Alcator C-Mod Run 1120910 Information

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Miniproposals

Operators
Session leader(s):
Physics operator(s):
Engineering operator(s):

Engineering Operator Run Comment
Fast Gas Testing

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Physics Operator Summaries

Session Leader Comments
Sep 10 2012 03:42:05:390PM1120910001Geoff OlynykGas jet tests today with new orifice plate installed at B-port. (0.1695" diameter)

shot 1 - no gas (Shot cycle problems?)
Sep 10 2012 03:56:31:877PM1120910002Geoff Olynykshot 2 - shot cycle worked properly this time but no massive gas injection - gate valve didn't open
Sep 10 2012 04:09:52:840PM1120910003Geoff Olynykshot 3 - Tried running the gas jets in 'test mode' this time to manually open the gate valve.

Still didn't open. Figure that it's caused by one of the vacuum pumps on the gas jet system being replaced, and the new one doesn't have a speed indicator.
Sep 10 2012 04:24:28:893PM1120910004Geoff Olynykshot 4 - Plugged the refurbished vacuum pump into the interlock so that it gets a permissive bit. Worked this time. (That was the problem.)

Fired B-jet with 0.1695" orifice plate (nominally).

TC gauge pressure after shot - 259.3 mtorr
B-bottom MKS gauge reads 379.6 mtorr

Flow rate appears to be about 154 torr-l/ms (compared to F-jet about 180 torr-l/ms)

I don't get it, this is lower flow rate than the B-port gas valve had with the 0.161" orifice plate in it. Did the wrong hole get drilled here?
Sep 10 2012 04:34:14:640PM1120910005Geoff Olynykshot 5 - Fire both gas jets.

B-start 1.00000 s
B-dur 1.41 ms

F-start 0.99894 s
F-dur 2.50 ms

(t_stag = 0)

TC gauge pressure after shot - 546.9 mtorr
B-bottom MKS gauge after shot - 811.5 mtorr

B flow rate = 159.5 mtorr/ms
F flow rate = 183.9 mtorr/ms (15.3% higher than B-port)

I think we're going to go with this. Disappointing that we didn't get a better match - I think the hole must have been drilled incorrectly. This will do though.

Physics Operator Comments

Engineering Operator Comments
ShotTimeTypeStatusComment
103:38:42:263PMTestBadGas Test
203:54:07:777PMTestBadno gas
304:06:57:427PMTestBadNo gas
404:14:34:703PMTestOkGas test
504:26:44:230PMTestOkgas test

System Availability
Sep 10 2012 03:38:16:813PM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDnosecured - tagged outJun 2 2008 11:03:58:433AM (sears)Joe SnipesActive MHD Antennagolfit
BESyesBES system is onlineNov 22 2011 02:21:12:050PM (bespam)Bill RowanBeam Emission Spectroscopybespam,liao,rowan
BolometersyesMidplane diodes functioning properly. Midplane bolometers working and calibrated. DIV bolometers installed but not yet toaster calibratedApr 20 2012 09:57:29:520AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
Boronizationyes Jun 15 2012 05:02:46:313PM (dekow)Jim IrbyBoronizationdekow,irby
CECEyesThe system is currently operational for Te tilde measurement. Talk to Choongki about the current configuration Jul 3 2012 04:38:00:317PM (nthoward)Anne WhiteCorrelation ECEnthoward,sck83,whitea
CNPAyesMultiple channel CNPA available, no safety risk for in-vessel accessApr 14 2011 12:01:59:693PM (parker)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper Divertoryes Jun 15 2012 05:02:31:550PM (dekow)Brian LaBombardUpper Divertor Cryopumpdekow,irby,labombard
CXRSyescore-CXRS system is onlineNov 22 2011 02:21:22:280PM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,liao,rachmcd,rowan
CXRS edgeyesMichael CHurchill has primary responsibility at the momentApr 19 2011 11:44:46:247AM (blip)Bruce LipshultzMeasurement of CXR light in the pedestal region at both the high- and low-field sidesblip,rmchurch
D Alphayes\ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not availableJul 1 2009 09:45:41:090AM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsanosystem is is installed and aligned, but not functional (appears to be a broken cable)Dec 5 2011 02:41:42:867PM (marmar)Earl MarmarVisible Bremsstrahlung Imagingmarmar
Disruption Mitigationyestwo gas jet valves active as of Feb 2012May 15 2012 10:09:23:597AM (granetz)Robert GranetzGas Jetgranetz,whyte
Divertor IRno Mar 6 2007 10:50:41:677AM Glen WurdenDivertor IR Digital Videogwurden,terry
Divertor IR Spectroscopyno Mar 6 2007 10:51:39:897AM Glen WurdenDivertor IR Spectroscopygwurden,terry
DMBolo AXUV diodesyesDiodes are taking usable data. Not all post-processing code is working yet.Feb 1 2012 01:24:23:953PM (golynyk)Geoff OlynykSet of six AXUV diodes in a toroidal array of midplane wall boxes.golynyk,granetz,mlreinke,whyte
DNByes"The beam could break at any moment."May 15 2012 10:09:52:470AM (granetz)Robert GranetzDiagnostic Neutral Beamdterry,granetz,mochung
ECDCyes Apr 26 2012 03:23:19:057PM (dekow)Jim Irby2.45 GHz, 3 kW, discharge cleaning systemdekow,irby,pfeiffer
FRC-ECEyesFRC-ECE is onlineMay 14 2012 11:53:01:693AM (bespam)Perry PhillipsHeterodyne ECE-32 channelsbespam,liao,phillips,rowan,whitea
FTCIyesSystem OperationalMay 14 2012 11:50:45:590AM (irby)Jim IrbyFast two-color interferometerirby
G-Side RatiomaticyesInstalled April 25,2012. New controller installed 5/29/2012Jun 7 2012 10:40:00:957AM (toland)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
Glow DischargenoHV cables disconnected and power supplies off. Electrical plugs have been disconnected, capped and red tagged.Mar 5 2012 10:21:53:460AM (dekow)Jim Irby1 kV, 5 A, glow discharge systemdekow,dterry,irby
GPCyesOperationalApr 27 2012 07:41:46:907AM (hubbard)Amanda HubbardECE Polychromaterhubbard
GPC2yesOperationalApr 27 2012 07:42:03:317AM (hubbard)Amanda HubbardECE Polychromaterhubbard
GPIyesThe 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 TerryGas Puff Imagingterry,zweben
H/Dyessystem is functional and taking dataDec 5 2011 02:42:29:857PM (marmar)Earl MarmarH/D Ratiomarmar
HEATyes Apr 26 2012 03:23:49:607PM (dekow)Gary Dekow - Machine Heaters -burke,dekow
Hirex JryesHirex-Jr has been installedJun 28 2010 03:36:33:420PM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesInstalled 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 RiceHigh Resolution X-Raycgao,ldelgado,rice,ypodpaly
HXRyes32 Channels operational,, no safety risk for in-vessel accessApr 14 2011 12:05:24:810PM (parker)Ron ParkerHard X-Ray Arrayfaust,parker,schmidt
ICRF D-Antennayes May 31 2012 09:20:06:827AM (wukitch)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayes May 31 2012 09:19:57:640AM (wukitch)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayes May 31 2012 09:19:47:443AM (wukitch)Steve WukitchJ-port antennawukitch,ylin
Impurity SpectroscopyyesBeing upgraded with better optics and new spectrographs. Dan Miller has primary responsibility.Apr 19 2011 11:46:02:193AM (blip)Bruce LipshultzMeasurement of recycling light and impurity source rates at multiple surfaces around the tokamakblip,miller
Laser Blow-OffyesPumped Down, Laser has not yet been tested but otherwise operationalMay 14 2012 04:31:17:037PM (nthoward)Martin GreenwaldImpurity Injection Systemg,nthoward
Lower HybridyesLH is now available for plasma operation up to ~900 kW net power.Jul 3 2012 02:50:00:693PM (wallaceg)Ron ParkerLower Hybriddterry,parker,wallaceg
Lower Hybrid ReflectometernooffApr 15 2011 08:24:27:930AM (dominguez)Arturo DominguezLower Hybrid Reflectometerdominguez,marmar,parker,sgbaek
LoWEUSyesLoWEUS 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 Spectrometermarkchil,mlreinke
LPInoBeam line removedMay 30 2008 02:09:12:833PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphanoMidplane Lyman-a not functioning. New B-PORT Lyman (BPLY) still being debugged.Jul 12 2012 08:52:28:233AM (mlreinke)Matt ReinkeLyman alpha camerasfaustian,labombard,mlreinke
Magneticsyes Dec 1 2011 11:51:51:970AM (g)Robert GranetzBp coils and flux loops for equilibrium controlgranetz,wolfe
McPhersonnoMcPherson 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 TerryVUV Spectrometermarkchil,mlreinke,terry
MichelsonyesVacuum 3-4e-8 T. Starting with Michelson at reduced speed.Apr 27 2012 07:42:41:960AM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyes Dec 2 2011 12:27:47:163PM (toland)Brian LaBombardBaratron pressure gaugeslabombard,toland
MLPyesOperational. Connected to A-port probe systemMay 10 2012 08:40:19:910AM (labombard)Brian LaBombardMirror Langmuir Probe Electronics Systemlabombard
MSEyes2/29/2012 MSE operational. No HV or vacuum safety issuesFeb 29 2012 12:26:13:863PM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesVoltage 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 FioreNeutron Detectorsfiore
Neuts and HardsyesAll detectors Powered On --- Waiting for neutrons for calibrationNov 22 2011 01:05:24:380PM (irby)Jim IrbyX-Ray/Neutron Detectors at K-Horirby
NINJAyesC-bottom and new F-bottom system ready.Dec 2 2011 12:28:44:843PM (toland)Brian LaBombardNINJA gas pufflabombard,terry,toland
PCIyesOperational.Jul 10 2012 07:08:06:883PM (ntsujii)Miklos PorkolabPhase Contrast Imagingemd,ennever,ntsujii,porkolab
Penning GaugesyesHV power supplies turned ON in INIT, off in RECOOLMay 10 2012 08:41:03:000AM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational.Jul 1 2009 09:46:29:543AM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
Polarimeteryes3 chords operational but with high noise levelJan 6 2012 04:22:20:903PM (irby)Jim IrbyC-Mod Polarimeterirby
Power - Alternator Air Switchyes Apr 26 2012 03:24:21:607PM (dekow)Gary DekowAlternator to Power Room Power Supply Connectioncochran,dekow,dterry,irby
Power - PEIyes Apr 26 2012 03:24:41:250PM (dekow)Gary DekowPEI Systemcochran,dekow,dterry,irby
Power - TMXyes Apr 26 2012 03:24:57:153PM (dekow)Gary DekowEf2s,. EFCs and A-Coilsbyford,cochran,dekow,dterry,irby
Power Systemsyes Apr 26 2012 03:25:14:497PM (dekow)Jim IrbyC-Mod Magnet Suppliesbyford,cochran,dekow,dterry,irby
Probe Array - ISDyesOperational. Some dead probes.May 10 2012 08:41:58:120AM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesOperational. 4 out of 6 probes working.May 10 2012 08:41:40:557AM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesOperational.May 10 2012 08:42:13:733AM (labombard)Brian LaBombardOuter Lower Divertor Probe Array (F and J)labombard
Probe Array - UDIVyesOperational. Some dead probes.May 10 2012 08:42:32:663AM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometeryesOn 1120608, the high frequency channels: 112, 140 and the variable, have been disconnected for some troubleshooting. All other channels are connectedJun 14 2012 11:28:59:603AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesOperational. A variety of probe heads are ready for use.May 10 2012 08:43:10:937AM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesOperational.May 10 2012 08:43:24:887AM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPnoNot functioning. Probe tips are melted. Repair not performed during break.May 10 2012 08:44:43:137AM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
Shoelace AntennayesOperationalMay 10 2012 08:45:08:320AM (labombard)Brian LaBombardHigh-k active MHD antenna, for QCM, WCM studiesgolfit,labombard
SOL reflectometeryesc-port (top, middle, bottom) and h-port available. Only 1 of 4 locations can be used for each dischargeMay 1 2012 04:54:58:820PM (cornwall)Cornwall LauSOL reflectometercornwall,wukitch,ylin
SparkeryesSparker Power Supply powered up. Connected at K port using red cable 4/23/12 9:25AMApr 23 2012 12:06:10:983PM (parkin)Jim IrbyField Emission Preionization for C-Moddekow,irby,parkin
Surface Science StationyesSSS is under vacuum and fully available.Jul 3 2012 02:46:59:753PM (ochoukov)Bruce LipschultzRadially scanning probe located on K-portblip,ochoukov
TCIyesTCI lasers in operation May 14 2012 11:51:18:700AM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - CoreyesOperating with both lasers, density calibration ongoing.Jul 19 2012 10:20:09:220AM (jrwalk)Jerry HughesCore Thomson scatteringjrwalk,jwhughes,yma
TS - EdgeyesOperating with both lasers, density calibration ongoing.Jul 19 2012 10:20:28:323AM (jrwalk)Jerry HughesMillimeter resolution edge Thomson scatteringjrwalk,jwhughes,yma
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58:35:493AM (agraf)Alex GrafVisible Spectrometeragraf
XEUSyesXEUS 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 ReinkeX-ray Extended Ultraviolet Spectrometermarkchil,mlreinke
XTOMOyesARRAY1->5 available. Specific channels on various arrays display issues.Apr 20 2012 05:36:28:523PM (faustian)Robert GranetzX-Ray Tomographyfaustian,granetz,mlreinke