Miniproposals

Engineering Operator Run Comment

Fast Gas Tests

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Physics Operator Summaries

Session Leader Comments
Aug 27 2012 01:10:40:810PM		Geoff Olynyk	This morning, Tom Toland installed a 0.161" diameter orifice plate at the outlet to the B-port (OLD) fast gas valve. We are going to test-fire the massive gas jet system today to see if our orifice plate is working to stopper down the flow rate on the OLD valve (at B-port), to be equal to that of the NEW valve at F-port. The flow rates BEFORE today were: OLD valve (B-port): 240,000 torr-l/s NEW valve (F-port): 180,000 torr-l/s
Aug 27 2012 03:09:17:797PM		Geoff Olynyk	Results of the tests with the 0.161" diameter orifice plate on B-jet in early afternoon on 2012-08-27 (shots 001–005): B-jet flow rate (with 0.161" diameter orifice plate): shot 001 - 193,673 torr-l/s shot 004 - 198,788 torr-l/s average: 196,231 torr-l/s F-jet flow rate shot 003 - 172,155 torr-l/s shot 005 - 171,504 torr-l/s average: 171,830 torr-l/s So we want to stopper down the B-jet more, with a new orifice plate: (NEW_DIA / 0.161 in.)^2 = 171,830/196,231 NEW_DIA = sqrt(171,830/196,231) * 0.161 in. NEW_DIA = 0.1506" We already have a 0.147" diameter orifice plate made; we'll use that.
Aug 27 2012 01:23:44:960PM	1120827001	Geoff Olynyk	Shot 001: Fire B-jet only (with 0.161" diameter orifice plate installed). Time at 1.000 s, duration 1.41 ms (standard). Plenum pressure 57 bar. Pressure pulse duration (per scope) - 7.84 ms Torus pressure after shot- Thermocouple gauge: 262.1 mtorr B-side lower MKS gauge: 379.6 mtorr Torus volume: 4000 l (assumed) Using B-side lower MKS gauge for pressure, we calculate the gas injected as 1518.4 torr-l. Flow rate 193,673 torr-l/s. It worked! We're within 8% of where we wanted to be. Next - fire F-port jet (NEW valve) to verify flow rate on that one.
Aug 27 2012 01:32:22:370PM	1120827002	Geoff Olynyk	Shot 002: Tried to fire F-jet only. Didn't work, TORVAC permissive not high. Something to do with engineering setup. Next - try again
Aug 27 2012 01:43:27:817PM	1120827003	Geoff Olynyk	Shot 003: Fire F-jet only. Time at 1.000 s, duration 2.50 ms (standard). Plenum pressure 57 bar. Pressure pulse duration (per scope) - 10.3 ms Torus pressure after shot- Thermocouple gauge: 302.2 mtorr B-side lower MKS gauge: 443.3 mtorr Torus volume: 4000 l (assumed) Using B-side lower MKS gauge for pressure, we calculate the gas injected as 1773.2 torr-l. Flow rate 172,155 torr-l/s. This means that the B-jet flow rate is now 12.2% higher than the F-jet flow rate. If we went to the 0.147" diameter (instead of 0.161"), that should stopper down the B-jet flow rate to 161,455 torr-l/s (a bit too small). Next - fire B-port jet (OLD valve) again to verify.
Aug 27 2012 01:52:30:013PM	1120827004	Geoff Olynyk	Shot 004: Fire B-jet only. Trigger start at 1.000 s, duration 1.41 ms (standard). Plenum pressure 57 bar. Pressure pulse duration (per scope) - 7.59 ms Torus pressure after shot- Thermocouple gauge: 262.1 mtorr B-side lower MKS gauge: 377.2 mtorr Torus volume: 4000 l (assumed) Using B-side lower MKS gauge for pressure, we calculate the gas injected as 1508.8 torr-l. Flow rate 198,788 torr-l/s. Next - Fire F-jet again to verify.
Aug 27 2012 03:08:49:793PM	1120827005	Geoff Olynyk	Shot 005: Fire F-jet only. Trigger start at 1.000 s, duration 2.50 ms (standard). Plenum pressure 57 bar. Pressure pulse duration (per scope) - 9.77 ms Torus pressure after shot- Thermocouple gauge: 287.6 mtorr B-side lower MKS gauge: 418.9 mtorr Torus volume: 4000 l (assumed) Using B-side lower MKS gauge for pressure, we calculate the gas injected as 1675.6 torr-l. Flow rate 171,504 torr-l/s. Next - Done for the day. I think we're going to need to stopper down the B-jet to the 0.147" diameter orifice...
Aug 27 2012 03:22:15:910PM	1120827006	Geoff Olynyk	Shot 006: Tom Toland installed the 0.147" orifice plate on the outlet of the B-port fast valve. Let's try it! Fire B-jet only. Trigger start at 1.000 s, duration 1.41 ms (standard). Plenum pressure 57 bar. Pressure pulse duration (per scope) - 9.37 ms Torus pressure after shot- Thermocouple gauge: 259.3 mtorr B-side lower MKS gauge: 376.4 mtorr Torus volume: 4000 l (assumed) Using B-side lower MKS gauge for pressure, we calculate the gas injected as 1505.6 torr-l. Flow rate 160,683 torr-l/s. (compare to 171,830 torr-l/s on F-jet) Next - Do it again to verify.
Aug 27 2012 03:32:49:457PM	1120827007	Geoff Olynyk	Shot 007: Fire B-jet again with 0.147" orifice plate installed. Trigger start at 1.000 s, duration 1.41 ms (standard). Plenum pressure 57 bar. Pressure pulse duration (per scope) - 9.36 ms Torus pressure after shot- Thermocouple gauge: 259.3 mtorr B-side lower MKS gauge: 376.9 mtorr Torus volume: 4000 l (assumed) Using B-side lower MKS gauge for pressure, we calculate the gas injected as 1507.6 torr-l. Flow rate 161,068 torr-l/s. (compare to 171,830 torr-l/s on F-jet) Next - That's it for today. Have to think about this. Don't like the shape of the pressure readings on the B-jet with this smaller orifice-plate.

Physics Operator Comments

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	01:16:27:620PM	Test	Ok	Gas test
2	01:28:55:907PM	Test	Bad	No Gas Torvac interlock
3	01:36:19:280PM	Test	Ok	Gas test
4	01:49:00:533PM	Test	Ok	Gas test
5	02:01:26:327PM	Test	Ok	gas test
6	03:16:28:477PM	Test	Ok	Gas test
7	03:29:01:753PM	Test	Ok	Gas test

System Availability

Aug 27 2012 01:16:05:897PM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD no secured - tagged out Jun 2 2008 11:03:58:433AM (sears) Joe Snipes Active MHD Antenna golfit BES yes BES system is online Nov 22 2011 02:21:12:050PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes Midplane diodes functioning properly. Midplane bolometers working and calibrated. DIV bolometers installed but not yet toaster calibrated Apr 20 2012 09:57:29:520AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes   Jun 15 2012 05:02:46:313PM (dekow) Jim Irby Boronization dekow,irby CECE yes The system is currently operational for Te tilde measurement. Talk to Choongki about the current configuration Jul 3 2012 04:38:00:317PM (nthoward) Anne White Correlation ECE nthoward,sck83,whitea CNPA yes Multiple channel CNPA available, no safety risk for in-vessel access Apr 14 2011 12:01:59:693PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor yes   Jun 15 2012 05:02:31:550PM (dekow) Brian LaBombard Upper Divertor Cryopump dekow,irby,labombard CXRS yes core-CXRS system is online Nov 22 2011 02:21:22:280PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan CXRS edge yes Michael CHurchill has primary responsibility at the moment Apr 19 2011 11:44:46:247AM (blip) Bruce Lipshultz Measurement of CXR light in the pedestal region at both the high- and low-field sides blip,rmchurch D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 1 2009 09:45:41:090AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa no system is is installed and aligned, but not functional (appears to be a broken cable) Dec 5 2011 02:41:42:867PM (marmar) Earl Marmar Visible Bremsstrahlung Imaging marmar Disruption Mitigation yes two gas jet valves active as of Feb 2012 May 15 2012 10:09:23:597AM (granetz) Robert Granetz Gas Jet granetz,whyte Divertor IR no   Mar 6 2007 10:50:41:677AM  Glen Wurden Divertor IR Digital Video gwurden,terry Divertor IR Spectroscopy no   Mar 6 2007 10:51:39:897AM  Glen Wurden Divertor IR Spectroscopy gwurden,terry DMBolo AXUV diodes yes Diodes are taking usable data. Not all post-processing code is working yet. Feb 1 2012 01:24:23:953PM (golynyk) Geoff Olynyk Set of six AXUV diodes in a toroidal array of midplane wall boxes. golynyk,granetz,mlreinke,whyte DNB yes "The beam could break at any moment." May 15 2012 10:09:52:470AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,mochung ECDC yes   Apr 26 2012 03:23:19:057PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE yes FRC-ECE is online May 14 2012 11:53:01:693AM (bespam) Perry Phillips Heterodyne ECE-32 channels bespam,liao,phillips,rowan,whitea FTCI yes System Operational May 14 2012 11:50:45:590AM (irby) Jim Irby Fast two-color interferometer irby G-Side Ratiomatic yes Installed April 25,2012. New controller installed 5/29/2012 Jun 7 2012 10:40:00:957AM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no HV cables disconnected and power supplies off. Electrical plugs have been disconnected, capped and red tagged. Mar 5 2012 10:21:53:460AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Operational Apr 27 2012 07:41:46:907AM (hubbard) Amanda Hubbard ECE Polychromater hubbard GPC2 yes Operational Apr 27 2012 07:42:03:317AM (hubbard) Amanda Hubbard ECE Polychromater hubbard GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 1 2009 09:45:50:933AM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes system is functional and taking data Dec 5 2011 02:42:29:857PM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Apr 26 2012 03:23:49:607PM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36:33:420PM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr yes Installed and aligned. Will be available for Ti/Vr profiles after focusing tests and locked modes are taken. Dec 6 2011 08:21:02:453AM (ypodpaly) John Rice High Resolution X-Ray cgao,ldelgado,rice,ypodpaly HXR yes 32 Channels operational,, no safety risk for in-vessel access Apr 14 2011 12:05:24:810PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna yes   May 31 2012 09:20:06:827AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes   May 31 2012 09:19:57:640AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes   May 31 2012 09:19:47:443AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin Impurity Spectroscopy yes Being upgraded with better optics and new spectrographs. Dan Miller has primary responsibility. Apr 19 2011 11:46:02:193AM (blip) Bruce Lipshultz Measurement of recycling light and impurity source rates at multiple surfaces around the tokamak blip,miller Laser Blow-Off yes Pumped Down, Laser has not yet been tested but otherwise operational May 14 2012 04:31:17:037PM (nthoward) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid yes LH is now available for plasma operation up to ~900 kW net power. Jul 3 2012 02:50:00:693PM (wallaceg) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer no off Apr 15 2011 08:24:27:930AM (dominguez) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek LoWEUS yes LoWEUS viewing the 10-30 nm region, spectral brightness vs. lambda and time are being stored in tree. Apr 20 2012 10:43:34:077AM (mlreinke) Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometer markchil,mlreinke LPI no Beam line removed May 30 2008 02:09:12:833PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha no Midplane Lyman-a not functioning. New B-PORT Lyman (BPLY) still being debugged. Jul 12 2012 08:52:28:233AM (mlreinke) Matt Reinke Lyman alpha cameras faustian,labombard,mlreinke Magnetics yes   Dec 1 2011 11:51:51:970AM (g) Robert Granetz Bp coils and flux loops for equilibrium control granetz,wolfe McPherson no McPherson under vacuum but is not run on a day-to-day basis. Can be requested if desired. LoWEUS has taken over as the primary Mo monitor. Jul 12 2012 08:53:14:937AM (mlreinke) Jim Terry VUV Spectrometer markchil,mlreinke,terry Michelson yes Vacuum 3-4e-8 T. Starting with Michelson at reduced speed. Apr 27 2012 07:42:41:960AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes   Dec 2 2011 12:27:47:163PM (toland) Brian LaBombard Baratron pressure gauges labombard,toland MLP yes Operational. Connected to A-port probe system May 10 2012 08:40:19:910AM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE yes 2/29/2012 MSE operational. No HV or vacuum safety issues Feb 29 2012 12:26:13:863PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Voltage is on for He3 detectors on J port. Remaining voltages will be turned on for the first run. Apr 23 2012 09:31:22:063AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes All detectors Powered On --- Waiting for neutrons for calibration Nov 22 2011 01:05:24:380PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA yes C-bottom and new F-bottom system ready. Dec 2 2011 12:28:44:843PM (toland) Brian LaBombard NINJA gas puff labombard,terry,toland PCI yes Operational. Jul 10 2012 07:08:06:883PM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab Penning Gauges yes HV power supplies turned ON in INIT, off in RECOOL May 10 2012 08:41:03:000AM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 1 2009 09:46:29:543AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter yes 3 chords operational but with high noise level Jan 6 2012 04:22:20:903PM (irby) Jim Irby C-Mod Polarimeter irby Power - Alternator Air Switch yes   Apr 26 2012 03:24:21:607PM (dekow) Gary Dekow Alternator to Power Room Power Supply Connection cochran,dekow,dterry,irby Power - PEI yes   Apr 26 2012 03:24:41:250PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Apr 26 2012 03:24:57:153PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Apr 26 2012 03:25:14:497PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational. Some dead probes. May 10 2012 08:41:58:120AM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational. 4 out of 6 probes working. May 10 2012 08:41:40:557AM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Operational. May 10 2012 08:42:13:733AM (labombard) Brian LaBombard Outer Lower Divertor Probe Array (F and J) labombard Probe Array - UDIV yes Operational. Some dead probes. May 10 2012 08:42:32:663AM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes On 1120608, the high frequency channels: 112, 140 and the variable, have been disconnected for some troubleshooting. All other channels are connected Jun 14 2012 11:28:59:603AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational. A variety of probe heads are ready for use. May 10 2012 08:43:10:937AM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. May 10 2012 08:43:24:887AM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP no Not functioning. Probe tips are melted. Repair not performed during break. May 10 2012 08:44:43:137AM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Shoelace Antenna yes Operational May 10 2012 08:45:08:320AM (labombard) Brian LaBombard High-k active MHD antenna, for QCM, WCM studies golfit,labombard SOL reflectometer yes c-port (top, middle, bottom) and h-port available. Only 1 of 4 locations can be used for each discharge May 1 2012 04:54:58:820PM (cornwall) Cornwall Lau SOL reflectometer cornwall,wukitch,ylin Sparker yes Sparker Power Supply powered up. Connected at K port using red cable 4/23/12 9:25AM Apr 23 2012 12:06:10:983PM (parkin) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station yes SSS is under vacuum and fully available. Jul 3 2012 02:46:59:753PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes TCI lasers in operation May 14 2012 11:51:18:700AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with both lasers, density calibration ongoing. Jul 19 2012 10:20:09:220AM (jrwalk) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma TS - Edge yes Operating with both lasers, density calibration ongoing. Jul 19 2012 10:20:28:323AM (jrwalk) Jerry Hughes Millimeter resolution edge Thomson scattering jrwalk,jwhughes,yma Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58:35:493AM (agraf) Alex Graf Visible Spectrometer agraf XEUS yes XEUS viewing the 1-6 nm region, spectral brightness vs. lambda and time are being stored in tree. Apr 20 2012 10:43:43:107AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer markchil,mlreinke XTOMO yes ARRAY1->5 available. Specific channels on various arrays display issues. Apr 20 2012 05:36:28:523PM (faustian) Robert Granetz X-Ray Tomography faustian,granetz,mlreinke