Alcator C-Mod Run 1120618 Information

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Miniproposals

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

Engineering Operator Run Comment
Fast Gas Tests

Session Leader Plans
Entered: Jun 18 2012 05:48:34:007PM
Author: Theodore Golfinopoulos
MP#697 - Shoelace Antenna: Survey of boundary plasma response (day 1, L-mode)

The primary goal of the MP is to survey the L-mode edge plasma's response to the application of magnetic perturbations from C-Mod's new shoelace antenna system.

Diagnostic setup:
Full set of Mirnov coils
A-port scanning probe with magnetic head
F-port scanning probe
GPI, PCI, differential TCI, reflectometer
Edge Thomson (for EDA H-Mode)
Desired:
Edge Thomson
WASP probe
HIREX, CXRS for rotation

No DNB, ICRF, LH

Overnight ECDC in helium, standard parameters.

Shot Plan
Establish low-field start up (3.5 tesla) 0.6 MA discharge at NL04 ~0.4.
Change to 0.8 MA if possible.

1.A Shot-to-shot Density scan (8-10 shots)
Shoelace: ramp frequency up an down (45 kHz to max), with power ramp down at higher frequencies to avoid tripping
Dwell ASP mag head
Run densities: 0.4, 0.6, 0.8, 1.0, 1.2 (NL04)

1.B Ramping density (2-3 shots)
Shoelace: fixed frequency (100 kHz, then 150 kHz or other)
with 100 Hz square-wave amplitude modulation (50-50 duty cycle)
Ramp density from 0.4 10 1.0 (NL04)
Ramp density from 0.8 10 1.2 (NL04)

1.C Gap scan (2-3 shots)
Shoelace: fixed frequency (100 kHz, then 150 kHz or other)
with 100 Hz amplitude modulation

1.D q scan (4-5 shots)
Shoelace: fixed frequency (100 kHz, then 150 kHz or other)
with 100 Hz amplitude modulation
Ramp current down (0.8 MA to 0.4 MA) NL04 ~ 0.6
Ramp current up (0.4 MA to 0.8 MA) NL04 ~ 0.6
Ramp current down (0.8 MA to 0.4 MA) NL04 ~ 1.0
Ramp current up (0.4 MA to 0.8 MA) NL04 ~ 1.0

1.E Mode layer investigation (4-5 shots)
Run two different NL04 (0.6, 1.0 TBD)
Staircase Shoelace frequency
Shoelace: a. frequency steps: 50, 100, 150 kHz (constant power program)
b. frequency steps: 100, 150, 200 kHz (constant power program)
Mag Probe: plunge to separatrix at 0.7, 1.0, 1.3 seconds (coordinated with shoelace)

Physics Operators Plans

Session Leader Summaries

Physics Operator Summaries

Session Leader Comments

Physics Operator Comments

Engineering Operator Comments
ShotTimeTypeStatusComment
102:09:31:223PMTestOkFast gas test
202:32:00:847PMTestOkFast gas test
302:50:46:220PMTestOkfast gas test
403:07:29:347PMTestOkFast gas test
503:17:35:877PMTestOkFast gas test
603:35:18:800PMTestOkFast gas test
703:50:42:600PMTestOkFast gas test

System Availability
Jun 18 2012 02:09:05:713PM
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
CECEno Jan 6 2012 03:48:47:060PM Anne WhiteCorrelation ECEwhitea
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 HybridnoLH is now safe for manned entry into machine. Positioner locked and tagged off. Switches locked in dummy load position.Mar 2 2012 02:34:28:943PM (dterry)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-alphayesMidplane Lyman-a. New B-PORT Lyman (BPLY) still being debugged.Apr 20 2012 10:44:00:540AM (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
McPhersonno McPherson viewing the 10-14 nm region for molybdenum monitoring. It's days are numbered as LoWEUS has demonstrated superiority.Apr 20 2012 10:44:10:937AM (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.May 1 2012 08:31:33:743AM (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 StationnoSSS is up to air, no safety issues.Feb 27 2012 01:51:48:783PM (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 one 50Hz laser, precise density calibration still required.May 9 2012 03:12:32:050PM (jwhughes)Jerry HughesCore Thomson scatteringjrwalk,jwhughes,yma
TS - EdgeyesOperating with one 50Hz laser, precise density calibration still required.May 9 2012 03:12:51:363PM (jwhughes)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

Jun 18 2012 03:32:33:950PM
Brightness Calibration
Filters out
photonSetup.pro
Number of Frames: 40
Length of Frames: 50 msec
Time to Start: 0.00 sec

check focus on B1/B9/B18

730 background
731 A1 A7 A13 0.2207e-6A
732 A2 A8 A14 0.2208e-6A
733 A3 A9 A15 0.2208e-6A
734 A4 A10 A16 0.2208e-6A
735 A5 A11 A17 0.2208e-6A
736 A6 A12 A18 0.2209e-6A

737 B1 B7 B13 0.2209e-6A
738 B2 B8 B14 0.2208e-6A
739 B3 B9 B15 0.2209e-6A
740 B4 B10 B16 0.2209e-6A
741 B5 B11 B17 0.2209e-6A
742 B6 B12 B18 0.2209e-6A

743 C1 C7 C13 0.2209e-6A
744 C2 C8 C14 0.2209e-6A
745 C3 C9 C15 0.2209e-6A
746 C4 C10 C16 0.2209e-6A
747 C5 C11 C17 0.2209e-6A
748 C6 C12 C18 0.2209e-6A

Hexfiber transmissions
Photon2, B9
749 patch fiber #58->B9 48k
750 Hex fiber #3->patch fiber #58->B9 40'150 counts
751 Hex fiber #4->patch fiber #58->B9 39'500 counts
752 Hex fiber #5->patch fiber #58->B9 33'000 counts
Photon1, B9
753 Hex fiber #7->patch fiber #58->B9
754 Hex fiber #8->patch fiber #58->B9
755 Hex fiber #9->patch fiber #58->B9
756 patch fiber #58->B9

hexfiber transm values: 0.805967 0.817323 0.696958 0.745617 0.743875 0.736635


past one (0604) : 0.798868 0.768099 0.692301 0.768041 0.777338 0.812489