Miniproposals

Miniproposal: 537 Date Filed: 2/21/2008 Title: Momentum impulse from rapid ssep changes First Author: Kenneth Marr Session Leader: Kenneth Marr (shots 1-31)

Engineering Operator Run Comment

MP 537: Momentum impulse from rapid SSEP changes

Session Leader Plans

Entered: Mar 13 2008 04:08:11:203PM

Author: Kenneth Marr

Session Leader Plan 1080314 - KMarr MP 537: Momentum impulse from rapid SSEP changes. The purpose of this run is to capture the effect of the 'edge event' generated when the plasma is moved from LSN to USN (or vice versa) in a very short amount of time (~10ms). Recent results imply there is a propagation of momentum in the core region. The measurements in the pedestal region show some indication that this edge event might not propagate through the pedestal but rather cause a re- arrangement of flows there. Requested systems: *Cryopump available *Enable NINJA with 10psi D2, for diagnostic gas puffing. *Scanning probes; WASP *Argon for Hirex family. *DNB request: at least 6A, 30/15ms ON/OFF, starting at 0.5s. A. Ip = 0.8MA nl_04 = 8.0e19m-2, lgap = 10mm Basic shot from 1080227032 Load whatever startup works best. Additional changes to this shot are: Move first sweep (LSN to USN) to 0.7s. 2nd sweep (USN to LSN) at 1.0s still but increase to 10mm shift in 10ms. Add 3rd sweep at 1.3s back to USN. Maintain 1cm gap. Compensate for shift in Lgap at sweeps with a forced gap reduction/increase? Cryopump on to maintain density during sweep. Expected 6-8 shots to get all the systems together. Once this shot is achieved to satisfaction, repeat for scanning probe participation. Likely 3 shots to get probes plunging correctly to capture flows before the sweep, then another 3 shots for flows after the sweep. B. Ip = 0.8MA nl_04 = 8.0e19m-2 lgap = 7mm Repeat A. but put the IW gap at 7mm rather than 10. The location that shows little velocity change with the ssep sweep might be fixed in space or a fixed distance from the separatrix. (2 shots or 7 w/ probes) C. Ip = 0.8MA nl_04 = 8.0e19m-2 lgap = 13mm Similar to A, B. Complete gap scan. (2 shots or 7 w/ probes) D. Ip = 1.0MA nl_04 = 8,0e19m-2 lgap = 10mm Drive hotter plasmas to explore the effect of pedestal temperature on the momentum transport. (8 shots including probes.) E. Ip = 0.6MA nl_04 = 8,0e19m-2 lgap = 10mm Similar to D. (8 shots including probes) If there's still time explore changing the momentum by changing the density: F. Ip = 0.8MA nl_04 = 1e20 m-2 G. Ip = 1.0MA nl_04 = 1e20 m-2

Physics Operators Plans

Entered: Mar 13 2008 03:27:14:203PM

Author: Jim Irby

----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1080227032 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 ENABLED (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 ENABLED Enable gatevalves and shutters: ECE, VUV, DNB, Z-bolo Torvac gatevalve toggle (yes/no): no Boronization(yes/no): no Overnight ECDC (yes/no): yes ICRF(yes/no): yes LH(yes/no): no DNB(yes/no): yes Cryopump (yes/no): yes Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s

Entered: Mar 13 2008 05:30:01:627PM

Author: Jim Irby

Loaded from 1080227032 loaded

Session Leader Summaries

Entered: Mar 14 2008 05:48:18:777PM

Author: Kenneth Marr

Tough crowd today for this run. We managed a struggling start after a busted capacitor. Two shots disrupted from a too quick sweep back to LSN (004,006) and were each followed by fizzles. Shot 009 was the first full length plasma that served as the target for Part A. After this the probes were activated and finally saw a shot at 015. By the end we'd measured the LSN (021) and the USN (029) with probes. All the rest of the shots but 026 were fizzles. The run was successful at incorporating the DNB CXRS and the Mach probes into the sweeping ssep experiment. The flows were seen to change at the first sweep and generally recover their original velocity at the 2nd sweep. The marfe on shot 026 supressed flow modification during the return to LSN. Despite a disappointingly small amount of actual plasmas, there was likely enough data collected to make some statements about flows and flow profiles. Also we will have a better understanding of what to look for when this run is repeated for the other parts. Shot summary: 1-3: no power. 004: Plasma disrupts after 1.0s 006: Plasma disrupts after 1.0s 009: Plasma - No probes. 015: Plasma - Probes in LSN portion. Could be deeper 021: Plasma - Probes in LSN portion. Satisfactory 026: Plasma - Cryopump off, Probes in USN portion. MARFE. Unsatisfactory. 029: Plasma - Cryopump on. Beam off. Probes in USN portion. Marginally satisfactory. All other shots to 031: Fizzle.

Physics Operator Summaries

Entered: Mar 14 2008 05:47:18:527PM

Author: Jim Irby

This was a very painful run. We spent two hours in the morning fixing a shorted cap in the ef1 commutation bank and then testing the bank. Finally on shot 04 we got our first plasma which disrupted at 1.05 s. The next plasma, shot 06, also disrupted around 1 s, probably because of the speed of the 2nd jog programmed for 1.0 s. We increased the jog time from 10 to 20 ms, and when we got a plasma on shot 09, it ran into rampdown. However, we continued to have problems the rest of the day with startup. A couple of shots were lost because the cryopump was not running effectively, and the prefill pressure was too high. Other shots may have been lost because the dnb was firing into the wall during fizzles. During plasma discharges light and injections around the location where the dnb hits the wall during fizzles could be seen. We plan to fix this problem on Monday by reinstalling the fizzle detector for the dnb. It was generally very difficult to adjust the prefill without either having too much gas or too little. This effect may have been caused by variations in the cryopump pumping speed. Adjustments in rcur were made on shot 29 that may have helped keep the startup plasma off the wall over a larger range of prefill pressures. ef1 com bank fault 01 tests 02,03 plasma 04, 06, 09, 15, 21, 25, 29 rest fizzles

Session Leader Comments
Mar 14 2008 09:13:38:210AM	1080314001	Kenneth Marr	No power shot.
Mar 14 2008 10:38:01:837AM	1080314002	Kenneth Marr	No power shot.
Mar 14 2008 10:50:59:447AM	1080314003	Kenneth Marr	No power shot.
Mar 14 2008 11:14:18:073AM	1080314004	Kenneth Marr	First plasma. Disrupts on 2nd jog perhaps. 1st jog looks okay. Next: Repeat but move gas puff.
Mar 14 2008 11:14:33:090AM	1080314005	Kenneth Marr	Fizzle
Mar 14 2008 11:46:18:290AM	1080314006	Kenneth Marr	Plasma - Disrupts on the 2nd sweep. Some velocity changes seen on puff views. DNB CXRS does not see change in velocity. CXRS on main ion sees velocity change. Next shot. Single probe plunge before 1st sweep. Slow 2nd ramp to control plasma after.
Mar 14 2008 11:54:01:383AM	1080314008	Kenneth Marr	Post disruption fizzle.
Mar 14 2008 12:37:31:680PM	1080314009	Kenneth Marr	Good shot. Clear changes in velocity on Hirex Sr. and DNB and GPI CXRS in core. Interesting indications at the separatrix and SOL. Next repeat for probe participation.
Mar 14 2008 12:36:03:090PM	1080314010	Kenneth Marr	Fizzle
Mar 14 2008 12:52:29:480PM	1080314011	Kenneth Marr	re-fizzle
Mar 14 2008 01:48:40:447PM	1080314015	Kenneth Marr	Plasma. Showing similar effects as shot 9. Probes participated. Next shot: Repeat. Probes deeper.
Mar 14 2008 03:01:33:417PM	1080314021	Kenneth Marr	Plasma. Probes got sufficient signal. Next shot: Repeat shot. Move probes to USN time.
Mar 14 2008 04:39:32:743PM	1080314025	Kenneth Marr	Plasma. Cryopump off. Marfe in the lower divertor area affect flows in the USN configuration. Possibly interesting but not quite what we want. Probe measurements limited by marfe. Next shot: Repeat shot with cryo on.
Mar 14 2008 04:57:43:120PM	1080314029	Kenneth Marr	Plasma. Good shot. I believe we've hit the key points with the probes. Unfortunately we are almost out of time. We'll creep halfway into part B and reduce the IW gap. Probes timidly poking at it since we can't take a target and then a real one. Next shot: Reduce the inner gap by 3mm.
Mar 14 2008 05:19:20:243PM	1080314031	Kenneth Marr	Final fizzle of the day. Thanks to all.

Physics Operator Comments
Mar 14 2008 10:32:23:167AM	1080314001	Jim Irby	prepuff to 60 ms --- cryopump for 1st shot 800 kA, 5.4 T, 7e19/m^2, sweeping zcur 1 cm in 10 ms zcur: lsn to usn sweep at 0.8 s --- 10 mm in 10 ms zcur: usn to lsn sweep at 1.0 s --- 10 mm in 10 ms clearin: zxa=0.39, rxa=0.544 at 0.7 s clearin: back to standard reference at 1.0 s loaded no-power shot --- EF1 commutation bank faulted condition good thing --- I had a bad start-up loaded (4 T) EF1 commutation faulted last shot yesterday cell entry to check out bank ~20 min: Found bad cap in bank at easy to get to location. Replacing ~70 min: Cap replaced. Connections being double checked ~83 min: started no power shot
Mar 14 2008 10:37:31:167AM	1080314002	Jim Irby	imported seg 1 from 1080313031 into seg 1 prepuff from 20 to 60 ms loaded this will be a no power shot to test the cap bank had DNB plenty of prepuff gas --- no cryopump ef1 commutation bank charged okay will need one more no power shot at full bank voltage
Mar 14 2008 10:47:11:010AM	1080314003	Jim Irby	no power shot --- bank to full voltage test okay --- ready for plasma
Mar 14 2008 05:25:00:573PM	1080314004	Jim Irby	try for plasma --- total delay approx 2:00 jog at 0.7 s look okay plasma for 1.05 s, just at 2nd jog time --- ssep seems to have overshot badly injection at 0.98 s caused disruption, not the jog... density request was only 7e19/m^2. Should have loaded 8e19/m^2 need fast efit set to new jog times (.7 and 1. s)
Mar 14 2008 11:14:20:680AM	1080314005	Jim Irby	nl_04 request from 7 to 8 e19/m^2 fizzle --- guess cryopump doesn't help fizzles
Mar 14 2008 11:34:12:197AM	1080314006	Jim Irby	try again plasma for 1.05 s big overshoot in zcur/ssep
Mar 14 2008 11:52:56:307AM	1080314007	Jim Irby	nl_04 request from 8 to 8.5 e19/m^2 argon puff to 200 ms (from 300 to 500 ms) usn to lsn from 1.00 to 1.02 s --- sweep time increased from 10 to 20 ms clearin from -0.002 to -.004 from 0.700 to 1.0 s fizzle ---
Mar 14 2008 12:10:59:197PM	1080314008	Jim Irby	try again fizzle --- not good carbon after 0.01 s no RATIOMATIC data --- turned off
Mar 14 2008 12:23:09:917PM	1080314009	Jim Irby	prepuff from 60 to 50 ms plasma into rampdown
Mar 14 2008 12:30:49:790PM	1080314010	Jim Irby	slowed down usn to lsn again from 20 to 30 ms argon from 300 to 550 ms --- cryopump eats argon loaded Brian will try probe scans this shot fizzle???
Mar 14 2008 12:48:25:383PM	1080314011	Jim Irby	prepuff to 55 ms loaded fizzle
Mar 14 2008 01:04:30:917PM	1080314012	Jim Irby	NESOX gatevalve disabled DNB requested to be off for this shot basepressue before shot almost a factor of two better fizzle ---
Mar 14 2008 01:11:16:493PM	1080314013	Jim Irby	no nesox no dnb basepressure 6.8e-8 Torr no TF! PLC reset problem --- should be good for next shot
Mar 14 2008 01:22:53:790PM	1080314014	Jim Irby	no nesox no dnb basepressure 6.2e-8 Torr fizzle
Mar 14 2008 01:40:24:680PM	1080314015	Jim Irby	Br0 from 0.0 to -.0002T loaded no dnb no nesox prepuff from 55 to 65 ms loaded plasma into rampdown
Mar 14 2008 02:00:11:133PM	1080314016	Jim Irby	dnb back online fizzle prefill pressure nearly a factor of two high compared to shot 15 breakdown late
Mar 14 2008 02:06:25:027PM	1080314017	Jim Irby	try again. basepressure is high --- 2.7e-7 Torr fizzle prefill very high again --- close to no cryopump value as seen during no power tests earlier today Brian noted that the last regen indicated very little gas is being pumped Investigating
Mar 14 2008 02:18:12:650PM	1080314019	Jim Irby	try again with the cryopump running fizzle pressure much better but still have thrashing around
Mar 14 2008 02:39:10:150PM	1080314019	Jim Irby	prepuff to 70 ms loaded cryopump looks good fizzle
Mar 14 2008 02:50:47:853PM	1080314020	Jim Irby	prepuff to 60 ms to bracket fizzle thrashing back, but breakdown time better
Mar 14 2008 02:58:38:103PM	1080314021	Jim Irby	prefill to 65 ms plasma into rampdown --- had a small cii spike/thrash fill pressure good overlay of shot 15; breakdown a little later current rise a little slower
Mar 14 2008 03:19:46:103PM	1080314022	Jim Irby	argon puff to 350 ms from 250 ms (from 300 to 650 ms) loaded fizzle --- no ratiomatic, so I don't know the fill pressure mks indicated high pressure
Mar 14 2008 03:33:27:620PM	1080314023	Jim Irby	no change again cryopump seems to be pumping ---- 7.9e-8 Torr fizzle --- pressure overlay on shot 21
Mar 14 2008 03:39:29:980PM	1080314024	Jim Irby	no cryopump prefill to 20 ms fizzle --- pressure low
Mar 14 2008 03:57:47:680PM	1080314025	Jim Irby	prefill to 23 ms loaded if this doesn't work we will change rcur from 1000 to 1800. plasma into rampdown -- 1.65 s --- no density control
Mar 14 2008 04:07:48:370PM	1080314026	Jim Irby	cryopump back on prefill to 65 ms fizzle --- pressure slightly high compared to 21
Mar 14 2008 04:21:54:930PM	1080314027	Jim Irby	no changes no plasma dnb will be off for next shot
Mar 14 2008 04:29:05:603PM	1080314028	Jim Irby	dnb off --- probably only useful for next shot fizzle
Mar 14 2008 04:48:29:590PM	1080314029	Jim Irby	prefill to 56 ms rcur from 1000 to 1800 dnb off plasma into rampdown
Mar 14 2008 05:06:39:947PM	1080314030	Jim Irby	rcur in seg 2 decreased by 1.5 mm clearin in seg 2 decreased by 3.0 mm fizzle --- pressure high (cryopump?)
Mar 14 2008 05:12:04:587PM	1080314031	Jim Irby	prefill to 52 ms fizzle --- go home

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:04:39:880AM	Plasma	Bad	EF1L cap bank did ncharge
2	10:32:12:430AM	Test	Ok	EF1L cap bank test
3	10:41:51:040AM	Test	Ok	EF1L cap bank test
4	10:52:52:527AM	Plasma	Ok
5	11:08:15:040AM	Plasma	Ok
6	11:20:59:353AM	Plasma	Ok
7	11:49:04:260AM	Plasma	Ok
8	12:01:36:713PM	Plasma	Ok
9	12:14:17:650PM	Plasma	Ok
10	12:28:50:447PM	Plasma	Ok
11	12:41:13:870PM	Plasma	Ok
12	12:53:32:057PM	Plasma	Ok
13	01:05:55:917PM	Plasma	Bad	TF did not fire, PLC trigger may not have occured
14	01:18:33:837PM	Plasma	Ok
15	01:34:03:883PM	Plasma	Ok
16	01:46:57:527PM	Plasma	Ok
17	02:00:10:680PM	Plasma	Ok
18	02:12:42:073PM	Plasma	Ok
19	02:25:10:010PM	Plasma	Ok
20	02:37:40:820PM	Plasma	Ok
21	02:51:22:260PM	Plasma	Ok
22	03:04:03:650PM	Plasma	Ok
23	03:18:42:180PM	Plasma	Ok
24	03:32:38:493PM	Plasma	Ok
25	03:45:09:230PM	Plasma	Ok
26	03:59:42:230PM	Plasma	Ok
27	04:14:20:963PM	Plasma	Ok
28	04:27:01:963PM	Plasma	Ok
29	04:41:12:430PM	Plasma	Ok
30	04:57:35:180PM	Plasma	Ok
31	05:10:00:667PM	Plasma	Ok

System Availability

Mar 14 2008 09:04:31:693AM

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 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 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. 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 Starting on 1080227 All low freq. channels have been connected 50,60,75,88, 88l,88u and 110GHz. The variable freq. channel as well as the 140 have been connected and are being tested. (On 1080306, 75GHz has been disconnected because the rcvr mixer has been obsolete for the last run days) Mar 06 2008 09:11AM (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 12 polychromators (#1~8,9,11,13,15), 1 laser. Density is calibrated for YAG2 on polychromator 1~8. YAG1 is not calibrated yet. Density calibration hasn't been performed on ploychromator 9~16. Feb 21 2008 11:19AM (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

Mar 14 2008 10:32:06:383AM

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 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 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. 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 Starting on 1080227 All low freq. channels have been connected 50,60,75,88, 88l,88u and 110GHz. The variable freq. channel as well as the 140 have been connected and are being tested. (On 1080306, 75GHz has been disconnected because the rcvr mixer has been obsolete for the last run days) Mar 06 2008 09:11AM (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 12 polychromators (#1~8,9,11,13,15), 1 laser. Density is calibrated for YAG1 based on ECE cutoff data taken on Mar11. YAG2 is offline. Mar 14 2008 09:59AM (jwhughes) 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

Mar 14 2008 11:20:54:167AM

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 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 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 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. 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 Starting on 1080227 All low freq. channels have been connected 50,60,75,88, 88l,88u and 110GHz. The variable freq. channel as well as the 140 have been connected and are being tested. (On 1080306, 75GHz has been disconnected because the rcvr mixer has been obsolete for the last run days) Mar 06 2008 09:11AM (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 12 polychromators (#1~8,9,11,13,15), 1 laser. Density is calibrated for YAG1 based on ECE cutoff data taken on Mar11. YAG2 is offline. Mar 14 2008 09:59AM (jwhughes) 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, but channels have been dying...stay tuned. Mar 14 2008 11:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke