Miniproposals

Miniproposal: 551 Date Filed: 4/17/2008 Title: Penetration of Accessible LH Waves First Author: Greg Wallace Session Leader: Greg Wallace (shots 1-24)

Engineering Operator Run Comment

Session Leader plan for 1080513 (pm) Session Leader: G. Wallace Physics

Session Leader Plans

Entered: May 13 2008 08:16:49:350AM

Author: Greg Wallace

Session Leader plan for 1080513 (pm) Session Leader: G. Wallace Physics Operator: J. Snipes This will be a run for MP551, "Penetration of Accessible LH Waves." This will complete the scans not finished on 1080429. LH Setup: Launcher 1.0mm behind limiter, 75 and 90 degree current-drive phasing. 700kW net power, LH on from 0.7 to 1.2s. Reference shot: 1080429003 Shot plan: 1. Bring up LH power to 700kW at 75 degree phasing with nl_04 steady at 3e19 (or as low as possible), 5.4T,800kA. (2 shots) 2. Scan density from 3e19 (or as low as possible without locked modes) to 6e19 nl_04 between 0.7 and 1.2 seconds at 5.4 T, 1.1MA, 75 degrees. Cryopump and/or inner wall puffing may be required for density control. Repeat at 90 degrees. (2 shots) 3. Scan density from 5e19 to 1e20 nl_04 between 0.7 and 1.2 seconds at 5.4 T, 800kA, 75 degrees. Cryopump and/or inner wall puffing may be required for density control. Repeat at 90 degrees. (2 shots) 4. Repeat 3 at 5.4T, 1.1MA. (2 shots) 5. Repeat 3 at 6.0T, 800kA. (2 shots) Total of 10 shots. If time allows: 6. Repeat 2 at 5.4T, 500kA. (2 shots) 7. Repeat 2 at 5.0T, 800kA. (2 shots)

Entered: May 13 2008 08:17:53:867AM

Author: Chuck Kessel

MP454: Low Ip H+ITB Plasmas, Modulation and LH 4.1 Machine and Plasma Parameters Give values or range for: Toroidal Field: 5.4 T Plasma Current: 0.450 MA Working Gas Species: D, H-minority. Density: Target 5e19 m-2 cryopump on Equilibrium configuration (if possible, refer to database equilibria): 1080221009, change Ip ramp up time from 500 ms to 150 ms 4.2 Auxiliary Systems ICRF Power, pulse length, phasing: J-port , maximum power. D and E maximum power, all for full pulse (up to 2.5 s) LHCD Power, pulse length, phasing: maximum power, 90 deg (maybe higher), longest pulse available. Pellet Injection (species): no Impurity blow-off injection: no Diagnostic Neutral Beam: Highly desirable Special gas puffing: NINJA (with D2) should be available. Non-axisymmetric Coils (Connections, Current); Yes; optimized to reduce locked modes. Other: 4.3 Diagnostics List required diagnostics, and any special setup or configuration, e.g. non-standard digitization rate. Essential: Thomson, Magnetics, Hard x-rays, ECE, TCI, probes in LH grill, Hirex (rotation data) Desirable: MSE, CXRS, SOL probes. Experimental Plan: 1. Establish BT = 5.4T, 450 kA plasma with 150 ms ramp, use 1080221009 as reference 2. Setup ICRF for 2+ MW off-axis beginning at 250 ms (70 MHz, J port) to make H+ITB mode, establish density, and H-mode onset and ITB onset timing (use 4.5 T if difficulties with 5.4 T) 3. With 2+ MW of ICRF off-axis power, scan injected ICRF on-axis power and its timing to stabilize ITB 4. Inject LH power into stabilized ICRF ITB plasma �?� LH on time after ITB stabilization, maximum power, 90 deg phasing �?� Try higher n|| if accessibility problems are a possibility 5. Using case from above step, after in stabilized ITB mode, raise on-axis power slightly to return to H-mode or ITB with weaker density peaking ---> determine how much power to increase on-axis source 6. Using case from above step, in stabilized ITB mode, raise on-axis power slightly to return to H-mode or ITB with weaker density peaking, then reduce on-axis power to recover original ITB density peaking (this may require dropping on-axis power to zero first) ---> this probably requires flattop extension, end of Ip flattop extended from 1.5 to 2.5 s

Physics Operators Plans

Entered: May 12 2008 04:54:07:433PM

Author: Joseph Snipes

Engineering Setup for Tuesday 13 May, 2008 ----------------- Physop: J. Snipes Session Leader: C. Kessel or G. Wallace MP454: Low Ip H+ITB Plasmas, Modulation and LH or MP551 Penetration of Accessible LH Waves depending on how the ICRF repairs go. If the ICRF is repaired in time this evening we will run MP454 and require boronization. Run may begin at 09:00 and end at 17:00 if the ICRF is repaired Power systems as on: 1080221009 or 1080429003 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 gatevalves and shutters: ECE, VUV, DNB, Z-bolo Torvac gatevalve toggle (yes/no): NO Boronization(yes/no): maybe 20% diborane/80% helium TC6 foreline pressure: 50 mTorr rmin/rdwell/rmax: 44/75/80 cm tdwell/tsweep: 60 /120s EF4 current: 200 A Pressure change in the bottle: 60 psi Post boronization ECDC ---------------------------- 1st Gas Setup: Gas: helium sweep: 44/103/45 cm tdwell/tsweep 20/120 s Pressure: 5e-5 Torr Duration: 1 hr 2nd Gas Setup Gas: d2 sweep: 44/103/45cm tdwell/tsweep: 20/120 s Pressure: 2e-4 Torr Duration: 1hr ICRF(yes/no): maybe LH(yes/no): YES DNB(yes/no): not available Cryopump (yes/no): YES, starting with first plasma shot, if available Vessel temperature: 35/35/35

Entered: May 13 2008 11:47:44:107AM

Author: Joseph Snipes

Shot 2: Loaded shot 1080429003 and changed nl04 to ramp down from 4 x 10^19 m^-2 to 3 x 10^19 m^-2 at 0.4 s and remain constant until 1.5 s. Cryopump is not yet ready so I reduced the prepuff to 20 ms duration. Disrupted at 0.128 s.

Entered: May 13 2008 12:06:53:887PM

Author: Joseph Snipes

Shot 3: Still having a computer problem with the cryopump. So, I've adjusted the prepuff to 24 ms duration. Steve Wolfe also realized that the startup the engineers are using is for MP454. So, I've asked them to reload the engineering parameters from shot 1080429003. No power shot due to computer problems.

Entered: May 13 2008 12:35:09:393PM

Author: Joseph Snipes

Shot 4: The cryopump is still not ready, so we proceed with 24 ms prepuff. Disrupted at 0.435 s. DPCS has only bit noise so it appears to have triggered at the wrong time.

Entered: May 13 2008 12:35:19:660PM

Author: Joseph Snipes

Shot 5: Cryopump should be ready so I've set the prepuff to 54 ms duration. Cryopump warmed up just before the shot so the neutral pressure at breakdown was over 0.14 mTorr. Fizzle.

Entered: May 13 2008 12:54:56:937PM

Author: Joseph Snipes

Shot 6: They claim the cryopump will work for the next shot. So we'll try again. Good shot though there were a large number of runaways.

Entered: May 13 2008 01:12:56:907PM

Author: Joseph Snipes

Shot 7: Increased the prepuff to 58 ms duration to try to eliminate the early runaways. Disrupted at 1.65 s in rampdown. Good shot. The early runaways are still there.

Entered: May 13 2008 01:31:58:857PM

Author: Joseph Snipes

Shot 8: Increased the prepuff to 64 ms duration to try to eliminate the early runaways. Ramped nl04 from 3 x 10^19 m^-2 at 0.7 s to 6 x 10^19 m^-2 at 1.2 s then begin ramping the density down at 1.3 s. Increased Ip to 1.1 MA. Disrupted at 0.54 s. Current rise was too fast and the outer gap went to zero.

Entered: May 13 2008 01:37:01:347PM

Author: Joseph Snipes

Shot 9: Reduced the ramp rate of the current so that it is programmed to reach 1.1 MA at 0.7 s. Decreased RCUR to from 0.663 to 0.66 throughout the shot to increase the outer gap. Better shot disrupted in the rampdown at 1.64 s.

Entered: May 13 2008 02:02:08:600PM

Author: Joseph Snipes

Shot 10: Reprogrammed nl04 to stay at 6 x 10^19 m^-2 until 1.5 s. Disrupted at 0.93 s. It looks like there is a locked mode starting around 0.4 s.

Session Leader Summaries

Entered: May 16 2008 11:13:20:330AM

Author: Greg Wallace

Session Leader Summary for 1080513 Session Leader: G. Wallace Physics Operator: J. Snipes The purpose of this 1/2 day run was to fill in the higher density and higher current points for MP551, "Penetration of Accessible LH Waves." This MP was designed to investigate the location and intensity of HXR emission (as a proxy for LH current drive) as a function of line averaged density, toroidal field, and plasma current. After a failed attempt to run the second half of this MP on 1080512, we decided to try again, hopefully without the need to evacuate the building. The LH system came up to 700kW net power in two shots, although the early part of the run was plagued by locked modes and disruptions. After several disruptions, we aborted our efforts to get low density data at 5.4T, 1.1MA and moved on to complete the higher density scans. Shot 9 did give some low density data, although not over the whole range we desired. The rest of the day went smoothly, with data at 75 and 90 degree phasing for (5.4T, 800kA) (6.0T, 800kA) and (5.4T, 1.1MA) for nebar=.9-1.5e20 m^-3. The low current scans met up with the data from 1080429 perfectly, extending the curve of line averaged density vs HXR emission and showing that it is not in fact a straight line. No significant variation was seen between phases or magnetic fields. Interestingly, the HXR emission at 1.1MA was much higher (by about a factor of 2) than for 800kA shots. This was across a range of densities from nebar=.8 to 1.5e20. This is consistent with results from the '06 campaign when we got our best tropy shots at higher current. Several phenomena could explain this effect, including a higher ohmic electric field, better wave propogation to the high field side, and better confinement of fast electrons. I_gnd currents on the upper divertor probes rose with plasma density during the LH, indicating that SOL currents require high plasma density as well as LH power to develop. This may be related to the lower HXR countrates observed at high density.

Physics Operator Summaries

Entered: May 13 2008 05:33:40:553PM

Author: Joseph Snipes

Despite a slow start, we managed to pull out some pretty good results for a bit more than half a run day. The day started with ICRF problems in the hi-yard for transmitter 4. After that was resolved, we had a data system test. The first shot disrupted very early because of a lack of communication between the physop and the engineer in charge who had set the engineering setup for MP454 rather than MP551. I should have checked the crowbar settings before taking the shot or clarified which startup shot to use for the engineering setup. Then, there were some problems getting the cryopump running properly that led to one fizzle on shot 5. Then, we had a couple of good shots at moderate current. High current at 1.1 MA proved more difficult because of locked modes, particularly when we ran low density. Later in the run, we went to moderately high density and there the machine ran well and the cryopump worked well. The LHCD worked well throughout most of the shots and good data were obtained on the density dependence of the current drive efficiency. See the session leader's summary for the details. The last shot 24 was particularly interested for LHCD as we went to relatively high density and ramped it down with the cryopump while injecting LHCD. This shot was surprising in that it had a decent current rise with very low breakdown pressure of 0.025 mTorr. The overall scorecard included 24 shots, 20 plasmas, 1 fizzle, 1 DPCS fault, 1 TF fault, and one test shot. Of the 20 plasmas, there were 6 disruptions with four in the current rise and two in flattop.

Session Leader Comments
May 13 2008 12:02:04:960PM	1080513002	Greg Wallace	Disruption at 0.12s. Crowbar problem, hopefully now fixed.
May 13 2008 12:41:17:130PM	1080513004	Greg Wallace	Disruption at 0.43s.
May 13 2008 12:41:23:443PM	1080513005	Greg Wallace	Fizzle.
May 13 2008 12:58:11:393PM	1080513006	Greg Wallace	Clean shot. Next shot will increase LH power slightly.
May 13 2008 01:16:14:270PM	1080513007	Greg Wallace	Clean shot, 700kW net power. Interestingly no sign of rotation on HIREXSR although there is a significant change in Vloop. Next shot will go to 1.1MA and ramp density from 3e19 to 6e19.
May 13 2008 01:23:16:900PM	1080513008	Greg Wallace	Disruption at 0.55s.
May 13 2008 01:52:10:450PM	1080513009	Greg Wallace	Trip on 17T early, then clean after. Next shot will increase klystrons at 100kW (3,5,9) to 120kW but otherwise repeat.
May 13 2008 02:01:59:803PM	1080513010	Greg Wallace	Disruption at .93s, clean LH up to that time. Looks like maybe a locked mode? Will repeat without the disruption, hopefully.
May 13 2008 02:09:10:527PM	1080513011	Greg Wallace	Only cart 1 fired. Will repeat with all carts enabled and increase bottom end of density ramp to 3.3e19.
May 13 2008 02:25:04:677PM	1080513012	Greg Wallace	Disruption at .9s again. Will try raising the density a bit more.
May 13 2008 02:38:19:597PM	1080513013	Greg Wallace	No TF. Moving on to higher density shots at 5.4T, 800kA
May 13 2008 02:54:11:370PM	1080513014	Greg Wallace	Another disruption at 0.5s, not a locked mode this time.
May 13 2008 03:08:08:537PM	1080513015	Greg Wallace	Another locked mode at higher density!???!?!?!? Joe says it was caused by an injection at 0.6s. Also poor coupling, looks like a bit too much density.
May 13 2008 03:20:10:577PM	1080513016	Greg Wallace	Clean almost until the end, trips may be from flashing on grill. Moving on to 90 degree phasing.
May 13 2008 03:31:38:150PM	1080513017	Greg Wallace	Almost clean at 90 degrees. Moving on to 1.1MA high density ramp, 75 degrees.
May 13 2008 03:40:55:670PM	1080513018	Greg Wallace	Clean almost to the end at 75 degrees, no locked mode, 1.1MA, 5.4T. Next shot will repeat at 90 degrees.
May 13 2008 03:56:23:137PM	1080513019	Greg Wallace	Again, clean until almost the end at 90 degrees. Will go to 6.0T, 800kA, 75 degrees on next shot.
May 13 2008 04:14:47:133PM	1080513020	Greg Wallace	A few trips at the very end, clean before that, but good enough. Moving on to 90 degrees, 6.0T.
May 14 2008 04:11:12:437PM	1080513021	Greg Wallace	Almost clean at 6.0T, 800kA.
May 13 2008 04:39:57:780PM	1080513022	Greg Wallace	Many trips starting at 1.0s, looks like density is getting too high. Will try increasing the outer gap an additional 0.5cm to see if we can fix that problem.
May 13 2008 04:56:15:637PM	1080513023	Greg Wallace	Still tripping at higher density even with bigger gap. Last shot will be a density sweep from 1e20 to 5e19.
May 13 2008 05:06:07:563PM	1080513024	Greg Wallace	Ramp down in density went clean over a range from near 9e19 to 6.3e19. Last shot of the day.

Physics Operator Comments
May 13 2008 11:21:31:507AM	1080513001	Joseph Snipes	Shot 1: Data system test. OK.
May 13 2008 02:09:01:103PM	1080513011	Joseph Snipes	Shot 11: Repeat. Better shot. Disrupted at 1.7 s in rampdown. There still appears to be a locked mode given the behavior on the GPC data with no sawteeth after 0.68 s.
May 13 2008 02:29:52:323PM	1080513012	Joseph Snipes	Shot 12: Raised nl04 to 3.3 x 10^19 m^-2 to try to avoid the locked mode without increasing the density too much for the LHCD. Disrupted at 0.91 s with another locked mode appearing around 0.6 s.
May 13 2008 02:39:02:080PM	1080513013	Joseph Snipes	Shot 13: Raised nl04 to 3.8 x 10^19 m^-2 to try to avoid the locked mode. TF fault. No TF.
May 13 2008 02:47:48:473PM	1080513014	Joseph Snipes	Shot 14: Raised nl04 to 5 x 10^19 m^-2 then ramped to 1 x 10^20 m^-2 between 0.7 and 1.2 s then rapidly down. Reduced Ip to 0.8 MA. Disrupted at 0.44 s.
May 13 2008 03:04:52:097PM	1080513015	Joseph Snipes	Shot 15: Try reducing the rate of rise of the current so that it is programmed to reach 0.8 MA at 0.45 s. Good shot. Locked mode appears at 0.6 s after an impurity injection and remains until 0.9 s when the sawteeth return.
May 13 2008 03:14:38:637PM	1080513016	Joseph Snipes	Shot 16: Reduced RCUR to 0.659 m at 0.65 s with a ramp to 0.657 m at 1.5 s. Good shot.
May 13 2008 03:28:16:927PM	1080513017	Joseph Snipes	Shot 17: Repeat with 90 degree phasing. Good shot.
May 13 2008 03:45:52:737PM	1080513018	Joseph Snipes	Shot 18: Raised Ip to 1.1 MA. Good shot.
May 13 2008 04:00:30:060PM	1080513019	Joseph Snipes	Shot 19: Repeat at 90 degree phasing. Good shot.
May 13 2008 04:11:56:150PM	1080513020	Joseph Snipes	Shot 20: Raised TF current limit to 175 kA. Raised TF current to 166 kA in both segments 1 and 3. Reduced Ip to 0.8 MA. Good shot.
May 13 2008 04:21:48:717PM	1080513021	Joseph Snipes	Shot 21: Repeat with 90 degree phasing. NINJA enabled to inject D2 after 1.2 s. Good shot.
May 13 2008 04:39:49:077PM	1080513022	Joseph Snipes	Shot 22: Reloaded shot 16. Then, decreased RCUR by 3 mm from 0.6 to 1.5 s. Changed the ramp in nl04 to reach 1.2 x 10^20 m^-2 at 1.1 s and remain there until 1.3 s. Good shot.
May 13 2008 04:53:40:650PM	1080513023	Joseph Snipes	Shot 23: Decreased RCUR by 2.5 mm from 0.6 to 1.5 s. Turned off the cryopump to be able to get to higher density. Reduced prepuff to 20 ms duration. Good shot.
May 13 2008 05:14:02:867PM	1080513024	Joseph Snipes	Shot 24: Programmed nl04 to step up from 7 x 10^19 m^-2 at 0.5 s to 1 x 10^20 m^-2 by 0.501 s then constant until 0.8 s then ramp down to 5 x 10^19 m^-2 by 1.3 s. LHCD pulse delayed by 0.1 s to start at 0.8 and stay on until 1.3 s. Turned the cryopump back on. Surprisingly good shot since I forgot to increase the prepuff for the cryopump. It is surprising that we got a decent current rise at a breakdown pressure of 0.025 mTorr. The cryopump prevented the plasma from reaching the requested nl04 and it only reached 0.85 x 10^20 m^-2. The ramp down in density also did not reach the requested 5 x 10^19 m^-2 but instead reached about 6 x 10^19 m^-2. This is a very interesting shot also for the LHCD.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	11:02:27:773AM	Test	Ok	This has been a test of the data system, this was only a test!
2	11:43:51:290AM	Plasma	Ok
4	12:16:20:880PM	Plasma	Ok
5	12:30:46:390PM	Plasma	Ok
6	12:47:50:497PM	Plasma	Ok
7	01:05:03:743PM	Plasma	Ok
8	01:20:38:253PM	Plasma	Ok
9	01:34:14:953PM	Plasma	Ok
10	01:49:06:683PM	Plasma	Ok
11	02:02:10:070PM	Plasma	Ok
12	02:18:10:347PM	Plasma	Ok
13	02:32:05:310PM	Plasma	Bad	No TF
14	02:45:30:003PM	Plasma	Ok
15	02:58:23:403PM	Plasma	Ok
16	03:11:36:977PM	Plasma	Ok
17	03:24:38:050PM	Plasma	Ok
18	03:37:37:403PM	Plasma	Ok
19	03:52:37:790PM	Plasma	Ok
20	04:07:22:880PM	Plasma	Ok
21	04:19:53:140PM	Plasma	Ok
22	04:32:35:540PM	Plasma	Ok
23	04:49:21:253PM	Plasma	Ok
24	05:02:18:390PM	Plasma	Ok

System Availability

May 13 2008 11:02:06:727AM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD yes Fully operational Mar 28 2007 09:19PM (sears) Joe Snipes Active MHD Antenna sears,snipes BES yes vertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm. Feb 06 2007 10:00AM (bravenec) Ron Bravenec Beam Emission Spectroscopy bravenec,rowan Bolometers yes Diode 2pi working fine, foil 2pi being low-pass filtered to remove noise. Outboard miidplane AXUV has a grounded channel which is disrupting the whole array OFFLINE for now. Midplane foils working fine, but need to fill tree with calibrations. 2D AXUV arrays are being digitized but need further debugging and calibration. Mar 14 2008 11:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes System Operational Apr 29 2008 03:29PM (irby) Jim Irby Boronization dekow,irby CNPA yes Single channel CNPA available as of 12/1707 Dec 17 2007 05:48PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor yes Cryopump is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersect the beam at the major_R_range=[74.2:86.3]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[67.8:91.0]cm. Spatial resolution: 1.22 cm. Nov 27 2007 10:21AM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Nov 26 2007 04:23PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes optics repaired, camera re-installed, and view has been re-calibrated Nov 27 2007 09:54AM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no   Nov 20 2007 10:47PM (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   Nov 20 2007 10:47PM (granetz) Robert Granetz Diagnostic Neutral Beam beals,granetz FRC-ECE yes 16 Channels now working - low freq. side - outer Rmids Feb 19 2008 09:56AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauge is operational and calibrated against G-side MKS on shot#1071127002 Nov 27 2007 01:25PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland GPC yes All 9 channels operational as of new year. Jan 03 2008 09:31AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels operational. Jan 02 2008 12:22PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI no Neither the Xpt-view nor the midplane-view camera is operational. Nov 26 2007 04:25PM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes Should be operational for the FY08 campaign Nov 27 2007 09:54AM (marmar) Earl Marmar H/D Ratio marmar Hirex Jr yes   Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr no Be Window has a leak and so the gate valve is closed Nov 23 2007 12:50PM (ince) John Rice High Resolution X-Ray ince,rice HXR yes Something might be wrong with channel 26; all others working fine. Mar 23 2007 10:43AM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt ICRF D-Antenna yes available (quarter-wave transformer for pre-matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes available (with FFT for automatical matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes normally in [0,pi,pi,0] phase for heating. current drive phase available if requested. Dec 11 2007 09:03AM (ylin) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid yes Body I Fault Circuits Repaired and tested. High power tests completed Dec 05 2007 06:40PM (dterry) Ron Parker Lower Hybrid dterry,parker LPI yes 1/9/08 Jan 09 2008 03:23PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane working fine, emissivity profiles being stored in tree, but still need to apply in-vessel calibrations to data. WB1-LY being digitized, but not processed in tree. Dec 09 2007 06:53PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson no Problems with detector. No quantitative line brightnesses possible. Qualitative tasks like impurity identification possible. Feb 15 2008 02:07PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational Apr 29 2008 02:30PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes E-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box. Mar 20 2007 06:42PM (g) Brian LaBombard Baratron pressure gauges labombard MLP no Initial tests on the A-port scanning probe went well. We need to take care of some control glitches that caused some component failures. May 30 2007 08:01PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no We are basically awaiting the DNB & its new aperture. MSE itself is OK. Feb 21 2008 08:51AM (jinseok) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Voltage is on for the He3 bank. Voltage will be turned on for the global system at the first plasma attempts. Nov 26 2007 08:31AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes calibration unchanged from 2007 campaign Dec 04 2007 08:56PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. Nov 26 2007 04:26PM (terry) Brian LaBombard NINJA gas puff labombard,terry PCI yes working Feb 29 2008 07:00PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges yes All gauges except B_DivL are operating Nov 27 2007 01:31PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Nov 26 2007 04:27PM (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 Probe Array - ISD yes Operational Nov 27 2007 01:40PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational Nov 27 2007 01:40PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes System is fully connected except for the 75GHz channel. System was connected on 1080422. Apr 22 2008 08:26AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational, but needs to be checked with plasma. Nov 27 2007 01:45PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes FSP is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A- and K-port WASP electrodes have been replaced/tested. Nov 27 2007 01:44PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick TCI yes Operational Apr 29 2008 03:33PM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes One laser operational, 12 spatial channels Apr 11 2008 10:36AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes System is working with 3 out of 4 spectral channels and should be believable for Te>50eV, ne>3e19. Density is calibrated from both Raman scattering in D2 (3/2/08) and from edge ECE cutoffs in high-density H-modes (1080228014). Apr 11 2008 10:36AM (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 XTOMO yes system operational, but channels have been dying...stay tuned. Mar 14 2008 11:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke