaries

Entered: Feb 3 2012 05:10:49:360PM

Author: Jerry Hughes

MP296 summary We got three shots at the end of this run for TS calibration using ECE cutoffs. Result was two plasmas and a fizzle. The two plasmas (34, 36) had useful cutoff data on GPC2. It should allow apreliminary calibration of the TS channels inside Rmaj~0.8m.

Entered: Feb 3 2012 05:52:43:740PM

Author: Matt Reinke

We were able to get the calibration shots we needed for He, N2, Ne and Ar. Lots of post-disruption fizzles put us behind enough that the Xe and inner-wall limited plasmas weren't run. This should be enough to get the calibration ready for next week's MP 671 run. We tweaked up the un-seeded plasma from shots 001-004. Shots 005-009 were He seeding where we were able to change the dilution substantially, but there wasn't much PRAD increase. Shots 010-16 were Ne seeding with 015 being the best. Shots 017-020 were Ar seeding and 021-022 were locked mode calibrations for HIREXSR. Shot 023 (and 032) were repeats of the unseeded baseline and 024-031 used N2 seeding. The last few shots (033-036) were used for Thomson scattering and ECE cross-calibration. During the higher N2 seeding shots (027,028), there was a strange feature that initially presented like an L/H transition but was later identified to be a "poloidal detachement" which I had not encountered before. We didn't have the LBO or DNB for this experiment which limited some of the secondary goals of getting CXRS data. The Ne and N2 GPI-based CXRS worked really well. The N VII line was looked at with higher spectral resolution but there's still blending issues with the N II line. The Ne CXRS ~525 nm looks very promising for a possible substitute/complement for pedestal CXRS. We need to revisit this w/ the DNB and the higher resolution CHROMEX grating. Overall, a slow run that was probably made tougher by my choice of high Ip induced post-disruption fizzles. The non-recycling nature of the N2 allowed for easier ramp downs because the impurities left the confined plasma by the time we ramped down. In the future, if this is run again for Ne or Ar the cryopump should be used to help assist in reducing the recycling rate.

Physics Operator Summaries

Entered: Feb 9 2012 02:00:46:687PM

Author: Earl Marmar

The machine ran reasonably well today, but we had more than the usual number of fizzles. Many followed high current (1.2 MA) disruptions, which were mainly the result of all the impurity puffing for today's MP. Tweaks to fill-pressure and EF4 current did not appear to help (or hurt). The last 2 plasmas were used for ECE cutoff calibration of Thomson density. Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result | 01 1.956 1.207 Plasma | 02 1.955 1.208 Plasma | | 03 1.944 1.206 Plasma | 04 1.848 1.205 Plasma | | 05 1.502 1.205 Plasma | 06 0.000 0.048 Fizzle | | 07 1.596 1.205 Plasma | 08 0.000 0.051 Fizzle | | 09 1.834 1.206 Plasma | 10 0.000 0.042 Fizzle | | 11 1.652 1.207 Plasma | 12 0.000 0.041 Fizzle | | 13 1.135 1.306 Plasma | 14 0.000 0.043 Fizzle | | 15 1.515 1.206 Plasma | 16 1.019 1.304 Plasma | | 17 1.657 1.207 Plasma | 18 0.000 0.041 Fizzle | | 19 1.535 1.207 Plasma | 20 0.000 0.045 Fizzle | | 21 0.656 0.849 Plasma | 22 1.354 0.830 Plasma | | 23 1.904 1.206 Plasma | 24 0.000 0.039 Fizzle | | 25 1.800 1.206 Plasma | 26 0.000 0.038 Fizzle | | 27 1.898 1.207 Plasma | 28 1.907 1.205 Plasma | | 29 1.925 1.207 Plasma | 30 0.000 0.041 Fizzle | | 31 1.925 1.207 Plasma | 32 1.922 1.206 Plasma | | 33 0.000 0.042 Fizzle | 34 1.486 0.797 Plasma | | 35 0.000 0.040 Fizzle | 36 1.613 0.799 Plasma | Date 1120203: 36 shots. 24 plasmas. 12 fizzles. 0 duds. 0 System Error. (Plasma = Ip gt 60.0 kA Dud = H_alpha lt 0.10 V) Total plasma duration: 39.54 s (exceeding -120 kA)

Session Leader Comments
Feb 3 2012 09:11:09:600AM	1120203001	Matt Reinke	Good test of target shot, Ip=1.2, Bt=6.2, nl04~0.8 a little low. bad TS, no DNB NEXT: Repeat to get TS data for clean baseline
Feb 3 2012 09:28:42:970AM	1120203002	Matt Reinke	Great "clean" target. 2pid ~ 0.25 MW, 2pif~0.5. NEXT: enable diagnostic Ar puff from B-SIDE lower. 1 psi Ar 0.30-0.375. Enable Mo LBO at 1.6 seconds.
Feb 3 2012 09:42:16:237AM	1120203003	Matt Reinke	good target, but Ar seeding too low for time-averaged HIREXSR. Mo LBO did not work. Been informed that we lost the DNB, probably for the whole day. NEXT: increase Ar to 125 ms length puff from H-BOT, work on LBO.
Feb 3 2012 09:56:44:783AM	1120203004	Matt Reinke	good Ar level, 2piD=0.35, 2piF-0.65 NEXT: start recycling gas puffing, 20 psi He from 0.7-1.0. NINJA enable at 1.3 seconds (D2) from B-IN and G-OUT
Feb 3 2012 10:10:04:907AM	1120203005	Matt Reinke	Certainly got He into the plasma, but far too much, nl04->1.4. Ran out of OH power. NEXT: reduce He to 0.7-0.9 and set voltage to 50 V
Feb 3 2012 10:17:19:537AM	1120203006	Matt Reinke	fizzle
Feb 3 2012 10:41:17:413AM	1120203007	Matt Reinke	good shot, more reasonable change in nl04. NINJA was at 1.0, confusing the density rise due to He. NEXT: Move NINJA to 1.3 and repeat
Feb 3 2012 10:44:43:357AM	1120203008	Matt Reinke	fizzle
Feb 3 2012 11:10:12:797AM	1120203009	Matt Reinke	Good He shot. NEXT: Move to Ne puffing 3 psi, 75 V from 0.7-0.95. Move CHROMEX to 526 to see Ne CXRS lines.
Feb 3 2012 11:18:49:800AM	1120203010	Matt Reinke	fizzle
Feb 3 2012 11:42:34:810AM	1120203011	Matt Reinke	good Ne shot! Get a clear change in PRAD and edge SXR brightness. I think we see the Ne IX CXRS line. NEXT: running out of room on the power supplies. Starting ramp down at 1.4 seconds, moving NINJA back to 1.2 seconds. increase length of Ne puff to 1.05 seconds.
Feb 3 2012 11:49:51:080AM	1120203012	Matt Reinke	fizzle
Feb 3 2012 12:06:56:180PM	1120203013	Matt Reinke	early disruption, too much Ne NEXT: reduce Ar to 75 ms puff, end Ne puff at 1.0
Feb 3 2012 12:33:24:970PM	1120203015	Matt Reinke	Great Ne shot! NEXT: Increase voltage to 100 V.
Feb 3 2012 12:45:35:783PM	1120203016	Matt Reinke	early disruption. Cu injection at 0.68 NEXT: move to Ar seeding, 2 psi, 75 V, 0.7-0.9
Feb 3 2012 12:58:03:670PM	1120203017	Matt Reinke	great Ar shot NEXT: extend Ar puff to 1.0 sec (300 ms total)
Feb 3 2012 01:09:14:160PM	1120203018	Matt Reinke	fizzle
Feb 3 2012 01:24:54:533PM	1120203019	Matt Reinke	Ar even higher then previous. NEXT: locked mode for HIREXSR
Feb 3 2012 01:38:05:337PM	1120203020	Matt Reinke	attempt at locked mode shot - fizzle
Feb 3 2012 01:45:54:280PM	1120203021	Matt Reinke	locked mode but early disruption, could be Ar or could be the nature of the LM shot NEXT: lower Ar to 30 V and repeat
Feb 3 2012 01:58:53:927PM	1120203022	Matt Reinke	Good locked mode shot. NEXT: repeat 019 w/o any Ar (disable B-SIDE LOWER)
Feb 3 2012 02:17:02:557PM	1120203023	Matt Reinke	Good baseline comparison to earlier shots. No significant contamination from recycling impurities. NEXT: skipping the Xe and moving on to N2. 15 psi from 0.7-0.95 at 75V
Feb 3 2012 02:38:10:493PM	1120203024	Matt Reinke	fizzle? after a full ramp down?
Feb 3 2012 02:44:54:827PM	1120203025	Matt Reinke	good shot, but got residual Ar through the B-SIDE lower puff in addition to Ar. Looks like ~50% Ar and 50% N radiation increase. NEXT: purge and refill B-SIDE N, increase N2 pulse length to end at 1.2 seconds, increase voltage to 85 V.
Feb 3 2012 03:16:02:817PM	1120203027	Matt Reinke	Getting an "event" in the density. Earl and others say "poloidal detachment" NEXT: reduce N2 to 75 V
Feb 3 2012 03:21:45:770PM	1120203028	Matt Reinke	event is "smaller" NEXT: reduce N2 puff to 50 V
Feb 3 2012 03:37:49:750PM	1120203029	Matt Reinke	Good N2 shot, steady up/down on the radiation. NEXT: lengthen N2 puff to 1.3 seconds, put NINJA at 1.1 and set CHROMEX to high resolution grating centred on the N VII CXRS line.
Feb 3 2012 04:07:51:250PM	1120203031	Matt Reinke	Good N2 shot. Got high resolution CXRS of N VII. NEXT: repeat target w/o seeding then do Thomson/ECE calibration
Feb 3 2012 04:23:15:160PM	1120203032	Matt Reinke	Good baseline shot. No significant residual N2. NEXT: TS/ECE cross-calibration plasma
Feb 3 2012 04:28:29:810PM	1120203033	Jerry Hughes	Shot 33 Attempt 4T density ramp for ECE cutoffs. Result: Fizzle.
Feb 3 2012 04:50:16:937PM	1120203034	Jerry Hughes	Shot 34. Some useful cutoffs. Central cutoffs are a bit fast due to the detachment event at 1.25s. For next shot, relax density feedback demands and put strike point in a more customary location.
Feb 3 2012 04:52:07:893PM	1120203035	Jerry Hughes	Shot 35 Fizzle
Feb 3 2012 05:07:25:777PM	1120203036	Jerry Hughes	Shot 36 Ran through. Detachment happens later. Slower central cutoffs. Looks useful.

Physics Operator Comments
Feb 3 2012 09:14:52:337AM	1120203001	Earl Marmar	load from 1120106027 Ip to 1.2 MA nl_04 to 9e19 I_EF4 to 3000 during flattop Bt to -172kA (segment 2) import segment from 1120202003 into segment 1 plasma, full length startup looks ok density doesn't quite reach target
Feb 3 2012 09:29:36:490AM	1120203002	Earl Marmar	no dpcs changes plasma, full length
Feb 3 2012 09:49:36:693AM	1120203003	Earl Marmar	nl_04 target to 9.5e19 puff argon from H-bottom (PG5), 0.3 to 0.375 s plasma, full length
Feb 3 2012 09:58:39:197AM	1120203004	Earl Marmar	increase argon puff (now 0.3 to 0.425s) plasma, disrupt at end of rampdown (350 kA) early hards
Feb 3 2012 10:07:23:407AM	1120203005	Earl Marmar	BR_0 offset to 0.0015 (from 0.001) helium puff (PG1) from .7 to 1.0 plasma, disrupt at end of flattop OH1 hit its limit
Feb 3 2012 10:42:30:123AM	1120203006	Earl Marmar	reduce helium puff (now 50 V, 0.7 to 0.9 s) OH1 limits now [-30,27] (was [-27,27]) fizzle
Feb 3 2012 10:32:12:670AM	1120203007	Earl Marmar	reduce prefill puff to 16 ms (from 17 ms) plasma, disrupt early in rampdown (1.6 s)
Feb 3 2012 10:44:44:510AM	1120203008	Earl Marmar	no dpcs changes fizzle
Feb 3 2012 11:06:15:840AM	1120203009	Earl Marmar	no dpcs changes plasma, disrupt in late rampdown, 350 kA
Feb 3 2012 11:19:19:713AM	1120203010	Earl Marmar	B-side lower switched to neon, 3 psi (was helium, 20 psi) neon puff 75 v, from 0.7 to 0.95s reduce argon puff, 0.3 to 0.4 s (was 0.3 to 0.425 s) fizzle
Feb 3 2012 11:30:24:327AM	1120203011	Earl Marmar	EF4 current 10 A more negative prior to t=0 (now -1320 A) plasma disrupt in rampdown (1.65 s)
Feb 3 2012 11:45:30:413AM	1120203012	Earl Marmar	start Ip rampdown at 1.4 seconds increase neon puff (now 0.7 to 1.05 s) fizzle
Feb 3 2012 12:05:41:067PM	1120203013	Earl Marmar	no additional dpcs changes plasma disrupt at 1.13 s
Feb 3 2012 12:11:02:380PM	1120203014	Earl Marmar	reduce prefill puff by 2 ms (now 14 ms) reduce neon to 300 ms (from 350) reduce argon to 75 ms (from 100) fizzle
Feb 3 2012 12:41:10:033PM	1120203015	Earl Marmar	prefill puff to 16 ms (from 14 ms) plasma disrupt early in rampdown (0.99 MA)
Feb 3 2012 12:38:48:847PM	1120203016	Earl Marmar	increase neon (now 100 v) plasma, disrupt at 1 s
Feb 3 2012 01:00:03:790PM	1120203017	Earl Marmar	switch to 2 psi argon in B-side lower (PG1) argon puff 75 V from 0.7 to 0.9 s plasma, disrupt part way into rampdown (0.7 MA)
Feb 3 2012 01:08:34:847PM	1120203018	Earl Marmar	add 100 ms to argon puff (now on from 0.7 to 1.0 s) fizzle
Feb 3 2012 01:18:38:273PM	1120203019	Earl Marmar	no additional dpcs changes plasma rampdown disrupt, 0.96 MA
Feb 3 2012 01:46:30:520PM	1120203020	Earl Marmar	load locked-mode shot import segment 3 from 1120118001 into segment 3 turn off segment 2 turn on segment 3 reduce voltage on PG1 (argon) to 60 V in segment 3 fizzle
Feb 3 2012 01:47:53:373PM	1120203021	Earl Marmar	no additional dpcs changes plasma, disrupt at 0.65 s (too much argon?) looks like it locked around 0.3 s
Feb 3 2012 02:01:09:873PM	1120203022	Earl Marmar	reduce voltage on PG1 (argon) to 30 V plasma, locked mode, disrupt at 1.35 s
Feb 3 2012 02:18:44:867PM	1120203023	Earl Marmar	back to 1.2 MA turn off segment 3 turn on segment 2 (from 1120203019) disable b-side-lower (argon) keep h-bottom enabled (argon) plasma, full length
Feb 3 2012 02:26:24:830PM	1120203024	Earl Marmar	B-side-lower filled with 15 psi nitrogen PG1 to 75 V, 0.7 to 0.95 s fizzle
Feb 3 2012 02:43:35:657PM	1120203025	Earl Marmar	no additional dpcs changes plasma rampdown disruption, 0.42 MA
Feb 3 2012 02:55:34:910PM	1120203026	Earl Marmar	prefill puff to 15 msec (from 16) increase nitrogen puff (85 V, .7 to 1.2 s) fizzle
Feb 3 2012 03:17:20:753PM	1120203027	Earl Marmar	no additional dpcs changes plasma, full length
Feb 3 2012 03:22:14:647PM	1120203028	Earl Marmar	reduce N_2 puff (75 V on PG1) plasma, full length
Feb 3 2012 03:21:54:287PM	1120203029	Earl Marmar	reduce N_2 puff (50 V on PG1)
Feb 3 2012 03:46:24:627PM	1120203030	Earl Marmar	increase N_2 puff, turn off at 1.3 s fizzle
Feb 3 2012 04:01:13:817PM	1120203031	Earl Marmar	BR_0 offset to 0.001 T (from 0.0015) plasma, full length
Feb 3 2012 04:00:58:553PM	1120203032	Earl Marmar	disable b-side-lower (nitrogen)
Feb 3 2012 04:26:38:220PM	1120203033	Earl Marmar	Thomson density calibration, using ECE cutoffs load from 1120117027 import segment 1 from 1120203032 into segment 1 fizzle
Feb 3 2012 04:41:36:040PM	1120203034	Earl Marmar	no additional dpcs changes plasma, disrupt at 1.48 s
Feb 9 2012 01:55:46:917PM	1120203035	Earl Marmar	decrease RXL by 2 cm during flattop (keep the strike-point on the vertical plate) tweak the late nl_04 programming fizzle
Feb 3 2012 05:08:36:110PM	1120203036	Earl Marmar	no additional dpcs changes plasma, disrupt at 1.61 s

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:01:03:487AM	Plasma	Ok
2	09:14:42:857AM	Plasma	Ok
3	09:30:17:740AM	Plasma	Ok
4	09:43:33:300AM	Plasma	Ok
5	09:59:26:720AM	Plasma	Ok
6	10:14:49:270AM	Plasma	Ok
7	10:27:18:830AM	Plasma	Ok
8	10:42:50:930AM	Plasma	Ok
9	10:55:19:243AM	Plasma	Ok
10	11:15:08:620AM	Plasma	Ok
11	11:27:47:593AM	Plasma	Ok
12	11:43:39:693AM	Plasma	Ok
13	11:56:17:937AM	Plasma	Ok
14	12:09:01:110PM	Plasma	Ok
15	12:22:11:533PM	Plasma	Ok
16	12:35:35:793PM	Plasma	Ok
17	12:49:16:413PM	Plasma	Ok
18	01:01:42:517PM	Plasma	Ok
19	01:14:15:173PM	Plasma	Ok
20	01:28:52:743PM	Plasma	Ok
21	01:41:35:103PM	Plasma	Ok
22	01:54:06:170PM	Plasma	Ok
23	02:06:30:953PM	Plasma	Ok
24	02:24:03:973PM	Plasma	Ok
25	02:37:04:407PM	Plasma	Ok
26	02:50:32:940PM	Plasma	Ok
27	03:03:00:457PM	Plasma	Ok
28	03:16:14:877PM	Plasma	Ok
29	03:29:54:100PM	Plasma	Ok
30	03:44:21:797PM	Plasma	Ok
31	03:57:03:533PM	Plasma	Ok
32	04:10:17:253PM	Plasma	Ok
33	04:24:31:087PM	Plasma	Ok
34	04:37:21:300PM	Plasma	Ok
35	04:50:01:357PM	Plasma	Ok
36	05:02:29:330PM	Plasma	Ok

System Availability

Feb 3 2012 09:00:41:687AM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna golfit BES yes BES system is online Nov 22 2011 02:21PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes Midplane and LEDGE-AX diodes functioning properly. Midplane bolometers working and calibrated. LEDGE/DIV bolometers working, but toaster calibration not yet complete. Jan 23 2012 12:02PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no Bottle Removed. System has been tested and will be ready once bottle is installed Jan 09 2012 06:32AM (dekow) Jim Irby Boronization dekow,irby CECE no   Jan 06 2012 03:48PM  Anne White Correlation ECE whitea CNPA yes Multiple channel CNPA available, no safety risk for in-vessel access Apr 14 2011 12:01PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor yes Operational. He level meter not working on 500L dewar. Frank will take manual readings. Jan 11 2012 11:46AM (labombard) Brian LaBombard Upper Divertor Cryopump dekow,irby,labombard CXRS yes core-CXRS system is online Nov 22 2011 02:21PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan CXRS edge yes Michael CHurchill has primary responsibility at the moment Apr 19 2011 11:44AM (blip) Bruce Lipshultz Measurement of CXR light in the pedestal region at both the high- and low-field sides blip,rmchurch D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa no system is is installed and aligned, but not functional (appears to be a broken cable) Dec 05 2011 02:41PM (marmar) Earl Marmar Visible Bremsstrahlung Imaging marmar Disruption Mitigation no gas jet valve disabled on 2011/04/13 Apr 13 2011 02:04PM (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 DMBolo AXUV diodes yes Diodes are taking usable data. Not all post-processing code is working yet. Feb 01 2012 01:24PM (golynyk) Geoff Olynyk Set of six AXUV diodes in a toroidal array of midplane wall boxes. golynyk,granetz,mlreinke,whyte DNB yes   Dec 01 2011 11:46AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,mochung ECDC yes Operational as of 11/19/11 Nov 22 2011 03:01PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE no Power off to RF and IF sections- Power on to DA Apr 11 2011 02:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels bespam,liao,phillips,rowan,whitea FTCI no   Jan 06 2012 04:36PM  Jim Irby Fast two-color interferometer irby G-Side Ratiomatic yes   Dec 02 2011 12:24PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no Power supply unplugged and redtagged, HV cables removed Apr 14 2011 08:03AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Using new preamps. Nov 30 2011 07:51AM (hubbard) Amanda Hubbard ECE Polychromater hubbard GPC2 yes Dewar cold. Nov 21 2011 09:55AM (hubbard) Amanda Hubbard ECE Polychromater hubbard GPI yes The 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 Terry Gas Puff Imaging terry,zweben H/D yes system is functional and taking data Dec 05 2011 02:42PM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Jan 09 2012 06:32AM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36PM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr yes Installed and aligned. Will be available for Ti/Vr profiles after focusing tests and locked modes are taken. Dec 06 2011 08:21AM (ypodpaly) John Rice High Resolution X-Ray cgao,ldelgado,rice,ypodpaly HXR yes 32 Channels operational,, no safety risk for in-vessel access Apr 14 2011 12:05PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna no secured Apr 14 2011 08:55AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna no secured Apr 14 2011 08:55AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna no secured Apr 14 2011 08:56AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin Impurity Spectroscopy yes Being upgraded with better optics and new spectrographs. Dan Miller has primary responsibility. Apr 19 2011 11:46AM (blip) Bruce Lipshultz Measurement of recycling light and impurity source rates at multiple surfaces around the tokamak blip,miller Laser Blow-Off yes Operational and tested Jan 06 2012 03:50PM (g) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid no LH HV Breaker Opened and Tagged, TPS Upgrade Underway Nov 10 2011 03:51PM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer no off Apr 15 2011 08:24AM (dominguez) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek LoWEUS yes LoWEUS viewing the 10-30 nm region, spectral brightness vs. lambda and time are being stored in tree. Jan 23 2012 12:03PM (mlreinke) Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometer markchil,mlreinke LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane Lyman-a and LEDGE-LY working normally. New B-PORT Lyman (BPLY) still being debugged. Jan 23 2012 12:04PM (mlreinke) Matt Reinke Lyman alpha cameras faustian,labombard,mlreinke Magnetics yes   Dec 01 2011 11:51AM (g) Robert Granetz Bp coils and flux loops for equilibrium control granetz,wolfe McPherson no **vacuum system problem*** McPherson viewing the 10-14 nm region for molybdenum monitoring. It's days are numbered as LoWEUS has demonstrated superiority. Jan 31 2012 08:15AM (mlreinke) Jim Terry VUV Spectrometer markchil,mlreinke,terry Michelson yes Front end at 4.5e-8 T. Reduced speed for initial operation. Nov 30 2011 07:51AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes   Dec 02 2011 12:27PM (toland) Brian LaBombard Baratron pressure gauges labombard,toland MLP no System 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 LaBombard Mirror Langmuir Probe Electronics System labombard MSE no 1/3/2011: push-pull mechanism broken. MSE inoperative Jan 03 2012 11:47AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes High voltage is on. We're ready for plasma. Nov 21 2011 12:58PM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes All detectors Powered On --- Waiting for neutrons for calibration Nov 22 2011 01:05PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA yes C-bottom and new F-bottom system ready. Dec 02 2011 12:28PM (toland) Brian LaBombard NINJA gas puff labombard,terry,toland PCI yes Operational. Nov 30 2011 12:45PM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab Penning Gauges yes Operational. High voltage comes on during INIT and off at RECOOL. Dec 09 2011 09:48AM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter yes 3 chords operational but with high noise level Jan 06 2012 04:22PM (irby) Jim Irby C-Mod Polarimeter irby Power - Alternator Air Switch yes   Jan 09 2012 06:33AM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes   Jan 09 2012 06:33AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Jan 09 2012 06:33AM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Jan 09 2012 06:33AM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational, except for probe #1 (open circuit) and probe #16 (not installed). Dec 09 2011 09:50AM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational, except for bottom-D probe (open circuit). Dec 09 2011 09:52AM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes F-divertor ok. J-divertor ok, except for JDIV_06 which is shorted out. Dec 09 2011 09:54AM (labombard) Brian LaBombard Outer Lower Divertor Probe Array (F and J) labombard Probe Array - UDIV yes Operational except for probes #4, 5 and 13 (open) Dec 09 2011 09:56AM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes As of 1120105xxx, all channels are connected Jan 05 2012 09:14AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Ion Sensitive Probe head installed. Testing in piggy-back mode. Dec 20 2011 12:33PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. Dec 09 2011 09:57AM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A-port WASP is operational. K-port WASP is dead (all probes melted together). Dec 09 2011 09:58AM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Shoelace Antenna yes Fixed frequency operation available (100kHz) at moderate power (< 0.5kW). Otherwise in receiver mode. Jan 11 2012 11:50AM (labombard) Brian LaBombard High-k active MHD antenna, for QCM, WCM studies golfit,labombard SOL reflectometer yes c-port waveguides operational, h-port waveguides are not. Nov 29 2011 12:04PM (cornwall) Cornwall Lau SOL reflectometer cornwall,wukitch,ylin Sparker yes New Type II sparker replaced Type I on 11/17/2011 Nov 23 2011 08:53AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station no SSS is up to air, no safety issues Apr 14 2011 12:06PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes TCI Operational. Density feedback operational. Nov 10 2011 11:47AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with two 50Hz lasers, precise density calibration still required. Feb 03 2012 04:04AM (jwhughes) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma TS - Edge yes System taking data. Requires calibration. Feb 03 2012 04:05AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jrwalk,jwhughes,yma Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf XEUS yes XEUS viewing the 1-6 nm region, spectral brightness vs. lambda and time are being stored in tree. Jan 23 2012 12:13PM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer markchil,mlreinke XTOMO yes ARRAY1->4 working normally, ARRAY5 (new core view) working but spatial calibration issues not yet resolved Jan 23 2012 12:13PM (mlreinke) Robert Granetz X-Ray Tomography faustian,granetz,mlreinke