Miniproposals

Miniproposal: 355 Date Filed: 11/12/2003 Title: ICRF Testing & Conditioning First Author: Steve Wukitch Session Leader: Yijun Lin (shots 1-34)

Engineering Operator Run Comment

MP355: RF conditioning and machine conditioning. PO: Hughes; SL: Lin

Session Leader Plans

Entered: May 22 2012 05:00:50:130PM

Author: Yijun Lin

MP355 RF conditioning and machine conditioning.. Goal: 1. make D/E run together at high power 2. debsorb as much H as possible by heating plasma with RF. Plasmas: LSN target: 1120522031 (last shot on 0522). USN target: 1120510030 Run some LSN targets and monitor H/D. Also condition antennas more. If H/D does not rise much, run USN targets until the end of the run. D/E antennas from 0.6 to 1.5 sec. Power and sequences can change according to the progress of RF conditioning and machine conditioning. LH group will try to run LH together with ICRF.

Physics Operators Plans

Entered: May 22 2012 05:49:15:507PM

Author: Jerry Hughes

----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1120522031 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/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): no Cryopump (yes/no): no DNB (yes/no): permitted 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 ------------------------------- Shot plan: Start with a repeat of 1120522031. (No reload required.) Allow RF to condition and make changes to shot as requested by SL. When SL requests USN target, I will import from 1120510030

Session Leader Summaries

Entered: May 23 2012 05:07:07:697PM

Author: Yijun Lin

D/E antennas have been conditioned to 1.3 MW each in USN plasmas and LSN plasmas. The H/(D+H) level started around 10%, ended at about 16%. Some problems in cross-talking bewteen the antennas, but they were able to run together for most of the shots today.

Physics Operator Summaries

Entered: May 23 2012 05:13:35:667PM

Author: Jerry Hughes

Today's run was devoted to conditioning of D- and E-port ICRF antennas, and combined operation of the LH launcher with D and E. The morning was used to get the H/D down in LSN configuration. Mid-day we switched to USN. PHYS OPS NOTE that we were operating this week and last with low throughput through the B-main piezo. We think that this valve will shortly be replaced and subsequent loads of these shots may need to have their PG3 (both feedforward and feedback) programming re-adjusted. Aside from a few fizzles and heavy runaway shots, machine performance was good. During the first half of the day, I made a lot of changes in the gas programming before I was able to obtain a robust startup. I played with the pre-fill quite a bit, dropping it early to avoid fizzles, but then re-raising it to try to mitigate runaways. I was also compelled to crank up the PG3 voltage around t=0, and to extend that pulse for the duration of segment 1. This extra voltage is presumably needed because of the reduced throughput on B-main. Beginning with shot 19 we had a series of good startups with full length plasmas, interupted by a fizzle on shot 28. Radiation was very high during ICRF operation, and MARFEs were prevalent. Very few injections were observed. The streak ended with a full current disruption on shot 33. For the last shot I reduced the pre-fill puff in order to stave off the five o'clock fizzle. However, this proved to be futile. H/(H+D) was down to the 15% level in our AM LSN shots. When we switched to USN, it creeped into the 20's, before reducing again to close to 15%. We may be close to boronization-ready. Final Tally: 24 Plasmas into rampdown 2 Flattop disruption 4 Early shutdowns 4 Fizzles 0 Duds

Session Leader Comments
May 23 2012 09:05:29:610AM	1120523001	Yijun Lin	plasma. D faults. E ok. LH faulted out. More conditioning of D is necessary. Next: Repeat.
May 23 2012 09:17:03:407AM	1120523002	Yijun Lin	plasma. disruption. D ok. E ok. LH stayed on a while. Next: Repeat with higher power.
May 23 2012 09:34:24:230AM	1120523003	Yijun Lin	plasma. D faults. E faults. need more conditioning... LH ran a while. H/(H+D) 16%..rising shot by shot. Next: Repeat. same power.
May 23 2012 09:40:56:703AM	1120523004	Yijun Lin	fizzle
May 23 2012 10:05:55:500AM	1120523005	Yijun Lin	plasma. disruption. D/E ran well. LH ran a while. H/(H+D)~ 17.5% Next: Repeat. raise RF power some more.
May 23 2012 10:19:41:253AM	1120523006	Yijun Lin	plasma. D/E ran with some faults. LH ran a while. H/(H+D) = 16%. lower than last shot. Next: Repeat. same power.
May 23 2012 10:32:44:330AM	1120523007	Yijun Lin	plasma. E ran ok. D faulted and faulted. LH ran a while. H/(H+D) = 15%.. lower even more.. Next: Lower E power. Just condition D antenna at 1.3 MW. (If we can get decent D antenna result, we will switch to Upper-null).
May 23 2012 10:41:04:300AM	1120523008	Yijun Lin	plasma ended 0.38 sec.
May 23 2012 10:59:18:450AM	1120523009	Yijun Lin	plasma. E ran ok. D faulted. LH ran a while. H/(H+D) = 14%. getting lower Next: Lower E power. continue conditioning D antenna at 1.3 MW.
May 23 2012 11:07:38:097AM	1120523010	Yijun Lin	fizzle.
May 23 2012 11:21:52:290AM	1120523011	Yijun Lin	run away shut down.
May 23 2012 11:40:42:787AM	1120523012	Yijun Lin	plasma. E ran ok. D ok. LH ran a while. H/(H+D) = 14% at 1.5 sec. It is rather stable. Next: try upper null, and make H/D level higher.
May 23 2012 12:03:40:730PM	1120523013	Yijun Lin	plasma. USN. E ran ok. D ok until higher powr. LH ran a while. H/(H+D) = 15% at 1.5 sec Next: Run LH later. Raise RF power.
May 23 2012 12:14:40:167PM	1120523014	Yijun Lin	early disruption.
May 23 2012 12:28:19:913PM	1120523015	Yijun Lin	early disruption.
May 23 2012 12:44:20:743PM	1120523016	Yijun Lin	plasma. USN. E ran ok. D ok. LH ran. Next: Raise RF power.
May 23 2012 12:59:09:350PM	1120523017	Yijun Lin	plasma. USN. E ran ok. D ok. LH ran H/(H+D) ~ 20% Next: Raise RF power.
May 23 2012 01:14:14:127PM	1120523018	Yijun Lin	plasma. USN. E ran ok. D ok. LH ran H/(H+D) ~ 20% Next: Raise RF power.
May 23 2012 01:26:53:380PM	1120523019	Yijun Lin	plasma. USN. E ran ok. D ok. LH ran H/(H+D) ~ 20% Next: Raise RF power.
May 23 2012 01:37:29:417PM	1120523020	Yijun Lin	plasma. USN. D ok. (E was programed zero) LH ran H/(H+D) ~ 20% Next: put back E.
May 23 2012 01:53:06:583PM	1120523021	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 20% Next: repeat.
May 23 2012 02:11:00:313PM	1120523022	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 20% Next: repeat. lower D/E power.
May 23 2012 02:27:19:867PM	1120523023	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 18%, not going higher... Next: repeat.
May 23 2012 02:42:45:707PM	1120523024	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 18%, not going higher... Next: repeat. (E to dummy load to sort out an issue of transmitter signals)
May 23 2012 02:57:43:403PM	1120523025	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 16% Next: repeat.
May 23 2012 03:13:18:953PM	1120523026	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 16% Next: repeat.
May 23 2012 03:29:25:027PM	1120523027	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 15%, it is getting lower... Next: repeat.
May 23 2012 03:39:47:693PM	1120523028	Yijun Lin	fizzle
May 23 2012 03:58:06:810PM	1120523029	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 13% getting lower slowly shot by shot... Next: repeat.
May 23 2012 04:14:35:530PM	1120523030	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 18% jumped higher... Next: repeat. more machine conditioning. Lower field from 5.46 to 5.40 for Nathan Howard.
May 23 2012 04:25:37:097PM	1120523031	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 15% Next: repeat. more machine conditioning. High RF power...
May 23 2012 04:40:57:323PM	1120523032	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 16% Next: repeat. more machine conditioning.
May 23 2012 04:59:17:837PM	1120523033	Yijun Lin	plasma. USN. D/E OK. LH ran H/(H+D) ~ 16% until disruption Next: repeat. more machine conditioning.
May 23 2012 05:07:02:937PM	1120523034	Yijun Lin	it is a 5'clock fizzle. end of run.

Physics Operator Comments
May 23 2012 09:03:44:443AM	1120523001	Jerry Hughes	Shot 1. Load PCS from model. Change title in Seg 2 to reflect actual Ip. Load at 23-May-2012 07:04:17.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Ready to go. Result: Plasma, full length.
May 23 2012 09:16:03:840AM	1120523002	Jerry Hughes	Shot 2. Have B-side lower enabled to supply Ar for Hirex. Result: Plasma. Disruption at 1.283s. Looks like something fell in.
May 23 2012 09:31:24:540AM	1120523003	Jerry Hughes	Shot 3. No PO changes Result: Plasma, full length. Some hesitation and bounce on startup, but it recovered. D and E went in. Some LH early, showing non-thermals, hard xrays.
May 23 2012 09:43:38:397AM	1120523004	Jerry Hughes	Shot 4. No PO changes. Result: Fizzle.
May 23 2012 10:01:58:993AM	1120523005	Jerry Hughes	Shot 5: Change: In seg 1, change PG4 pre-puff from 26ms to 24ms. Also, reduce PG3 program around t=0. Load at 23-May-2012 09:51:21.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, full length. Some early hards.
May 23 2012 10:16:27:667AM	1120523006	Jerry Hughes	Shot 6 No PO changes. Result: Plasma, full length. Still a few hards on startup.
May 23 2012 10:34:35:670AM	1120523007	Jerry Hughes	Shot 7. Changes: In seg 1, increase PG3 backporch at t=0 from ~60V to 80V. Reduce PG4 pre-puff from 24ms to 22ms Load at 23-May-2012 10:20:14.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, full length. More early hards. However, current rise looks better.
May 23 2012 10:47:54:187AM	1120523008	Jerry Hughes	Shot 8. Change: In seg1, extend end of PG3 back porch from 0.008s to 0.012s. Load at 23-May-2012 10:33:54.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Lots of hards in ramp up, shot aborted by DPCS_XJUMP at 0.34s.
May 23 2012 10:59:28:007AM	1120523009	Jerry Hughes	Shot 9. Changes: In seg2, increase proportional gain on nl_04 from 3 to 6. Also tweak nl_04 demand to increase target faster. In seg 1, delay end of PG3 back porch to 0.016s Load at 23-May-2012 10:50:58.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, full length. Got a little more gas from B-main that time. Hards before 0.010s are reduced.
May 23 2012 11:13:27:803AM	1120523010	Jerry Hughes	Shot 10. No PO changes. Result: Fizzle
May 23 2012 11:25:57:137AM	1120523011	Jerry Hughes	Shot 11. Changes: In seg 1, reduce PG3 back porch demand from 80V to 70V Load at 23-May-2012 11:15:44.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Early abort by DPCS at 0.2s, following another slow build of runaways.
May 23 2012 11:38:20:197AM	1120523012	Jerry Hughes	Shot 12 Changes: In seg 1 increase PG4 pre-fill from 22ms to 24ms. Load at 23-May-2012 11:28:56.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, full length. Startup is acceptable, I guess.
May 23 2012 12:06:41:933PM	1120523013	Jerry Hughes	Shot 13 Changes: SL requests USN shot: 1120510030 (0.8MA, USN) This shot has Seg 4 active. Import this into Seg 4 of model. Next increase proportional gain on nl_04 wire in Seg 4 from 3 to 6 (consistent with what I'm using in Seg 2). Also tweak nl_04 demand to get the density up quickly in ramp-up. Turn OFF Seg 2. Turn ON Seg 4. Load at 23-May-2012 11:45:27.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma into rampdown. Some early hards.
May 23 2012 12:16:37:493PM	1120523014	Jerry Hughes	Shot 14. Changes: In Seg 4, reduce Ar PG1 pulse from 150ms to 75ms. Also, tweak nl_04 demand to try to raise density in ramp-up. Load at 23-May-2012 12:05:35.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Early abort due to excessive hards.
May 23 2012 12:28:30:250PM	1120523015	Jerry Hughes	Shot 15. Changes: In seg 1, increase PG3 backporch from 70V to 80V. Load at 23-May-2012 12:18:40.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Another DPCS_XJUMP at around t=0.2s.
May 23 2012 12:42:57:177PM	1120523016	Jerry Hughes	Shot 16. Changes: Increase PG4 pre-fill from 24ms to 26ms. Load at 23-May-2012 12:30:56.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, full length. Still some early hards.
May 23 2012 12:57:39:310PM	1120523017	Jerry Hughes	Shot 17. Changes: In seg 1, extend end of PG3 backporch from 0.016s to 0.020s. Load at 23-May-2012 12:49:53.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, full length. Still a build-up of hards in ramp-up. Wolfe suggets abandoning the incremental approach and just extend the t=0 puff all the way to 100ms.
May 23 2012 01:11:42:207PM	1120523018	Jerry Hughes	Shot 18. Changes: In Seg 1, increase PG4 pre-fill from 26ms to 28ms. Add a lower deck to the PG3 back porch at 50V, extending all the way to 0.1s. Load at 23-May-2012 13:02:06.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma into ramp-down. Startup still has an early bounce. Hards are still prevalent in the ramp-up.
May 23 2012 01:24:43:913PM	1120523019	Jerry Hughes	Shot 19. Changes: In Seg 1, increase PG4 pre-fill from 28ms to 31ms. In Seg 1, increase lower back porch from 50V to 70V. In Seg 4, increase nl_04 demand in ramp-up Load at 23-May-2012 13:18:25.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma into rampdown. Startup and ramp-up are fairly clean.
May 23 2012 01:38:53:230PM	1120523020	Jerry Hughes	Shot 20. No PO changes Result: Plasma, full length. Good startup.
May 23 2012 01:59:14:737PM	1120523021	Jerry Hughes	Shot 21. No PO changes Result: Plasma into rampdown. Startup looks good. Message from mdsplus@alcdaq3.psfc.mit.edu Shot 1120523021: mag_bp_coils.signals:bp25_de has a baseline offset 1.1E-02
May 23 2012 02:10:26:470PM	1120523022	Jerry Hughes	Shot 22. No PO changes Result: Plasma, full length. Decent startup.
May 23 2012 02:56:34:587PM	1120523023	Jerry Hughes	Shot 23. No PO changes. Result: Plasma, full length
May 23 2012 02:56:57:433PM	1120523024	Jerry Hughes	Shot 24. No PO changes. Result: Plasma, full length
May 23 2012 02:56:47:900PM	1120523025	Jerry Hughes	Shot 25. No PO changes. Result: Plasma, full length
May 23 2012 03:17:13:597PM	1120523026	Jerry Hughes	Shot 26. Changes: In seg 4, increase nl_04 demand in flattop from 7e19 to 9e19. (This is for Cornwall) Load at 23-May-2012 14:58:41.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma into rampdown. Reaches higher target density during RF phase.
May 23 2012 03:24:44:043PM	1120523027	Jerry Hughes	Shot 27 No PO changes Result: Plasma into rampdown.
May 23 2012 03:43:29:680PM	1120523028	Jerry Hughes	Shot 28 No PO changes Result: Fizzle
May 23 2012 03:51:33:147PM	1120523029	Jerry Hughes	Shot 29 No PO changes. Result: Plasma into rampdown.
May 23 2012 04:10:36:560PM	1120523030	Jerry Hughes	Shot 30 No PO changes. Result: Plasma, into rampdown. MARFE throughout most of flattop.
May 23 2012 04:30:31:217PM	1120523031	Jerry Hughes	Shot 31 Changes: Request has come from CECE to reduce Bt to 5.40T from 5.46T. TF is currently programmed to be -150kA in flattop in Seg 4. Change to -150000 A * (5.40/5.46) = -148350 A Load at 23-May-2012 16:17:44.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma into rampdown. Bt is close to 5.40.
May 23 2012 04:38:35:310PM	1120523032	Jerry Hughes	Shot 32 No PO changes Result: Plasma into rampdown
May 23 2012 04:57:39:523PM	1120523033	Jerry Hughes	Shot 33 CECE requests another TF change. 5.4T --> 5.3t Changes: In Seg 4 change TF program from -148350 A to -145600 A While I'm at it, the field in Seg 1 is higher than normal. Reset the TF in Seg 1 to -150000 A. Load at 23-May-2012 16:47:10.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma, ugly. Disruption at 1.367s.
May 23 2012 05:01:36:787PM	1120523034	Jerry Hughes	Shot 34. Change: In seg 1, reduce PG4 pre-fill from 31ms to 28ms, and cross fingers. Load at 23-May-2012 17:01:27.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result:

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:57:37:360AM	Plasma	Ok
2	09:11:08:173AM	Plasma	Ok
3	09:24:43:410AM	Plasma	Ok
4	09:38:12:903AM	Plasma	Ok
5	09:51:48:697AM	Plasma	Ok
6	10:11:03:067AM	Plasma	Ok
7	10:24:22:953AM	Plasma	Ok
8	10:37:39:557AM	Plasma	Ok
9	10:51:36:623AM	Plasma	Ok
10	11:04:59:047AM	Plasma	Ok
11	11:18:58:013AM	Plasma	Ok
12	11:32:12:187AM	Plasma	Ok
13	11:53:45:730AM	Plasma	Ok
14	12:10:02:297PM	Plasma	Ok
15	12:23:18:127PM	Plasma	Ok
16	12:36:47:680PM	Plasma	Ok
17	12:51:33:710PM	Plasma	Ok
18	01:05:36:813PM	Plasma	Ok
19	01:19:35:630PM	Plasma	Ok
20	01:33:26:947PM	Plasma	Ok
21	01:47:49:980PM	Plasma	Ok
22	02:02:31:487PM	Plasma	Ok
23	02:20:07:640PM	Plasma	Ok
24	02:36:08:243PM	Plasma	Ok
25	02:49:37:197PM	Plasma	Ok
26	03:03:15:617PM	Plasma	Ok
27	03:18:00:093PM	Plasma	Ok
28	03:33:24:843PM	Plasma	Ok
29	03:47:00:750PM	Plasma	Ok
30	04:04:27:167PM	Plasma	Ok
31	04:18:29:443PM	Plasma	Ok
32	04:33:34:957PM	Plasma	Ok
33	04:50:29:977PM	Plasma	Ok
34	05:03:41:500PM	Plasma	Ok

System Availability

May 23 2012 08:57:17:287AM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD no secured - tagged out Jun 2 2008 11:03:58:433AM (sears) Joe Snipes Active MHD Antenna golfit BES yes BES system is online Nov 22 2011 02:21:12:050PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes Midplane diodes functioning properly. Midplane bolometers working and calibrated. DIV bolometers installed but not yet toaster calibrated Apr 20 2012 09:57:29:520AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no Bottle has been disconnected from gas lines and plugged. It is being stored in the diborane cabinet. Feb 29 2012 07:47:39:617AM (dekow) Jim Irby Boronization dekow,irby CECE no   Jan 6 2012 03:48:47:060PM  Anne White Correlation ECE whitea CNPA yes Multiple channel CNPA available, no safety risk for in-vessel access Apr 14 2011 12:01:59:693PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no Off line. Helium dewar to be installed Monday 5/14/12 May 10 2012 08:45:54:900AM (labombard) Brian LaBombard Upper Divertor Cryopump dekow,irby,labombard CXRS yes core-CXRS system is online Nov 22 2011 02:21:22:280PM (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 11:44:46:247AM (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 1 2009 09:45:41:090AM (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 5 2011 02:41:42:867PM (marmar) Earl Marmar Visible Bremsstrahlung Imaging marmar Disruption Mitigation yes two gas jet valves active as of Feb 2012 May 15 2012 10:09:23:597AM (granetz) Robert Granetz Gas Jet granetz,whyte Divertor IR no   Mar 6 2007 10:50:41:677AM  Glen Wurden Divertor IR Digital Video gwurden,terry Divertor IR Spectroscopy no   Mar 6 2007 10:51:39:897AM  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 1 2012 01:24:23:953PM (golynyk) Geoff Olynyk Set of six AXUV diodes in a toroidal array of midplane wall boxes. golynyk,granetz,mlreinke,whyte DNB yes "The beam could break at any moment." May 15 2012 10:09:52:470AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,mochung ECDC yes   Apr 26 2012 03:23:19:057PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE yes FRC-ECE is online May 14 2012 11:53:01:693AM (bespam) Perry Phillips Heterodyne ECE-32 channels bespam,liao,phillips,rowan,whitea FTCI yes System Operational May 14 2012 11:50:45:590AM (irby) Jim Irby Fast two-color interferometer irby G-Side Ratiomatic yes Installed April 25,2012 May 1 2012 05:03:39:313PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no HV cables disconnected and power supplies off. Electrical plugs have been disconnected, capped and red tagged. Mar 5 2012 10:21:53:460AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Operational Apr 27 2012 07:41:46:907AM (hubbard) Amanda Hubbard ECE Polychromater hubbard GPC2 yes Operational Apr 27 2012 07:42:03:317AM (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 1 2009 09:45:50:933AM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes system is functional and taking data Dec 5 2011 02:42:29:857PM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Apr 26 2012 03:23:49:607PM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36:33:420PM (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 6 2011 08:21:02:453AM (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 12:05:24:810PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna yes conditioning May 1 2012 10:31:59:277AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes conditioning May 1 2012 10:31:48:860AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna no secured Feb 29 2012 11:12:32:567AM (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 11:46:02:193AM (blip) Bruce Lipshultz Measurement of recycling light and impurity source rates at multiple surfaces around the tokamak blip,miller Laser Blow-Off yes Pumped Down, Laser has not yet been tested but otherwise operational May 14 2012 04:31:17:037PM (nthoward) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid no LH is now safe for manned entry into machine. Positioner locked and tagged off. Switches locked in dummy load position. Mar 2 2012 02:34:28:943PM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer no off Apr 15 2011 08:24:27:930AM (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. Apr 20 2012 10:43:34:077AM (mlreinke) Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometer markchil,mlreinke LPI no Beam line removed May 30 2008 02:09:12:833PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane Lyman-a. New B-PORT Lyman (BPLY) still being debugged. Apr 20 2012 10:44:00:540AM (mlreinke) Matt Reinke Lyman alpha cameras faustian,labombard,mlreinke Magnetics yes   Dec 1 2011 11:51:51:970AM (g) Robert Granetz Bp coils and flux loops for equilibrium control granetz,wolfe McPherson no McPherson viewing the 10-14 nm region for molybdenum monitoring. It's days are numbered as LoWEUS has demonstrated superiority. Apr 20 2012 10:44:10:937AM (mlreinke) Jim Terry VUV Spectrometer markchil,mlreinke,terry Michelson yes Vacuum 3-4e-8 T. Starting with Michelson at reduced speed. Apr 27 2012 07:42:41:960AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes   Dec 2 2011 12:27:47:163PM (toland) Brian LaBombard Baratron pressure gauges labombard,toland MLP yes Operational. Connected to A-port probe system May 10 2012 08:40:19:910AM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE yes 2/29/2012 MSE operational. No HV or vacuum safety issues Feb 29 2012 12:26:13:863PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Voltage 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 Fiore Neutron Detectors fiore Neuts and Hards yes All detectors Powered On --- Waiting for neutrons for calibration Nov 22 2011 01:05:24:380PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA yes C-bottom and new F-bottom system ready. Dec 2 2011 12:28:44:843PM (toland) Brian LaBombard NINJA gas puff labombard,terry,toland PCI yes Operational. May 1 2012 08:31:33:743AM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab Penning Gauges yes HV power supplies turned ON in INIT, off in RECOOL May 10 2012 08:41:03:000AM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 1 2009 09:46:29:543AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter yes 3 chords operational but with high noise level Jan 6 2012 04:22:20:903PM (irby) Jim Irby C-Mod Polarimeter irby Power - Alternator Air Switch yes   Apr 26 2012 03:24:21:607PM (dekow) Gary Dekow Alternator to Power Room Power Supply Connection cochran,dekow,dterry,irby Power - PEI yes   Apr 26 2012 03:24:41:250PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Apr 26 2012 03:24:57:153PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Apr 26 2012 03:25:14:497PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational. Some dead probes. May 10 2012 08:41:58:120AM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational. 4 out of 6 probes working. May 10 2012 08:41:40:557AM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Operational. May 10 2012 08:42:13:733AM (labombard) Brian LaBombard Outer Lower Divertor Probe Array (F and J) labombard Probe Array - UDIV yes Operational. Some dead probes. May 10 2012 08:42:32:663AM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes As of 1120508, the 60, 75, 88s, 112, 140 and variable are connected and turned on. May 8 2012 10:33:21:567AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational. A variety of probe heads are ready for use. May 10 2012 08:43:10:937AM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. May 10 2012 08:43:24:887AM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP no Not functioning. Probe tips are melted. Repair not performed during break. May 10 2012 08:44:43:137AM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Shoelace Antenna yes Operational May 10 2012 08:45:08:320AM (labombard) Brian LaBombard High-k active MHD antenna, for QCM, WCM studies golfit,labombard SOL reflectometer yes c-port (top, middle, bottom) and h-port available. Only 1 of 4 locations can be used for each discharge May 1 2012 04:54:58:820PM (cornwall) Cornwall Lau SOL reflectometer cornwall,wukitch,ylin Sparker yes Sparker Power Supply powered up. Connected at K port using red cable 4/23/12 9:25AM Apr 23 2012 12:06:10:983PM (parkin) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station no SSS is up to air, no safety issues. Feb 27 2012 01:51:48:783PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes TCI lasers in operation May 14 2012 11:51:18:700AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with one 50Hz laser, precise density calibration still required. May 9 2012 03:12:32:050PM (jwhughes) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma TS - Edge yes Operating with one 50Hz laser, precise density calibration still required. May 9 2012 03:12:51:363PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jrwalk,jwhughes,yma Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58:35:493AM (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. Apr 20 2012 10:43:43:107AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer markchil,mlreinke XTOMO yes ARRAY1->5 available. Specific channels on various arrays display issues. Apr 20 2012 05:36:28:523PM (faustian) Robert Granetz X-Ray Tomography faustian,granetz,mlreinke

May 24 2012 09:42:58:300AM

after the shot #32, the 75 GHz waveguide between the receiving WR-42 to WR-12 taper and the WR-42 is disconnected. (compare #31,#33, digitizer channel #27)