Miniproposals

Miniproposal: 513 Date Filed: 7/23/2007 Title: LHCD Effects on Stable Alfvén Eigenmodes First Author: Joseph Snipes Session Leader: Joseph Snipes (shots 1-28)

Engineering Operator Run Comment

MP513 LHCD Effects on Stable Alfven Eigenmodes

Session Leader Plans

Entered: Jan 16 2008 04:22:03:010PM

Author: Joseph Snipes

Session Leader Run Plan for Thursday, 17 January 2008; 1080117 MP513 LHCD Effects on Stable Alfven Eigenmodes Session Leader: J. A. Snipes Physics Operator: J. A. Snipes Start with 1080109030 upper single null, but change BT to 4.5 T, Ip to 0.75 MA, and nl04 to 4 x 10^19 m^-2. Use the cryopump to maintain low density control. Start with an Ohmic plasma without LHCD to tune up the startup at 4.5 T. Once a good plasma is achieved, turn on LHCD with 90 degree phasing from t=0 and keep it on until 1.5 s starting with 0.4 MW. Pre-program the Active MHD antenna frequency using the upper antenna only so that the frequency sweeps first through the expected Alfven cascade frequency range from say 70 kHz to 450 kHz in the first 0.25 s, then sweep up to the center of the TAE gap frequency and sweep back and forth through the TAE frequency throughout the shot for a q=1.5 resonance. In this way, we will look for both stable Alfven cascade resonances in the current rise and stable TAE resonances in the flattop. We will repeat the shots twice to ensure some reproducibility. Then we will increase Ip to 1 MA and repeat the shots. Then, reduce Ip to 0.5 MA and repeat the shots. Then, we will repeat these Ip scans at 60 degree phasing. Then, we will repeat the Ip scans at 120 degree phasing. Finally, we will have some Ohmic comparison shots.

Physics Operators Plans

Entered: Jan 16 2008 03:19:43:143PM

Author: Joseph Snipes

Physop Run Plan for Thursday, 17 January 2008; 1080117 MP513 LHCD Effects on Stable Alfven Eigenmodes Session Leader: J. A. Snipes Physics Operator: J. A. Snipes ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1080109030 upper single null, but with 4.5 T, 0.75 MA 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 Disabled Enable gatevalves and shutters: ECE, VUV, DNB, Z-bolo Overnight ECDC in deuterium and 60 C bake ------------------------------ ECDC Parameters ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s ICRF: not required LH: 90 degree current drive phasing to start, 1.5 mm behind limiter DNB: not required but may operate Cryopump: on and cold for the first shot Vessel temperature: 35/35/35

Session Leader Summaries

Entered: Jan 17 2008 05:43:09:013PM

Author: Joseph Snipes

When the MP was approved, I was asked by the EPC to combine the current rise and flattop portions of the run. However, the LHCD system cannot run for more than about 0.5 s because of potential overheating problems in the cathode. So, it was not possible to run long LHCD pulses in both the current rise and flattop for the same discharge. This then requires more run time to run some shots in the current rise and other shots in the flattop. The run was also substantially delayed by problems with TF converter 1 circuits and by some computer malfunctions such as the one on shot 20. Operating at 4.5 T for breakdown also led to a number of problems achieving sustained current rises. After shot 14, we swiched to 5.4 T since the amplifier is capable of operating beyond 800 kHz even if the matching is not quite as good. Two shots (5 and 8) had very early LHCD from t=0 and showed some fast electron driven unstable TAEs, though not as clear as those submitted to PRL last year. The early LHCD changed the current density profile and led to locked modes that then led to early disruptions. Then, we tried a couple of shots (14 and 15) starting the LHCD at 0.1 s. However, no clear resonances were observed in the current rise for those shots, so we decided to concentrate on the flattop and moved the LHCD pulse to start at 0.6 s and end at 1.1 s for the rest of the run. We then did a current scan from 0.75 MA to 1 MA and back to 0.5 MA where good data were obtained. We then attempted to change the LHCD phase approximately from the control room to 60 degrees and we found that the LH did not couple well for two shots. Then, we returned to 90 degree phasing and 1 MA for the last two shots, which disrupted in the flattop due to locked modes and interaction with the LH grill. Further analysis is required to see whether or not resonances were found in the current rise, but there were a number of resonances in the flattop data.

Physics Operator Summaries

Entered: Jan 17 2008 05:17:14:763PM

Author: Joseph Snipes

It was a difficult run due to a number of problems. There were some problems with TF converter 1 circuits that cost time in the run. Operating at 4.5 T led to some difficulties with start up. So, from shot 14 on, we switched to 5.4 T, which resolved the breakdown problem. There were also some computer problems that cost us a few shots. LHCD early in the current rise appears to lead to locked modes and early disruptions. However, the last two shots also disrupted during LHCD in the flattop with locked modes. The last shot also had a large flash and injection from the LH grill just before the disruption. So, it was a tough run day to get physics done. Nonetheless, there were a number of good shots with active MHD that can be analyzed for resonances. There were 28 shots with 17 plasmas, 4 fizzles, 2 tests, 2 computer system failures, and 3 duds. Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result | 01 2.810 0.031 Fizzle | 02 2.000 0.761 Plasma | | 03 4.239 0.032 Dud | 04 4.196 0.758 Plasma | | 05 4.282 0.782 Plasma | 06 2.610 0.034 Fizzle | | 07 1.415 0.005 Dud | 08 4.230 0.757 Plasma | | 09 2.760 0.036 Dud | 10 1.979 0.003 Dud | | 11 4.280 0.037 Dud | 12 2.740 0.037 Fizzle | | 13 4.275 0.035 Fizzle | 14 3.650 0.775 Plasma | | 15 2.970 0.767 Plasma | 16 3.110 0.767 Plasma | | 17 3.010 0.771 Plasma | 18 2.950 0.763 Plasma | | 19 4.249 1.003 Plasma | 20 No Ip | | 21 2.410 0.002 Dud | 22 3.220 1.003 Plasma | | 23 3.300 1.015 Plasma | 24 3.020 0.633 Plasma | | 25 2.840 0.627 Plasma | 26 2.740 0.763 Plasma | | 27 4.139 1.061 Plasma | 28 3.380 1.028 Plasma | Date 1080117: 28 shots. 17 plasmas. 4 fizzles. 3 duds. 2 System Error and 2 tests. (Plasma = Ip gt 60.0 kA Dud = H_alpha lt 0.40 V) Total plasma duration: 86.80 s (exceeding -3 kA)

Session Leader Comments
Jan 17 2008 09:10:31:257AM	1080117001	Joseph Snipes	Starting at 4.5 T with an Ohmic shot to look for possible stable TAE resonances without LHCD and set up the shot. Pre-programmed Active MHD waveform to look for both Alfven cascade resonances in the current rise and TAE resonances at q=1.5 in the flattop.
Jan 17 2008 09:35:44:170AM	1080117002	Joseph Snipes	Good shot. TAE frequency is a little higher than the Active frequency since the density came out a bit lower than 4 x 10^19 m^-2.
Jan 17 2008 10:10:02:287AM	1080117004	Joseph Snipes	Good shot. TAE frequency is now in the right range with the density oscillating around 4 x 10^19 m^-2.
Jan 17 2008 10:22:37:520AM	1080117005	Joseph Snipes	Turned on LHCD from 0 to 0.5 s. It turns out that the LHCD system cannot run for much more than 0.5 s because of possible overheating in the event of a trip. Disrupted early though the LH guys say it was not due to the LH.
Jan 17 2008 11:30:13:757AM	1080117008	Joseph Snipes	This shot also disrupted early. It looks like the LHCD is generating a locked mode starting at about 0.08 s that may lead to the disruption. So, we'll try turning on the LHCD at 0.1 s instead.
Jan 17 2008 02:02:17:150PM	1080117015	Joseph Snipes	Good shot for the current rise data.
Jan 17 2008 02:12:30:100PM	1080117016	Joseph Snipes	Good shot for the flattop data at 0.75 MA and 5.4 T though the frequency scan does not sweep through the center of the gap but instead just touches the bottom of the gap.
Jan 17 2008 02:24:42:567PM	1080117017	Joseph Snipes	Even better shot for the flattop data at 0.75 MA and 5.4 T.
Jan 17 2008 02:33:05:310PM	1080117018	Joseph Snipes	Good shot for the flattop data at 0.75 MA and 5.4 T except that there is a locked mode that appears to start around 0.15 s on the magnetics.
Jan 17 2008 02:47:09:030PM	1080117019	Joseph Snipes	Good shot for the flattop data at 1 MA and 5.4 T except that the LH tripped. We can use this as an Ohmic comparison.
Jan 17 2008 03:57:38:080PM	1080117023	Joseph Snipes	Good shot for the flattop data at 1 MA and 5.4 T with two LHCD pulses at 0.6 MW.
Jan 17 2008 04:09:26:047PM	1080117024	Joseph Snipes	Good shot for the flattop data at 0.5 MA and 5.4 T with LHCD at 0.6 MW and 90 degree phasing.
Jan 17 2008 04:35:30:983PM	1080117025	Joseph Snipes	Good shot for the flattop data at 0.5 MA and 5.4 T without LHCD.

Physics Operator Comments
Jan 17 2008 09:12:43:413AM	1080117001	Joseph Snipes	Shot 1: Copied shot 1080109030. Lowered TF current to 125 kA in both segments 1 and 3 (and 2 by mistake). Lowered Ip to 0.75 MA in segment 3. Left nl04 at 3.5 x 10^19 m^-2 since we did not get as low as the requested 4 x 10^19 m^-2 on the shot we copied. Enabled argon puff with 100 ms puff. Fizzle!
Jan 17 2008 09:25:01:173AM	1080117002	Joseph Snipes	Shot 2: Reduced prepuff from 49 ms duration to 40 ms duration. Increased EF4 current by 35 A to -1385 A. Good shot.
Jan 17 2008 09:38:15:703AM	1080117003	Joseph Snipes	Shot 3: Raised nl04 to 4 x 10^19 m^-2. Dud.
Jan 17 2008 09:50:16:140AM	1080117004	Joseph Snipes	Shot 4: Raised prepuff back to 49 ms duration. Good shot with some runaways early though.
Jan 17 2008 10:34:54:817AM	1080117005	Joseph Snipes	Shot 5: Raised prepuff back to 49 ms duration. Good shot with some runaways early though. Disrupted at 0.26 s.
Jan 17 2008 10:35:10:630AM	1080117006	Joseph Snipes	Shot 6: Repeat to try to improve the shot. Fizzle!
Jan 17 2008 10:55:14:467AM	1080117006	Joseph Snipes	Brief delay (> 30 min) to replace TF converter 1 circuit board.
Jan 17 2008 11:01:40:287AM	1080117007	Joseph Snipes	Shot 7: TF test shot.
Jan 17 2008 11:30:35:710AM	1080117008	Joseph Snipes	Shot 8: Try again for plasma with LHCD from 0 to 0.5 s. Disrupted again at 0.3 s.
Jan 17 2008 11:32:58:117AM	1080117008	Joseph Snipes	Another brief delay to check out the TF converter 1 board.
Jan 17 2008 11:47:10:917AM	1080117009	Joseph Snipes	Shot 9: Try starting LHCD at 0.1 s to attempt to avoid the early locked mode. Dud!
Jan 17 2008 11:54:40:910AM	1080117009	Joseph Snipes	Another delay to check out the TF converter circuits.
Jan 17 2008 12:19:57:767PM	1080117010	Joseph Snipes	Shot 10: TF test shot.
Jan 17 2008 12:37:46:380PM	1080117011	Joseph Snipes	Shot 11: Increased Br0 by 0.2 mT to 0.2 mT. Increased prepuff by 4 ms to 54 ms duration. Another dud!
Jan 17 2008 12:50:56:207PM	1080117012	Joseph Snipes	Shot 12: Try raising the prepuff by another 4 ms to 59 ms duration. Fizzle!
Jan 17 2008 01:19:36:037PM	1080117013	Joseph Snipes	Brief delay due to computer problems.
Jan 17 2008 01:20:51:040PM	1080117013	Joseph Snipes	Shot 13: Returned Br0 to 0. Raised prepuff to 62 ms duration. Fizzle!
Jan 17 2008 01:46:06:710PM	1080117014	Joseph Snipes	Shot 14: Change TF current to 150 kA to attempt to avoid these breakdown problems. Reloaded segment 1 from shot 1080109030 to get the old breakdown conditions. Good shot. Disrupted at 1.66 s in rampdown.
Jan 17 2008 01:55:26:643PM	1080117015	Joseph Snipes	Shot 15: Repeat. Good shot.
Jan 17 2008 02:04:02:497PM	1080117016	Joseph Snipes	Shot 16: Repeat with LHCD from 0.6 to 1.1 s. Good shot.
Jan 17 2008 02:17:19:497PM	1080117017	Joseph Snipes	Shot 17: Repeat with higher LHCD power and slightly lower Active MHD frequency. Good shot.
Jan 17 2008 02:30:19:277PM	1080117018	Joseph Snipes	Shot 18: Increased prepuff by 4 ms to 54 ms duration. Increase LHCD power some more. Good shot.
Jan 17 2008 02:43:23:370PM	1080117019	Joseph Snipes	Shot 19: Increased Ip to 1 MA. Increased prepuff to 58 ms duration. Good shot.
Jan 17 2008 02:57:54:590PM	1080117020	Joseph Snipes	Shot 20: Repeat with LHCD. Added some pre-programmed gas on pulse gas 3 in segment 1 just before 0.1 s and in segment 3 from 0.1 to 0.175 s to attempt to eliminate the early runaways. Problems with the data acquisition at pulse led to a no power shot.
Jan 17 2008 03:17:37:377PM	1080117021	Joseph Snipes	Shot 21: More computer problems did not update the shot counter on the big board again but this time there were some power supplies but not all of them. Only 0.25 T for the TF! No plasma.
Jan 17 2008 03:50:01:117PM	1080117022	Joseph Snipes	Shot 22: One more time . . . Good shot. Disrupted at 1.618 s in rampdown. LH tripped again.
Jan 17 2008 03:51:52:090PM	1080117023	Joseph Snipes	Shot 23: Increased early pre-programmed gas form pulse_gas3 in segments 1 and 3 again to try to eliminate the early runaways. There was a brief delay to do some test shots for LH offline. Good shot. Disrupted in rampdown at 1.65 s.
Jan 17 2008 04:09:20:123PM	1080117024	Joseph Snipes	Shot 24: Reduced Ip to 0.5 MA. Good shot.
Jan 17 2008 04:20:32:967PM	1080117025	Joseph Snipes	Shot 25: Change to 60 degree phasing of the LHCD. Good shot.
Jan 17 2008 04:38:02:703PM	1080117026	Joseph Snipes	Shot 26: Changed to Ip = 0.75 MA and moved RXU out 2 cm to improve coupling with the LH grill. Good shot.
Jan 17 2008 04:58:33:057PM	1080117027	Joseph Snipes	Shot 27: Changed back to 90 degree phasing and Ip = 1 MA. Disrupted at 1.037 s. Looks like there is a locked mode on the ECE starting around 0.6 s.
Jan 17 2008 05:07:56:927PM	1080117028	Joseph Snipes	Shot 28: Changed Ip ramp to slow it down slightly near 0.5 s to attempt to avoid the locked mode there. Disrupted at 0.86 s. Locked mode persists starting just before 0.6 s and leads to the disruption. There is also an arc at the bottom of the LH grill just before the disruption.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:10:17:100AM	Plasma	Ok
2	09:23:20:063AM	Plasma	Ok
3	09:35:47:937AM	Plasma	Ok
4	09:48:19:107AM	Plasma	Ok
5	10:10:05:070AM	Plasma	Ok
6	10:22:51:617AM	Plasma	Ok
7	11:05:31:023AM	Test	Ok	100KA TF test PLC control
8	11:19:59:667AM	Plasma	Ok	TF conv 1 faults
9	11:45:06:227AM	Plasma	Ok
10	12:22:24:927PM	Test	Ok	50 KA TF test
11	12:35:36:220PM	Plasma	Ok
12	12:49:11:143PM	Plasma	Ok
13	01:19:15:507PM	Plasma	Ok
14	01:34:00:803PM	Plasma	Ok
15	01:47:57:993PM	Plasma	Ok
16	02:02:25:227PM	Plasma	Ok
17	02:15:36:023PM	Plasma	Ok
18	02:28:45:163PM	Plasma	Ok
19	02:41:27:790PM	Plasma	Ok
20	02:54:15:680PM	Plasma	Bad	ACK Failure
21	03:12:26:950PM	Plasma	Bad	igor problems
22	03:28:23:357PM	Plasma	Ok
23	03:49:45:040PM	Plasma	Ok
24	04:03:08:900PM	Plasma	Ok
25	04:18:47:570PM	Plasma	Ok
26	04:36:14:403PM	Plasma	Ok
27	04:49:01:840PM	Plasma	Ok
28	05:01:46:120PM	Plasma	Ok

System Availability

Jan 17 2008 09:09:59:460AM

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 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 uncalibrated. Jan 03 2008 08:31AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes System is working. Alignment w.r.t. YAG is not optimized yet, so measurements may be noisy. Density is uncalibrated. Jan 09 2008 09:07AM (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