Alcator C-Mod Run 1110321 Information

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Miniproposals

Operators
Session leader(s):
Physics operator(s):David Pace
Engineering operator(s):Bill Cochran

Engineering Operator Run Comment
Power tests to verify normal field polarity.

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Physics Operator Summaries
Entered: Mar 21 2011 02:49:05:330PM
Author: David Pace
The Engineering Team (ET) completed all power supply and operations tests
necessary after bus work. This work was completed entirely by the ET
with a couple button presses by the Physics Operator.

We took two attempts to generate a full length plasma. The first attempt,
shot 16, was aborted due to hard x-ray generation (i.e., XJUMP shutdown).
The second attempt, shot 17, was adjusted by increasing the PG4 puff and
making the I_EF4 current 10 A less negative. Shot 17 ran full length.

Reference startup: 1110321017
- additional increase in PG4 might be helpful (required if cryopump is used)

Session Leader Comments

Physics Operator Comments
Mar 21 2011 10:42:00:667AM1110321001David PaceLoading EFC test using shot 1090618001.

Upon loading reference shot, DPCS produced all of the message windows as
noted by S. Wolfe in logbook posting (HYBRID) from 1110318.

Messages about OFF weights and lack of XJUMP procedure are acknowledged.
Mar 21 2011 11:00:16:953AM1110321004David PaceLoading A-coil test using shot 1090619008.

Upon loading reference shot, DPCS produced all of the message windows as
noted by S. Wolfe in logbook posting (HYBRID) from 1110318.
Mar 21 2011 12:57:50:503PM1110321016David PaceFirst Plasma Attempt

Begin with shot 1110207032, last plasma from typical-direction field,
and then make the following changes,
1) reduce toroidal field to 5.4 T (set I_tf = -149725 A)
2) reduce time width of PG4 puff to 25 ms (account for non-cryopump
operation)

Saved as 1110321400 in /home/pace/pcs_scratch/


Result:
Hard x-ray shutdown.



Mar 21 2011 01:11:34:810PM1110321017David PaceSecond Plasma Attempt

Changes from previous shot,
1) decrease I_EF4 to -1290 A
2) increase PG4 time width to 30 ms

These changes are motivated by thinking that B_z0 was slightly too
negative and that the XJUMP shutdown might be avoided with more
gas in the pre-puff.


Result:
Full length shot.

Engineering Operator Comments
ShotTimeTypeStatusComment
110:42:55:840AMTestOkEFC PLC Test
210:49:11:677AMTestOkEF2U PLC Test
310:56:37:893AMTestOkEF2L PLC Test
411:04:34:580AMTestOkCorrection Coil Test
511:11:40:463AMTestOkEF3 PLC Test
611:18:16:363AMTestOkEF4 PLC Test
711:25:32:050AMTestOkEF1U PLC Test
811:31:53:257AMTestOkEF1L PLC Test
911:38:56:657AMTestOkOH1 PLC Test
1011:45:37:900AMTestOkOH2U PLC Test
1111:51:45:897AMTestOkOH2L PLC Test
1211:59:41:593AMTestOkTF 50kA PLC Test
1312:08:02:340PMTestOkTF 100kA PLC Test
1412:20:58:347PMTestOkTF 150kA PLC Test
1512:35:53:660PMTestOkTF 150kA PLC Test
1612:49:12:310PMPlasmaOk
1701:03:36:603PMPlasmaOk

System Availability
Mar 21 2011 10:42:42:173AM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDnosecured - tagged outJun 02 2008 11:03AM (sears)Joe SnipesActive MHD Antennasears,snipes
BESyesBES system is onlineOct 21 2010 11:33AM (bespam)Bill RowanBeam Emission Spectroscopybespam,liao,rowan
Bolometersyes2pi (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 ReinkeBolometershutch,mlreinke
Boronizationyes Nov 16 2010 02:36PM (dekow)Jim IrbyBoronizationdekow,irby
CNPAyesMultiple channel CNPA availableOct 21 2010 07:11PM (parker)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertornoShut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged.Apr 06 2010 10:51AM (labombard)Brian LaBombardUpper Divertor Cryopumpirby,labombard
CXRSyesWide-view CXRS system is onlineOct 21 2010 11:33AM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,liao,rachmcd,rowan
D Alphayes\ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not availableJul 01 2009 09:45AM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayessystem is aligned; new calibrations (relative brightness and position) not yet implementedJun 29 2010 10:27AM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationyesoperational, but turned offNov 03 2009 04:59PM (granetz)Robert GranetzGas Jetgranetz,whyte
Divertor IRno Mar 06 2007 10:50AM Glen WurdenDivertor IR Digital Videogwurden,terry
Divertor IR Spectroscopyno Mar 06 2007 10:51AM Glen WurdenDivertor IR Spectroscopygwurden,terry
DNBnoin test mode onlyNov 03 2009 05:01PM (granetz)Robert GranetzDiagnostic Neutral Beamdterry,granetz,gung
ECDCyesOperationalJun 26 2010 09:28PM (irby)Jim Irby2.45 GHz, 3 kW, discharge cleaning systemdekow,irby,pfeiffer
FRC-ECEyesAll channels working and calibrated.Oct 27 2010 03:41PM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesGauges are operational.Jun 28 2010 08:02PM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
Glow DischargenoPlugs 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 Irby1 kV, 5 A, glow discharge systemdekow,dterry,irby
GPCyesOperational.Jul 28 2009 04:23PM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels operational. Oct 22 2010 11:46AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPIyesThe 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 TerryGas Puff Imagingterry,zweben
H/Dyesoperating normallyJun 29 2010 10:26AM (marmar)Earl MarmarH/D Ratiomarmar
HEATyes Jun 26 2010 11:19PM (dekow)Gary Dekow - Machine Heaters -burke,dekow
Hirex JryesHirex-Jr has been installedJun 28 2010 03:36PM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesSystem installed and aligned. Inverted Profiles for Ti are available upon request. Vtor profiles still under revision.Dec 17 2010 09:25AM (ypodpaly)John RiceHigh Resolution X-Rayince,rice,ypodpaly
HXRyes32 Channels operationalOct 23 2010 01:41PM (parker)Ron ParkerHard X-Ray Arrayfaust,parker,schmidt
ICRF D-Antennayessystem checked out ok on 11006728. Jun 28 2010 04:57PM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayessystem checked out ok on 1100628Jun 28 2010 04:57PM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayessystem checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin)Steve WukitchJ-port antennawukitch,ylin
Laser Blow-Offyesoperational and testedJul 20 2010 04:42PM (g)Martin GreenwaldImpurity Injection Systemg,nthoward
Lower HybridyesLH working. New directional couplers installed at input to each klystron.Oct 21 2010 11:42AM (dterry)Ron ParkerLower Hybriddterry,parker,wallaceg
Lower Hybrid Reflectometeryes50GHz: up-, 60 GHz up- and down-Oct 21 2010 11:31AM (sgbaek)Arturo DominguezLower Hybrid Reflectometerdominguez,marmar,parker,sgbaek
Lower Hybrid SOL reflectometeryesprofiles and fluctuations both working. If requested, please request LH launcher to be moved in.Jan 18 2011 03:07PM (cornwall)Cornwall LauLower Hybrid SOL reflectometercornwall,wukitch,ylin
LPInoBeam line removedMay 30 2008 02:09PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphanoWB4LY 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 ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesSpectra 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 TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Oct 22 2010 11:46AM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyesGauges are operationalJun 28 2010 08:02PM (labombard)Brian LaBombardBaratron pressure gaugeslabombard
MLPnoSystem 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 LaBombardMirror Langmuir Probe Electronics Systemlabombard
MSEnoAs of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB.Jun 10 2009 10:34AM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesAll systems are on and functionalJun 29 2010 12:56PM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesPMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03Jun 26 2010 09:21PM (irby)Jim IrbyX-Ray/Neutron Detectors at K-Horirby
NINJAnoCapillaries tested in-vessel.Jun 28 2010 08:08PM (labombard)Brian LaBombardNINJA gas pufflabombard,terry
PCIyesOperational. AM 47.92 MHz.Mar 16 2011 08:24AM (ntsujii)Miklos PorkolabPhase Contrast Imagingemd,ennever,ntsujii,porkolab
Penning GaugesnoHigh voltage power supplies are turned off, waiting for work at A-port horizontal to be finished.Jun 28 2010 08:07PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational.Jul 01 2009 09:46AM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoSafe for Machine EntrySep 14 2007 12:17PM (irby)Jim IrbyC-Mod Polarimeterirby
Power - Alternator Air Switchyes Jun 26 2010 11:19PM (dekow)Gary Dekowfeeds all the other suppliescochran,dekow,dterry,irby
Power - PEIyes Jun 26 2010 11:19PM (dekow)Gary DekowPEI Systemcochran,dekow,dterry,irby
Power - TMXyes Jun 26 2010 11:19PM (dekow)Gary DekowEf2s,. EFCs and A-Coilsbyford,cochran,dekow,dterry,irby
Power Systemsyes Jun 26 2010 11:20PM (dekow)Jim IrbyC-Mod Magnet Suppliesbyford,cochran,dekow,dterry,irby
Probe Array - ISDyesOperational.Jun 28 2010 08:03PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesOperational.Jun 28 2010 08:03PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesF and J outer divertor probes are operational.Jun 28 2010 08:04PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyesOperational, except probe#13Jun 28 2010 08:04PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
Reflectometerno1110216000 all waveguides disconnected to protect mixersFeb 16 2011 08:21AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesOperational. New Langmuir-Mach probe head installed.Jun 28 2010 08:05PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesOperational.Jun 28 2010 08:05PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesBoth A and K units are operational. Coil polarity needs to be checked.Jun 28 2010 08:06PM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
SparkeryesHV supply on, cable run to sparker at k-horJun 23 2010 02:41PM (irby)Jim IrbyField Emission Preionization for C-Moddekow,irby,parkin
Surface Science StationyesSSS installed and leak tested.Oct 21 2010 11:31AM (ochoukov)Bruce LipschultzRadially scanning probe located on K-portblip,ochoukov
TCIyesNo new CO2 detector, so still missing edge channelsJun 23 2010 02:40PM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - CoreyesOperating with 2 lasersOct 22 2010 01:06PM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes,yma
TS - EdgeyesOperationalJul 14 2010 11:54AM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes,yma
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58AM (agraf)Alex GrafVisible Spectrometeragraf
XEUSyesRaw spectra stored but not line brightness time histories are going into the tree yet.Jan 20 2011 10:45AM (mlreinke)Matt ReinkeX-ray Extended Ultraviolet Spectrometermlreinke
XTOMOyesCore system working. Edge system waiting for H-modes.Jul 01 2010 11:55AM (mlreinke)Bob GranetzX-Ray Tomographygranetz,mlreinke