Miniproposals

Miniproposal: 468 Date Filed: 3/8/2007 Title: LH-driven fast electron diffusion time measurement First Author: Andrea Schmidt Session Leader: Andrea Schmidt (shots 21-27)

Miniproposal: 473 Date Filed: 3/9/2007 Title: Lower Hybrid System Check-out and Initial operation First Author: J. Randall Wilson Session Leader: Greg Wallace (shots 1-11) Session Leader: J. Randall Wilson (shots 12-12) Session Leader: Greg Wallace (shots 13-20)

Engineering Operator Run Comment

MP#473 Lower Hybrid Check-out SL: G Wallace & R Wilson PO: J Snipes

Session Leader Plans

Entered: May 22 2007 04:05:03:720PM

Author: Greg Wallace

Run of Randy's MP473. Plan will be to start with shot 1070426017. We will run at 5T all day. The goal of the day will be to increase power and drive current. Hopefully we will see something on MSE if the DNB is working. We will require ~200ms of flat-top without ICRF before and after the LH pulse to get a good MSE baseline. LH phase shifters will be initially set to 90 degrees co-current-drive direction with the launcher 1.5mm behind the LH limiter. Shot Plan: Start with ~200kW of LH power at 90 degree ideal phasing. Check to make sure the CPS is working correctly and we are not arcing in the waveguides. Increase power to 500kW then 800+kW. We will be looking for clean (no/minimal trips) LH pulses from .8-1.3s. It will require some tweaking to the drive level of the individual klystrons to increase the power level. Repeat the above starting from ~500kW for 60 and 90 degree approximate phasing. Cell Access to change phase shifters to 0 degrees. Run 500ms shots with the first half in co-current-drive and the second half in counter-current-drive, 120 degree phasing in both cases, at the maximum power level we can achieve without too many trips. This should give an n|| spectrum similar to 60 degree ideal phasing, but with a slightly wider spectral peak. We would like to see some changes with MSE between the co- and counter-current-drive segments. We expect that getting the system to run in this configuration will be a bit tricky, especially since we have no experience running higher power in counter-current-drive configuration.

Physics Operators Plans

Entered: May 22 2007 04:09:26:500PM

Author: Joseph Snipes

Physics Operator Plan for Wednesday, May 23, 2007 MP#473 Lower Hybrid Check-out SL: G Wallace & R Wilson PO: J Snipes Engineering Setup ------------------ Overnight ECDC in Deuterium before the run Run begins at 9:00 and ends at 17:00 Power systems as on 1070426017 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) pump out NINJA, then disable. Enable the following gate valves and shutters: ECE, VUV, Z-bolo shutters; DNB gatevalve RF Systems: ---------- LH full power No ICRF for this run Diagnostics: ----------- Need the DNB and MSE to measure q profiles. Run plan: Further check out of the lower hybrid system attempting to go to full power and measure changes in the q profile with MSE using the DNB. Plasma conditions will be 5.5 T, 0.6 to 1 MA, nl04 ~ 1 x 10^20 m^-2.

Session Leader Summaries

Entered: May 23 2007 04:12:05:933PM

Author: Greg Wallace

Summary for the first 2/3 of 1070523: This was a run of MP473, "Lower Hybrid System Checkout and Initial Operation." Started the day with two shots of LH during rampup due to operator error. Some interesting modes (cascades?) were noticed on the magnetics on these shots. Not quite sure what to make of them and I will need to talk to Joe Snipes more about this. Switched LH start time to 800ms. The next few shots had early arcing, then tripped out and retried clean for the rest of the pulse. Dave Gwinn had an idea to turn on for ~20ms, then turn off for 20ms and turn on again to force this "conditioning" phenomenon we observed when the CPS system was left to do its job. I refer to this in the shot entries as a "dropout" as opposed to a CPS induced trip and retry. This worked at lower power levels but did not solve arcing on channels 7, 8, and 9 as we increased power. Generally after a second "CPS trip" they would run clean. Still, we were able to increase power enough to see LH induced H-modes. The LH H-modes reliably occurred around 1.1s into the shot, at which time the LH had been on for approximately .3s (not including time off due to dropout and/or trips). Coupling in the H-mode phase was ~30-35% refco vs ~20-25% during L-mode. An identical shot without LH did not reach H-mode, thus showing that the H-modes were in fact caused by the LH (plus, of course, the ohmic power). NETPOW levels of around 600kW caused these H-modes. Loop voltage drops of ~.2V were seen all day during L-mode operation. Despite density increase during H-mode, the loop voltage dropped another ~.2V during H-mode. This can be attributed to higher temperature, increased single pass absorption, and/or bootstrap current. The run was given over to Andrea at 2:30 for fast electron diffusion measurements.

Entered: May 23 2007 05:08:11:500PM

Author: Andrea Schmidt

We attempted to get LH-modulated data at two conditions with 90 deg LH phasing: - nl04=5e19, Ip=800 kA - nl04=7.5e19, Ip=500 kA We got 4 shots at the first condition (21, 22, 23, 25), although there were several LH trips. We got part of a shot at the second condition (26) before LH faulted.

Physics Operator Summaries

Entered: May 23 2007 05:13:35:910PM

Author: Joseph Snipes

The machine ran well with very few problems until near the end of the run. Then, there was a computer problem that led to a no power test shot on shot 24. The last shot 27 fizzled inexplicably whereas all of the other shots had full length plasmas. A number of interesting results were obtained including clear LH induced H-modes. Shot 16 has a clear LH induced EDA H-mode with a QC mode at 150 kHz. Several other shots also had H-modes though the QC modes were not as clear. There were also some interesting high and low frequency magnetic fluctuations in the first two shots when the LH was injected from 0.02 to 0.1 s by mistake. A few shots were taken from shot 21 on for Andrea Schmidt. On shot 9, the TF rogowski reached 408 kA after the shot. The following shot was OK so we continued. Then, the last two shots 26 and 27 also had the same problem with the TF rogowski measurement, which were clearly false but indicate a problem with the integrator. So, the run ended early to investigate this problem. Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result | 01 1.987 0.831 Plasma | 02 1.987 0.836 Plasma | | 03 1.988 0.828 Plasma | 04 1.989 0.824 Plasma | | 05 1.626 0.826 Plasma | 06 1.988 0.829 Plasma | | 07 1.990 0.827 Plasma | 08 1.990 0.820 Plasma | | 09 1.992 0.817 Plasma | 10 1.994 0.808 Plasma | | 11 1.989 0.808 Plasma | 12 1.988 0.807 Plasma | | 13 1.984 0.808 Plasma | 14 1.991 0.826 Plasma | | 15 1.990 0.807 Plasma | 16 1.989 0.810 Plasma | | 17 1.992 0.811 Plasma | 18 1.985 0.811 Plasma | | 19 1.987 0.810 Plasma | 20 1.988 0.827 Plasma | | 21 1.990 0.839 Plasma | 22 1.990 0.834 Plasma | | 23 1.988 0.821 Plasma | 24 0.000 0.002 Dud | | 25 1.987 0.812 Plasma | 26 1.908 0.556 Plasma | | 27 0.000 0.035 Fizzle Date 1070523: 27 shots. 25 plasmas. 1 fizzle. 0 duds. 1 System Error. (Plasma = Ip gt 50.0 kA Dud = H_alpha lt 0.40 V) Total plasma duration: 49.28 s (exceeding -83 kA)

Session Leader Comments
May 23 2007 09:46:13:653AM	1070523001	Greg Wallace	Accidentally fired at 0s instead of .8s. Will retry next shot.
May 23 2007 09:46:26:153AM	1070523002	Greg Wallace	Accidentally fired again at 0s instead of .8s. Will retry next shot.
May 23 2007 10:02:30:370AM	1070523003	Greg Wallace	LH fired at .8s on this shot. One trip at .89s retried sucessfully. Loop voltage reduced by .15V. nl_04 6.9-7.6e19 m^-2. Reflections a bit high on the top rows (40%) and noisy, better on the bottom (20%) but with some oscillation before trip. The oscillation appears to be an arc in 8C which goes away after the retry. Next shot will be same as this to see if arcing goes away.
May 23 2007 10:11:50:707AM	1070523004	Greg Wallace	LH fired at .8s on this shot. Nearly identical to shot 3. Again, one trip at .89s, clean after retry. Arcing appears to start in 8C. Next shot will try turning on from .8 to .84, then turning off until .86, then staying on until 1.3s. nl_04 7.2-7.8e19 m-2. Loop voltage change of ~.15V during LH pulse.
May 23 2007 10:24:01:220AM	1070523005	Greg Wallace	LH fired at .8s. LH was intentionally turned off from .84 to .86s. The rest of the pulse ran cleanly after .86s despite an arc in 8C during the beginning of the shot. Next shot will shorten the length of pulse before the turnoff. nl_04 of 7.3-8e19. Loop voltage change of ~.15V during LH pulse.
May 23 2007 10:49:15:903AM	1070523006	Greg Wallace	LH fired at .8s. Early turnoff supressed the arc sucessfully. We will try shortening the off time. nl_04 of 7.2-7.8e19. Loop voltage change of ~.15V during LH pulse.
May 23 2007 11:01:40:173AM	1070523007	Greg Wallace	Pulse ran clean without any signs of arcing before nor after the dropout. This may be due to ramp starting at lower power. Next shot will move dropout later in the shot to see if new ramp waveform is really helping. nl_04 of 7.1-7.6e19. Loop voltage change of ~.2V during LH pulse.
May 23 2007 11:10:00:113AM	1070523008	Greg Wallace	Arcing appears to be in 9C before the dropout---altered rampup waveform did not fix the problem. Next shot will move dropout back towards beginning of pulse. nl_04 of 8-7e19. Loop voltage change of ~.2V during LH pulse.
May 23 2007 11:43:45:970AM	1070523010	Greg Wallace	Shot ran clean after dropout. Next shot will increase each klystron from 75 to 100kW. nl_04 of 8.5-7.5e19. Loop voltage change of ~.2V during LH pulse. Spectrum analyzer trigger time moved to 100ms after start of LH pulse.
May 23 2007 12:02:38:150PM	1070523011	Greg Wallace	circulstor arc then retries fail due to no forward power on that klystron
May 23 2007 12:07:32:027PM	1070523012	Greg Wallace	circulstor arc #10 then retries fail due to no forward power on that klystron (same as shot 11)
May 23 2007 12:38:26:943PM	1070523013	Greg Wallace	Shot ran smoothly with NETPOW ~550kW until plasma went into H-mode at 1.05s. Ran into H-mode until 1.2s when there was an injection which caused density to rise rapidly from 1-5e18 on the LH probes and a big flash on the video display. Best guess is that the injection was not caused by LH? Next shot will repeat, hopefully without flash.
May 23 2007 12:49:01:417PM	1070523014	Greg Wallace	Shot ran clean through at 525kW net power. Reflections are getting quite noisy on top rows, still pretty clean on the bottom rows. nl_04 dropping 8-7e19. Loop voltage change of ~.2V. Next shot will increase power to 125kW per klystron.
May 23 2007 01:03:32:453PM	1070523015	Greg Wallace	Many trips, did not retry sucessfully. Waveform was not programmed correctly, but main problem seems to be a trip in 8C again. Next shot will retry with standard waveform, all klystrons at 125kW except #4 which will be at 100kW.
May 23 2007 01:33:40:810PM	1070523016	Greg Wallace	Frequent trips during first half of LH pulse. H-mode at 1.2s. More arcing on #8C? Next shot will be repeat of same.
May 23 2007 01:53:25:130PM	1070523017	Greg Wallace	Initial dropout did not solve arcing problem in 9C. Tripout after 100ms killed the arc, however. Plasma went into H-mode at 1.1s and loop voltage dropped .2V during L-mode and an additional .3V in H-mode with LH on. Coupling was somewhat worse during H-mode, increasing from 25 to 30% REFCO.
May 23 2007 02:03:55:960PM	1070523018	Greg Wallace	More arcing on 9C. Next shot will decrease power on klys 5 and also ramp on the retry after the dropout.
May 23 2007 02:25:42:923PM	1070523019	Greg Wallace	More arcing immediately after the initial dropout in 9C. Another good H-mode at 1.1sec. Next shot will be with no LH.
May 23 2007 02:44:23:417PM	1070523021	Andrea Schmidt	This will be low density (5e19 requested), LH modulated from 0.5 to 1.2 s, 90 degree phasing.
May 23 2007 03:11:31:783PM	1070523022	Andrea Schmidt	nl04=5e19, modulated LH from 0.5 to 1.2 s, 90 degree phasing.
May 23 2007 03:32:32:060PM	1070523023	Andrea Schmidt	nl04=5e19, modulated LH from 0.5 to 1.2 s, 90 degree phasing. Next shot will be same.
May 23 2007 05:03:35:140PM	1070523025	Andrea Schmidt	nl04=5e19, modulated LH from 0.5 to 1.2 s, 90 degree phasing. Next shot will be same.
May 23 2007 05:04:04:310PM	1070523026	Andrea Schmidt	nl04=5e19, modulated LH from 0.5 to 1.2 s, 90 degree phasing.

Physics Operator Comments
May 23 2007 09:37:24:430AM	1070523001	Joseph Snipes	Shot 1: Loaded shot 1070426017. Loaded segment 1 from shot 1070517023 into segment 1 for startup. Recalculated all magnetics predictors in segments 2 and 3 but not 4. Good shot. Got LH from 0.02 to 0.103 s. Some interesting AE activity from 0.022 to 0.031 s between 200 kHz and 600 kHz. There is also a low frequency MHD mode around 3 kHz just before 0.1 s. These modes suggest some LHCD in the current rise. Good shot.
May 23 2007 09:45:45:717AM	1070523002	Joseph Snipes	Shot 2: Repeat. Again got LH pulse in the current rise. Some interesting AE activity up to 750 kHz between 0.02 and 0.04 s. Low frequency MHD also between 0.03 and 0.1 s from 15 kHz down to near 0 kHz. Good shot.
May 23 2007 09:56:00:640AM	1070523003	Joseph Snipes	Shot 3: Enabled argon puff from 0.3 to 0.4 s. Set fizzle detector to 2.1 s for TF rampdown in case of a fizzle to improve OH coil resistance. Good shot. Baseline offset on BP11_BC of 1.1 x 10^-2 Wb. LH now on from 0.8 to 1.3 s.
May 23 2007 10:05:34:020AM	1070523004	Joseph Snipes	Shot 4: Repeat. Good shot.
May 23 2007 10:23:15:300AM	1070523005	Joseph Snipes	Shot 5: Enabled LPI for a lithium pellet at 1.6 s. Good shot. Disrupted at 1.62 s apparently due to the pellet. Otherwise it was a good shot.
May 23 2007 10:38:41:557AM	1070523006	Joseph Snipes	Shot 6: Disabled LPI. Waited 16 minutes to go to INIT to let the resulting gas from the disruption pump out. Good shot.
May 23 2007 10:56:51:860AM	1070523007	Joseph Snipes	Shot 7: Repeat. Good shot.
May 23 2007 11:03:30:157AM	1070523008	Joseph Snipes	Shot 8: Repeat. Good shot.
May 23 2007 11:20:08:493AM	1070523009	Joseph Snipes	Shot 9: Repeat. Good shot.
May 23 2007 11:38:31:123AM	1070523010	Joseph Snipes	Shot 10: Repeat. Good shot.
May 23 2007 11:50:36:410AM	1070523011	Joseph Snipes	Shot 11: Repeat. Good shot.
May 23 2007 12:05:54:027PM	1070523012	Joseph Snipes	Shot 12: Repeat. Good shot.
May 23 2007 12:30:25:690PM	1070523013	Joseph Snipes	Shot 13: Repeat. Good shot. Three bursts of Type III ELMs from 1.12 to 1.2 s during Lower Hybrid that are correlated in time with a bright flash in the video image coming from the upper part of the LH grill. Good shot.
May 23 2007 12:41:57:057PM	1070523014	Joseph Snipes	Shot 14: Repeat. Good shot. No H-mode this time.
May 23 2007 12:59:51:360PM	1070523015	Joseph Snipes	Shot 15: Repeat. Good shot.
May 23 2007 01:25:35:447PM	1070523016	Joseph Snipes	Shot 16: Repeat. Good shot. Nice EDA H-mode from 1.2 to 1.3 s during LH with a clear QCM at about 150 kHz on the magnetics data. Then, after the LH turns off at 1.3 s, the H-mode reverts to a Type III ELMy H-mode.
May 23 2007 01:41:33:593PM	1070523017	Joseph Snipes	Shot 17: Repeat. Good shot.
May 23 2007 02:02:13:867PM	1070523018	Joseph Snipes	Shot 18: Repeat. Good shot. Went into H-mode earlier at about 1.05 s. It is not a good quality H-mode however.
May 23 2007 02:17:44:920PM	1070523019	Joseph Snipes	Shot 19: Repeat. Good shot. Went into H-mode at about 1.09 s until about 1.57 s
May 23 2007 02:58:22:763PM	1070523020	Joseph Snipes	Shot 20: Repeat without LH power for comparison. Good shot.
May 23 2007 02:58:47:123PM	1070523021	Joseph Snipes	Shot 21: Loaded shot 1070503034 to change to Andrea Schmidt's program. Good shot at nl04 = 5 x 10^19 m^-2.
May 23 2007 03:09:20:893PM	1070523022	Joseph Snipes	Shot 22: Repeat. Good shot.
May 23 2007 03:28:17:133PM	1070523023	Joseph Snipes	Shot 23: Increased RCUR by 1.5 mm from 0.4 to 1.5 s to reduce the outer gap to the LH grill by 3 mm. Good shot.
May 23 2007 03:47:59:533PM	1070523024	Joseph Snipes	Shot 24: No power test shot due to computer problems.
May 23 2007 04:02:37:273PM	1070523025	Joseph Snipes	Shot 25: Increased RCUR by 0.5 mm to reduce the outer gap by 1 mm for the LH coupling. Good shot.
May 23 2007 04:22:33:390PM	1070523026	Joseph Snipes	Shot 26: Reduced Ip to 0.5 MA, increased nl04 to 7.5 x 10^19 m^-2 and reduced RCUR by 1.5 mm. LH is modulated but there is a huge D alpha and Prad spike around 0.55 s perhaps due to an injection from the LH grill. Otherwise it is a good shot.
May 23 2007 04:39:53:163PM	1070523027	Joseph Snipes	Shot 27: Fizzle!
May 23 2007 05:03:20:717PM	1070523027	Joseph Snipes	Shot 28: Enabled LPI to inject a lithium pellet at 1.3 s. Run ended prematurely before shot 28 to investigate problems with the TF rogowski integrator measurements that gave apparent TF currents of 408.3 kA.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:17:50:220AM	Plasma	Ok
2	09:33:30:130AM	Plasma	Ok
3	09:46:44:713AM	Plasma	Ok
4	10:01:25:727AM	Plasma	Ok
5	10:17:20:767AM	Plasma	Ok
6	10:35:37:663AM	Plasma	Ok
7	10:48:33:417AM	Plasma	Ok
8	11:01:40:563AM	Plasma	Ok
9	11:16:27:443AM	Plasma	Ok
10	11:32:48:340AM	Plasma	Ok
11	11:48:22:020AM	Plasma	Ok
12	12:04:06:697PM	Plasma	Ok
13	12:19:50:170PM	Plasma	Ok
14	12:37:32:443PM	Plasma	Ok
15	12:57:59:157PM	Plasma	Ok
16	01:17:32:100PM	Plasma	Ok
17	01:37:26:560PM	Plasma	Ok
18	01:51:40:490PM	Plasma	Ok
19	02:07:46:323PM	Plasma	Ok
20	02:25:20:033PM	Plasma	Ok
21	02:47:34:620PM	Plasma	Ok
22	03:05:36:173PM	Plasma	Ok
23	03:20:29:430PM	Plasma	Ok
24	03:42:51:280PM	Plasma	Bad	Datasystem problems
25	04:00:57:913PM	Plasma	Ok
26	04:14:34:200PM	Plasma	Ok
27	04:37:17:363PM	Plasma	Ok

System Availability

May 23 2007 09:17:24:080AM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD yes Fully operational Mar 28 2007 09:19PM (sears) Joe Snipes Active MHD Antenna sears,snipes BES yes vertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm. Feb 06 2007 10:00AM (bravenec) Ron Bravenec Beam Emission Spectroscopy bravenec Bolometers yes 2Pi diode operational, 2Pi foil being upgrade for noise resistance. Midplane foils being digitized but not calibrated, still ICRF pickup. Midplane AXUV and divertor being digitized but analyzed data not ready. Apr 26 2007 10:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization yes First Boronization 5/9/07 May 10 2007 04:55PM (irby) Jim Irby Boronization dekow,irby CNPA no   Jan 14 2007 02:06PM  Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor no In-vessel hardware is installed; in-vessel cryogenic systems are leak-tight and have passed LN2 cool-down tests. Work is proceeding on external LHe and LN2 transfer lines as well as PLC control system. Mar 30 2007 10:53AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard CXRS yes The pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersect the beam at the major_R_range=[75,4:87.4]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[67.8:91.0]cm. Spatial resolution: 1.22 cm. May 01 2007 12:31PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar Disruption Mitigation no   Jan 14 2007 02:02PM  Bob 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,ldorf,terry DNB yes All systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shots Mar 28 2007 09:36AM (beals) Bob Granetz Diagnostic Beam beals,granetz FRC-ECE yes All channels now working. Apr 04 2007 11:04AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips G-Side Ratiomatic yes The gauge is operational. Mar 30 2007 10:54AM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland GPC yes Chs 1-8 operational. But, low and noisy signals on SOME shots, others OK. May 10 2007 10:01AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most slow channels (except 1,8,10,17) operational. Set to lower freqs for LHCD. Apr 11 2007 09:34AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPI yes New view just outside of the lower X-point is operational, but data is being archived locally , not to the tree. Midplane GPI is not operational. Mar 27 2007 01:59PM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (marmar) Earl Marmar H/D Ratio marmar Hirex Jr yes   Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice Hirex Sr yes Storing Data, but profiles not yet available Apr 27 2007 01:20PM (ince) John Rice High Resolution X-Ray ince,rice HXR yes Something might be wrong with channel 26; all others working fine. Mar 23 2007 10:43AM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt ICRF D-Antenna yes 80.5 MHz. ready Mar 28 2007 08:50AM (ylin) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna no 80 MHz. FFT installation/coaxial line needs more work Mar 16 2007 09:32AM (ylin) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna yes 78 MHz Apr 04 2007 08:56AM (ylin) Steve Wukitch J-port antenna wukitch,ylin Lower Hybrid no 6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry) Ron Parker Lower Hybrid dterry,parker LPI yes   Apr 26 2007 08:35PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane data being digitized, but analyzed data not ready. 2D arrays being debugged. Apr 26 2007 10:28AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson yes Working normally. Apr 19 2007 09:52AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry Michelson yes Operational. Mar 28 2007 08:33AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes E-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box. Mar 20 2007 06:42PM (g) Brian LaBombard Baratron pressure gauges labombard MLP no Bench tests are proceeding on a prototype MLP system. We hope to roll the system into the cell for testing in a few weeks, powering up a single electrode on the A-port scanning probe. Mar 13 2007 09:57PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no (1) Bandpass filters replacement underway (2) Beam-into-gas spectrum measurement underway (3) Shutter mechanism currently unstable; remains open. (4) Expect beam-into-gas calibrations complete about 4/24. Apr 03 2007 12:05PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes Both neutron systems are fully operational Apr 05 2007 11:19AM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes operational Mar 21 2007 04:29PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter). Mar 29 2007 11:47AM (terry) Brian LaBombard NINJA gas puff labombard,terry PCI no System unavailable. The laser is under repair. Apr 04 2007 11:16PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab Penning Gauges yes 8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'. Mar 13 2007 10:01PM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational. Mar 27 2007 01:53PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby Probe Array - ISD yes Probes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:47PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes Probes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard Probe Array - UDIV yes 14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis. Mar 13 2007 12:46PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes The 60, 110, 88LSB, 88USB and 88 are connected but still being tested. The Swept frequency channel is sweeping with the waveform voltage swept at 5Hz with the voltage 4V-8V (117.8GHz-135.5GHz), also in the testing stage. May 21 2007 07:26PM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A-port WASP successfully collected data on 04/04. Some intermittent open circuit on SE Electrode. K-WASP took data on 04/11. Both ready to scan as needed. Apr 12 2007 04:18PM (nsmick) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick TCI yes NL_04 at 71.04 cm from 3/9/07 calibration May 23 2007 07:38AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes 2 lasers, 11 spatial channels. Density is calibrated based on ECE cutoffs obtained on 4 May 2007. Additional spatial channels will be added over the next several weeks. May 10 2007 10:37AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes TS - Edge yes 2 lasers, 20 spatial channels. Fiber holder position is -125mm (standard). Density is cross-calibrated to the core system, based on shots 1070504014, 016, and 019. May 21 2007 02:39PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes Vispec yes 350 and 670 nm, 4 spatial channels May 04 2007 01:02PM (agraf) Alex Graf Visible Spectrometer agraf