Miniproposals

Miniproposal: 632 Date Filed: 12/8/2010 Title: q Dependence of Rotation Reversal Density First Author: John Rice Session Leader: John Rice (shots 1-25)

Engineering Operator Run Comment

MP632 - Rotation Reversal, PO: E. Marmar, SL: J. Rice

Session Leader Plans

Entered: Jan 24 2011 03:33:04:890PM

Author: John Rice

MP 632 continuation of 1110105 1 psi Ar B-side lower enabled need cryo at some point no ICRF no LH need Thomson, Hirex-Sr, PCI, CXRS/DNB first shot, locked mode. load 1110105018

Physics Operators Plans

Entered: Jan 24 2011 03:42:48:560PM

Author: Earl Marmar

PO: E. Marmar, SL: J. Rice MP632 - Rotation Reversal ------------------ Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1110105018 (locked mode) 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) leave NINJA as is DISABLED Enable the following gate valves and shutters, assuming no vacuum problems: ECE, VUV, Z-bolo, HIREX-Sr, B-spectrometer GV Torvac gatevalve toggle (yes/no): no Boronization: no Overnight ECDC: yes ICRF: no LH: no Cryopump: yes DNB: yes overnight ECDC Gas Setup Gas: D2, 2.0e-4 Torr sweep: 44/45/103 cm scan: 20/120 s

Session Leader Summaries

Entered: Jan 25 2011 03:56:03:830PM

Author: John Rice

there were several good reversals, 004, 005, 006, 012, 020, 021 and 022. 023 was a strange one, but there was a data system problem and the run was aborted. reversals at 3 and 7 T were obtained. we weren't able to get to the PCI masking or the density hysteresis. good reflectometer data were obtained.

Physics Operator Summaries

Entered: Jan 28 2011 10:03:04:560AM

Author: Earl Marmar

The machine ran reasonably well today, with no fizzles, 3 early disruptions, and 1 power supply dud (EF1U early commutation). We had a short delay after shot 10 (OH2 fault after the shot). Shot 13 was 7 tesla, 1.4 MA (the only shot of the day at this field). It disrupted during rampdown, after one of the OH supplies faulted. Around 3:00 pm, after shot 23, a server disk died, and the run ended early. After the server was repaired (shortly before 5:00 pm), two data system cycles were run to test the repairs (cycles 24 and 25). Scorecard: 22 plasmas 1 power supply dud 23 plasma attempts

Session Leader Comments
Jan 25 2011 09:09:38:543AM	1110125001	John Rice	disrupted early
Jan 25 2011 09:27:14:983AM	1110125002	John Rice	locked mode at 0.62 s
Jan 25 2011 09:38:46:387AM	1110125003	John Rice	locked mode
Jan 25 2011 09:58:30:460AM	1110125004	John Rice	good co- to counter reversal, =0.81 .75 MA, 5.1 T
Jan 25 2011 10:07:44:903AM	1110125005	John Rice	good co- to counter reversal, =0.80, 1.04s .75 MA, 5.1 T
Jan 25 2011 10:21:59:730AM	1110125006	John Rice	good co- to counter reversal, =0.83, 1.12s .75 MA, 5.1 T
Jan 25 2011 10:31:08:937AM	1110125007	John Rice	7 T attempt. early disruption
Jan 25 2011 10:46:19:800AM	1110125008	John Rice	7 T disrupted
Jan 25 2011 11:04:35:097AM	1110125009	John Rice	7 T reversal?
Jan 25 2011 11:18:56:277AM	1110125010	John Rice	7 T no reversal?
Jan 25 2011 12:02:13:753PM	1110125011	John Rice	7 T no reversal? too high density?
Jan 25 2011 12:31:02:140PM	1110125012	John Rice	7.1 T 0.72 MA, reversal at 0.994 S, =0.65
Jan 25 2011 12:51:27:177PM	1110125013	John Rice	7.1 T 1.4 MA, reversal? at 0.97 s, =1.35
Jan 25 2011 01:17:58:607PM	1110125015	John Rice	3.2 T 0.48 MA disrupted too much Ar? reversal?
Jan 25 2011 01:34:19:983PM	1110125016	John Rice	3.1 T 0.48 MA no reversal, too high ne?
Jan 25 2011 01:45:04:423PM	1110125017	John Rice	3.1 T 0.48 MA no reversal, too low ne?
Jan 25 2011 02:08:21:547PM	1110125018	John Rice	3.1 T 0.48 MA no plasma
Jan 25 2011 02:20:00:207PM	1110125019	John Rice	3.1 T 0.48 MA late reversal, 1.51 s, =0.67
Jan 25 2011 02:26:39:597PM	1110125020	John Rice	3.1 T 0.48 MA great reversal at 1.216 s, =0.71
Jan 25 2011 02:50:38:923PM	1110125021	John Rice	5.1 T 0.75 MA reversal at 1.026 s, =0.82
Jan 25 2011 02:50:54:947PM	1110125022	John Rice	5.1 T 0.75 MA reversal at 0.817 s, =0.83
Jan 25 2011 03:52:29:700PM	1110125023	John Rice	5.1 T 0.75 MA reversal???

Physics Operator Comments
Jan 25 2011 09:16:53:880AM	1110125001	Earl Marmar	load 1110105018, locked mode shot (segment 4) import segment 1 from 1110121031 into segment 1 plasma startup looks ok disrupt at 0.24 s, preceded by large increase in Prad and density
Jan 25 2011 09:25:32:993AM	1110125002	Earl Marmar	no dpcs changes plasma locked mode starting around 0.65 s disruption at 1.4 s
Jan 25 2011 09:40:00:530AM	1110125003	Earl Marmar	no dpcs changes plasma locked mode from ~0.64 s disrupt in rampdown
Jan 25 2011 10:27:27:607AM	1110125004	Earl Marmar	load from 1110105020, upper null, 5 T (segment 3 is active) import segment 1 from 1110125003 into segment 1 plasma, full length bounce on startup
Jan 25 2011 10:07:14:823AM	1110125005	Earl Marmar	EF4 current to -1290 A at t=0 (from -1303 A) tweak early nl04 target plasma, full length startup bounce is smaller
Jan 25 2011 10:23:59:383AM	1110125006	Earl Marmar	increase argon puff, now 300 ms (from 200 ms) still starting at 0.3 s plasma, full length
Jan 25 2011 10:33:47:240AM	1110125007	Earl Marmar	load from 1110105033, 7 Tesla (segment 3 is active) import segment 1 from 1110125006 into segment 1 plasma, early disrupt deja vu all over again (a la shot 1)
Jan 25 2011 10:53:27:270AM	1110125008	Earl Marmar	no dpcs changes plasma, early disrupt looks like 7
Jan 25 2011 11:02:17:357AM	1110125009	Earl Marmar	delay argon puff by 100 ms (now from .4 to .6 s) tweak early nl_04 target (up) plasma disrupt at 1.46 s (Mo LBO?)
Jan 25 2011 11:20:33:283AM	1110125010	Earl Marmar	reduce argon puff to 100 msec (from 200 msec), now starting at 0.5 s plasma, full length funny density rise just after Mo LBO injection
Jan 25 2011 11:31:10:973AM	1110125010	Earl Marmar	OH2 fault after the shot short delay while engineers investigate/reset they will also check TF fuses during the power room access
Jan 25 2011 12:01:35:153PM	1110125011	Earl Marmar	reduce nl04 ramp, programmed to reach 6.5e19 at 1.4 s (was 7.5e19) plasma, full length still wonky after the Mo LBO
Jan 25 2011 12:01:02:123PM	1110125012	Earl Marmar	lower nl04 target (3.5e19 ramping to 5e19)
Jan 25 2011 12:57:15:790PM	1110125013	Earl Marmar	Ip to 1.4 MA EF4 preprog to 4 kA (segment 3) nl04 target ramping to 1.0 e20 plasma, disrupt in rampdown (~1 MA)
Jan 25 2011 01:09:45:607PM	1110125014	Earl Marmar	locked mode shot import segment 4 from 1110125003 into segment 4 turn off segment 3, turn on segment 4 plasma, disrupt 1.55 s locked mode starting ~0.65 s
Jan 25 2011 01:17:16:300PM	1110125015	Earl Marmar	import segment 3 from 1110125006 into segment 3 turn off segment 4 turn on segment 3 Ip to .48 MA reduce EF4 target in segment 3 TF current ramping down to 82 kA (3 tesla) plasma, disrupt 0.7 s
Jan 25 2011 01:40:02:107PM	1110125016	Earl Marmar	argon puff to 150 ms (from 300), now starting at 0.45 s nl_04 target reduced 10% through entire ramp plasma, full length
Jan 25 2011 01:49:28:447PM	1110125017	Earl Marmar	nl_04 target reduced, ramping from 3.0e19 to 4.5e19 plasma, full length
Jan 25 2011 01:56:30:367PM	1110125018	Earl Marmar	nl_04 target ramping from 3.0e19 to 5.0e19 dud, EF1U early commutation
Jan 25 2011 02:11:42:137PM	1110125019	Earl Marmar	no additional dpcs changes plasma, full length
Jan 25 2011 02:27:35:290PM	1110125020	Earl Marmar	nl_04 target ramping from 3.0e19 to 6.0e19 plasma, full length
Jan 25 2011 02:41:45:830PM	1110125021	Earl Marmar	import segment 3 from 1110125006 into segment 3 (5 T, SNU) nl_04 target to 0 at 1.201 s plasma, full length
Jan 25 2011 02:53:02:237PM	1110125022	Earl Marmar	small increase in nl_4 target through 1.2 s plasma, disrupts halfway through ramp-down early injection, Ip lurched down, then recovered
Jan 25 2011 03:14:00:700PM	1110125023	Earl Marmar	minor tweak to nl_04 programming plasma, disrupt in rampdown
Jan 25 2011 03:55:54:450PM	1110125023	Earl Marmar	after this shot, encountered a problem with computer access to data delay while Josh works on the problem Josh concludes he can't finish repairs before 5:00 pm, so the run is over

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:07:29:787AM	Plasma	Ok
2	09:20:13:723AM	Plasma	Ok
3	09:32:48:017AM	Plasma	Ok
4	09:47:30:187AM	Plasma	Ok
5	10:00:03:007AM	Plasma	Ok
6	10:15:25:780AM	Plasma	Ok
7	10:29:03:960AM	Plasma	Ok
8	10:41:32:160AM	Plasma	Ok
9	10:55:56:213AM	Plasma	Ok
10	11:13:09:963AM	Plasma	Ok
11	11:52:27:907AM	Plasma	Ok
12	12:15:41:740PM	Plasma	Ok
13	12:36:06:620PM	Plasma	Ok
14	12:59:51:503PM	Plasma	Ok
15	01:13:05:933PM	Plasma	Ok
16	01:27:35:247PM	Plasma	Ok
17	01:40:14:730PM	Plasma	Ok
18	01:52:59:477PM	Plasma	Ok
19	02:06:01:863PM	Plasma	Ok
20	02:18:39:553PM	Plasma	Ok
21	02:31:25:250PM	Plasma	Ok
22	02:44:12:333PM	Plasma	Ok
23	02:57:03:973PM	Plasma	Ok
24	05:07:18:550PM	Test	Ok
25	05:31:01:857PM	Test	Ok

System Availability

Jan 25 2011 09:07:09:677AM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes BES yes BES system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes 2pi (D+F) working. All midplane and off-midplane diode arrays working except WB1AX. Midplane foils calibrated and PRAD_MAIN is being filled. Divertor/Ledge foils not yet ready. Jul 15 2010 08:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes   Nov 16 2010 02:36PM (dekow) Jim Irby Boronization dekow,irby CNPA yes Multiple channel CNPA available Oct 21 2010 07:11PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no Shut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged. Apr 06 2010 10:51AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes Wide-view CXRS system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes system is aligned; new calibrations (relative brightness and position) not yet implemented Jun 29 2010 10:27AM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (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 in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung ECDC yes Operational Jun 26 2010 09:28PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE yes All channels working and calibrated. Oct 27 2010 03:41PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauges are operational. Jun 28 2010 08:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no Plugs for Power Supply and Controls have been unplugged and red tagged making system safe for In-Vessel Access. Apr 05 2010 11:18AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes operating normally Jun 29 2010 10:26AM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Jun 26 2010 11:19PM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36PM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr yes System installed and aligned. Inverted Profiles for Ti are available upon request. Vtor profiles still under revision. Dec 17 2010 09:25AM (ypodpaly) John Rice High Resolution X-Ray ince,rice,ypodpaly HXR yes 32 Channels operational Oct 23 2010 01:41PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna yes system checked out ok on 11006728. Jun 28 2010 04:57PM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes system checked out ok on 1100628 Jun 28 2010 04:57PM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes system checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin) Steve Wukitch J-port antenna wukitch,ylin Laser Blow-Off yes operational and tested Jul 20 2010 04:42PM (g) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid yes LH working. New directional couplers installed at input to each klystron. Oct 21 2010 11:42AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer yes 50GHz: up-, 60 GHz up- and down- Oct 21 2010 11:31AM (sgbaek) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek Lower Hybrid SOL reflectometer yes profiles and fluctuations both working. If requested, please request LH launcher to be moved in. Jan 18 2011 03:07PM (cornwall) Cornwall Lau Lower Hybrid SOL reflectometer cornwall,wukitch,ylin LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha no WB4LY and LLY working but not during ICRF. WB1LY not attached due to pickup problems. LYMID attached but have profile problems. Aug 24 2010 09:17AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson yes Spectra being collected and tree filled. Wavelength scan is broken so fixed on the Mo XXXI and XXXII lines. Jul 15 2010 08:28AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes Gauges are operational Jun 28 2010 08:02PM (labombard) Brian LaBombard Baratron pressure gauges labombard MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes All systems are on and functional Jun 29 2010 12:56PM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes PMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03 Jun 26 2010 09:21PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA no Capillaries tested in-vessel. Jun 28 2010 08:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry PCI yes Operational. AM (2 * 39.51) MHz. Dec 13 2010 05:29PM (ntsujii) Miklos Porkolab Phase Contrast Imaging ennever,ntsujii,porkolab Penning Gauges no High voltage power supplies are turned off, waiting for work at A-port horizontal to be finished. Jun 28 2010 08:07PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (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 Power - Alternator Air Switch yes   Jun 26 2010 11:19PM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes   Jun 26 2010 11:19PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Jun 26 2010 11:19PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Jun 26 2010 11:20PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational. Jun 28 2010 08:03PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational. Jun 28 2010 08:03PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes F and J outer divertor probes are operational. Jun 28 2010 08:04PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes Operational, except probe#13 Jun 28 2010 08:04PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes As of 1101123, the 60, 88u, 88l, 140 and variable set at 115GHz are operational. The 50, 75 and 112 are nonoperational. On 1101123, the noise band at ~200kHz is again seen on the 88u and 88l channels. Nov 23 2010 09:30AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational. New Langmuir-Mach probe head installed. Jun 28 2010 08:05PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. Jun 28 2010 08:05PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes Both A and K units are operational. Coil polarity needs to be checked. Jun 28 2010 08:06PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Sparker yes HV supply on, cable run to sparker at k-hor Jun 23 2010 02:41PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station yes SSS installed and leak tested. Oct 21 2010 11:31AM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes No new CO2 detector, so still missing edge channels Jun 23 2010 02:40PM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with 2 lasers Oct 22 2010 01:06PM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes Operational Jul 14 2010 11:54AM (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 XEUS yes Raw spectra stored but not line brightness time histories are going into the tree yet. Jan 20 2011 10:45AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer mlreinke XTOMO yes Core system working. Edge system waiting for H-modes. Jul 01 2010 11:55AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke