Miniproposals

Miniproposal: 551 Date Filed: 4/17/2008 Title: Penetration of Accessible LH Waves First Author: Greg Wallace Session Leader: Greg Wallace (shots 1-5)

Engineering Operator Run Comment

Run MP551 "Penetration of Accessible LH Waves." Session Leader: G. Wal

Session Leader Plans

Entered: May 9 2008 11:56:23:207AM

Author: Greg Wallace

Session Leader plan for 1080512 (am) Session Leader: G. Wallace Physics Operator: E. Marmar This will be a run for MP551, "Penetration of Accessible LH Waves." This will complete the scans not finished on 1080429. LH Setup: Launcher 1.0mm behind limiter, 75 and 90 degree current-drive phasing. 700kW net power, LH on from 0.7 to 1.2s. Reference shot: 1080429003 Shot plan: 1. Bring up LH power to 700kW at 75 degree phasing with nl_04 steady at 3e19 (or as low as possible), 5.4T,800kA. (2 shots) 2. Scan density from 3e19 (or as low as possible without locked modes) to 6e19 nl_04 between 0.7 and 1.2 seconds at 5.4 T, 1.1MA, 75 degrees. Cryopump and/or inner wall puffing may be required for density control. Repeat at 90 degrees. (2 shots) 3. Scan density from 5e19 to 1e20 nl_04 between 0.7 and 1.2 seconds at 5.4 T, 800kA, 75 degrees. Cryopump and/or inner wall puffing may be required for density control. Repeat at 90 degrees. (2 shots) 4. Repeat 3 at 5.4T, 1.1MA. (2 shots) 5. Repeat 3 at 6.0T, 800kA. (2 shots) Total of 10 shots. If time allows: 6. Repeat 2 at 5.4T, 500kA. (2 shots) 7. Repeat 2 at 5.0T, 800kA. (2 shots)

Physics Operators Plans

Entered: May 12 2008 11:42:18:693AM

Author: Earl Marmar

Engineering Setup for Monday 12 May, 2008 ----------------- Physop: E. Marmar Session Leader: G. Wallace MP551 Penetration of Accessible LH Waves Run begins at 12:00 and ends at 17:00 Power systems as on: 1080429003 Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled Gas setup: Fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) fill NINJA with 10 psi D2 DISABLED Enable gatevalves and shutters: ECE, VUV, DNB, Z-bolo Torvac gatevalve toggle (yes/no): NO Boronization(yes/no): no Pre-run ECDC (yes/no): YES (~2 hours, stopping at least 1 hour before first plasma attempt) ICRF(yes/no): NO LH(yes/no): YES DNB(yes/no): not available Cryopump (yes/no): YES, starting with first plasma shot, if available Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s

Session Leader Summaries

Entered: May 13 2008 08:14:19:537AM

Author: Greg Wallace

Session Leader summary for 1080512: No results from today. One dirty shot mid afternoon, then run was scrubbed after NSTAR gas main broke.

Physics Operator Summaries

Entered: May 12 2008 04:39:06:737PM

Author: Earl Marmar

Today's run had several issues which prevented us from making progress on the MP. The day started with ~1 hour of delays for computer problems. After 2 successful OH2 tests, taken because of some OH2 issues from 1080502, we had another computer delay, and then the only plasma shot of the day (shot 5). The plasma shot was very resistive, and disrupted at .3 seconds. After that, construction crews broke a high pressure gas main on Albany street, and NW21 was evacuated for about an hour. By 3:30, we considered continuing the run, but instead decided to stop so that people could work on an ICRF control problem (high voltage for transmitter 3, not directly related to today's run). J-port is needed for tomorrow's planned run. Summary: No power: 2 OH tests: 2 plasma: 1 total cycles: 5

Session Leader Comments

Physics Operator Comments
May 12 2008 12:05:21:370PM	1080512001	Earl Marmar	Starting with an OH2 test (PLC control) critical failure during init no power
May 12 2008 12:58:09:940PM	1080512002	Earl Marmar	try for another OH2 test (PLC control) still having computer problems no power
May 12 2008 01:03:57:680PM	1080512003	Earl Marmar	once more with feeling OH2 test shot looks ok
May 12 2008 01:34:08:670PM	1080512004	Earl Marmar	reverse current OH2 PLC test looks ok
May 12 2008 04:40:22:817PM	1080512005	Earl Marmar	try for plasma load from 1080429003 turn off dpcs_ftae2 prefill puff is 54 msec (cryopump should be at liquid He temp) 800 kA USN plasma startup looks good looks very resistive, disrupt at .3 seconds
May 12 2008 04:44:59:693PM	1080512005	Earl Marmar	Following shot 5, there was a long delay to investigate cooling problems with a TF leg. Around 2:15 pm, construction crews working on Albany St outside the loading dock at 190 Albany hit a gas main and NW21 was evacuated. We were allowed back into the building around 3:15 pm.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	12:00:02:350PM	Test	Bad	No power shot, camac failure
2	12:20:53:490PM	Test	Bad	No power, Camac failure
3	12:57:08:127PM	Test	Ok	OH2U-L Forward PLC Test
4	01:10:10:327PM	Test	Ok	OH2U-L Reverse PLC Test
5	01:51:36:247PM	Plasma	Ok

System Availability

May 12 2008 12:00:02:130PM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD yes Fully operational Mar 28 2007 09:19PM (sears) Joe Snipes Active MHD Antenna sears,snipes BES yes vertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm. Feb 06 2007 10:00AM (bravenec) Ron Bravenec Beam Emission Spectroscopy bravenec,rowan Bolometers yes Diode 2pi working fine, foil 2pi being low-pass filtered to remove noise. Outboard miidplane AXUV has a grounded channel which is disrupting the whole array OFFLINE for now. Midplane foils working fine, but need to fill tree with calibrations. 2D AXUV arrays are being digitized but need further debugging and calibration. Mar 14 2008 11:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes System Operational Apr 29 2008 03:29PM (irby) Jim Irby Boronization dekow,irby CNPA yes Single channel CNPA available as of 12/1707 Dec 17 2007 05:48PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor yes Cryopump is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersect the beam at the major_R_range=[74.2:86.3]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[67.8:91.0]cm. Spatial resolution: 1.22 cm. Nov 27 2007 10:21AM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Nov 26 2007 04:23PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes optics repaired, camera re-installed, and view has been re-calibrated Nov 27 2007 09:54AM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no   Nov 20 2007 10:47PM (granetz) Robert Granetz Gas Jet granetz,whyte Divertor IR no   Mar 06 2007 10:50AM  Glen Wurden Divertor IR Digital Video gwurden,terry Divertor IR Spectroscopy no   Mar 06 2007 10:51AM  Glen Wurden Divertor IR Spectroscopy gwurden,terry DNB no   Nov 20 2007 10:47PM (granetz) Robert Granetz Diagnostic Neutral Beam beals,granetz FRC-ECE yes 16 Channels now working - low freq. side - outer Rmids Feb 19 2008 09:56AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauge is operational and calibrated against G-side MKS on shot#1071127002 Nov 27 2007 01:25PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland GPC yes All 9 channels operational as of new year. Jan 03 2008 09:31AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels operational. Jan 02 2008 12:22PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI no Neither the Xpt-view nor the midplane-view camera is operational. Nov 26 2007 04:25PM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes Should be operational for the FY08 campaign Nov 27 2007 09:54AM (marmar) Earl Marmar H/D Ratio marmar Hirex Jr yes   Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr no Be Window has a leak and so the gate valve is closed Nov 23 2007 12:50PM (ince) John Rice High Resolution X-Ray ince,rice HXR yes Something might be wrong with channel 26; all others working fine. Mar 23 2007 10:43AM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt ICRF D-Antenna yes available (quarter-wave transformer for pre-matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes available (with FFT for automatical matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes normally in [0,pi,pi,0] phase for heating. current drive phase available if requested. Dec 11 2007 09:03AM (ylin) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid yes Body I Fault Circuits Repaired and tested. High power tests completed Dec 05 2007 06:40PM (dterry) Ron Parker Lower Hybrid dterry,parker LPI yes 1/9/08 Jan 09 2008 03:23PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane working fine, emissivity profiles being stored in tree, but still need to apply in-vessel calibrations to data. WB1-LY being digitized, but not processed in tree. Dec 09 2007 06:53PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson no Problems with detector. No quantitative line brightnesses possible. Qualitative tasks like impurity identification possible. Feb 15 2008 02:07PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational Apr 29 2008 02:30PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes E-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box. Mar 20 2007 06:42PM (g) Brian LaBombard Baratron pressure gauges labombard MLP no Initial tests on the A-port scanning probe went well. We need to take care of some control glitches that caused some component failures. May 30 2007 08:01PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no We are basically awaiting the DNB & its new aperture. MSE itself is OK. Feb 21 2008 08:51AM (jinseok) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Voltage is on for the He3 bank. Voltage will be turned on for the global system at the first plasma attempts. Nov 26 2007 08:31AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes calibration unchanged from 2007 campaign Dec 04 2007 08:56PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. Nov 26 2007 04:26PM (terry) Brian LaBombard NINJA gas puff labombard,terry PCI yes working Feb 29 2008 07:00PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges yes All gauges except B_DivL are operating Nov 27 2007 01:31PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Nov 26 2007 04:27PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby Probe Array - ISD yes Operational Nov 27 2007 01:40PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational Nov 27 2007 01:40PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes System is fully connected except for the 75GHz channel. System was connected on 1080422. Apr 22 2008 08:26AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational, but needs to be checked with plasma. Nov 27 2007 01:45PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes FSP is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A- and K-port WASP electrodes have been replaced/tested. Nov 27 2007 01:44PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick TCI yes Operational Apr 29 2008 03:33PM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes One laser operational, 12 spatial channels Apr 11 2008 10:36AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes System is working with 3 out of 4 spectral channels and should be believable for Te>50eV, ne>3e19. Density is calibrated from both Raman scattering in D2 (3/2/08) and from edge ECE cutoffs in high-density H-modes (1080228014). Apr 11 2008 10:36AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf XTOMO yes system operational, but channels have been dying...stay tuned. Mar 14 2008 11:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke