Miniproposals

Miniproposal: 468 Date Filed: 3/8/2007 Title: LH-driven fast electron diffusion time measurement First Author: Andrea Schmidt Session Leader: Andrea Schmidt (shots 1-12) Session Leader: Andrea Schmidt (shots 18-29)

Miniproposal: 473 Date Filed: 3/9/2007 Title: Lower Hybrid System Check-out and Initial operation First Author: J. Randall Wilson Session Leader: Greg Wallace (shots 13-17)

Engineering Operator Run Comment

MP#468 LH-driven fast electron diffusion SL: Schmidt PO: Rowan

Session Leader Plans

Entered: May 23 2007 05:19:15:943PM

Author: Andrea Schmidt

Start out the day with fast-modulated LH at 60 deg ideal phasing to obtain two conditions (preferably 4 good shots at each condition): 1) nl04=5e19, Ip=800 kA (starting shot 1070523023) 2) nl04=5e19, Ip=500 kA Then change to 120 degree ideal phasing to obtain one condition: 1) nl04=5e19, Ip=800 kA If there is extra time, we will change to 90 degree ideal phasing to obtain one condition: 1) nl04=7.5e19, Ip=500 kA

Physics Operators Plans

Entered: May 23 2007 03:41:53:017PM

Author: Bill Rowan

Physics Operator Plan for Thursday, May 24, 2007 MP#468 LH-driven fast electron diffusion SL: Schmidt PO: Rowan Engineering Setup ------------------ ECDC overnight in D2, pressure=2e-4 Torr. Rmin/Rdwell/Rmax = 44/45/103 cm. Bake at 60 C. Run begins at 09:00 and ends at 17:00 Power systems as on 1070523022 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) pump out NINJA then disable. Enable the following gate valves and shutters, assuming no vacuum problems: ECE, VUV, Z-bolo shutters Torvac setup: Pumpstack gatevalves OPEN RGA's valved off (isolated from machine) RF Systems: ---------- LH full power No ICRF for this run

Session Leader Summaries

Entered: May 24 2007 04:52:50:710PM

Author: Greg Wallace

60 degree ideal current drive with same plasma as yesterday went into H-mode immediately after LH turned off. Switched to 120 degree ideal phasing but could not couple even after moving upper x-point out and reducing outer gap to near zero. Even with "zero" outer gap there was no heating on the LH grill or limiters.

Entered: May 24 2007 05:13:28:313PM

Author: Andrea Schmidt

We tried to obtain LH-modulated xray data for several plasma conditions. We started with 60 degree ideal phasing, Ip=800, nl04=5e19 (shots 1-7). Out of these, shots 5-7 were very successful with no/few trips and LH coupled powers where we wanted them, a little higher than 400 kW. We then lowered to Ip=500 (shots 8 to 12), with few/no trips on shots 10-12. Shots 13-17 were run by Greg Wallace on MP 473. We then changed the LH phasing to 120 degrees ideal. For shots 18+, we tried to couple the 120 deg LH modulation, with good results on shots 22, 26, and 29.

Physics Operator Summaries

Entered: May 24 2007 06:00:13:613PM

Author: Ron Parker

This run did not place heavy demand on the PO as the shots were mainly Ohmic with various levels of LH power. The run was mostly devoted to Andrea's MP468. The machine performed well for most of the day. Problems were encountered in coupling the LH power at high n_par (~3.1) since a small evanescent layer at the grill makes coupling much more difficult at high n_par. We ended up pushing the outer gap negative in order to bring the density at the grill up to a level required for good coupling. (There is some question about EFIT's accuracy when the outer gap is + or - 1mm.) Still, even with reasonable grill densities, trips in the LH pulse train were a problem. In the future it seems that we could afford to desensitize a few reflection coefficient trip levels. But in the end, good data were obtained at the high n_par for 800 kA and nl_04 ~5-6e19m-2. One problem that developed late in the run, specifically shots 26 and 27 (the latter was a dud) was a sudden increase in BZ(0) to 2.5 mT positive. The cause was traced to OH1 current not following accurately its demand (off by about 300 amps.) As mentioned, this caused a dud on shot 27, but was corrected for shot 29 by delibeerately setting the demand for OH1 300 A greater than the usual level (from -19,600 to -19,300). With this change, BZ(0) was restored to 0 and shot 29 went off well. [PO FOR 1070525 PLEASE NOTE]. Scorecard: 29 attempts at plasma, 2 duds (one of which was due to aforemtnioned OH1 problem), 1 disruption, 1 fizzle following disruption, 1 no power shot(PO error in loading shot) and 24 full length shots.

Session Leader Comments
May 24 2007 09:11:10:957AM	1070524001	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing. Next shot will be the same.
May 24 2007 09:33:21:370AM	1070524002	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing. Next shot will be the same.
May 24 2007 09:59:01:367AM	1070524003	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing. Next shot will be the same.
May 24 2007 10:30:11:330AM	1070524005	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing. Next shot will be the same.
May 24 2007 11:10:32:737AM	1070524006	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing. Next shot will be the same.
May 24 2007 11:10:51:487AM	1070524007	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing. Next shot will be lower current (500 kA).
May 24 2007 11:11:15:050AM	1070524008	Andrea Schmidt	Low density (nl04=5e19), modulated LH pulses from 0.5 to 1.5 s, 60 degree ideal phasing, Ip=500 kA. Next shot will be same.
May 24 2007 12:41:39:397PM	1070524013	Greg Wallace	60 degree ideal repeat of shot 1070523017. Waves barely accessable into L-mode. Plasma went into H-mode after end of LH pulse, possibly because of sudden jump in ohmic heating power. Next shot will be same but with 120 ideal phasing.
May 24 2007 01:23:11:500PM	1070524014	Greg Wallace	120 ideal current drive direction. High intrinsic reflection on top row caused nothing but trips. Next shot will move upper x-point out by 2cm to increase density on top half of grill.
May 24 2007 01:46:50:750PM	1070524016	Greg Wallace	More trips. Top row is still the problem. Next shot will move upper x-point out by 1.5cm.
May 24 2007 04:50:52:710PM	1070524017	Greg Wallace	More trips. Top row is still the problem. Turning the run over to Andrea.

Physics Operator Comments
May 24 2007 08:45:51:887AM	1070524001	Ron Parker	Coorection: Parker will be PO today, replacing Rowan who will be PO on the 29th.
May 24 2007 08:51:41:310AM	1070524001	Ron Parker	First few shots will be loaded from 1070523023 with LH pulses.
May 24 2007 09:07:51:923AM	1070524001	Ron Parker	First shot ran well, several trips on LH pulses. Try it again.
May 24 2007 09:12:51:863AM	1070524001	Ron Parker	Short delay while TF Rogowski is checked.
May 24 2007 10:14:22:810AM	1070524002	Ron Parker	Shot 2 ran OK. CMODWS30 hung up after shot, resulting in delay needed to reboot.
May 24 2007 10:16:32:980AM	1070524003	Ron Parker	Shot 3 ran OK. Trouble with getting to logbook on Firefox.
May 24 2007 10:27:43:690AM	1070524004	Ron Parker	Shot 4 was a dud.
May 24 2007 10:38:01:473AM	1070524005	Ron Parker	Shot 5 ran well, no indication why 4 was a dud! Next: One more repeat.
May 24 2007 10:47:14:790AM	1070524006	Ron Parker	Shot 6 ran well, no drop outs in LH pulse train. One more repeat.
May 24 2007 11:26:56:820AM	1070524007	Ron Parker	Shot 7 ran OK, LH pulse train OK until ~ 1.4 s. Next: lower current to 500 kA, same density.
May 24 2007 11:27:18:400AM	1070524008	Ron Parker	Shot 8 ran OK, but LH tripped.
May 24 2007 11:29:26:853AM	1070524009	Ron Parker	Shot 9 ran OK, but LH pulse train gave up after ~0.9 s,even with several retries.
May 24 2007 12:02:14:977PM	1070524010	Ron Parker	Shot 10 ran well, good LH pulse train.
May 24 2007 12:02:53:740PM	1070524011	Ron Parker	Shot 11 was good, RF pulse train ran until end without fault.
May 24 2007 12:44:58:587PM	1070524012	Ron Parker	Shot 12 ran well, LH pulse train ran without faults.
May 24 2007 02:05:43:943PM	1070524013	Ron Parker	This shot reverted back to shot 1070523017 in attempt to reproduce H mode with 60 degree phasing. As expected (well, maybe after the fact), H-mode occurred only after LH turned off. This gave a "bump" in loop voltage that was apparently enough to trigger H-mode. [Note: After several Ohmic H-modes without LH it is not clear what role LH is playing]. Next, we'll stay with this shot but go to 120 deg phasing for better coupling after H-mode sets in. In addition, we'll close the "right gap" by 2 mm.
May 24 2007 01:43:11:950PM	1070524014	Ron Parker	Shot 14 ran OK, but LH did not due to multiple faults. Next: Move upper X-Point out 2 mm (oops) to improve coupling to top row.
May 24 2007 01:33:49:700PM	1070524015	Ron Parker	Same result, good shot, but no LH due to multiple trips.
May 24 2007 01:58:56:613PM	1070524016	Ron Parker	Again, good shot but no luck coupling and LH trips out on each retry. Next:try one more time--with RXU out 1.5 cm.
May 24 2007 02:29:42:440PM	1070524017	Ron Parker	Shot 17 ran well, but no luck in coupling. Top of columns 5&6 seem to be tripping the LH off.
May 24 2007 02:32:57:783PM	1070524018	Ron Parker	Shot 18 ran OK. We are back to Andrea's run, trying for fast modulation of LH power at 120 deg phasing. Unfortunately, there were still frequent trips for this shot. However, the density was reduced and this resulted in a drop of density at grill. Next: try again,with outer gap reduced by 2mm.
May 24 2007 02:49:32:337PM	1070524019	Ron Parker	Still coupling problems. Next: Close right gap 2 mm.
May 24 2007 03:06:42:953PM	1070524021	Ron Parker	Shot 20 did a little better with coupling, but not a full pulse train. Next: Close outer gap 2 more mm.
May 24 2007 03:15:23:923PM	1070524021	Ron Parker	Shot ran well, but RF faults apparently due to circulator arc in klystron 10. We'll lower that Klystron's power and try again.
May 24 2007 03:34:50:463PM	1070524022	Ron Parker	Success. Good shot, good RF pulse train. Next: repeat.
May 24 2007 03:42:02:967PM	1070524023	Ron Parker	Ouch! Shot 23 disrupted hard on the inner wall.
May 24 2007 03:56:37:753PM	1070524024	Ron Parker	Shot 24 was a "cleaning" shot, following the disruption. It fizzled. Next: Try again
May 24 2007 04:23:23:200PM	1070524025	Ron Parker	Shot 25 went off OK, but LH pulse train didn't.
May 24 2007 04:35:23:830PM	1070524026	Ron Parker	Shot 26 ran well and useful LH data was obtained. A couple of longer pulses interferred with the desired picket fence pulse train, but these can be accounted for in the data reduction.
May 24 2007 04:59:19:497PM	1070524027	Ron Parker	Another dud! Why? It appears that OH1 is not following its demand by ~ 300 A, which gives a BZ error of about +2mT. To correct, we've increased the OH1 current by 300 A, from -19,600 to -19,300 A. This problem began with shot 26.
May 24 2007 05:04:07:873PM	1070524028	Ron Parker	Shot 28 was a no power shot, OH1 current change wasn't loaded prior to init.
Jun 5 2007 02:08:02:543PM	1070524029	Ron Parker	Against all odds, the shot went, the LH pulse train was perfect (no trips) and Brock got to fire his pellet. More importantly, the OH1 was close to its nominal value even though it was set 300 A lower, i.e., set @ -19,300 and realized -19,700. This problem needs to be either fixed, or accounted for, for tomorrow's run.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:56:55:280AM	Plasma	Ok	TF rog. Failed
2	09:19:25:443AM	Plasma	Ok	TF rog. bad
3	09:55:41:553AM	Plasma	Ok
4	10:13:54:073AM	Plasma	Ok
5	10:26:39:250AM	Plasma	Ok
6	10:40:54:803AM	Plasma	Ok
7	10:53:40:717AM	Plasma	Ok
8	11:06:24:283AM	Plasma	Ok
9	11:20:46:897AM	Plasma	Ok
10	11:35:58:247AM	Plasma	Ok
11	11:51:17:800AM	Plasma	Ok
12	12:11:18:993PM	Plasma	Ok
13	12:29:17:877PM	Plasma	Ok
14	01:14:01:987PM	Plasma	Ok
15	01:27:12:440PM	Plasma	Ok
16	01:43:07:983PM	Plasma	Ok
17	02:03:41:757PM	Plasma	Ok
18	02:21:13:387PM	Plasma	Ok
19	02:34:05:830PM	Plasma	Ok
20	02:51:46:713PM	Plasma	Ok
21	03:05:34:810PM	Plasma	Ok
22	03:20:37:253PM	Plasma	Ok
23	03:37:37:620PM	Plasma	Ok
24	03:54:20:970PM	Plasma	Ok
25	04:06:55:257PM	Plasma	Ok
26	04:22:55:793PM	Plasma	Ok
27	04:40:55:503PM	Plasma	Ok
28	04:58:05:650PM	Plasma	Ok
29	05:09:34:360PM	Plasma	Ok

System Availability

May 24 2007 08:56:29:547AM

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 Bolometers yes 2Pi diode operational, 2Pi foil being upgrade for noise resistance. Midplane foils being digitized but not calibrated, still ICRF pickup. Midplane AXUV and divertor being digitized but analyzed data not ready. Apr 26 2007 10:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes First Boronization 5/9/07 May 10 2007 04:55PM (irby) Jim Irby Boronization dekow,irby CNPA no   Jan 14 2007 02:06PM  Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no In-vessel hardware is installed; in-vessel cryogenic systems are leak-tight and have passed LN2 cool-down tests. Work is proceeding on external LHe and LN2 transfer lines as well as PLC control system. Mar 30 2007 10:53AM (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=[75,4:87.4]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. May 01 2007 12:31PM (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 Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no   Jan 14 2007 02:02PM  Bob 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,ldorf,terry DNB yes All systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shots Mar 28 2007 09:36AM (beals) Bob Granetz Diagnostic Beam beals,granetz FRC-ECE yes All channels now working. Apr 04 2007 11:04AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes The gauge is operational. Mar 30 2007 10:54AM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland GPC yes Chs 1-8 operational. May 24 2007 08:40AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels (except 1,8,10,17) operational. Set to lower freqs for LHCD. May 24 2007 08:40AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI yes New view just outside of the lower X-point is operational, but data is being archived locally , not to the tree. Midplane GPI is not operational. Mar 27 2007 01:59PM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (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 yes Storing Data, but profiles not yet available Apr 27 2007 01:20PM (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 80.5 MHz. ready Mar 28 2007 08:50AM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna no 80 MHz. FFT installation/coaxial line needs more work Mar 16 2007 09:32AM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes 78 MHz Apr 04 2007 08:56AM (ylin) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid no 6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry) Ron Parker Lower Hybrid dterry,parker LPI yes   Apr 26 2007 08:35PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane data being digitized, but analyzed data not ready. 2D arrays being debugged. Apr 26 2007 10:28AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson yes Working normally. Apr 19 2007 09:52AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Mar 28 2007 08:33AM (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 Bench tests are proceeding on a prototype MLP system. We hope to roll the system into the cell for testing in a few weeks, powering up a single electrode on the A-port scanning probe. Mar 13 2007 09:57PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no (1) Bandpass filters replacement underway (2) Beam-into-gas spectrum measurement underway (3) Shutter mechanism currently unstable; remains open. (4) Expect beam-into-gas calibrations complete about 4/24. Apr 03 2007 12:05PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Both neutron systems are fully operational Apr 05 2007 11:19AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes operational Mar 21 2007 04:29PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter). Mar 29 2007 11:47AM (terry) Brian LaBombard NINJA gas puff labombard,terry PCI no System unavailable. The laser is under repair. Apr 04 2007 11:16PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges yes 8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'. Mar 13 2007 10:01PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational. Mar 27 2007 01:53PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby Probe Array - ISD yes Probes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:47PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Probes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes 14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis. Mar 13 2007 12:46PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes The 60, 110, 88LSB, 88USB and 88 are connected but still being tested. The Swept frequency channel is sweeping with the waveform voltage swept at 5Hz with the voltage 4V-8V (117.8GHz-135.5GHz), also in the testing stage. May 21 2007 07:26PM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A-port WASP successfully collected data on 04/04. Some intermittent open circuit on SE Electrode. K-WASP took data on 04/11. Both ready to scan as needed. Apr 12 2007 04:18PM (nsmick) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick TCI yes NL_04 at 71.04 cm from 3/9/07 calibration May 23 2007 07:38AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes 2 lasers, 11 spatial channels. Density is calibrated based on ECE cutoffs obtained on 4 May 2007. Additional spatial channels will be added over the next several weeks. May 10 2007 10:37AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes TS - Edge yes 2 lasers, 20 spatial channels. Fiber holder position is -125mm (standard). Density is cross-calibrated to the core system, based on shots 1070504014, 016, and 019. May 21 2007 02:39PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes Vispec yes 350 and 670 nm, 4 spatial channels May 04 2007 01:02PM (agraf) Alex Graf Visible Spectrometer agraf

May 24 2007 10:13:34:920AM

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 Bolometers yes 2Pi diode operational, 2Pi foil being upgrade for noise resistance. Midplane foils being digitized but not calibrated, still ICRF pickup. Midplane AXUV and divertor being digitized but analyzed data not ready. Apr 26 2007 10:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes First Boronization 5/9/07 May 10 2007 04:55PM (irby) Jim Irby Boronization dekow,irby CNPA no   Jan 14 2007 02:06PM  Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no In-vessel hardware is installed; in-vessel cryogenic systems are leak-tight and have passed LN2 cool-down tests. Work is proceeding on external LHe and LN2 transfer lines as well as PLC control system. Mar 30 2007 10:53AM (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=[75,4:87.4]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. May 01 2007 12:31PM (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 Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no   Jan 14 2007 02:02PM  Bob 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,ldorf,terry DNB yes All systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shots Mar 28 2007 09:36AM (beals) Bob Granetz Diagnostic Beam beals,granetz FRC-ECE yes All channels now working. Apr 04 2007 11:04AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes The gauge is operational. Mar 30 2007 10:54AM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland GPC yes Chs 1-8 operational. May 24 2007 08:40AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels (except 1,8,10,17) operational. Set to lower freqs for LHCD. May 24 2007 08:40AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI yes New view just outside of the lower X-point is operational, but data is being archived locally , not to the tree. Midplane GPI is not operational. Mar 27 2007 01:59PM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (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 yes Storing Data, but profiles not yet available Apr 27 2007 01:20PM (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 80.5 MHz. ready Mar 28 2007 08:50AM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna no 80 MHz. FFT installation/coaxial line needs more work Mar 16 2007 09:32AM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes 78 MHz Apr 04 2007 08:56AM (ylin) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid no 6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry) Ron Parker Lower Hybrid dterry,parker LPI yes   Apr 26 2007 08:35PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane data being digitized, but analyzed data not ready. 2D arrays being debugged. Apr 26 2007 10:28AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson yes Working normally. Apr 19 2007 09:52AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Mar 28 2007 08:33AM (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 Bench tests are proceeding on a prototype MLP system. We hope to roll the system into the cell for testing in a few weeks, powering up a single electrode on the A-port scanning probe. Mar 13 2007 09:57PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no (1) Bandpass filters replacement underway (2) Beam-into-gas spectrum measurement underway (3) Shutter mechanism currently unstable; remains open. (4) Expect beam-into-gas calibrations complete about 4/24. Apr 03 2007 12:05PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Both neutron systems are fully operational Apr 05 2007 11:19AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes operational Mar 21 2007 04:29PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter). Mar 29 2007 11:47AM (terry) Brian LaBombard NINJA gas puff labombard,terry PCI no System unavailable. The laser is under repair. Apr 04 2007 11:16PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges yes 8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'. Mar 13 2007 10:01PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational. Mar 27 2007 01:53PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby Probe Array - ISD yes Probes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:47PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Probes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes 14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis. Mar 13 2007 12:46PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes The 60, 110, 88LSB, 88USB and 88 are connected but still being tested. The Swept frequency channel is sweeping with the waveform voltage swept at 5Hz with the voltage 4V-8V (117.8GHz-135.5GHz), also in the testing stage. May 21 2007 07:26PM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A-port WASP successfully collected data on 04/04. Some intermittent open circuit on SE Electrode. K-WASP took data on 04/11. Both ready to scan as needed. Apr 12 2007 04:18PM (nsmick) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick TCI yes NL_04 at 71.04 cm from 3/9/07 calibration May 23 2007 07:38AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes 2 lasers, 11 spatial channels. Density is calibrated based on ECE cutoffs obtained on 4 May 2007. Additional spatial channels will be added over the next several weeks. May 10 2007 10:37AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes TS - Edge yes 2 lasers, 20 spatial channels. Fiber holder position is -125mm (standard). Density is cross-calibrated to the core system, based on shots 1070504014, 016, and 019. May 21 2007 02:39PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes Vispec yes 350 and 670 nm, 4 spatial channels May 04 2007 01:02PM (agraf) Alex Graf Visible Spectrometer agraf