Miniproposals

Miniproposal: 624 Date Filed: 11/19/2010 Title: Measurements of mode converted waves in D-3He plasmas with phase contrast imaging First Author: Naoto Tsujii Session Leader: Naoto Tsujii (shots 1-32)

Engineering Operator Run Comment

MP624: Measurements of Mode Converted Waves in D-He3 Plasmas with Phase

Session Leader Plans

Entered: Mar 22 2011 09:19:47:857PM

Author: Naoto Tsujii

Run plan: 1110323 MP624: Measurements of Mode Converted Waves in D-He3 Plasmas with Phase Contrast Imaging Bt: 5.4-5.8 T Ip: 0.6-1.4 MA nl04 ~ 0.6-1.2e20 m^-2 Working Gas Species: D2 Boronization Requested: No Standard ECDC Overnight Diagnostics: Standard profile measurements, PCI, ECE -- The goal is to have measurements in steady rf heated plasmas, with high He3 fraction and on axis mode conversion. Run J antenna at different power levels to see if there is any optimum for mode conversion. Switch to He4 plasma later in the day for CXRS calibration. -- 1. Start from higher He3 fraction. 150 ms He3 puff, 0.8 MA, 5.4 T, nl04 = 0.9e20 m^-2, LSN. Switch to USN once He3/e ~ 0.3. He3 puff would need to be increased to 200-300 ms. Increase Bt as necessary for mode conversion layer ~ 0.69 m. RF waveforms: 180:0.50-0.95 s, +90:1.00-1.45 s, 0.5 MW -90:0.50-0.95 s, 180:1.00-1.45 s, 0.5 MW *180:0.50-1.45 s, 1.0 MW +90:0.50-1.45 s, 1.0 MW -90:0.50-1.45 s, 1.0 MW 180:0.50-1.45 s, 1.8 MW 180:0.50-1.45 s, 2.5 MW 2. Reduce He3 puff to 150 ms, 100 ms, then 70 ms. Use the rf waveform*. 3. Lower density Use the rf waveform* with nl04 = 0.6e20 m^-2 4. Switch to He4 plasma. Run at He3/e ~ 0.1 for energetic He3 tail generation. He3/e - Bt for resonance @ 0.69 m 0.10 - 5.2 T 0.15 - 5.4 T 0.20 - 5.6 T 0.25 - 5.7 T 0.30 - 5.9 T

Physics Operators Plans

Entered: Mar 22 2011 04:16:32:963PM

Author: Jerry Hughes

Run 1110323 MP624: Measurements of mode converted waves in D-He3 plasmas with PCI Session leader: N. Tsuji Physics operator: J. Hughes ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1110321017 Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled Gas setup: **Note: we will begin the run with D main ion plasmas, then changeover B-main sometime in the afternoon to He4.** Fill B-Top with 6 psi D2 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 D2 Hybrid enabled (PG3) fill NINJA with 10 psi D2 DISABLED Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus Leave z-bolo shutter as is (should be open) Torvac gatevalve toggle (yes/no): no Boronization(yes/no): no Overnight ECDC (yes/no): yes ICRF(yes/no): yes, D,E,J, with J at 50 MHz LH(yes/no): no Cryopump (yes/no): no DNB (yes/no): yes (H) Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s ------------------------------ Discharge setup ------------------------------ Load from 1110321017. This was a good startup from Monday. Seg 2 should be a reasonable target for the USN piece of the run. Change nl04 demand in Seg2 to 0.9e19, flat. Inserted a 100ms PG2 puff beginning at 0.2s in Seg2. For the LSN shots, import Seg2 from 1110204028 into Seg3 of the working shot. Change nl04 demand in Seg3 to 0.9e19, flat. Inserted a 150ms PG2 puff beginning at 0.2s in Seg3. Deleted the 2nd PG1 pulse in Seg3. Activate Seg3, since SL wants to start in LSN tomorrow. Saved in /home/jwhughes/physop/pcs_scratch/ as 1110323666.

Session Leader Summaries

Entered: Mar 23 2011 05:41:31:357PM

Author: Naoto Tsujii

We got the desired concentration (He3/e ~ 0.25) around shot 7. The fluctuation intensity was about an order of magnitude lower than it was expected to be. Density has been somewhat low compared to the previous 8T, low fraction run, which might have affected the mode conversion efficiency. Although sensitivity to density dependence at this parameter regime is not clear from analytic IBW mode conversion theory, some insight might be obtained through numerical means. Relative concentration change seen by PCI and CXRS seem to deviate while scanning the He3 concentration down. If the actual concentration is lower than what is seen by PCI, which will make the two measurements consistent, it might help to resolve some of the discrepancy between the PCI measurements and the simulation. The last few shots were run in He4 for CXRS calibration. Small mode conversion was seen around He3/e ~ 0.11.

Physics Operator Summaries

Entered: Mar 23 2011 05:29:00:343PM

Author: Jerry Hughes

The machine ran relatively well today, with most plasmas going full length. Startups were robust, with the exception of some minor bounces that went away and one instance where something seemed to fall in during startup (shot 18). There were also a handful of early disruptions caused by injections that occurred around the OH1 crossover time. Most of the discharges were D main ion, and many had large concentrations of He3 (n_He3/n_e up to 25%, according to SL). Beginning on shot 28 we switched over both B-main and B-top to He4 and loaded a He startup from February (1110207005). This started up with no difficulty. **Note to future PO's: My LSN shots in D2 used Segment 3, and my USN shots in D2 used Segment 2. My He shots used Segment 2. An important observation today was a large number of magnetics baseline offset warnings, accompanied by a considerable amount of pick-up induced by RF on many magnetics signals, including BTOR. See Steve Wolfe's entries under the MHD topic for details. These offsets were not severe enough to prevent normal operation. On the final shot (032) I extended the TF to 2s to assist Orso Meneghini in making a rampdown measurement, and had the fizzle detector set earlier in order to reduce the length of the TF pulses. Total cycles: 32 Tests: 0 Plasmas into rampdown: 28 Early disruptions: 4 Fizzles: ZERO Duds: ZERO

Session Leader Comments
Mar 23 2011 09:22:23:777AM	1110323001	Naoto Tsujii	LSN, 150 ms He3 puff. Good signal. He3/e ~ 0.14 - 0.1.
Mar 23 2011 09:29:06:510AM	1110323002	Naoto Tsujii	Only slightly higher He3 fraction, signal ok. Next: Increase He3 puff to 200 ms, +90 phasing first.
Mar 23 2011 09:57:56:683AM	1110323004	Naoto Tsujii	He3/e ~ 0.17 - 0.11. Next: -90 phasing first.
Mar 23 2011 10:13:14:753AM	1110323005	Naoto Tsujii	He3/e ~ 0.19 - 0.12. Next: 250 ms puff, Bt to 5.6 T.
Mar 23 2011 10:52:40:550AM	1110323006	Naoto Tsujii	He3/e ~ 0.19. Still not high enough concentration. Next: 300 ms puff, +90 phasing.
Mar 23 2011 10:52:51:173AM	1110323007	Naoto Tsujii	He3/e ~ 0.21. This should be high enough concentration. Move to power scan. Next: 1.2 MW, turn off at 1.0, 1.3 s.
Mar 23 2011 11:01:59:840AM	1110323008	Naoto Tsujii	He3/e ~ 0.24. Similar signal intensity with power doubled. Concentration is higher for this shot, so MC is expected to be larger, if anything.
Mar 23 2011 11:10:07:290AM	1110323009	Naoto Tsujii	Repeat. He3/e ~ 0.24. Signal is very similar to the previous shot, both in terms of intensity and resonance location (He3 fraction).
Mar 23 2011 11:41:24:020AM	1110323011	Naoto Tsujii	Signal different, but not clear if there is any qualitative change.
Mar 23 2011 12:24:50:277PM	1110323012	Naoto Tsujii	1.8 MW. No obvious change in the fluctuation intensity.
Mar 23 2011 12:57:39:130PM	1110323015	Naoto Tsujii	2.5 MW. H-mode at 0.7 s. Signal larger in H-mode, maybe due to higher density.
Mar 23 2011 01:27:24:460PM	1110323017	Naoto Tsujii	1.5 MW. Signal may be increasing as the density increases towards the end of the flattop.
May 27 2011 12:37:38:660AM	1110323020	Naoto Tsujii	He3/e ~ 0.17-0.11. Density increases towards the end, but He3 fraction is too low there.
Mar 23 2011 02:30:40:963PM	1110323021	Naoto Tsujii	Density is higher, but He3 fraction too low. Next: Move on to concentration scan.
Mar 23 2011 02:44:27:933PM	1110323022	Naoto Tsujii	USN, nl04 ~ 0.8e20. Steady He3 fraction around 0.17.
Mar 23 2011 03:00:35:693PM	1110323023	Naoto Tsujii	He3/e ~ 0.17. Reduction of the concentration from the previous shot seems to be small despite half the puff time.
Mar 23 2011 03:17:00:797PM	1110323024	Naoto Tsujii	Still He3/e ~ 0.16.
Mar 23 2011 03:25:23:753PM	1110323025	Naoto Tsujii	No He3 puff. He3/e ~ 0.14.
Mar 23 2011 03:39:36:977PM	1110323026	Naoto Tsujii	He3/e ~ 0.13.
May 27 2011 12:55:24:853AM	1110323027	Naoto Tsujii	He3/e ~ 0.12, 70% of shot 22. CXRS seems to see about a factor 3 difference between the two shots.
Mar 23 2011 04:23:30:113PM	1110323028	Naoto Tsujii	He4 plasma. He3/e ~ 0.12. PCI signal looks similar to the previous one.
Mar 23 2011 04:52:04:767PM	1110323029	Naoto Tsujii	He3/e ~ 0.10. Mode conversion is weaker.
Mar 23 2011 04:52:37:887PM	1110323030	Naoto Tsujii	He3/e ~ 0.10. Mode conversion very weak.
Mar 23 2011 05:00:57:327PM	1110323031	Naoto Tsujii	100 ms puff. He3/e ~ 0.12. Mode conversion came back up a little.

Physics Operator Comments
Mar 23 2011 09:16:05:183AM	1110323001	Jerry Hughes	Load from 1110323666 in /home/jwhughes/physop/pcs_scratch/ Load at 22-Mar-2011 15:42:19.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Ready to go, 5.4T, 0.8MA, LSN. Result: Plasma into rampdown. Startup looks ok. There are a few injections. nl04 gets to 8.5e19
Mar 23 2011 09:29:38:260AM	1110323002	Jerry Hughes	Shot 2. Changes: Enable B-side lower (Ar) and set PG1 pulse to 60ms in Seg2. Actually, I should have done this change in the active segment, Seg3. So we will have more Ar than requested. Result: Early disruption. PG1 was chopped at 70% from 0.3 to 0.4s. It actually looks like very little Ar got in.
Mar 23 2011 09:48:19:593AM	1110323003	Jerry Hughes	Shot 3. Changes: Set PG1 in Seg3 to 100% from 0.30 to 0.36s. Increase PG2 gate from 150ms to 200ms Also increasing early nl04 demand Load at 23-Mar-2011 09:28:57.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Disruption at 0.48s. Looks like it was induced by an injection. Density rise looks a bit fast starting at ~0.43s. Seems like only a very small amount of Ar is getting in through B-side lower
Mar 23 2011 09:58:58:197AM	1110323004	Jerry Hughes	Shot 4. Changes: Reduce nl04 demand in the time prior to 0.7s. Also extend PG1 puff from 60 to 100ms to try to unstick the valve, if that is what's wrong. Load at 23-Mar-2011 09:45:55.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.8s. Minor bounce early in startup. Measured Ar input went from 0.2 to 0.3 torr-L.
Mar 23 2011 10:12:07:000AM	1110323005	Jerry Hughes	Shot 5. No changes. Result: Plasma to 1.9s Ar throughput is unchanged from shot 4. Sawteeth are getting tiny after 1s on these shots.
Mar 23 2011 10:19:28:397AM	1110323006	Jerry Hughes	Shot 6: Changes: Increase He3 pulse (PG2) in Seg3 to 250ms. SL requests Bt to 5.6T TF in Seg3 from -150000 to -154400. Load at 23-Mar-2011 10:10:06.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: 5.58T. Plasma to 1.85s.
Mar 23 2011 10:38:55:057AM	1110323007	Jerry Hughes	Shot 7. Changes: Increash He3 puff (PG2) in Seg3 to 300ms. Set nl04 demand in Seg3 to 6e19. Load at 23-Mar-2011 10:22:14.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.93s. nl04 looks as desired. Total gas input: ~ 5torr-L D2, ~2torr-L He3 ~0.03 torr-L Ar
Mar 23 2011 10:48:42:637AM	1110323008	Jerry Hughes	Shot 8. No PO changes. Result: Plasma to 1.97s.
Mar 23 2011 11:04:49:700AM	1110323009	Jerry Hughes	Shot 9. No PO changes. Result: Plasma to 1.96s
Mar 23 2011 11:23:25:627AM	1110323010	Jerry Hughes	Shot 10. No PO changes. Result: Plasma to 1.96s
Mar 23 2011 11:48:57:033AM	1110323011	Jerry Hughes	Shot 11. No PO changes. Result: Plasma to 1.98s
Mar 23 2011 12:03:25:577PM	1110323012	Jerry Hughes	Shot 12. No PO changes. Result: Plasma to 1.96s
Mar 23 2011 12:12:16:787PM	1110323013	Jerry Hughes	Shot 13. No PO changes. Result: Plasma to 1.97s
Mar 23 2011 12:28:51:037PM	1110323014	Jerry Hughes	Shot 14. No PO changes. Result: Plasma to 1.96s
Mar 23 2011 01:37:55:823PM	1110323015	Jerry Hughes	Shot 15. No PO changes. Result: Plasma to 1.97s. H-mode from 0.5 to 0.83s?
Mar 23 2011 01:10:34:237PM	1110323016	Jerry Hughes	Shot 16. Change: Raise nl04 to 0.9e20 in Seg3. Load at 23-Mar-2011 12:52:40.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Disrupts at 0.44s, during OH1 crossover. nl04 is not very different from on shot 015.
Mar 23 2011 01:28:14:813PM	1110323017	Jerry Hughes	Shot 17. Changes: SL wants to try again for the higher density. Being superstitious, I will reload from shot 015, which ran well. Keeping everything prior to 0.5s the same. Will raise nl04 demand in Seg3 to 0.9e20 after 0.6s. Load at 23-Mar-2011 13:14:31.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.93s, with some ugly injections early. Density feedback could be better.
Mar 23 2011 01:36:29:860PM	1110323018	Jerry Hughes	Shot 18 Changes: Increased proportional gain on nl04 after 0.5s. Load at 23-Mar-2011 13:27:48.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Doesn't make it past 0.23s. DPCS_XJUMP was invoked. Looks like something fell in during startup.
Mar 23 2011 02:00:17:790PM	1110323019	Jerry Hughes	Shot 19. No PO changes. Result: Plasma to 1.88s.
Mar 23 2011 02:09:44:640PM	1110323020	Jerry Hughes	Shot 20. Changes: nl04 demand to 1.1e20 in Seg3. Load at 23-Mar-2011 13:58:46.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.71s.
Mar 23 2011 02:26:06:410PM	1110323021	Jerry Hughes	Shot 21. SL wants higher density earlier. Changes: Have nl04 demand reach 1.1e20 by 0.5s. Increase proportional gain slightly. Load at 23-Mar-2011 14:12:27.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.56s
Mar 23 2011 02:49:42:330PM	1110323022	Jerry Hughes	Shot 22. SL wants to go to USN plasma, 0.6e19, 0.8MA, 5.4T Changes: Turn off Seg3, turn on Seg2. In Seg2, change PG2 pulse to 200ms. In Seg2, change PG1 pulse to 100ms. In Seg2, change nl04 demand to 6e19. Load at 23-Mar-2011 14:31:27.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.98s
Mar 23 2011 02:50:06:047PM	1110323023	Jerry Hughes	Shot 23. Changes: Tweaking nl04 program in Seg2 before 0.5s. Decrease He3 (PG2) puff from 200ms to 100ms. Load at 23-Mar-2011 14:43:50.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.98s
Mar 23 2011 03:04:31:567PM	1110323024	Jerry Hughes	Shot 24. Changes: Reduce He3 (PG2) puff in Seg2 from 100ms to 50ms. Attempt to reduce outer gap by ~5mm. Increase RCUR by 0.0025 across flattop. Load at 23-Mar-2011 14:58:17.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.98s. Lots of messages about baseline errors on the magnetics for the 2nd consecutive shot.
Mar 23 2011 03:24:47:973PM	1110323025	Jerry Hughes	Shot 25. Changes: request B-side upper (He3) DISABLED. Also, per Wolfe's suggestion, end the ramp-down sooner, so that the pulse length, post fizzle detector, doesn't go past 4s. (This may reduce the magnetics baseline offset errors I've been getting. Load at 23-Mar-2011 15:12:58.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.96s
Mar 23 2011 03:47:05:577PM	1110323026	Jerry Hughes	Shot 26. Still allowing He3 concentration to come down. Changes: End Ip rampdown program slightly earlier. nl04 demand to 0.5e19. Load at 23-Mar-2011 15:27:16.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.92s. Maybe a brief I-mode, 3 ELM-free H-modes
Mar 23 2011 03:51:29:620PM	1110323027	Jerry Hughes	Shot 27. Changes: Increase RCUR in Seg2 by 0.00125. Load at 23-Mar-2011 15:44:10.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.92s. Nice hot shot.
Mar 23 2011 04:15:18:000PM	1110323028	Jerry Hughes	Shot 28. Switching over to He4 plasmas, with He4 breakdown. Requested B-top filled with 6psi He4, B-main filled with 40psi He4 Load from a successful He startup from February which Wukitch points out: 1110207005 (before field reversal). This shot is 800kA, 5.45T, nl04~6e19, USN. Load at 23-Mar-2011 15:58:05.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.97s.
Mar 23 2011 04:22:42:200PM	1110323028	Jerry Hughes	"mag errors are not a problem" says RSG @ 3:49pm But now Wolfe and Granetz are arguing about whether this is true.
Mar 23 2011 04:35:50:667PM	1110323029	Jerry Hughes	Shot 29. No PO changes Result: Plasma to 1.98s A few more neuts at the end of flattop.
Mar 23 2011 04:56:10:283PM	1110323031	Jerry Hughes	Shot 31. Changes: Request B-side upper ENABLED. Add a He3 pulse (PG2) from 0.2 to 0.3s in Seg2. Changed nl04 program to 6e19 flat. Load at 23-Mar-2011 16:49:59.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 1.96s.
Mar 23 2011 05:22:56:190PM	1110323032	Jerry Hughes	Shot 32. Changes. Increase He3 puff (PG2) to 150ms. Extend TF flattop to 2.0s, per Orso's request. Requesting fizzle detector off time to 1.8s to hopefully prevent extended TF current to 4s. Load at 23-Mar-2011 17:00:05.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma to 2s, then clean TF rampdown to 3.7s. There is one magnetics error: Shot 1110323032: mag_bp_coils.signals:bp01_bc has a baseline offse t 1.1E-02

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:03:17:223AM	Plasma	Ok
2	09:16:58:880AM	Plasma	Ok
3	09:29:38:680AM	Plasma	Ok	PF breaker opened after plasma disrupted
4	09:46:28:837AM	Plasma	Ok
5	09:59:12:297AM	Plasma	Ok
6	10:12:35:970AM	Plasma	Ok
7	10:29:05:033AM	Plasma	Ok
8	10:44:17:797AM	Plasma	Ok
9	11:00:57:520AM	Plasma	Ok
10	11:17:09:153AM	Plasma	Ok
11	11:36:25:457AM	Plasma	Ok
12	11:53:10:140AM	Plasma	Ok
13	12:09:28:533PM	Plasma	Ok
14	12:24:43:230PM	Plasma	Ok
15	12:40:53:190PM	Plasma	Ok
16	01:00:22:087PM	Plasma	Ok
17	01:15:36:710PM	Plasma	Ok
18	01:30:44:320PM	Plasma	Ok
19	01:46:04:020PM	Plasma	Ok
20	02:00:23:200PM	Plasma	Ok
21	02:15:59:070PM	Plasma	Ok
22	02:32:28:147PM	Plasma	Ok
23	02:46:16:820PM	Plasma	Ok
24	03:00:40:630PM	Plasma	Ok
25	03:15:35:010PM	Plasma	Ok
26	03:31:51:770PM	Plasma	Ok
27	03:46:37:177PM	Plasma	Ok
28	04:09:49:250PM	Plasma	Ok
29	04:23:28:543PM	Plasma	Ok
30	04:37:10:770PM	Plasma	Ok
31	04:51:26:250PM	Plasma	Ok
32	05:06:24:013PM	Plasma	Ok

System Availability

Mar 23 2011 09:03:02:967AM

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 sears,snipes BES yes BES system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes 2pi (D+F) working. All midplane and off-midplane diode arrays working except WB1AX. Midplane foils calibrated and PRAD_MAIN is being filled. Divertor/Ledge foils not yet ready. Jul 15 2010 08:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes   Nov 16 2010 02:36PM (dekow) Jim Irby Boronization dekow,irby CNPA yes Multiple channel CNPA available Oct 21 2010 07:11PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no Shut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged. Apr 06 2010 10:51AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes Wide-view CXRS system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan 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 yes system is aligned; new calibrations (relative brightness and position) not yet implemented Jun 29 2010 10:27AM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (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 DNB no in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung ECDC yes Operational Jun 26 2010 09:28PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE yes All channels working and calibrated. Oct 27 2010 03:41PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauges are operational. Jun 28 2010 08:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no Plugs for Power Supply and Controls have been unplugged and red tagged making system safe for In-Vessel Access. Apr 05 2010 11:18AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt 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 operating normally Jun 29 2010 10:26AM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Jun 26 2010 11:19PM (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 System installed and aligned. Inverted Profiles for Ti are available upon request. Vtor profiles still under revision. Dec 17 2010 09:25AM (ypodpaly) John Rice High Resolution X-Ray ince,rice,ypodpaly HXR yes 32 Channels operational Oct 23 2010 01:41PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna yes system checked out ok on 11006728. Jun 28 2010 04:57PM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes system checked out ok on 1100628 Jun 28 2010 04:57PM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes system checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin) Steve Wukitch J-port antenna wukitch,ylin Laser Blow-Off yes operational and tested Jul 20 2010 04:42PM (g) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid yes LH working. New directional couplers installed at input to each klystron. Oct 21 2010 11:42AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer yes 50GHz: up-, 60 GHz up- and down- Oct 21 2010 11:31AM (sgbaek) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek Lower Hybrid SOL reflectometer yes profiles and fluctuations both working. If requested, please request LH launcher to be moved in. Jan 18 2011 03:07PM (cornwall) Cornwall Lau Lower Hybrid SOL reflectometer cornwall,wukitch,ylin LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha no WB4LY and LLY working but not during ICRF. WB1LY not attached due to pickup problems. LYMID attached but have profile problems. Aug 24 2010 09:17AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson no vacuum problems, looking into it Mar 23 2011 08:12AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes Gauges are operational Jun 28 2010 08:02PM (labombard) Brian LaBombard Baratron pressure gauges labombard 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 As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes All systems are on and functional Jun 29 2010 12:56PM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes PMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03 Jun 26 2010 09:21PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA no Capillaries tested in-vessel. Jun 28 2010 08:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry PCI yes Operational. AM 47.92 MHz. Mar 16 2011 08:24AM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab Penning Gauges no High voltage power supplies are turned off, waiting for work at A-port horizontal to be finished. Jun 28 2010 08:07PM (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 no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby Power - Alternator Air Switch yes   Jun 26 2010 11:19PM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes   Jun 26 2010 11:19PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Jun 26 2010 11:19PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Jun 26 2010 11:20PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational. Jun 28 2010 08:03PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational. Jun 28 2010 08:03PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes F and J outer divertor probes are operational. Jun 28 2010 08:04PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes Operational, except probe#13 Jun 28 2010 08:04PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer no 1110216000 all waveguides disconnected to protect mixers Feb 16 2011 08:21AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational. New Langmuir-Mach probe head installed. Jun 28 2010 08:05PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. Jun 28 2010 08:05PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes Both A and K units are operational. Coil polarity needs to be checked. Jun 28 2010 08:06PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Sparker yes HV supply on, cable run to sparker at k-hor Jun 23 2010 02:41PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station yes SSS installed and leak tested. Oct 21 2010 11:31AM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes No new CO2 detector, so still missing edge channels Jun 23 2010 02:40PM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with 2 lasers Oct 22 2010 01:06PM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes Operational Jul 14 2010 11:54AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf XEUS yes Raw spectra stored but not line brightness time histories are going into the tree yet. Jan 20 2011 10:45AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer mlreinke XTOMO yes Core system working. Edge system waiting for H-modes. Jul 01 2010 11:55AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Mar 23 2011 05:26:11:430PM

150 ms puff. He3/e ~ 0.15. Not much effect of reducing the power to 1 MW.