Miniproposals

Engineering Operator Run Comment

Plasma Start up SL-? PO Marmar EO Pierson

Session Leader Plans

Physics Operators Plans

Entered: Jun 24 2009 05:06:45:247PM

Author: Earl Marmar

Run 1090625 --- Plasma Startup Plan: Continue start-up/clean-up plasmas. ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1090624033 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, Z-bolo Torvac gatevalve toggle (yes/no): no Boronization(yes/no): no Overnight ECDC (yes/no): yes ICRF(yes/no): no LH(yes/no): no DNB(yes/no): no Cryopump (yes/no): no Vessel temperature: 60/60/60 overnight ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s We will need to have in-between shot ECDC available.

Session Leader Summaries

Physics Operator Summaries

Entered: Jun 25 2009 05:50:51:607PM

Author: Earl Marmar

MP 298A plasma startup PO: E. Marmar EO: W. Byford, W. Parkin, S. Pierson We managed 3 plasmas (shots 1, 8 and 21) with reasonable Ip. The third lasted the longest (400 msec), and had sawteeth, but was clearly quite dirty and resistive. Various field and gas tweaks were tried, and we had 3 sessions of ECDC during the run (10 minutes prior to shot 2, 30 minutes prior to shot 9 and 20 minutes prior to shot 25). It is not clear that ECDC helped. For future between-shot ECDC during startup, I suggest trying a change in the dwell to move it off the inner wall, perhaps R=70 cm or larger. Following each plasma, the RGA showed increases on all the usual masses (hydrocarbons/water, CO, CO2, BF3), with some improvement from one plasma to the next. scorecard: 3 plasmas 29 fizzles 1 power supply dud 33 total data cycles

Session Leader Comments

Physics Operator Comments
Jun 25 2009 09:18:05:037AM	1090625001	Earl Marmar	load from 1090624033 prefill puff (PG4) is 24 msec plasma 225 msec, almost got to 700 kA
Jun 25 2009 09:22:09:757AM	1090625001	Earl Marmar	problem with EF1L supply after the shot we will have a delay start ecdc
Jun 25 2009 10:17:35:590AM	1090625002	Earl Marmar	ECDC for 10 minutes prior to this shot prefill puff to 19 msec Ip flattop program to 600 kA pressure at transition to pulse = 1.5e-6 fizzle, no obvious current rise breakdown time looks ok
Jun 25 2009 10:03:04:133AM	1090625003	Earl Marmar	no dpcs changes IGT pressure at transition to pulse = 1.0e-6 fizzle a few more kA than on shot 2, and the z-meter starts to burn out before it goes zooming up
Jun 25 2009 10:04:25:553AM	1090625004	Earl Marmar	prefill puff to 17 msec
Jun 25 2009 10:14:47:777AM	1090625004	Earl Marmar	prefill puff to 17 msec IGT = 7.8e-7 at transition to pulse fizzle, got to 40 kA, initial Ip ramp similar to shot 1
Jun 25 2009 10:28:00:517AM	1090625005	Earl Marmar	no pcs changes IGT = 6.6e-7 at transition to pulse fizzle, similar current rise to shot 4 looks like it's bouncing to the outside at around 20 msec
Jun 25 2009 10:41:14:913AM	1090625006	Earl Marmar	RCUR offset to 3000 (from 2000) prefill puff to 20 msec IGT = 5.8e-7 at transition to pulse fizzle, dies earlier, very little current Bz rose faster, squashed it to the inner wall
Jun 25 2009 10:53:42:183AM	1090625007	Earl Marmar	RCUR offset to 2500 (from 3000) prefill puff to 18 msec IGT = 4.9e-7 at transition to pulse fizzle, not much current rise
Jun 25 2009 11:15:42:800AM	1090625008	Earl Marmar	RCUR offset to 2000 (from 2500) BR_0 offset to .0015 (from .001) IGT = 4.9e-7 at transition to pulse plasma 600 kA, disrupt at 215 msec
Jun 25 2009 11:48:30:547AM	1090625009	Earl Marmar	ECDC for 30 minutes before the shot reduce PG3 puff in segment 1 IGT = 1.3e-6 at transition to pulse fizzle not much current, but a little better than shots 2 and 3
Jun 25 2009 12:01:54:067PM	1090625010	Earl Marmar	no DPCS changes IGT = 7.8 e-7 at transition to pulse fizzle slightly more current than on shot 9, z-meter starts to burn out and then shoots up BR_0 is creeping up
Jun 25 2009 12:13:27:400PM	1090625011	Earl Marmar	no DPCS changes IGT = 6.0e-7 at transition to pulse fizzle got to 50 kA current rise slower than on shot 8
Jun 25 2009 12:47:22:617PM	1090625012	Earl Marmar	no DPCS changes IGT = 5.2e-7 at transition to pulse fizzle much less current than on shot 11
Jun 25 2009 12:47:51:743PM	1090625013	Earl Marmar	no DPCS changes IGT = 4.5e-7 at transition to pulse fizzle, similar to shot 12
Jun 25 2009 12:50:04:337PM	1090625014	Earl Marmar	no DPCS changes IGT = 3.9e-7 at transition to pulse fizzle much like shot 13
Jun 25 2009 01:03:40:827PM	1090625015	Earl Marmar	no DPCS changes IGT = 3.4e-7 at transition to pulse fizzle no progress
Jun 25 2009 01:35:48:557PM	1090625016	Earl Marmar	prefill puff to 21 msec IGT = 3.2 e-7 at transition to pulse fizzle
Jun 25 2009 01:36:30:557PM	1090625017	Earl Marmar	no DPCS changes IGT = 3.0e-7 at transition to pulse fizzle
Jun 25 2009 01:44:42:217PM	1090625018	Earl Marmar	EF4 20 A more negative before t=0, now -1270 A IGT = 2.8 e-7 at transition to pulse fizzle, got to about 40 kA then dies (bouncing on the outboard?)
Jun 25 2009 01:56:01:050PM	1090625019	Earl Marmar	prefill puff to 23 msec IGT = 2.8 e-7 at transition to pulse fizzle similar to 18, 40 kA and then bounces (out?)
Jun 25 2009 02:10:54:350PM	1090625020	Earl Marmar	RCUR offset to 2500 IGT = 2.7 e-7 at transition to pulse fizzle nearly made it, dies at 50 kA, still apparently bumping on the outside current rise is faster than shot 1, slightly faster than shot 8
Jun 25 2009 02:29:47:430PM	1090625021	Earl Marmar	RCUR offset to 3000 IGT = 2.6 e-7 at transition to pulse plasma disrupts at 400 msec had sawteeth temperature is falling rapidly after 300 msec
Jun 25 2009 02:39:15:303PM	1090625022	Earl Marmar	RCUR offset to 0 (from 3000) prefill puff to 16 msec IGT = 6.9 e-7 at transition to pulse fizzle not much current
Jun 25 2009 02:49:50:397PM	1090625023	Earl Marmar	RCUR offset to 2000 (from 0) prefill puff to 20 msec IGT = 4.7 e-7 at transition to pulse fizzle, looks a bit worse than 22
Jun 25 2009 03:01:57:247PM	1090625024	Earl Marmar	prefill puff to 17 msec IGT = 3.7 e-7 at transition to pulse fizzle similar to 23
Jun 25 2009 03:37:46:980PM	1090625025	Earl Marmar	ECDC for 20 minutes prior to this shot Ip flattop programmed to 700 kA rcur offset to 2500 (from 2000) IGT = 9.1 e-7 at transition to pulse fizzle, little or no current
Jun 25 2009 03:52:53:267PM	1090625026	Earl Marmar	IEF4 to -1300A (from -1270) prior to t=0. RCUR offset to 2000 (from 2500) IGT = x e-7 at transition to pulse fizzle; might be slightly better than shot 25
Jun 25 2009 04:08:41:490PM	1090625027	Earl Marmar	no DPCS changes IGT = 4.1 e-7 at transition to pulse fizzle, not much change
Jun 25 2009 04:15:02:057PM	1090625028	Earl Marmar	reload segment 1 from today's shot 18 IGT = 3.4 e-7 at transition to pulse fizzle, a few signs of a bit of current
Jun 25 2009 04:26:46:340PM	1090625029	Earl Marmar	reload segment 1 from today's shot 21 IGT = 3.1 e-7 at transition to pulse fizzle less impressive than 28
Jun 25 2009 04:38:22:127PM	1090625030	Earl Marmar	RCUR offset to 2000 (from 3000) IGT = 2.7 e-7 at transition to pulse power supply dud, no TF
Jun 25 2009 04:49:11:257PM	1090625031	Earl Marmar	no DPCS changes IGT = 2.6 e-7 at transition to pulse fizzle closer, got to ~40 kA, bounces
Jun 25 2009 05:02:49:137PM	1090625032	Earl Marmar	RCUR offset to 2500 (from 2000) IGT = 2.6 e-7 at transition to pulse fizzle, closer still
Jun 25 2009 05:14:31:233PM	1090625033	Earl Marmar	RCUR offset to 3000 (from 2500) IGT = 2.5 e-7 at transition to pulse fizzle, weak, little current

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:01:13:920AM	Plasma	Ok
2	09:43:57:080AM	Plasma	Ok
3	09:56:10:240AM	Plasma	Ok
4	10:08:38:977AM	Plasma	Ok
5	10:21:18:013AM	Plasma	Ok
6	10:33:51:363AM	Plasma	Ok
7	10:46:19:460AM	Plasma	Ok
8	10:58:47:653AM	Plasma	Ok
9	11:42:42:000AM	Plasma	Ok
10	11:55:17:737AM	Plasma	Ok
11	12:07:42:570PM	Plasma	Ok
12	12:20:12:513PM	Plasma	Ok
13	12:32:36:050PM	Plasma	Ok
14	12:45:01:897PM	Plasma	Ok
15	12:57:45:950PM	Plasma	Ok
16	01:10:41:390PM	Plasma	Ok
17	01:23:21:147PM	Plasma	Ok
18	01:36:02:417PM	Plasma	Ok
19	01:48:33:140PM	Plasma	Ok
20	02:01:16:770PM	Plasma	Ok
21	02:14:12:447PM	Plasma	Ok
22	02:28:28:013PM	Plasma	Ok
23	02:41:22:867PM	Plasma	Ok
24	02:54:06:930PM	Plasma	Ok
25	03:29:47:350PM	Plasma	Ok
26	03:42:22:730PM	Plasma	Ok
27	03:54:53:423PM	Plasma	Ok
28	04:07:37:287PM	Plasma	Ok
29	04:21:27:713PM	Plasma	Ok
30	04:33:31:830PM	Plasma	Bad	No TF
31	04:42:41:817PM	Plasma	Ok
32	04:55:12:447PM	Plasma	Ok
33	05:08:06:060PM	Plasma	Ok

System Availability

Jun 25 2009 09:01:07:640AM

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 no 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. Jun 10 2009 10:21AM (twf) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes 2pi-diode online only. Jun 22 2009 10:26AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no Bottle Removed from the Cell, Piezo box on Igloo Removed. System in safe mode for In-Vessel Access May 30 2008 02:25PM (dekow) Jim Irby Boronization dekow,irby CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no external cryopump hardware removed from machine --- system is safe May 30 2008 01:48PM (irby) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS no 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. Jul 03 2008 03:06PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan D Alpha no \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Jun 04 2008 09:17AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa no poses no safety hazard for people working around the machine May 30 2008 01:54PM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no safely disabled; ready to be dismantled May 28 2008 10:22AM (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 power locked & tagged out; gate valve disabled May 28 2008 10:03AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung ECDC no 6/10/09 Magnetron relocated to west wall in cell at H-port. All controls and hardware have been installed but need to be tested prior to full operation. Magnetron Unplugged and Red tagged, PEI breaker red tagged, Safe for In-Vessel Activity Jun 10 2009 02:35PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE no Power off, no hazard present. May 30 2008 01:59PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauge installed. Controlleer is on. Jun 24 2009 10:00AM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC no Detector ready, on. But beamline up to air, not fully aligned. Some signals possible, not assured. Jun 24 2009 08:32AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 no Detector at LN2 temp. Jun 24 2009 08:32AM (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 poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar HEAT no Disconnect switch is open, reg tagged and locked. Shunt Trip Breaker is opened. Safe for in-vessel work. Jun 04 2008 12:24PM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr no Hirex-Sr has been removed from the cell and is in temporary storage May 30 2008 01:48PM (ince) John Rice High Resolution X-Ray ince,rice HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt ICRF D-Antenna no Transmission line disconnected. HV tagged out. Safe for machine entry. May 28 2008 08:16AM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna no Transmission line disconnected. HV tagged out. Safe for machine entry. FFT out May 28 2008 08:17AM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna no HV tagged. Safe for machine entry. loop dissembly started. May 28 2008 08:17AM (ylin) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha no   Jun 17 2009 03:43PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson no Rolled back Jun 17 2009 03:43PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson no Front end under good vacuum. Beamline installed, but not fully aligned or pumped down. Detector cold. Jun 24 2009 08:31AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS no Power to all gauges is turned off. Jun 04 2008 01:25PM (labombard) 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 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 Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards no detector removed from machine ---- cables relled back to rack May 30 2008 01:49PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA no System is diabled. House air to all pneumatic valves is disconnected. Jun 04 2008 01:26PM (labombard) Brian LaBombard NINJA gas puff labombard,terry PCI no Both HeNe and CO2 lasers have been shutdown. System is safe. May 30 2008 01:58PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges no All HV supplies are turned off and unplugged Jun 02 2008 01:09PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV no WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jun 04 2008 09:18AM (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 Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes Operational ---- ECDC running as required Jun 19 2009 08:06AM (irby) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD no Power supplies are off. All cables are unplugged at the F-port rack. Jun 02 2008 01:10PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH no All power supplies are off. Cables are unplugged at the A-port rack. Jun 02 2008 01:10PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD no All power supplies are off. Cables are unplugged at the F-port rack. Jun 02 2008 01:11PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV no All power supplies are off. Cables are unplugged at the F-port rack. Jun 02 2008 01:11PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer no Disconnected May 30 2008 01:47PM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP no Probe is retracted behind gatevalve. Air lines are disconnected. Probes cables disconnected at A-port rack. Jun 02 2008 01:14PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP no Probe is retracted fully. Air lines are disconnected. Probe cables disconnected at F-port rack. Jun 02 2008 01:13PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP no Probe cables are disconnected at F-port rack. Jun 02 2008 01:17PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Sparker yes Sparker now at K-Hor. Set for 100 uA of current. Will up to 200 uA before first plasma Jun 18 2009 01:01PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray TS - Core no Expected availability: week of June 29 Jun 24 2009 01:31PM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge no Expected availability: week of July 20 Jun 24 2009 01:32PM (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 cables attached, DAQ test run, ready for first plasma Jun 17 2009 03:42PM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke