Miniproposals

Engineering Operator Run Comment

BEAM-INTO-GAS ONLY

Session Leader Plans

Entered: Mar 21 2011 08:22:03:947AM

Author: Bill Rowan

MP: CXRS calibration via beam into helium gas. Verify performance of MSE filters. SL: Rowan, Liao PO: Scott Initial setup Reference shot 1100901031. Load helium into B-Top at a pressure of 6 psi. Use at least three fill and purge cycles to remove remnant of previous fill gas. Control the gas using the wave form for PG4 in segment 1. Turn off all power supplies as no fields will be used in this run. Set the fizzle detector past 2.0 s. Set the gate valve to close during the shot. Set the beam for 100 ms on 100 ms off. Note the temporal variation of beam current and voltage and assure that integration time for detector is sufficiently short that times of non-constant beam parameters are acquired but may be left out of the averaging. For the first shot, the pressure will be set in the 10e-5 Torr range (50 ms) as it would be for helium fueling of a plasma shot. This will be a shorter setting for PG4 than is initially loaded. The pressure will be scanned up in coarse increments until 4713 He I line is observable with at least 1000 counts above the detector background. The increments will be determined on the fly during the run. 5 shots. Adjust beam timing and detector synchronization to optimize signal. 1 shot. Repeat for statistics. 3 shots. Scan the helium pressure up by approximately a factor of 5 to document any beam attenuation. Check the scaling of the signal level with pressure. Repeat with different pressures in the event of anomalies. 5-10 shots. Reset the helium pressure in the torus to approximately 2 mT (gas control set to approx 1 s). 3 shots With the pressure in the torus set to approximately 2 mT, measure MSE signal level in spatial channel #2 as a function of filter. Changing the filter is expected to require 5-10 minutes. 10 shots. With the pressure in the torus set to approximately 2 mT, measure the MSE signal level in spatial channel #2 as a function of filter temperature for a single filter. 5 shots

Physics Operators Plans

Entered: Mar 18 2011 08:46:33:237AM

Author: Steve Scott

----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 12:30 Power systems as on: 1100901031 *** NO POWER TODAY. NO FIELDS. BEAM-INTO-GAS ONLY Acoil: +Dtop -Dbot -Jtop +Jbot (OFF) Gas setup: Fill B-Top with 6 psi He Hybrid enabled (PG4) DISABLE gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus z-bolo shutter CLOSED Torvac gatevalve toggle (yes/no): YES Boronization(yes/no): no Overnight ECDC (yes/no): no ICRF(yes/no): no LH(yes/no): no Cryopump (yes/no): no DNB (yes/no): YES Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s Load helium into B-Top at 6 PSI. use at least three fill and purge cycles to remove remnant of previous gas fill. Control gas using waveform for PG4 in segment 1. Set fizzle detector past 2.0 sec. Set gate value to close during the shot. We will start with a very small gas puff, sufficient to get roughly 10^-5 torr. Fire DNB, 100 ms on, 100 ms off. On successive shots, raise torus pressure until CXRS observes about 1000 counts above background. Then raise pressure another factor of 5, to document beam attenuation. Then proceed to 15 shots for MSE, at approximately 1-2 mTorr. There will be about 10 minutes between shots to allow MSE to swap optical filters.

Session Leader Summaries

Entered: Mar 18 2011 06:53:15:440PM

Author: Ken Liao

The purpose of the experiment is to intensity calibrate the CXRS diagnostic for helium impurity measurements, helium fast ion measurments, or helium plasma measurements by observing the emission from the interaction between the beam and helium gas. For these experiments, the beam was fired into a helium filled vacuum vessel. The pressure was varied from approximately 0.1 mT to 6 mT. Useful data was acquired for all channels over at least a subset of the pressure scan range; that is, the most sensitive channels acquired data at all pressures. The least sensitive channels did acquire useful signals for the higher pressures. A channel to channel relative intensity calibration of the channels will result from this experiment.

Physics Operator Summaries

Session Leader Comments
Mar 18 2011 09:45:39:963AM	1110318004	Ken Liao	Shot with 375ms puff shows about 1/2 the intensity of previous, in core channel B11. No obvious beam attenuation. Next shot, got to 1500ms puff
Mar 18 2011 09:52:58:853AM	1110318005	Ken Liao	about 800 counts on B11 (brightest), 70-80 counts on B13 (darkest) Next shot, go to 3000ms puff.
Mar 18 2011 10:08:02:633AM	1110318006	Ken Liao	Beam on wall signal is visibly weaker in wide2. Signal levels on core B11 are about 1400 counts. This is clearly attenuated. Near edge channel B13 peak around 100 counts, also clearly attenuated. Next shot 2s
Mar 18 2011 10:12:42:253AM	1110318007	Ken Liao	2s puff 3s puff signal is about 16% higher than 2s puff signal in B11. next shot 1s He puff.
Mar 18 2011 10:13:22:000AM	1110318008	Ken Liao	1s puff next shot 800ms puff.
Mar 18 2011 10:19:07:660AM	1110318009	Ken Liao	800ms puff next shot 600ms
Mar 18 2011 10:27:02:910AM	1110318010	Ken Liao	600ms shot, last shot for CXRS calibration

Physics Operator Comments
Mar 18 2011 09:08:13:623AM	1110318001	Steve Scott	.
Mar 18 2011 09:19:59:343AM	1110318001	Steve Scott	Gas puff = 50 ms. 0.47 Torr-liter injected. ratiomatic was off (and not calibrated for He).
Mar 18 2011 09:32:46:030AM	1110318002	Steve Scott	Next: repeat. Want measurement of pressure with ratiomatic. 0.5 Torr-liter. ratiomatic = 0.04 mTorr. maximum g_side_mks = 0.22
Mar 18 2011 09:40:53:157AM	1110318003	Steve Scott	DNB: 100 ms on, 100 ms off gas puff: 750 ms (operator error. 75 ms was requested) maximum g_side_mks = 1.6 mTorr.
Mar 18 2011 09:43:33:427AM	1110318004	Steve Scott	This shot will be 375 ms gas puff. Operator error on last shot. maximum g_side_mks = 0.8 mTorr
Mar 18 2011 09:53:02:837AM	1110318005	Steve Scott	1.5 sec. got to 3.0 mTorr on the g_side_mks. dnb reports that we are increasing the dnb tank pressure with this much gas
Mar 18 2011 10:01:42:360AM	1110318006	Steve Scott	gas puff to 3.0 sec (!) got to 5.5 mTorr on g_side_mks
Mar 18 2011 10:10:45:480AM	1110318007	Steve Scott	gas puff = 2.0 sec got to 4.0 mTorr
Mar 18 2011 10:20:05:633AM	1110318008	Steve Scott	Gas puff = 1.0 sec got to 2.1 mTorr
Mar 18 2011 10:27:09:137AM	1110318009	Steve Scott	gas puff = 0.80 sec. 1.7 mTorr maximum on g_side_mks
Mar 18 2011 10:34:50:230AM	1110318010	Steve Scott	gas puff = 0.600 sec 1.25 mTorr.
Mar 18 2011 11:01:33:940AM	1110318011	Steve Scott	Start shots for MSE filter calibration. All shots will have the same gas puff = 0.800 sec starting this shot. short delay due to data system problem got 1.7 mTorr. good DNB. exact repeat of shot 9
Mar 18 2011 11:14:29:030AM	1110318012	Steve Scott	No physOp changes from shot 11. result: good shot. same torus pressure
Mar 18 2011 11:22:57:577AM	1110318013	Steve Scott	No PhysOp changes. result: good shot. same torus pressure.
Mar 18 2011 11:30:54:470AM	1110318014	Steve Scott	no physOp changes. result: good shot. pressure has drifted down a few percent.
Mar 18 2011 11:31:32:980AM	1110318015	Steve Scott	No physOp changes.
Mar 18 2011 11:52:37:833AM	1110318016	Steve Scott	increase duration of gas puff from 0.800 to 0.807 sec result: no dnb.
Mar 18 2011 12:55:10:020PM	1110318017	Steve Scott	increase puff to 0.820 sec no DNB. The DNB breaker has opened. DNB team is investigating. there will be a delay of unknown duration. Probably no operation until at least 2 PM.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:11:43:460AM	Test	Ok
2	09:21:43:623AM	Test	Ok
3	09:30:20:770AM	Test	Ok
4	09:38:50:657AM	Test	Ok
5	09:46:46:203AM	Test	Ok
6	09:59:08:310AM	Test	Ok
7	10:08:09:550AM	Test	Ok
8	10:16:17:447AM	Test	Ok
9	10:24:20:897AM	Test	Ok
10	10:32:18:237AM	Test	Ok
11	10:57:27:357AM	Test	Ok
12	11:08:31:387AM	Test	Ok
13	11:19:54:190AM	Test	Ok
14	11:27:45:403AM	Test	Ok
15	11:37:18:797AM	Test	Ok
16	11:50:18:560AM	Test	Ok
17	12:00:16:180PM	Test	Ok
18	02:25:48:403PM	Test	Ok
19	02:33:51:920PM	Test	Ok
20	02:43:23:353PM	Test	Ok
21	02:51:15:947PM	Test	Ok
22	02:58:13:797PM	Test	Ok
23	03:10:14:123PM	Test	Ok
24	03:18:19:110PM	Test	Ok
25	03:24:09:343PM	Test	Ok
26	03:30:21:063PM	Test	Ok
27	03:44:55:100PM	Test	Ok
28	04:05:36:737PM	Test	Ok
29	04:13:59:750PM	Test	Ok

System Availability

Mar 18 2011 09:11:29:443AM

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 yes BES system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes 2pi (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 Reinke Bolometers hutch,mlreinke Boronization yes   Nov 16 2010 02:36PM (dekow) Jim Irby Boronization dekow,irby CNPA yes Multiple channel CNPA available Oct 21 2010 07:11PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no Shut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged. Apr 06 2010 10:51AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes Wide-view CXRS system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes system is aligned; new calibrations (relative brightness and position) not yet implemented Jun 29 2010 10:27AM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (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 in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung ECDC yes Operational Jun 26 2010 09:28PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE yes All channels working and calibrated. Oct 27 2010 03:41PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauges are operational. Jun 28 2010 08:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no Plugs 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 Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI yes The 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 Terry Gas Puff Imaging terry,zweben H/D yes operating normally Jun 29 2010 10:26AM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Jun 26 2010 11:19PM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36PM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr yes System installed and aligned. Inverted Profiles for Ti are available upon request. Vtor profiles still under revision. Dec 17 2010 09:25AM (ypodpaly) John Rice High Resolution X-Ray ince,rice,ypodpaly HXR yes 32 Channels operational Oct 23 2010 01:41PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna yes system checked out ok on 11006728. Jun 28 2010 04:57PM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes system checked out ok on 1100628 Jun 28 2010 04:57PM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes system checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin) Steve Wukitch J-port antenna wukitch,ylin Laser Blow-Off yes operational and tested Jul 20 2010 04:42PM (g) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid yes LH working. New directional couplers installed at input to each klystron. Oct 21 2010 11:42AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer yes 50GHz: up-, 60 GHz up- and down- Oct 21 2010 11:31AM (sgbaek) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek Lower Hybrid SOL reflectometer yes profiles and fluctuations both working. If requested, please request LH launcher to be moved in. Jan 18 2011 03:07PM (cornwall) Cornwall Lau Lower Hybrid SOL reflectometer cornwall,wukitch,ylin LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha no WB4LY 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 Reinke Lyman alpha cameras labombard,mlreinke McPherson yes Spectra 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 Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes Gauges are operational Jun 28 2010 08:02PM (labombard) Brian LaBombard Baratron pressure gauges labombard MLP no System 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 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 All systems are on and functional Jun 29 2010 12:56PM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes PMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03 Jun 26 2010 09:21PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA no Capillaries tested in-vessel. Jun 28 2010 08:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry PCI yes Operational. AM 47.92 MHz. Mar 16 2011 08:24AM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab Penning Gauges no High voltage power supplies are turned off, waiting for work at A-port horizontal to be finished. Jun 28 2010 08:07PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (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   Jun 26 2010 11:19PM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes   Jun 26 2010 11:19PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Jun 26 2010 11:19PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Jun 26 2010 11:20PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational. Jun 28 2010 08:03PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational. Jun 28 2010 08:03PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes F and J outer divertor probes are operational. Jun 28 2010 08:04PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes Operational, except probe#13 Jun 28 2010 08:04PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer no 1110216000 all waveguides disconnected to protect mixers Feb 16 2011 08:21AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Operational. New Langmuir-Mach probe head installed. Jun 28 2010 08:05PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. Jun 28 2010 08:05PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes Both A and K units are operational. Coil polarity needs to be checked. Jun 28 2010 08:06PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Sparker yes HV supply on, cable run to sparker at k-hor Jun 23 2010 02:41PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station yes SSS installed and leak tested. Oct 21 2010 11:31AM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes No new CO2 detector, so still missing edge channels Jun 23 2010 02:40PM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with 2 lasers Oct 22 2010 01:06PM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma TS - Edge yes Operational Jul 14 2010 11:54AM (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 XEUS yes Raw spectra stored but not line brightness time histories are going into the tree yet. Jan 20 2011 10:45AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer mlreinke XTOMO yes Core system working. Edge system waiting for H-modes. Jul 01 2010 11:55AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke