Miniproposals

Miniproposal: 355 Date Filed: 11/12/2003 Title: ICRF Testing & Conditioning First Author: Steve Wukitch Session Leader: Steve Wukitch (shots 1-16)

Engineering Operator Run Comment

MP355 - ICRF testing and conditoning Session leaders: S. Wukitch/Y. Lin

Session Leader Plans

Entered: Jul 22 2009 10:49:29:760PM

Author: Steve Wukitch

1. Using standard discharge developed Friday (1090722007 or 1090717029 is a good example except nl04 needs to be increased from 0.6 to 0.7), we will begin J antenna operation. We will run J separate from D and E antennas and begin with low power pulses. After evaluating the state of J antenna from an operational standpoint, we will seek to increase the power to 2 MW. 2. Discharge target is 1 MA, 5.4 T with moderate shaping and 1 cm outer gap. If time permits we will change plasma current and density to condition the antenna and other surfaces.

Physics Operators Plans

Entered: Jul 22 2009 03:30:02:797PM

Author: Ron Parker

Engineering setup for Wednesday 2009/07/23 MP355 - ICRF testing and conditoning Session leaders: S. Wukitch/Y. Lin Physics operator: R. Parker Standard overnight ECDC (begin after Matt finishes calibrating foil bolometers) and 60 C bake Run will start at 09:00 and end at 17:00. Power systems as on 1090717029 (Bt=5.4T, Ip=0.9 MA, nl04=0.9-1e20 m-2) A-coil configuration: +Dtop -Dbot -Jtop +Jbot; Enabled (standard configuration) Gas Setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) leave NINJA as is DISABLED Enable the following gate valves and shutters, assuming no vacuum problems: ECE, Z-bolo Torvac setup: keep gate valves open during PULSE Specific diagnostics: magnetics, ECE, TCI ------------------------------------------------------------------------------ ICRF Setup: D, E, J run on at 8:00 LH Setup: no DNB: no Cryopump: no ------------------------------------------------------------------------------ Run plan: See SL Plan

Session Leader Summaries

Entered: Jul 24 2009 01:08:41:827PM

Author: Steve Wukitch

We had a number of difficulties but made progress on correcting a few of them. PG3 was tested and found to be faulty but was corrected and installed on #010. An alternator vibration fault was indicated on shots#003-6. These were warnings from the housing (located above coupling of alternator to flywheel) vibration monitor and this warning level was raised. We had a few J conditioning pulses before a PLC issue caused FMIT#3 to go to run-off mid pulse. This eventually caused us to scrub the run.

Physics Operator Summaries

Entered: Jul 23 2009 04:40:42:887PM

Author: Ron Parker

A lot of problems today: 1. The main gas valve's pulse width modulator did not work at the beginning of the run. The problem was found to be one or more bad connections in a PCB. These were repaired by Bill Burke and normal feedback control of the plasma density became possible beginning with shot 12. 2. There was a failure of the UPS in the power room. It was reset and the problem did not recur. 3. PLC control of the alternator was lost. The problem was fixed and did not recur. 4. High levels of vibration occurred in the housing near the coupling in the alternator. This caused several aborted shots, since the vibrations increased to the alarm level when the alternator was excited. The problem was fixed by inserting a wedge between the alternator bearing supports and the coupling housing (see Power Systems). 5. A ground fault indication came up from the power room. Upon inspection, no fault current was detected and the ground fault indication did not recur. 6. The was a data system failure, which was quickly resolved and did not recur. 7. Finally, there was a failure of an RF PLC. This occurred around 3:00 and after trouble shooting it was determined that it was not fixable in the remaining run time -- thus the run was terminated at 4:15. In spite of all of these problems, the machine ran well when it was possible to run plasma shots. Scorecard: 16 shot count downs, 10 aborted due to above technical problems, 6 powered plasma attempts. All plasmas started up well, 5 went full length (including long ramp-downs), one disrupted at 1.23 s

Session Leader Comments
Jul 23 2009 09:50:42:050AM	1090723001	Steve Wukitch	no power - PG3 test
Jul 23 2009 09:52:09:703AM	1090723002	Steve Wukitch	no power - gas test
Jul 23 2009 10:24:19:237AM	1090723003	Steve Wukitch	no power - alternator fault indication vibration alarm - engineers are investigating
Jul 23 2009 10:25:18:767AM	1090723004	Steve Wukitch	no power - lost PLC control
Jul 23 2009 10:35:19:953AM	1090723005	Steve Wukitch	abort - no power - Alternator fault engineers still analyzing
Jul 23 2009 11:23:10:580AM	1090723006	Steve Wukitch	abort - no power - Alternator fault - PLC inhibit
Jul 23 2009 11:33:28:440AM	1090723007	Steve Wukitch	plasma - J faulted out and had wrong phase H-modes with D and E need to improve the density abit
Jul 23 2009 11:46:14:407AM	1090723008	Steve Wukitch	plasma - density is too low J is still off D and E improved.
Jul 23 2009 12:04:14:970PM	1090723009	Steve Wukitch	plasma - density is still low J phase and match are better - some power - increase pulse length D and E are good TF fast ground fault - check fuses replace PG3 control board - need to do gas test on next shot
Jul 23 2009 12:18:21:237PM	1090723010	Steve Wukitch	gas test - PG3 is working - set up for real shot
Jul 23 2009 12:37:53:140PM	1090723011	Steve Wukitch	no power - data system fault
Jul 23 2009 12:53:50:837PM	1090723012	Steve Wukitch	plasma - good shot J improved - raise power for next shot D and E are good repeat with higher J antenna power (1 MW)
Jul 23 2009 01:41:25:513PM	1090723014	Steve Wukitch	plasma - J antenna is faulting ~ 1 MW D and E are fine Repeat - hopefully J improves
Jul 23 2009 02:08:16:667PM	1090723015	Steve Wukitch	plasma - J did not improve - problem on FMIT#3 fault J antenna is faulting ~ 1 MW PLC issue on FMIT#3 so we will replace the module cause a 20-30 minute delay
Jul 23 2009 02:45:30:903PM	1090723016	Steve Wukitch	plasma - disruption PLC problem with FMIT#3 will cause a delay (likely 30 minutes or more)

Physics Operator Comments
Jul 23 2009 09:01:16:393AM	1090723001	Ron Parker	Run will be delayed this morning due to problems with PG 3. The first shot was a no power shot to test the valve which had been "fixed" last night. However, PG 3 did not open so Willy and Steve are trouble shooting.
Jul 23 2009 09:12:32:393AM	1090723002	Ron Parker	Shot 2 was a PG 3 test -- problem has not been fixed so we'll have to run without density feedback.
Jul 23 2009 09:23:04:640AM	1090723002	Ron Parker	New problem, UPS in power room has failed. Entry into power room.
Jul 23 2009 09:56:15:610AM	1090723003	Ron Parker	Attempt for plasma on shot 3 was aborted due to flashing red indication from alternator. This was followed by a no power shot.
Jul 23 2009 10:16:32:330AM	1090723004	Ron Parker	Setting up for a shot, which may or may not go through.
Jul 23 2009 10:18:59:610AM	1090723004	Ron Parker	Shot was aborted, followed by no power shot.
Jul 23 2009 10:26:08:190AM	1090723004	Ron Parker	Now we've lost PLC control of the alternator -- time to ask what else can go wrong today, but that would be tempting fate.
Jul 23 2009 10:31:55:877AM	1090723004	Ron Parker	Trying again for plasma on shot 5.
Jul 23 2009 10:35:15:127AM	1090723005	Ron Parker	No shot again. No power shot coming up.
Jul 23 2009 10:48:24:860AM	1090723006	Ron Parker	trying again....
Jul 23 2009 11:00:59:470AM	1090723006	Ron Parker	Shot didn't go -- no power shot Problem is alternator vibration indication inhibits shot.
Jul 23 2009 11:17:01:080AM	1090723006	Ron Parker	Try again, for real!
Jul 23 2009 11:46:34:767AM	1090723007	Ron Parker	Wunderbar! Ein schoen guter schuss!
Jul 23 2009 11:38:12:813AM	1090723008	Ron Parker	Another good shot, we're on a roll Power room access for ICRF.
Jul 23 2009 12:05:50:657PM	1090723009	Ron Parker	A fault came up from power room (TF fast ground fault), so there's a power room entry. Meanwhile, Bill Burke believes that the pulse width modulation board for PG3 is fixed, so there is a cell entry to insert it. We'll have to have a no-power shot to test it.
Jul 23 2009 12:09:41:923PM	1090723009	Ron Parker	No current indicated in TF ground fault, so we'll proceed with shots after the test of the PG systems.
Jul 23 2009 12:16:54:330PM	1090723010	Ron Parker	Success with PG 3 (B-side main). We'll proceed with plasma shots.
Jul 23 2009 12:24:02:407PM	1090723010	Ron Parker	Gas feedback = 8, derivative gain = 3 for entire shot
Jul 23 2009 12:26:33:877PM	1090723011	Ron Parker	Shot aborted due to data system failure. This will become a no power shot
Jul 23 2009 12:53:57:227PM	1090723012	Ron Parker	Shot 12 ran well. Density nL04 ran up to 0.8e20 but was programmed for 0.7e20.
Jul 23 2009 01:04:44:337PM	1090723013	Ron Parker	Shot 13 aborted due to alternator problem. This will be followed by a no-power shot.
Jul 23 2009 01:18:27:200PM	1090723013	Ron Parker	There is a delay while the vibration problem is being looked into.
Jul 23 2009 01:29:12:870PM	1090723014	Ron Parker	Shot 14 ran well.
Jul 23 2009 02:09:57:230PM	1090723015	Ron Parker	Shot 15 ran well.
Jul 23 2009 03:19:04:230PM	1090723016	Ron Parker	Shot 16 started up well, but disrupted at 1.23 s. Problems now with RF PLC, causing another delay.
Jul 23 2009 04:14:36:717PM	1090723016	Ron Parker	Unfortunately, the RF PLC problem cannot be fixed before the scheduled end of the run. Therefore the run will terminate.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:53:00:453AM	Test	Ok
2	09:10:05:440AM	Test	Ok
3	09:52:05:987AM	Plasma	Bad	Alt vibration
4	10:15:55:610AM	Plasma	Bad	Alt plc
5	10:32:29:610AM	Plasma	Bad	Alt vibration
6	10:48:15:703AM	Plasma	Bad	Alt vibration
7	11:17:11:267AM	Plasma	Ok
8	11:30:47:750AM	Plasma	Ok
9	11:45:45:673AM	Plasma	Ok
10	12:12:01:110PM	Test	Ok	Gas Test
11	12:24:31:080PM	Plasma	Bad	camac fault
12	12:47:48:420PM	Plasma	Ok
13	01:01:54:240PM	Plasma	Bad	Alt Fault
14	01:23:09:997PM	Plasma	Ok
15	01:36:13:997PM	Plasma	Ok
16	02:36:05:637PM	Plasma	Ok

System Availability

Jul 23 2009 08:52:39:080AM

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 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes Most systems collecting data but not calibrated. WB2 and WB1 not attached. Jul 07 2009 01:00PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no Bottle Removed from the Cell, Piezo box on Igloo Removed. System in safe mode for In-Vessel Access May 30 2008 02:25PM (dekow) Jim Irby Boronization dekow,irby CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no Cyopump hardware is not yet reinstalled in the cell. Jul 14 2009 09:21PM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (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 and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no safely disabled; ready to be dismantled May 28 2008 10:22AM (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 power locked & tagged out; gate valve disabled May 28 2008 10:03AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung ECDC no 6/10/09 Magnetron relocated to west wall in cell at H-port. All controls and hardware have been installed but need to be tested prior to full operation. Magnetron Unplugged and Red tagged, PEI breaker red tagged, Safe for In-Vessel Activity Jun 10 2009 02:35PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE yes The lower freq. 16 channels are ready. Still need calibration and signal level adjustments Jul 14 2009 12:15PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes Gauge installed. Problem with controller - signal noisy. Jul 14 2009 09:11PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Operational, but NOT CALIBRATED. Ch 1 seems low, others reasonable. Jun 26 2009 08:25AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Operational, but NOT CALIBRATED Jun 26 2009 08:26AM (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 poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar HEAT no Disconnect switch is open, reg tagged and locked. Shunt Trip Breaker is opened. Safe for in-vessel work. Jun 04 2008 12:24PM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes available for conditioning and testing Jul 21 2009 04:50PM (wukitch) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data but processed data not in tree. WB1-LY not attached. Jul 07 2009 01:01PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson no Pumped down and awaiting good vacuum conditions to allow plasma tests Jul 13 2009 10:08PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. NOT RECALIBRATED Jun 26 2009 11:25AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (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 Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes Operational --- Uncalibrated and needs to be positioned at port Jun 25 2009 05:08PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry PCI no Both HeNe and CO2 lasers have been shutdown. System is safe. May 30 2008 01:58PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (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 Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes Operational ---- ECDC running as required Jun 19 2009 08:06AM (irby) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes As of 7/21/09, all channels are operational (50, 60, 75, 88, 88usb, 88lsb, 110, 140 and 110-140 swept frequency) Jul 21 2009 01:39PM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Sparker yes Sparker now at K-Hor. Set for 100 uA of current. Will up to 200 uA before first plasma Jun 18 2009 01:01PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Midplane channel is operational, but ***uncalibrated*** Jul 14 2009 08:36AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang TS - Edge no Expected availability: week of July 20 Jun 24 2009 01:32PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf XTOMO yes cables attached, DAQ test run, ready for first plasma Jun 17 2009 03:42PM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke