Miniproposals

Miniproposal: 568 Date Filed: 8/10/2009 Title: Plasma Performance Evaluation with Boron coated Molybdenum Tiles First Author: Steve Wukitch Session Leader: Steve Wukitch (shots 1-27)

Engineering Operator Run Comment

automatically entered by signon - please replace with real comment

Session Leader Plans

Entered: Aug 24 2009 08:43:45:243AM

Author: Steve Wukitch

Establish standard discharge at 5.4 T, IP =1 MA, nl04~1. We have had difficulty with normal strike point discharges like 1090811003. We will step the power up to investigate if W is still a problem. If it is problematic, we will move to the elevated strike point discharges (similar to 1090821035) with right gap ~1.0 cm, elongation ~1.6, upper and lower triangularity 0.3 and 0.55. If reasonably steady EDAs are not obtained, we will lower the plasma current to 0.9 MA and will lower it until reasonable EDAs are obtained. Run the ICRF power at 3 MW from 0.7 to 1.1 sec and increase to 4 MW from 1.1 to 1.5 sec. If plasma performance is maintained in excess of 50 MJ (30 discharges) increase RF power 5 MW. Monitor stored energy, H89, Prad, B and Mo.

Physics Operators Plans

Entered: Aug 24 2009 08:38:26:773AM

Author: Earl Marmar

MP568 - Plasma performance evaluation with boron-coated molybdenum tiles SL: Wukitch PO: Marmar Run begins at 09:00 and ends at 17:00 Power systems as on: 10908110028 Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled 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) fill NINJA with 10 psi D2 DISABLED Enable gatevalves and shutters: ECE, VUV, Z-bolo Torvac gatevalve toggle (yes/no): no Boronization(yes/no): yes (completed on Saturday morning) ECDC (yes/no): Following boronization, there were 2 hours in He and 3 hours in D2, completed on Saturday ICRF(yes/no): yes LH(yes/no): no DNB(yes/no): no Cryopump (yes/no): no Machine was kept at 35 degrees C during boronization and through the weekend. Start from 1090811003 ("normal" outer strike point on the W tiles); ramp the RF power up slowly, monitoring W, disruptivity, radiated power, etc. If there are problems, we will move the strike point above the W tiles.

Session Leader Summaries

Entered: Aug 24 2009 05:23:05:340PM

Author: Steve Wukitch

Run Summary Plasma performance was much improved over 1090811 and 1090812. We had several 200 kJ, 1 MA plasmas with 4 MW ICRF injected. The performance degraded with ~15 MJ of ICRF power or about 8-10 shots. These discharges were afflicted by injections of either Mo, W, or Ti/Ni/Cu, and one discharge was impacted by a lower Z flake, maybe Zr with typical strike point. With the strike point raised, discharge performance was often interrupted by injections usually Ti/Ni/Cu. With 4 MW and J limited to <1.5 MW, injections were controlled and plasma performance was reasonable (25,26). Comparing 026 to earlier discharges, the H-ITER-89 is not terribly degraded 1.5-1.6 versus 1.6-1.7. Prior to 025 and 026, one might argue the boronization eroded quickly but 025 and 026 were decent performers. Just need to figure out how to get more power from J with the raised strike point.

Physics Operator Summaries

Entered: Aug 24 2009 06:15:38:090PM

Author: Earl Marmar

This was a good run. The boronization seems to have been quite effective, with steady state Mo levels low at high power ICRF. An interesting aspect of the boronization, in addition to returning to settings from some years back, using higher fill, pulsing ECRF, and no poloidal field currents, was that it was completed over Friday night/Saturday morning, followed by ECDC in He and then D_2. Over the rest of the weekend, the machine was kept at 35 C, with no ECDC. Runaways were generally not a problem, and the startup was robust with relatively high D_2 prefill pressures. This behavior is quite different from the usual, when right after an overnight boronization fill pressures need to be quite low, and fizzles have often been a problem. I fiddled with the fill pressures a bit, lowering it after disruptions, and then raising it again after a full length shot. The programming for fields in segment 1 was not changed all day. There were no fizzles or duds today. There were some Mo injections in early shots that caused trouble, and somewhat later in the run, W injections. Moving the strike point above the row of W tiles alleviated that problem, but was replaced by injections from the J-port faraday screen (Ti, Ni, Cu). We tried changing density, plasma current, and gaps. Decreasing the outer gap, while also increasing the inner gap, appeared to delay the faraday screen injections, but did not eliminate them. Trading off some J power for D+E was effective in eliminating the faraday screen injections on some shots. The last shot was at 1.2 MA, right gap ~ 1.2 cm, left gap ~ 1.8 cm. While the x-point was still raised compared to the beginning of the day, this shot had, according to efit, outer strike point almost exactly in the middle of the third tile up from the bottom (the W row). The ramped tile thermocouples confirm this as the location of maximum heat deposition averaged over the shot. In spite of this, there was no strong evidence for W influx with 3 MW ICRF. We have an interesting comparison of H-mode thresholds as a function of x-point height. As was seen on 1090821, raising the X/strike locations leads to a significantly increased power threshold (shots 18 and 19 make a good pair to see this). On shots 3 and 4 we had faults from the OH force real-time interlock, which took out the supplies just after 0.2 seconds. Moving the EF1 crow bar time to 0.2 s (from 0.12 s) appeared to resolve this problem, which did not recur. After shot 18, an air leak opened up, reaching about 3e-5T on IGT, and causing about a 1 hour delay. There were no obvious deleterious effects on subsequent operation, except that the TF cooling was throttled back, and average time between shots increased as a result. scorecard: Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result | 01 0.958 1.048 Plasma | 02 0.625 0.829 Plasma | | 03 0.257 0.794 Plasma | 04 0.269 0.848 Plasma | | 05 1.958 1.033 Plasma | 06 1.956 1.036 Plasma | | 07 1.964 1.032 Plasma | 08 1.956 1.033 Plasma | | 09 1.434 1.050 Plasma | 10 1.971 1.037 Plasma | | 11 1.959 1.036 Plasma | 12 1.965 1.037 Plasma | | 13 1.955 1.021 Plasma | 14 0.882 1.032 Plasma | | 15 1.965 1.024 Plasma | 16 1.959 1.027 Plasma | | 17 1.229 1.030 Plasma | 18 1.974 0.872 Plasma | | 19 1.981 0.897 Plasma | 20 1.953 1.024 Plasma | | 21 1.956 1.025 Plasma | 22 1.955 0.947 Plasma | | 23 1.964 0.947 Plasma | 24 1.957 0.947 Plasma | | 25 1.962 0.949 Plasma | 26 1.964 0.950 Plasma | | 27 1.528 1.226 Plasma% Compiled module: MDSGETMSG. 27 shot cycles. 27 plasmas. 0 fizzles. 0 duds. 0 System Error. (Plasma = Ip gt 60.0 kA Dud = H_alpha lt 0.40 V) Total plasma duration: 44.46 s (exceeding -104 kA)

Session Leader Comments
Aug 24 2009 09:17:29:650AM	1090824001	Steve Wukitch	Disruption @0.95 little RF power, only E fired J3 HV was off for some reason which also takes out J4 D was in manual so it received no gate the good news is that it was not a W brick the bad news is that it was Mo lower Ip to 0.8 and nl04 to 0.8
Aug 24 2009 09:24:49:310AM	1090824002	Steve Wukitch	early disruption just after 0.6 s punt - raise strike point like 1090821035
Aug 24 2009 10:07:10:687AM	1090824003	Steve Wukitch	early disruption - pause to figure out why
Aug 24 2009 10:40:43:433AM	1090824004	Steve Wukitch	early disruption
Aug 24 2009 11:14:42:150AM	1090824005	Steve Wukitch	plasma with typical strike point ohmic next shot add ICRF after 1 sec
Aug 24 2009 11:32:46:890AM	1090824006	Steve Wukitch	plasma - EDA like till big Mo injection repeat hopefully without injection
Aug 24 2009 11:47:23:677AM	1090824007	Steve Wukitch	plasma - EDA like another Mo injection stored energy was climbing ~160 kJ for 3 MW (180 is target) next shot: move RF earlier to 0.8 s
Aug 24 2009 11:58:23:260AM	1090824008	Steve Wukitch	plasma - EDA like another Mo injection after D and E trip stored energy was climbing ~175 kJ for 3 MW (180 is target) next shot: move RF earlier to 0.7 s sweep strike point down
Aug 24 2009 12:07:06:890PM	1090824009	Steve Wukitch	plasma nice EDA H-mode till double injection 180+ kJ for 3 MW and 195 kJ for 4 MW move RF end to 1.3 s to avoid injection (unlikely but worth a shot)
Aug 24 2009 12:25:27:880PM	1090824010	Steve Wukitch	plasma injection kills first H-mode but second H-mode quickly gets to ~200 kJ @4MW repeat - see when the boronization erodes
Aug 24 2009 12:33:29:930PM	1090824011	Steve Wukitch	plasma injection at end of H-mode ~200 kJ at 4 MW increase power to 5 MW at end of pulse
Aug 24 2009 12:50:28:763PM	1090824012	Steve Wukitch	plasma good 3 MW and 4 MW before injection retry- if injection continues we will pull back on the power
Aug 24 2009 12:59:46:550PM	1090824013	Steve Wukitch	plasma injection stunts performance lower power
Aug 24 2009 01:15:46:273PM	1090824014	Steve Wukitch	plasma - disruption at 0.88 s injection kills performance at 0.82 s next: lower power at start of RF pulse then step to 4 MW
Aug 24 2009 01:29:01:340PM	1090824015	Steve Wukitch	plasma suspect H-mode performance is fading next: 3 MW steady RF
Aug 24 2009 01:42:30:783PM	1090824016	Steve Wukitch	plasma no longer suspicious, H-mode performance has faded next: 4 MW steady RF
Aug 24 2009 01:58:27:947PM	1090824017	Steve Wukitch	plasma ouch that hurt next: lower plasma current 0.8 MA, density to 0.8, and step from 1 MW to 4 MW
Aug 24 2009 02:30:27:367PM	1090824018	Steve Wukitch	plasma decent EDA till nasty injection killed it W is back air leak has developed next shot: raise strike point throughout the discharge
Aug 24 2009 03:15:04:850PM	1090824019	Steve Wukitch	plasma D antenna match was off Ti injection from J as strike point is raised next shot: 1 MA discharge
Aug 24 2009 03:18:38:697PM	1090824019	Steve Wukitch	plasma D antenna match was off Ti injection from J as strike point is raised next shot: 1 MA discharge
Aug 24 2009 03:31:09:060PM	1090824020	Steve Wukitch	plasma L-mode demonstration that the H-mode threshold goes up with raising the strike point next shot: lower density to 0.9
Aug 24 2009 03:48:19:257PM	1090824021	Steve Wukitch	plasma another set of Ti injections lower Ip to 0.9 MA
Aug 24 2009 03:56:24:197PM	1090824022	Steve Wukitch	plasma free of injections repeat with improved match on J antenna
Aug 24 2009 04:15:47:360PM	1090824023	Steve Wukitch	plasma similar to 022 but with Ti/Ni/Cu injection late next: shrink outer gap and increase inner gap
Aug 24 2009 04:43:52:447PM	1090824024	Steve Wukitch	plasma outer gap was ~1.3 cm response was similar to 023 with a late Ti/Ni/Cu next: trade off power from J to D&E
Aug 24 2009 04:45:11:057PM	1090824025	Steve Wukitch	plasma with decent performance no injection next: lengthen ICRF 3 MW and 4 MW pulse
Aug 24 2009 05:02:05:830PM	1090824026	Steve Wukitch	plasma reasonable shot from confinement/impurities perspective next: raise plasma current to 1.2 MA
Aug 24 2009 05:15:57:773PM	1090824027	Steve Wukitch	plasma RF is ugly - mismatched RF end of run

Physics Operator Comments
Aug 24 2009 09:11:35:103AM	1090824001	Earl Marmar	load from 1090811003 (LSN with "normal" outer strike point on the W tiles, 1 MA, nl04=1e20) import segment 1 from 1090820004 (deuterium prefill startup) plasma large Prad increase when Prf gets to 0.5 MA Matt reports large Mo, no W
Aug 24 2009 09:33:19:550AM	1090824002	Earl Marmar	Ip to 0.8 MA nl_04 to 0.8e20 prefill puff to 16 ms (from 20 ms) plasma disrupts before the RF, again preceded by rapid Prad increase
Aug 24 2009 10:36:16:917AM	1090824003	Earl Marmar	import segment 2 from 1090821035 (raised strike point) Ip to 0.8 MA nl_04 to 0.8e20 prefill puff to 18 ms (from 16 ms) early disruption supplies taken out by the OH force circuit
Aug 24 2009 10:53:58:940AM	1090824004	Earl Marmar	reload shot 1 no RF plasma early disruption same OH force problem
Aug 24 2009 11:13:45:447AM	1090824005	Earl Marmar	EF1 crow bars to 0.2 s (from 0.12 s) tweak the early segment 2 Ip programming to match the current we're getting at 0.1 s plasma (no RF) ramps almost all the way down (~100 kA) lots of early hards
Aug 24 2009 11:14:09:290AM	1090824006	Earl Marmar	prefill puff to 23 ms (from 20 ms) add RF starting at 1 s
Aug 24 2009 12:09:41:797PM	1090824009	Earl Marmar	tweak ZXL after 1.3 s, try to keep strike on second tile up from bottom plasma good RF, steady EDA at 3 MW, >180 kJ, 4 MW, R_neuts = 1.15e14/s, then H to L, disrupt at 1.43 s
Aug 24 2009 12:27:17:083PM	1090824010	Earl Marmar	reduce prefill puff to 21 ms (from 23 ms) undo the ZXL tweak from the previous shot (9) plasma, full length excellent RF, EDA H-Mode, 4 MW, H89~1.7, H98~0.95, Wtot~195kJ, R_neut = 1.14e14/s
Aug 24 2009 12:50:16:360PM	1090824011	Earl Marmar	increase prefill puff to 24 ms (from 21 ms) plasma, full length one good steady EDA H-mode
Aug 24 2009 12:49:41:577PM	1090824012	Earl Marmar	no DPCS changes plasma, full length good at 4 MW, brief 5 MW, but the good H-mode was gone by then
Aug 24 2009 01:01:10:830PM	1090824013	Earl Marmar	no DPCS changes plasma, full length not quite as good, injection comes shortly after rampup to 4 MW, significant bite out of the current
Aug 24 2009 01:15:47:103PM	1090824014	Earl Marmar	no DPCS changes plasma big increase in Prad, disrupts, early in the RF (0.88 s)
Aug 24 2009 01:29:16:030PM	1090824015	Earl Marmar	reduce prefill puff to 22 ms (from 24 ms) plasma, full length
Aug 24 2009 02:04:01:153PM	1090824016	Earl Marmar	prefill puff to 24 ms (from 22 ms) plasma full length
Aug 24 2009 02:05:14:137PM	1090824017	Earl Marmar	no dpcs changes plasma, disrupt at 1.22 s
Aug 24 2009 02:38:52:510PM	1090824018	Earl Marmar	prefill puff to 21 ms (from 24 ms) Ip to 0.8 MA nl_04 to 0.8e20 plasma, full length
Aug 24 2009 03:18:39:260PM	1090824019	Earl Marmar	raise ZXL by 2 cm plasma, full length
Aug 24 2009 03:27:45:263PM	1090824020	Earl Marmar	prefill puff to 24 ms (from 21 ms) Ip to 1.0 MA nl_04 to 1e20 plasma, full length L-mode, up to 2.2 MW ICRF
Aug 24 2009 03:37:35:440PM	1090824021	Earl Marmar	nl_04 target to 9e19 plasma to rampdown 150 kJ at 3 MW, then large increase in Prad
Aug 24 2009 03:54:59:040PM	1090824022	Earl Marmar	Ip to 0.9 MA plasmam full length takes 3 MW to get into H-mode, but decent once it transitions; H98~0.9
Aug 24 2009 04:11:58:467PM	1090824023	Earl Marmar	no DPCS changes plasma decent EDA H-mode after 1 second, until antenna impurities come in.
Aug 24 2009 04:45:42:463PM	1090824024	Earl Marmar	increase clearin 5 mm increase rcur 5 mm plasma, full length
Aug 24 2009 04:45:22:493PM	1090824025	Earl Marmar	no DPCS changes plasma, full length good EDA H-mode, low Prad
Aug 24 2009 04:55:18:500PM	1090824026	Earl Marmar	no DPCS changes plasma, full length 2 good H-modes, with strong Prad in between
Aug 24 2009 05:33:23:670PM	1090824027	Earl Marmar	Ip to 1.2 MA nl_04 target to 1.0e20 plasma with the gap and Ip changes, the strike point is now squarely on the middle of the tungsten tiles for most of the shot. semi EDA/ELM-free H-modes, middle one not too bad RF is trippy disrupts at end of flat-top.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:01:31:100AM	Plasma	Ok
2	09:16:38:840AM	Plasma	Ok
3	09:32:40:627AM	Plasma	Bad	OH2 Force Board terminated the shot
4	10:35:24:480AM	Plasma	Bad	OH stack force fault
5	11:02:55:553AM	Plasma	Ok
6	11:17:30:027AM	Plasma	Ok
7	11:31:05:657AM	Plasma	Ok
8	11:46:31:070AM	Plasma	Ok
9	11:59:21:777AM	Plasma	Ok
10	12:12:07:377PM	Plasma	Ok
11	12:27:40:413PM	Plasma	Ok
12	12:40:32:667PM	Plasma	Ok
13	12:53:49:923PM	Plasma	Ok
14	01:07:10:537PM	Plasma	Ok
15	01:20:11:807PM	Plasma	Ok
16	01:35:05:843PM	Plasma	Ok
17	01:50:04:570PM	Plasma	Ok
18	02:09:33:653PM	Plasma	Ok
19	03:03:30:677PM	Plasma	Ok
20	03:16:45:853PM	Plasma	Ok
21	03:29:17:967PM	Plasma	Ok
22	03:42:00:173PM	Plasma	Ok
23	03:57:21:447PM	Plasma	Ok
24	04:18:39:783PM	Plasma	Ok
25	04:31:33:507PM	Plasma	Ok
26	04:46:50:387PM	Plasma	Ok
27	05:04:35:910PM	Plasma	Ok

System Availability

Aug 24 2009 09:01:10:257AM

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 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID/LEDGE/DIV foils still need calibrations applied Jul 28 2009 09:59AM (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. Controller repaired. Aug 23 2009 10:36PM (toland) 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. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most channels operational. Jul 28 2009 04:23PM (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 yes Collecting spectra but control system problem is not reporting voltages to tree Jul 28 2009 10:00AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (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 yes System operable. Channel 7 is dead. Aug 21 2009 06:49PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,edlund,ennever,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 Starting on 1090819011 only channels 50, 60, 75, 88lsb and 88usb are available. 110, 140 and the variable frequency channel are out of service. Aug 20 2009 03:54PM (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 2 lasers working. 15 spatial channels operational. Initial (NOT final) Te calibration applied. ***No ne calibration yet*** Aug 05 2009 08:44AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang TS - Edge yes Operational, Te calibration is thought to be good. Density is ***uncalibrated*** Aug 11 2009 02:31PM (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

Aug 24 2009 10:35:46:503PM

cutoffs run 1090812 Ch YAG1 YAG2 P.12 0.97 +/-0.10 1.08 +/-0.10 P.2 1.07 +/-0.09 1.16 +/-0.11 P.7 0.99 +/-0.10/sqrt(3) 1.07 +/-0.10/sqrt(3) P.14 0.95 +/-0.10/sqrt(3) 1.05 +/- 0.13/sqrt(3) P.8 0.96 +/-0.10/sqrt(3) 1.01 +/- 0.10/sqrt(3) P.16 0.75 +/-0.10/sqrt(3) 0.85 +/- 0.10/sqrt(3) P.15 1.04 +/-0.10... 1.23 +/- 0.10... cutoffs run 1090820 (YAG2 only) Averaged results: P.5 1.0 +/- 2.0 P.15 1.154 +/- 0.13/sqrt(7) ***sat, all shots*** P.10 1.0 +/- 2.0 ***sat, all shots*** P.11 1.074 +/- 0.12/sqrt(7) P.7 1.03 +/- 0.13/sqrt(2) ***sat, not all shots*** P.1 1.03 +/- 0.16/sqrt(7) P.3 1.02 +/- 0.15/sqrt(7) P.4 1.03 +/- 0.15/sqrt(7) P.2 1.05 +/- 0.15/sqrt(7) P.12 1.08 +/- 0.15/sqrt(5) P.8 0.99 +/- 0.15/sqrt(5) P.14 1.25 +/- 0.18 P.16 0.90 +/- 0.10/sqrt(3) P.6 1.0 +/- 2.0 P.13 1.0 +/- 2.0