Miniproposals

Miniproposal: 699 Date Filed: 5/7/2012 Title: Explore LHCD efficiency at high denisty with H(He-3) plasma First Author: Syunichi Shiraiwa Session Leader: Syunichi Shiraiwa (shots 1-27)

Engineering Operator Run Comment

MP699: Explore LHCD efficiency at high density with H(He-3) plasma

Session Leader Plans

Entered: Jul 27 2012 11:07:12:933AM

Author: Syunichi Shiraiwa

*DRAFT* MP699: Explore LHCD efficiency at high density with H(He-3) plasma SL: S. Shiraiwa PO: G. Wallace Goal of this MP is to test to reproduce previous He3 minority MC heated plasma and apply LHCD to see the benefit of higher Te target plasma. A target shot is 950608017. (Ip 800kA, Bt 6.3T, LSN). Reference shots for control system are 1120710020 (USN), 6 (LSN) Step 0: ECDC using H2 Step 1: switch over to H2 plasma and reproduce the core electron heating observed in 950608017. (10 shots including the switch-over) Start with USN case. Previous experince indicates the importance of right amount of He fraction and minimize D2, therefor we will try H breakdown. He3 concentration is scanned to compare the mode-conversion regime and minority heating regime and find a optimum to obtain highest Te. PCI will be used to monitor the MC layer location ICRF from 0.65-1.4s ne_bar = 1.0-1.2e20 LH from 0.8-1.3s 90deg to adjust coupling 2-1 Apply LHCD (5 shots, including one �??non-ICRF" discharge) LHCD from 0.9-1.4s 75, 90, 120 deg phasing for a reference. If higher phasing is possible, include 145 deg. Scanning probe for SOL profile measurement. (making a notch in RF pulse...?) 2-2 to take ohmic control case. 3. Repeat step 2 with ne_bar = 1.4e20 (5 shots) 4. Repeat step 2 with ne_bar = 0.7e20 (5 shots) 5. If time is available, change Ip to 600kA and/or 1200kA and repeat step 2. (5 shots) Gas Request ===================================== Please see PO plan AUX system ===================================== Boronization: no Impurity injector: no ICRF: yes (E+J, D if works well with LH) LH: yes DNB: Cryopump: yes Dagnostics request ===================================== Thomson (core+edge), HXR camera, LH probes, TCI, GPC (6.3 Tesla, non-theraml ECE), HIREXSR (Ti and MCFD), XTOMO (core+edge), PCI (He concentration) GPI (edge power abs.) X-mode reflectometer (on LH launcher)

Physics Operators Plans

Entered: Jul 27 2012 09:04:15:740AM

Author: Greg Wallace

----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1120710020 Change TF limit to 182 kA for 6.3 T operation. Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled Gas setup: (Note non standard gas setup!!!) Fill B-Top with 6 psi H2 Hybrid enabled (PG4) Fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1) Fill B-side upper with 15 psi He3 Hybrid enabled (PG2) fill B-main (C-side) with 40 psi H2 Hybrid enabled (PG3) leave NINJA as is 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. NON-STANDARD H2 ECDC OVERNIGHT! ICRF(yes/no): yes LH(yes/no): yes Cryopump (yes/no): yes DNB (yes/no): no Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: H2 at 2e-4 Torr (NOTE NON-STANDARD HYDROGEN OVERNIGHT ECDC!) sweep: 44/45/103 cm scan: 20/120 s

Session Leader Summaries

Entered: Jul 27 2012 03:42:48:790PM

Author: Syunichi Shiraiwa

Clean LH+ICRF(J) Next: No ICRF

Entered: Jul 27 2012 04:24:30:780PM

Author: Syunichi Shiraiwa

Fizzle

Entered: Jul 27 2012 05:44:25:747PM

Author: Syunichi Shiraiwa

It was a difficult run day today. We had several technical issues including slowing down of computer system, power supply break fault, delay due to alternator... Major difficult was to make a target plasma reliably. We got 6 fizzle + 9 disruptions before 0.7s. 3 of them are early runaway shut down. Part of the difficult may be due to H2 breakdown, although previous experiments did not have a big problem. We got 5 full length plasma and 2 shots sustained enough (>1s). Nonetheless, there is interesting finding and good news from today's experiment. Shot 7 and 12 shows a good comparison of OH plasma and ICRF MC heated plasma. With 2MW of ICRF Te0 reaches transiently 5keV, average (3-3.5keV) compared to 2keV for OH. PCI shows MC layer located close to center on this shot. Interestingly, we found a good current drive at ne ~ 1.1e20, even with OH! (shot 23). Comparison of shot 20 and 23 suggests that LHCD can produce similar amount of fast electrons independent from ICRF. Generating fast electrons in ICRF heated plasma at this density is probably good news, although it sounded me contradictory to our previous experience to a large degree...

Physics Operator Summaries

Entered: Jul 27 2012 05:19:49:900PM

Author: Greg Wallace

Physop Summary for 1120727 Today's run was in hydrogen majority with helium-3 minority. Breakdown in hydrogen as well. Getting a good startup proved problematic with many fizzles and runaway shutdowns. Also many disruptions due to injections (caused by weak absorption of the mode-converted ICRF?) which caused the usual post-disruption fizzle. Some computer problems in the morning slowed down the start of the run. The PCS was running very very slowly in the morning. Wolfe suggested a workaround to make it run faster by storing files in a tmp directory rather than grabbing data from the tree for each operation. Instructions as follows: 1) Open a new terminal 2) type "export pcs_scratch=/tmp" and hit enter to set up a scratch directory in tmp 3) type "/usr/local/cmod/codes/pcs/pcs" and hit enter to launch pcs from the command line This fix reduced the time to load a shot from > 2 min to 15 s.

Session Leader Comments
Jul 27 2012 10:05:29:100AM	1120727002	Syunichi Shiraiwa	Fizzle. Large Ha singal without C2 signal. Also vessel pressure was too high compared to 1120207020.
Jul 27 2012 10:20:32:400AM	1120727003	Syunichi Shiraiwa	Got a plasma Disrupted at 0.9s Next: asked to start ICRF at 0.35s add Ar puf from 0.3s (75ms)
Jul 27 2012 11:00:01:643AM	1120727004	Syunichi Shiraiwa	(post disruption ?) Fizzle
Jul 27 2012 11:39:03:767AM	1120727005	Syunichi Shiraiwa	Disrupted at 0.55s Absorption moved outward in this shot. Next: Reduce He3 to 150ms Reduce ICRF power to 2MW Dealy ICRF start at 0.6s
Jul 27 2012 11:59:06:560AM	1120727007	Syunichi Shiraiwa	Got a full length plasma LH did not couple. LH density may be too low. heating looks good, Te0 reaches 5keV transiently. Next: reduce outer gap for coupling increase ICRF J port power to 2MW add 40ms notch to RF power at 0.9 s and 1.1s use A-port scanning during notch. edge H2 puff at 1.2s for CXRS
Jul 27 2012 12:10:38:603PM	1120727008	Syunichi Shiraiwa	Disrupted after RF starts. Next: start J power at 1.3MW and increase to 2MW in time, with the same two notchs
Jul 27 2012 12:46:16:930PM	1120727010	Syunichi Shiraiwa	Disrupted at 0.65s Next: increase RF from 1MW to 3MW in time add notch to 0.6s, too
Jul 27 2012 01:13:35:377PM	1120727012	Syunichi Shiraiwa	2nd full length plasma....;D but no icrf power
Jul 27 2012 01:36:56:323PM	1120727013	Syunichi Shiraiwa	Disruption at 1.25s
Jul 27 2012 01:53:59:047PM	1120727013	Syunichi Shiraiwa	had LH and ICRF together for the first time. Next: reduce He3 to 100ms (from 150ms)
Jul 27 2012 01:54:21:507PM	1120727014	Syunichi Shiraiwa	Full length plasma...
Jul 27 2012 02:08:41:130PM	1120727014	Syunichi Shiraiwa	Full length plasma... Deposition moves inward by 3-5cm, accroding to PCI non-thermal is about 2keV at 1s. Next: 200ms He increase LH to 500kW (from 300kW)
Jul 27 2012 02:13:41:830PM	1120727015	Syunichi Shiraiwa	runaway shut down.
Jul 27 2012 02:24:05:733PM	1120727016	Syunichi Shiraiwa	runaway shut down.
Jul 27 2012 02:37:58:550PM	1120727017	Syunichi Shiraiwa	fizzle? dud?
Jul 27 2012 02:51:26:903PM	1120727018	Syunichi Shiraiwa	dirupted at 0.3s

Physics Operator Comments
Jul 27 2012 09:51:09:790AM	1120727001	Greg Wallace	Changes: Load seg 1 from yesterday. Import PG3 and PG4 waveforms from seg 1 of 1110207020 (last day with breakdown in H2 and cryo on). Seg 1 on. Load seg 2 from 1120710020 seg 3 (USN). Change Ip to 800 kA and Bt to 6.3 T. PG2 puff from .2 to .4 s (He3). Seg 2 on. Load seg 3 from 1120710006 seg 2 (LSN). Change Ip to 800 kA and Bt to 6.3 T. PG2 puff from .2 to .4 s (He3). Seg 3 off. Load seg 4 from 1120705006 seg 3 (locked mode). Leave as is. Seg 4 off. Result: Critical failure in init. No power shot. Magnetics and probes errors. Next shot: Try again for plasma.
Jul 27 2012 10:07:23:603AM	1120727002	Greg Wallace	Changes: Try again for plasma. Result: Fizzle. Fields look OK. Breakdown at ~5 ms. No CIII light---doesn't burn through? Next shot: Reduce early PG4 puff from 55 to 50 ms. Took PCS 2m41s to load shot. Try again.
Jul 27 2012 10:23:49:517AM	1120727003	Greg Wallace	Changes: Reduce early PG4 puff from 55 to 50 ms. Took PCS 2m41s to load shot. Try again. Result: Plasma! Breakdown in H2. Disruption at 0.9 s. Looks like a brick, not from LH. Density very high during ICRF. LH faulting due to poor coupling. No LH camera. Next shot: Decrease outer gap by 5mm (RCUR from 0.656 to 0.6585) to improve LH coupling.
Jul 27 2012 11:02:13:680AM	1120727004	Greg Wallace	Changes: Decrease outer gap by 5mm (RCUR from 0.656 to 0.6585) to improve LH coupling. Enable Ar puff (0.3-0.375 s). Result: Fizzle. Late breakdown and higher gas pressure than shot 3. PCS is still loading very slowly. Next shot: Decrease PG4 pre-puff from 50 to 45 ms.
Jul 27 2012 11:26:42:500AM	1120727005	Greg Wallace	Changes: Decrease PG4 pre-puff from 50 to 45 ms. Result: Plasma. Less Ip hesitation than shot 3. Disruption at .48 s. PF breaker pulled. Power room access to check fuses. Next shot: Move He3 puff (PG2) earlier (.1-.3 s instead of .2-.4 s). Reduce PG4 pre-puff from 45 to 40 ms to account for the disruption.
Jul 27 2012 11:43:35:000AM	1120727006	Greg Wallace	Changes: Move He3 puff (PG2) earlier (.1-.3 s instead of .2-.4 s). Reduce PG4 pre-puff from 45 to 40 ms to account for the disruption. Result: Plasma. Disruption at 0.52 s this time. Earlier He3 puff didn't seem to help much. Still getting injections from GH limiter. Big board not updated with new shot #. Next shot: Move ICRF pulse to start at 0.6 s and reduce to 2 MW. Reduce He3 puff from 200 to 150 ms.
Jul 27 2012 11:57:10:497AM	1120727007	Greg Wallace	Changes: Move ICRF pulse to start at 0.6 s and reduce to 2 MW. Reduce He3 puff from 200 to 150 ms. Result: Plasma through rampdown. LH faulting continuously. Looks like very poor coupling again. Next shot: Increase Ar puff from 75 to 100 ms. Decrease outer gap by 1cm to improve LH coupling (increase RCUR from .6585 to .6635). Increase power from J but not E. Add notches in the E waveform to allow LH Langmuir probe measurements to clear up.
Jul 27 2012 12:09:19:777PM	1120727008	Greg Wallace	Changes: Increase Ar puff from 75 to 100 ms. Decrease outer gap by 1cm to improve LH coupling (increase RCUR from .6585 to .6635). Increase power from J but not E. Add notches in the E waveform to allow LH Langmuir probe measurements to clear up. Result: Plasma. Disruption at .69 s. Mo, W, Fe cocktail. Next shot: ICRF power ramp starting at 1MW to determine maximum safe power level.
Jul 27 2012 12:28:47:353PM	1120727009	Greg Wallace	Changes: ICRF power ramp starting at 1MW to determine maximum safe power level. Result: PF breaker pulled. Disruption at .85 s, but current starts ramping down at .58 s. Power room access to investigate. Next shot: Decrease proportional gain on nl_04 feedback from 5 to 3 to help stabilize density feedback.
Jul 27 2012 12:43:30:780PM	1120727010	Greg Wallace	Changes: Decrease proportional gain on nl_04 feedback from 5 to 3 to help stabilize density feedback. Result: Plasma. Early hard x-rays. Mo injection causes disruption. Next shot: Increase PG4 pre-puff from 40 to 45 ms. ICRF power ramp will be more gradual.
Jul 27 2012 12:54:29:780PM	1120727011	Greg Wallace	Changes: Increase PG4 pre-puff from 40 to 45 ms. ICRF power ramp will be more gradual. Result: No power shot. Next shot: Try again.
Jul 27 2012 01:33:17:073PM	1120727012	Greg Wallace	Changes: Increase PG4 pre-puff from 40 to 45 ms. ICRF power ramp will be more gradual. Result: Plasma through rampdown. No ICRF fired. LH faulted continuously. Reflections not especially high. Power room access to fix ICRF. Next shot: Increase LH trip levels.
Jul 27 2012 01:50:35:280PM	1120727013	Greg Wallace	Changes: Increase LH trip levels. Result: Plasma disrupts at 1.25 s. Next shot: Reduce outer gap by 4 mm to improve LH coupling (increase RCUR from .6635 to .6655). Decrease He3 puff to 100 ms (.1-.2 s).
Jul 27 2012 02:08:47:860PM	1120727014	Greg Wallace	Changes: Reduce outer gap by 4 mm to improve LH coupling (increase RCUR from .6635 to .6655). Decrease He3 puff to 100 ms (.1-.2 s). Result: LH performed well at 90 deg, not so much at 105. Next shot: Increase derivative gain on nl_04 from 6 to 8 to improve density control. Increase He3 puff to 200 ms. Increase LH power to 120 kW/klystron, constant 90 deg phasing (~500 kW net).
Jul 27 2012 02:15:59:313PM	1120727015	Greg Wallace	Changes: Increase derivative gain on nl_04 from 6 to 8 to improve density control. Increase He3 puff to 200 ms. Increase LH power to 120 kW/klystron, constant 90 deg phasing (~500 kW net). Result: Plasma. Runaway shutdown at .11 s, disruption at .17 s. Next shot: Increase early PG3 puff from 10 to 20 ms (now .01 to .03 s) to reduce runaways.
Jul 27 2012 02:35:24:143PM	1120727016	Greg Wallace	Changes: Increase early PG3 puff from 10 to 20 ms (now .01 to .03 s) to reduce runaways. Result: Runaway shutdown again. Major fireworks visible on left side of WIDE2. Bounce at .027 s and hards start from there. Next shot: Change DPCS_XJUMP jumpto time from 1.6 to 1.8 s to improve runaway shutdown. Move PG3 puff earlier and add tail end at 40 V.
Jul 27 2012 02:44:30:457PM	1120727017	Greg Wallace	Changes: Change DPCS_XJUMP jumpto time from 1.6 to 1.8 s to improve runaway shutdown. Move PG3 puff earlier and add tail end at 40 V. Result: Fizzle. Too much gas? Next shot: Move end of PG3 seg 1 flattop from -.01 s to -.013 s.
Jul 27 2012 03:05:27:843PM	1120727018	Greg Wallace	Changes: Move end of PG3 seg 1 flattop from -.01 s to -.013 s. Result: Disruption at 0.3 s. OH resistance warnings on LH1, OH2U, OH2L. Ip starts to roll over at 0.2 s. Breakdown a little late. Next shot: Try again.
Jul 27 2012 03:25:38:130PM	1120727019	Greg Wallace	Changes: Try again. Result: Plasma through rampdown. Poor LH coupling during ICRF. Next shot: Increase LH trip levels. Decrease outer gap by 2 mm more (RCUR from .6655 to .6665).
Jul 27 2012 03:39:12:383PM	1120727020	Greg Wallace	Changes: Increase LH trip levels. Decrease outer gap by 2 mm more (RCUR from .6655 to .6665). Result: Plasma through rampdown. Clean LH pulse. Next shot: Turn off ICRF. Increase LH from 140 to 170 kW/klystron. Add ramp from 7e19 to 8e19 on nl_04 between 1.1 and 1.3 s.
Jul 27 2012 03:50:40:750PM	1120727021	Greg Wallace	Changes: Turn off ICRF. Increase LH from 140 to 170 kW/klystron. No DPCS changes. Result: Disruption at 0.4 s. Startup looks OK, but things go awry at switch to seg 2. Next shot: Correct Ip and ZCUR jumps at segment switch. Seg 2 now starts at 500 kA and 0.0 m.
Jul 27 2012 04:07:34:490PM	1120727022	Greg Wallace	Changes: Correct Ip and ZCUR jumps at segment switch. Seg 2 now starts at 500 kA and 0.0 m. Result: Startup OK. Disruption at 0.32 s. Next shot: Move early RCUR ramp to start at 0.2 s and end at 0.3 s.
Jul 27 2012 04:28:13:680PM	1120727023	Greg Wallace	Changes: Move early RCUR ramp to start at 0.2 s and end at 0.3 s. Result: Plasma. Clean LH pulse. No ICRF (Ohmic baseline shot). Next shot: Repeat with ICRF.
Jul 27 2012 04:35:09:933PM	1120727024	Greg Wallace	Changes: Repeat with ICRF. Result: Fizzle. Late breakdown. Bz0 is is slightly higher as is F-side pressure. Next shot: Increase nl_04 demand from 7e19 to 7.75e19. Otherwise repeat.
Jul 27 2012 04:43:53:897PM	1120727025	Greg Wallace	Changes: Increase nl_04 demand from 7e19 to 7.75e19. Otherwise repeat. Result: Fizzle. Pressure still a little high. Current ramp rolls over at 0.15 s. Bz0 still creeping up. Late breakdown again. Next shot: Make IC_EF4U 15 A more negative. Decrease PG4 pre-puff from 45 to 40 ms. Set nl_04 demand flat at 8e19.
Jul 27 2012 05:06:24:023PM	1120727026	Greg Wallace	Changes: Make IC_EF4U 15 A more negative. Decrease PG4 pre-puff from 45 to 40 ms. Set nl_04 demand flat at 8e19. Result: Plasma. Disruption at 1.05 s. Next shot: Increase nl_04 demand from 8e19 to 9e19.
Jul 27 2012 05:05:53:923PM	1120727027	Greg Wallace	Changes: Increase nl_04 demand from 8e19 to 9e19. Result: Fizzle. Last shot of the day.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:10:13:920AM	Plasma	Bad	No Powshot. Critical Failure during init
2	09:51:50:463AM	Plasma	Ok
3	10:07:18:350AM	Plasma	Ok
4	10:49:00:860AM	Plasma	Ok
5	11:06:53:130AM	Plasma	Ok	PFopened after plasma disruption
6	11:27:00:203AM	Plasma	Ok
7	11:41:42:207AM	Plasma	Ok
8	11:57:29:963AM	Plasma	Ok
9	12:11:46:540PM	Plasma	Bad	EF1L Supply Failed
10	12:30:41:080PM	Plasma	Ok
12	01:07:58:027PM	Plasma	Ok
13	01:33:45:413PM	Plasma	Ok
14	01:51:02:217PM	Plasma	Ok
15	02:07:25:727PM	Plasma	Ok
16	02:19:51:553PM	Plasma	Ok
17	02:35:51:320PM	Plasma	Ok
18	02:48:19:667PM	Plasma	Ok
19	03:06:00:727PM	Plasma	Ok
20	03:24:47:150PM	Plasma	Ok
21	03:40:02:707PM	Plasma	Ok
22	03:53:30:587PM	Plasma	Ok
23	04:07:44:153PM	Plasma	Ok
24	04:21:59:257PM	Plasma	Ok
25	04:35:37:827PM	Plasma	Ok
26	04:49:32:200PM	Plasma	Ok
27	05:03:34:160PM	Plasma	Ok

System Availability

Jul 27 2012 11:42:00:063AM

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 yes   Jun 15 2012 05:02:46:313PM (dekow) Jim Irby Boronization dekow,irby CECE yes The system is currently operational for Te tilde measurement. Talk to Choongki about the current configuration Jul 3 2012 04:38:00:317PM (nthoward) Anne White Correlation ECE nthoward,sck83,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 yes   Jun 15 2012 05:02:31:550PM (dekow) 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. New controller installed 5/29/2012 Jun 7 2012 10:40:00:957AM (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   May 31 2012 09:20:06:827AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes   May 31 2012 09:19:57:640AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes   May 31 2012 09:19:47:443AM (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 yes LH is now available for plasma operation up to ~900 kW net power. Jul 3 2012 02:50:00:693PM (wallaceg) 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 no Midplane Lyman-a not functioning. New B-PORT Lyman (BPLY) still being debugged. Jul 12 2012 08:52:28:233AM (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 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 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. Jul 10 2012 07:08:06:883PM (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 On 1120608, the high frequency channels: 112, 140 and the variable, have been disconnected for some troubleshooting. All other channels are connected Jun 14 2012 11:28:59:603AM (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 yes SSS is under vacuum and fully available. Jul 3 2012 02:46:59:753PM (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 both lasers, density calibration ongoing. Jul 19 2012 10:20:09:220AM (jrwalk) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma TS - Edge yes Operating with both lasers, density calibration ongoing. Jul 19 2012 10:20:28:323AM (jrwalk) 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