Miniproposals

Miniproposal: 514 Date Filed: 7/27/2007 Title: Influence of magnetic topology on the H-mode pedestal First Author: Jerry Hughes Session Leader: Jerry Hughes (shots 1-29)

Engineering Operator Run Comment

MP514: Influence of magnetic topology on the H-mode pedestal SL: Hughes

Session Leader Plans

Entered: Jan 25 2008 08:19:11:763AM

Author: Jerry Hughes

This experiment will continue to examine the modification of pedestal parameters and consequent H-mode performance by modulating magnetic balance. It will follow on work done on 1070821, but will expand to additional values of plasma current and will utilize the cryopump. SETUP: **Overnight boronization: Use most recent recipe **Diagnostics desired Edge and core Thomson, ECE diagnostics, CXRS, bolometer and Lyman-alpha arrays, PCI, reflectometry, Hirex, scanning probes **DNB Would like it, if and only if current can be kept at >5.5A. Fast modulation for CXRS; McDermott should choose the timing. **Gas NINJA plenum loaded with 10psi D2 Argon puff: 50ms at 0.3s (Argon at 1psi) **ICRF 3MW needed by 10:00, flat from 0.6 to 1.5s. First few discharges will be Ohmic, ICRF can use the time after 1.2s for conditioning/boronization recovery. Will want to go to >4MW later in the day. Tentative shot sequence: A. (4 shots) Ohmic SSEP scans to calibrate the magnetic balance. Load shot 1070821015, an 800kA shot with an SSEP scan from -5mm (<1s) to 5mm (@1.25s) and back to -5mm (@1.5s). Change timing of SSEP scan from [1.0, 1.25, 1.5] to [0.6, 0.9, 1.2]. ICRF can run as needed after 1.2s in order to recover from boronization. Cryopump will be warm on these shots. 1. Run this 800kA discharge, with nl04=1e20m-2 2. IP=1.0MA. nl04=1.2e20m-2 3. IP=0.6MA. nl04=8e19m-2 4. IP=0.4MA. nl04=6e19m-2 For each current, determine the best estimate for the offset that should be applied to the SSEP value reported by EFIT, for applying to subsequent shot programming. ***Before proceeding, we will probably want a cell access to adjust edge TS fiber placement.*** B. (16 shots) H-modes with 3MW of ICRF from 0.6s to 1.5s, cryopump cold. SSEP during flattop is to be flat, except for the ramps defined below. Starting SSEP (@t=0.6s) will be -5mm for all discharges. 1. IP=1.0MA. nl04=1.0e20m-2. a. As in part A., ramp SSEP [-5mm --> 5mm] from [0.60s --> 0.90s], then [5mm --> -5mm] from [0.90s --> 1.20s] b. Ramp SSEP [-5mm --> -2mm] from [1.10s --> 1.20s] c. Ramp SSEP [-5mm --> 0mm] from [0.70s --> 0.85s], then [0mm --> 2mm] from [1.10s --> 1.20s] d. Ramp SSEP [-5mm --> 4mm] from [0.70s --> 0.90s], then [4mm --> 6mm] from [1.15s --> 1.25s] 2. IP=0.8MA. nl04=0.8e20m-2. Repeat SSEP scans a--d at this condition. 3. IP=0.6MA. nl04=0.6e20m-2. Repeat SSEP scans a--d at this condition. 4. IP=0.4MA. nl04=0.4e20m-2. Repeat SSEP scans a--d at this condition. C. (5 shots) Return to the most promising low density, low nu* H-mode targets from part B., and apply increased ICRF power. In each of these discharges, there will be only one target SSEP. The ramp will be from -5mm to the target SSEP over [0.7 --> 0.9], after which SSEP will stay flat. ICRF will be a constant 3MW from 0.6--0.9s, ramp to the maximum available power at 1.2s, then hold fixed until 1.5s. D. (5 shots) Repeat some desirable low nu* H-mode targets from parts B. and C. with the cryopump warm. These can be used to evaluate the effectiveness of the pump in lowering the pedestal density.

Physics Operators Plans

Entered: Jan 23 2008 06:34:08:480PM

Author: Ron Parker

Physop Run Plan for Tuesday, 25-Jan-2008; 1080125 Purpose: MP514: Influence of magnetic topology on the H-mode pedestal SL: Hughes PO: Parker ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1080123001 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 Diagnostics: Required: Edge Thomson,ECE, toroidal and poloidal LFS CXRS, inner wall CXRS, TCI, PCI, reflectometry. Desirable: X-ray Ti, rotation diagnostics Torvac gatevalve toggle (yes/no): no Boronization(yes/no): yes, overnight ICRF(yes/no): yes LH(yes/no): no DNB(yes/no): yes if available Cryopump (yes/no): yes, standby Vessel temperature: 35/35/35 Shot setup and sequence: See SL Plan

Session Leader Summaries

Entered: Jan 25 2008 05:25:59:083PM

Author: Jerry Hughes

This experiment examined the modification of pedestal parameters and consequent H-mode performance by modulating magnetic balance, following on work begun on 1070821. The plan was expanded to include additional values of plasma current and use of the cryopump. Despite some minor delays we completed a fair fraction of the run plan. ICRF performed very well today, requiring relatively little time to come to 3MW, despite an overnight boronization. We obtained a fair number of H-mode pedestals in near double null configuration, while modulating the value of SSEP values from -5mm to +5mm. We reproduced the previously observed pump-out of the density pedestal as magnetic balance shifts toward USN, and saw that this trend continued as we went to higher q discharges (Ip=600kA). We had difficulties producing steady EDA-like H-modes at lower q (Ip=1MA), which is consistent with our usual experience, particularly when approaching unfavorable ion grad-B drift direction. Despite the good pump-out for SSEP>0, the collisionality was generally lower for SSEP between about -4mm and -2mm. Our best confinement was achieved in this range of magneitc balance, with relatively high edge beta_pol, and the appearance of high-frequency small ELMs. Several shots were devoted to ohmic SSEP scans, which were used to "calibrate" the value that EFIT gives for SSEP. Based on measurements of divertor neutral pressures, particle fluxes to upper and lower targets, and wide angle video images, it appears that EFIT is calculating SSEP correctly to within about 1mm.

Physics Operator Summaries

Entered: Jan 25 2008 05:27:10:850PM

Author: Ron Parker

The run started on time and the shots went off with regularity. One exception occured when there was a problem with the cryopump, traced to a faulty limitswitch. Once repaired, or by passed, the run proceeded without further delays. The physics plan of the run was centered on examining the the dependence of H-Mode parameters and pedestals on magnetic geometry, in particular ssep. Most of the run plan was accomplished, although many shots ended in disruption particularly at high RF power. Of note is the good reliability of the startup, except just after the crypump was turned off for the last shot. See SL summary for physics progress. Scorecard: 29 plasma attempts, 3 duds (due to cryopump problems), 13 full length shots, 12 disruptions (all but one late enough to provide useful data), 1 fizzle.

Session Leader Comments
Jan 25 2008 10:46:01:320AM	1080125001	Jerry Hughes	First shot is on ohmic SSEP sweep at 800kA, cryo WARM. Shape looks reasonable. Upper strike is in the right place. Left and right gap are relatively large, and growing during the sweep. Ron will try to fix this and repeat shot. Got divertor pressure measurements. Not sure about the probes. Lower plenum pressure begins to drop when SSEP increases through ~-2mm. On the way back down, the upper chamber holds its pressure until SSEP drops through ~-1.5mm. However, calculated flux to outer divertor drops at around 0.74s, when SSEP is close to zero. Next: Repeat with gap change and lower target nl04 to 8e19.
Jan 25 2008 09:33:23:673AM	1080125002	Jerry Hughes	No plasma. Retry.
Jan 25 2008 10:52:03:013AM	1080125003	Jerry Hughes	Shot 1 repeated, with right gap kept under better control. Also, the SSEP scan down was smoother. Pressures are lower because of the lower target density. You can see the lower chamber start to pump out when SSEP crosses thorugh ~-1mm. Outer divertor flux trace suggests DN begins later, at SSEP~2mm. D+E got in >2MW for a late H-mode. Next shot: Raise Ip to 1MA, nl04=1e20.
Jan 25 2008 10:00:44:800AM	1080125004	Jerry Hughes	No plasma. Next shot: Retry.
Jan 25 2008 10:22:04:683AM	1080125005	Jerry Hughes	1MA, nl04~1.1--1.2e20. Decent shot, plenty of density. Lower chamber begins to pump out at SSEP~-1mm. Next shot: 600kA, nl04~8e19
Jan 25 2008 10:35:36:777AM	1080125006	Jerry Hughes	600kA, nl04~9e19. Too much density. Next shot. Lower request to 6e19.
Jan 25 2008 10:45:49:210AM	1080125007	Jerry Hughes	Cryopump seems to have gone cold unexpectedly. Frank is putting it in shutdown mode until we really need it. Next shot. Retry.
Jan 25 2008 11:04:12:217AM	1080125008	Jerry Hughes	600kA. nl04~6--7e19. Decent shot. Next: Lets move on to part B., pumped H-modes. Reload shot 3 (ron will try to stabilize the midplane gaps somewhat). Want cryo COLD. Request 3MW ICRF from 0.6 to 1.5s.
Jan 25 2008 02:13:01:730PM	1080125009	Jerry Hughes	Shot 3 was not loaded. Rather we got the 600kA shot repeated. The left gap is under better control. The right gap thrashes a bit. Overall not a bad target. Pedestal coverage seems ok. QCM is present, but vanishes when SSEP gets close to +5mm Next: Try to get the 800kA target.
Jan 25 2008 02:14:53:357PM	1080125010	Jerry Hughes	That was more or less what we wanted. 800kA with a nice SSEP sweep. Gaps look ok. RF performed admirably. We see the pedestal pump out as we move to USN. PCI shows QCM present throughout the scan, though amplitude and frequency do change. Next: Lower target nl04 to 7e19 and insert periods of flat SSEP. (-5mm, -2mm)
Jan 25 2008 12:02:03:987PM	1080125011	Jerry Hughes	800kA, lower target nl04. We got SSEP flats of -5mm and ~0mm. ne,ped seems to be the same at the SSEP change, but Te (and H-factor) drops. Next shot: New SSEP program. Try for -2mm, 2mm.
Jan 25 2008 12:17:14:660PM	1080125012	Jerry Hughes	800kA, lower target nl04. We got SSEP flats of ~ -3mm and ~ +2mm. Prad rises before the USN phase. Next shot: New SSEP program. Try to raise the SSEP platforms.
Jan 25 2008 03:20:27:620PM	1080125013	Jerry Hughes	800kA. We got SSEP flats of ~ 0mm and ~ +4mm. ne,ped drops in the USN case, as we saw before. No real improvement in performance, though. High H-factor initially, and maybe some ELMs while still in LSN! QCM is present throughout, though weakest when exactly DN. Next shot: We're having cryopump problems. While they try to fix it, repeat shot 10 without RF, no cryo.
Jan 25 2008 01:36:12:673PM	1080125014	Jerry Hughes	Ohmic shot with SSEP sweep from -5mm to 5mm and back. At t=0.74--0.76s, The Isats rise abruptly on the probes at the pumping slots, and the lower divertor starts to pump out. EFIT SSEP is going from -0.8mm to +0.7mm during that period. This suggests EFIT is pretty accurate.
Jan 25 2008 01:47:41:030PM	1080125015	Jerry Hughes	Shot went basically as programmed. Two separate H-modes, nominally at +2mm and +5mm. Lower density as we go more USN, as before. Confinement is nothing special once we get away from the LSN early in the first H-mode. Prad is high. Next shot: Reload shot 011 and raise Ip to 1MA.
Jan 25 2008 01:58:13:637PM	1080125016	Jerry Hughes	3 unpleasantly radiative H-modes. ICRF has trouble with the tune. Let's retry with full power. Power room access due to a breaker pull.
Jan 25 2008 02:05:07:113PM	1080125017	Jerry Hughes	Early injection and disruption.
Jan 25 2008 02:30:23:343PM	1080125018	Jerry Hughes	RF problems. Shot went anyway, and disrupted mysteriously at 1.27.
Jan 25 2008 02:46:04:690PM	1080125019	Jerry Hughes	That shot looked better. On the TV, anyway. No data are coming in. . . . There they are. Clearly higher RF was not the magic bullet we needed for this shot. H-modes are still radiative. The first H-mode has a transiently high H-factor (>1.7), but it quickly degrades. What happens if we slip SSEP quickly after the L-H transition? Next: Repeat shot 13 with 1MA current.
Jan 25 2008 03:09:52:827PM	1080125020	Jerry Hughes	E-port is unhappy, and cuts out at t=0.64. Two radiative H-modes initiated at SSEP 0f -4mm and -2mm, and a third dithering H-mode at +4mm. Probably not worth continuing at this condition. Next: Lower Ip to 600kA.
Jan 25 2008 03:42:42:850PM	1080125021	Jerry Hughes	600kA. Radiation is much happier. H-mode is maintained until disruption at ~1.3s. Two distinct pedestal punp-outs, each associated with an SSEP upward jog, are seen at t~0.85s and t~1.2s. SSEP plateaus are at ~0mm and ~+4mm Next shot: Raise SSEP plateaus to bias more USN.
Jan 25 2008 03:41:27:660PM	1080125022	Jerry Hughes	600kA. SSEP plateaus of +4mm and +6mm. By the end ne,ped is <1e20 m^-3. Ends in a disruption, unfortunately. Next shot: Try to lower SSEP plateaus.
Jan 25 2008 03:56:08:943PM	1080125023	Jerry Hughes	600kA. Due to a miscommunication, the ZCUR plateaus from shot 21 were raised instead of lowered, so basically we got a repeat of shot 22. (SSEP of +4, +6) Next shot: Try to lower SSEP plateaus to -2mm, +2mm
Jan 25 2008 04:08:14:880PM	1080125024	Jerry Hughes	600kA. near DN through most of the H-mode. How much boron have we worn off, exactly? Next shot: Go back to 800kA, Try two SSEP plateaus of about -5mm, -2mm. 3MW RF. (Almost a repeat of shot 11.)
Jan 25 2008 04:22:50:503PM	1080125025	Jerry Hughes	Back to 800kA. Two SSEP plateaus of about -5mm, -2mm. 3MW RF. Fairly radiative H-modes. Clearly the boronization has deteriorated since shot 11. However, early in the first H-mode, the Te, and ELMy characteristics are pretty similar. Next: Ramp the power up to 4MW and see what happens.
Jan 25 2008 04:46:24:440PM	1080125026	Jerry Hughes	Interesting shot. Prad got under control at 0.87, and as more RF ramped to 4MW, the H-mode persisted. As the SSEP swept closer to DN, the H-mode recovered back to its original stored energy (albeit with more RF). Next shot: Ramp RF to 5MW instead of 4MW.
Jan 25 2008 05:03:13:910PM	1080125028	Jerry Hughes	It's looking a lot like the boronization is shot. 5 H-modes with ELM-free characteristics. SSEP was flat at -5mm. E-port stopped after 1s. NExt shot: Retry with pump WARM.
Jan 25 2008 05:09:07:337PM	1080125029	Jerry Hughes	No plasma. End of run.

Physics Operator Comments
Jan 25 2008 09:02:50:590AM	1080125001	Ron Parker	Good morning! All systems go at 9:00, first shot coming up.
Jan 25 2008 09:13:09:230AM	1080125001	Ron Parker	Shot 1 started up OK and had the programmed ZCUR, but disrupted at t = 1.2 s.
Jan 25 2008 09:27:03:853AM	1080125001	Ron Parker	Right gap seems to be too large, reduce by 1 cm on next shot.
Jan 25 2008 09:35:13:897AM	1080125002	Ron Parker	Shot 2 was a dud, not enough fill gas following disruption. Increase pulsed gas by 20 ms for next shot.
Jan 25 2008 09:56:41:793AM	1080125003	Ron Parker	Shot 3 ran well. Next: Moving on to point 2, 1 MA, 1.0e20 m-2.
Jan 25 2008 10:17:56:397AM	1080125004	Ron Parker	Shot 4 fizzled, way too much gas (X2).
Jan 25 2008 10:19:20:650AM	1080125005	Ron Parker	Shot 5 ran as programmed. Now we're having fun. On to shot 3 in run plan, 600 kA, 8e19 m-2.
Jan 25 2008 10:33:32:977AM	1080125006	Ron Parker	Shot 6 ran well, but density was ~0.9e19 instead of 0.8e19. Fussy SL! Try again with density programming set at 0.6e19.
Jan 25 2008 10:47:54:230AM	1080125007	Ron Parker	Shot 7 was a dud, it turned out that cryopump was pumping, although not intended. Try again, no change in pulsed gas, cryopump off.
Jan 25 2008 11:05:17:470AM	1080125008	Ron Parker	Shot 8 ran well, producing the requested conditions. Next: Reload shot 3, cryopump on so pulsed gas pulse up to 38 ms
Jan 25 2008 11:24:52:053AM	1080125009	Ron Parker	Shot 9 ran, but disrupted. Shot 3 was not loaded as shot called for.
Jan 25 2008 11:43:07:887AM	1080125010	Ron Parker	Shot 10 ran, but also disrupted at 1.42 s. Next: Target density decreased to 0.7e20 m-2. Ssep according to shot B2b in Run Plan
Jan 25 2008 12:19:05:583PM	1080125011	Ron Parker	Shot 11 ran well, as requested. Full length.
Jan 25 2008 12:19:40:070PM	1080125012	Ron Parker	Shot 12 ran well, full length.
Jan 25 2008 12:20:25:307PM	1080125013	Ron Parker	Shot 13 ran well, good shot. Cryopump not pumping as well as it did earlier.
Jan 25 2008 12:50:29:730PM	1080125014	Ron Parker	Shot 14 was an Ohmic shot, taken while waiting for cryopump repairs.
Jan 25 2008 01:30:37:493PM	1080125014	Ron Parker	Cryopump is repaired. Shot 15 will be with cryo on.
Jan 25 2008 01:38:06:097PM	1080125015	Ron Parker	Shot 15 ran full length. Double H-Modes.
Jan 25 2008 01:50:53:770PM	1080125016	Ron Parker	Shot 16 ran full length, triple H-Modes.
Jan 25 2008 01:58:20:103PM	1080125016	Ron Parker	Short delay while the cause of a breaker pulling out is investigated.
Jan 25 2008 02:06:37:770PM	1080125017	Ron Parker	Shot 17 had an early disruption -- 28 ms.
Jan 25 2008 02:16:23:720PM	1080125018	Ron Parker	The shot will be a no-power shot.
Jan 25 2008 02:29:43:407PM	1080125018	Ron Parker	Only kidding, shot 18 was run with full Plasma power but without ICRF. Shot disrupted at 1.28 s.
Jan 25 2008 02:33:46:957PM	1080125019	Ron Parker	Well, shot ran (full length, I think) but data not coming up.
Jan 25 2008 02:38:16:277PM	1080125019	Ron Parker	Shot 19 data came up. Periodic H modes.
Jan 25 2008 02:47:14:960PM	1080125019	Ron Parker	Shot 19 ran full length. Next: Reload shot 13 and set current to 1 MA.
Jan 25 2008 02:57:31:843PM	1080125020	Ron Parker	Shot 20 ran full length, triple H-modes.
Jan 25 2008 03:07:23:357PM	1080125020	Ron Parker	Next: repeat shot 20, lower current (600 kA)
Jan 25 2008 03:11:23:843PM	1080125021	Ron Parker	Shot 21 ran well until t ~ 1.35 ms, then disrupted.
Jan 25 2008 03:43:37:553PM	1080125022	Ron Parker	Shot 22 ran well until disrupting at ~ 1.3 ms.
Jan 25 2008 03:55:54:130PM	1080125023	Ron Parker	Shot 23 was OK, disrupted again at ~ 1.4 s.
Jan 25 2008 04:07:05:503PM	1080125024	Ron Parker	Shot 24 looked pretty much the same, disrupting at ~ 1.3 s. For shot 25, return to shot 11 with less ramp in ZCUR.
Jan 25 2008 04:23:10:210PM	1080125025	Ron Parker	Shot 25 ran well, full length. Next: Same shot, more ICRF power.
Jan 25 2008 04:30:32:157PM	1080125026	Ron Parker	Shot 26 ran, but disrupted at ~ 1.3 s. Next: same shot, more RF power.
Jan 25 2008 04:40:55:027PM	1080125027	Ron Parker	Shot 27 disrupted again
Jan 25 2008 05:01:15:363PM	1080125028	Ron Parker	Shot 28 disrupted, but made it to 1.55 s. Next and last: Same shot, no cryopump.
Jan 25 2008 05:30:29:037PM	1080125029	Ron Parker	Shot fizzled, probably due to cryo having been turned off after shot 28. Pulsed gas pulse was reduced to 18 ms (from ~ twice that with cryo) and H alpha had normal peak, but shot fizzled anyway.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:02:47:043AM	Plasma	Ok
2	09:27:08:167AM	Plasma	Ok
3	09:39:38:243AM	Plasma	Ok
4	09:56:04:217AM	Plasma	Ok
5	10:08:36:823AM	Plasma	Ok
6	10:22:31:247AM	Plasma	Ok
7	10:35:19:230AM	Plasma	Ok
8	10:48:53:400AM	Plasma	Ok
9	11:08:15:690AM	Plasma	Ok
10	11:21:59:753AM	Plasma	Ok
11	11:41:57:510AM	Plasma	Ok
12	12:02:06:643PM	Plasma	Ok
13	12:15:25:767PM	Plasma	Ok
14	12:47:21:727PM	Plasma	Ok
15	01:34:45:733PM	Plasma	Ok
16	01:47:35:373PM	Plasma	Ok
17	02:02:01:263PM	Plasma	Ok
18	02:14:32:763PM	Plasma	Ok
19	02:30:46:800PM	Plasma	Ok
20	02:54:29:763PM	Plasma	Ok
21	03:07:56:717PM	Plasma	Ok
22	03:28:06:457PM	Plasma	Ok
23	03:44:27:757PM	Plasma	Ok
24	03:56:54:117PM	Plasma	Ok
25	04:09:23:770PM	Plasma	Ok
26	04:24:00:040PM	Plasma	Ok
27	04:38:26:103PM	Plasma	Ok
28	04:53:55:590PM	Plasma	Ok
29	05:06:24:833PM	Plasma	Ok

System Availability

Jan 25 2008 09:02:27:263AM

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 fine. Midplane foils working fine, but need to fill tree with calibrations. 2D AXUV arrays are being digitized but need further debugging and calibration. Dec 19 2007 07:16PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no First Boronization 5/9/07 Bottle has been removed from the cell Sep 14 2007 12:42PM (dekow) 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 no Problem with LO's Jan 10 2008 01:17PM (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 yes Working fine. Nov 29 2007 01:36PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Working, moderate speed for now. Jan 02 2008 01:19PM (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. 5 photo detectors have been shipped out for repair, so currently only 5 channels are available. We expect the full channels will be available late in Jan 08. Jan 04 2008 01:11PM (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 no Both CO2 and HeNe Lasers are disabled----- safe for machine entry. Sep 14 2007 03:21PM (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 50, 60, 75 and 88GHz channels are connected and being tested for the campaign Dec 18 2007 10:28AM (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 CO2 Laser is on --- initial alignment complete Nov 16 2007 01:23PM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes 8 polychromators, 1 laser. Density is calibrated for YAG2. YAG1 is not calibrated yet. Jan 17 2008 11:51PM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes System is working. Density is derived with last year's calibration, and should be good to within ~20%. Jan 18 2008 07:27AM (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 Jan 10 2008 11:41AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke