Miniproposals

Miniproposal: 471 Date Filed: 3/8/2007 Title: Optimization of the Fast Vertical Control Gains for DIII-D and ITER-like shapes First Author: Marco Ferrara Session Leader: Marco Ferrara (shots 1-30)

Engineering Operator Run Comment

MP471 Fast control gain optimization. Physics Operator Ian Hutchinson, S

Session Leader Plans

Entered: Apr 5 2007 05:44:22:530PM

Author: Marco Ferrara

First half of the run, optimization of the fast vertical gains: -Start with target 1050706022, with lower peak elongation 1.7 and increase to 1.8 (2/3 shots). Seek for max elongation achievable with old set of gains. -Change gains to the nominal optimum P=3, D=5.5. Try a few shots to make sure that these gains work for the same target plasma (1/2 shots). Increase elongation to 1.8 -Try a few shots, adjust the gains if needed (3/4 shots). If there seems to be margin for pushing more, try k>1.9, adjust the gains if needed (3/4 shots). -Total 9/13 shots for the first half of the run. Second half of the run, ITER shape: -Target 1040127005 is more difficult, it might require a few shots to get the equilibrium right. -Start with lower current and smaller elongation k=1.7 and increase to the target Ip=1.6MA, k>1.8 (3/4 shots). -Because of the large current, feedback control of lock modes is essential. -Change control gains to the nominal optimum P=3, D=5.5. Try a few shots and optimize gains if needed (4/5 shots). -If there is time, play with other shape parameters (3/4 shots). -Total 10/13 shots for the second half of the run.

Physics Operators Plans

Entered: Apr 5 2007 02:45:12:333PM

Author: Ian Hutchinson

Engineering setup for Friday 6 April. MP471 Fast control gain optimization. Overnight ECDC in D2. Use power systems setup for shot 1050706022. A-coil configuration normal. Gas configuration as we've had for recent shots as far as I know. Initially disable Argon puff. Enable the following gate valves and shutters: ECE, VUV, Z-bolo shutters No ICRF or LH.

Session Leader Summaries

Entered: Apr 6 2007 06:12:24:497PM

Author: Marco Ferrara

Run 1070406 aimed at pushing to high elongations while looking for the optimal (most stable) set of control gains for the fast vertical loop. Target plasma was 1050706022, but with slightly different vertical programming (-5mm in the flat-top). Also the RXL needed to be modified to increase clearance at the divertor. During the run the RCUR programming was tweaked during the flat-top to squeeze the plasma and produce high elongations. The proportional gain was scanned P=2.5,3,3.5,4,4.5 with derivative gain fixed at 5. At low proportional gain and high elongation k>1.85 the plasma experiences a low frequency (about 50Hz) vertical oscillation ending with a disruption. At high proportional gain and similar elongation, it is a high frequency (about 100Hz) vertical oscillation that goes unstable. Best shot of the day was 1070406016 (well reproducible: see 1070406017) with peak elongation >1.85. In this case P=3 and D=5. Derivative gain was therefore scanned for the same target plasma D=5,6,7,8. The vertical trace seemed to have lower activity at high derivative gains D=7,8. Optimal proportional gain seems to lie in the range P = 3 - 4, while optimal derivative gain is probably in the range D = 5 - 8. Last shot of the day 1070406030 aimed at the highest elongation with P=5, D=8 and DPCS cycle down to 72us (limit speed, no samples lost during discharge), but ended with a disruption at 1.44s. All shots aiming at elongations >1.85 ended with disruptions.

Physics Operator Summaries

Entered: Apr 6 2007 05:16:35:070PM

Author: Ian Hutchinson

Summary ________ A slow start with chopper and data system problems. Then we got into a good groove. The plasmas here routinely produce sustained ohmic H-modes lasting of order 1 second. Elongations to 1.85+ were obtained. However, despite obtaining new record elongation and n/n_c, it was not demonstrated that the proposed adjustments to gains are a big win. See Session Leader for more analysis. Scorecard _________ Setting date to that of current shot. Change if necessary. Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result | 01 0.175 0.661 Plasma | 02 0.000 0.002 Dud | | 3 No Ip | 4 No Ip | | 05 0.000 0.002 Dud | 06 1.981 0.987 Plasma | | 07 1.482 0.987 Plasma | 08 0.000 0.041 Fizzle | | 09 1.980 0.989 Plasma | 10 1.984 0.995 Plasma | | 11 1.984 0.995 Plasma | 12 1.984 0.998 Plasma | | 13 1.983 0.995 Plasma | 14 1.984 0.995 Plasma | | 15 1.983 0.998 Plasma | 16 1.984 0.995 Plasma | | 17 1.983 0.997 Plasma | 18 1.247 0.996 Plasma | | 19 1.071 1.008 Plasma | 20 0.000 0.047 Fizzle | | 21 1.160 0.989 Plasma | 22 0.000 0.051 Fizzle | | 23 1.403 0.991 Plasma | 24 0.000 0.050 Fizzle | | 25 1.249 0.996 Plasma | 26 0.000 0.052 Fizzle | | 27 1.984 0.995 Plasma | 28 1.985 0.995 Plasma | | 29 1.985 0.995 Plasma | 30 1.449 0.995 Plasma | Date 1070406: 30 shots. 21 plasmas. 5 fizzles. 2 duds. 2 System Error.

Session Leader Comments
Apr 6 2007 11:00:15:810AM	1070406006	Marco Ferrara	Good plasma, 1.75 EFIT elongation, P=4, D=6 on this shot (standard gains). Next shot, change gains to nominal optimum P=3, D=5.5
Apr 6 2007 01:02:02:093PM	1070406007	Marco Ferrara	P=4, D=5.5 seem to be more unstable... more activity on A_out3. Also disruption at 1.5s prob because of EF1 saturation
Apr 6 2007 01:02:13:577PM	1070406009	Marco Ferrara	P=4, D=5.5 worked alright. Nc has a minimum -1.05 at 1.3s, the plasma is under vertical control. Next shot try D=5.
Apr 6 2007 01:02:30:483PM	1070406010	Marco Ferrara	P=4, D=5 worked alright. Max elongation still 1.77 at 1.3s. Next shot try to raise elongation.
Apr 6 2007 01:02:40:750PM	1070406011	Marco Ferrara	P=4, D=5. In this shot the target value of RCUR was reduced during the flattop to increase elongation. Max elongation 1.78 and Nc down to -1.1 at 1.3s. Next shot try to raise elongation more by reducing RCUR.
Apr 6 2007 01:02:52:890PM	1070406012	Marco Ferrara	P=4, D=5. Max elongation 1.8 and Nc down to -1.15 at 1.2s. Next shot try to increase elongation through reducing RCUR. Also increase clearance from the divertor pushing in RXL
Apr 6 2007 01:03:36:780PM	1070406013	Marco Ferrara	P=4, D=5. Max elongation 1.82 and Nc down to -1.05 at 1.3s. Next shot try to increase elongation through reducing RCUR.
Apr 6 2007 01:03:55:220PM	1070406014	Marco Ferrara	P=4, D=5. Max elongation 1.82 and Nc down to -1.07 at 1.3s. Next shot try to increase elongation through reducing RCUR.
Apr 6 2007 01:10:38:440PM	1070406015	Marco Ferrara	P=4, D=5. Elongation up to 1.85, Nc down to -1.1 at 1.3s. Next shot change proportional to P=3. No changes in shape programming, only test of P gain in fast vertical control.
Apr 6 2007 01:23:44:117PM	1070406016	Marco Ferrara	P=3, D=5. Elongation up to 1.87, Nc down to -1.08 at 1.3s. Next shot increase elongation.
Apr 6 2007 01:41:55:920PM	1070406017	Marco Ferrara	P=3, D=5. Elongation up to 1.87, Nc down to -1.08 at 1.3s. Almost identical to shot 16. Next shot increase elongation.
Apr 6 2007 02:03:08:873PM	1070406018	Marco Ferrara	P=3, D=5. Disruption when k=1.86, Nc down to -1.17 at 1.22s. Big injection.
Apr 6 2007 02:29:56:490PM	1070406019	Marco Ferrara	P=3, D=5. Disruption when k=1.82, Nc down to -1.17 at 1.06s. Try to lower P=2.5, same plasma shape
Apr 6 2007 02:47:32:870PM	1070406020	Marco Ferrara	P=2.5, D=5. Low frequency branch unstable. Try to increase the proportional gain to 3.5.
Apr 6 2007 03:25:32:137PM	1070406023	Marco Ferrara	P=3.5, D=5. Disruption, low frequency branch
Apr 6 2007 03:41:28:673PM	1070406025	Marco Ferrara	P=4.5, D=5. Disruption, high frequency branch at 1.23s
Apr 6 2007 04:15:09:780PM	1070406027	Marco Ferrara	P=3, D=6. Didn't disrupt, very similar to shot 17 (same programming, but D=5 in that shot)
Apr 6 2007 04:35:59:770PM	1070406028	Marco Ferrara	P=3, D=7. Seems more stable than shot 27. However Nc is smaller here
Apr 6 2007 05:01:06:483PM	1070406029	Marco Ferrara	P=3, D=8. Looks stable. Next shot push the elongation adn try DPCS period 72us.
Apr 6 2007 05:18:01:507PM	1070406030	Marco Ferrara	P=3, D=8. DPCS period 72us. Target elongation >1.87. Disrupted at 1.44s, both slow and fast branches seem to contribute.

Physics Operator Comments
Apr 6 2007 08:37:17:087AM		Ian Hutchinson	Load shot from 10705028. Load segment 2 from 1050706022 seg 2. Messages: DPCS working copy not superceded. Set zcur to -5mm from zero. This ought to stabilize the shot noticeably. Load. This is the shot we start from
Apr 6 2007 09:00:22:860AM		Ian Hutchinson	Setup of segment 3 for part 2 of MP. Import segment 2 from 1040127005. Message: Error opening dpcs tree shot. Then follow the Wolfe instructions as follows: 1. RCUR : Bring up Edit Wire screen and recalculate (CALL) predictors for all three rows. You will see the date change in the alg-version window. When done hit Apply, and ok the factor screen. If you use apply instead of OK the edit wire screen stays in place and you can just go down the row of buttons on the main PCS screen. 2. ZCUR : CALL the predictor (only the middle one is active). Hit APPLY and ok the factor screen 3. zero_03 : I think we want to change this back to being the fast ZCUR. Do a LOAD WIRE from Wire 10 in the same segment as you are working in. Leave the Directory as pcs_scratch and the shot number as -1. This will change the contents to ZCUR. Now CALL the predictor, note that the alg-version date changes, and hit APPLY and ok the factor screen. 4. CLEARIN: CALL the predictor. Note that this will remove the 12700 offset value; that's good because you were advised to zero this in one of the messages you acknowledged earlier. APPLY, ok factor, ... 5 -8. RXL, ZXL, RXU, ZXU: Same drill, CALL the predictors, APPLY, ok the factors, move on. 9. bolofeed: You want to change this to the B21_PROJ feedback algorithm for the A-coils. There are four steps: a) Do LOAD WIRE from a segment that has this predictor; if you started from a shot from today then there is one in Segment 4, wire 9. Leave directory as "pcs_scratch" and shot=-1. b) CALL the predictor (I'm not positive this is needed, but there is a more recent version than the one in seg4 and I don't know what changed. Hit APPLY and acknowledge the message from P_INFO and ok the factor screen. c) Bring up the Integrator Gates screen (button at bottom of segment window) and move the start of Gate C to 0.2 seconds (or earlier). OK this screen. d) Bring up the V#01-16 Screen. It will probably put up two pop-ups about changing the names of outputs. Acknowledge these. Zero out the waveform for the Acoil_VOLT (2nd trace in right hand column). Ok the window. 10. ZCUR: You don't want this one any more, so hit ZERO_ALL. Hit APPLY and acknowledge the P_INFO pop-up. If you get a factor screen, ok that too. 11-12: zero_11,zero_12 : No action required 13. EF2_BY_EF4: no action required 14. NL_04: If the SL wants a different density then reprogram it. Otherwise, no action required. 15. IC_EF4: no action required. We may want to increase the program value later in the run. 16. IP: CALL the predictor. This will have the effect of zeroing the 70000 amp offset, and it can't hurt. If the SL wants to change the current program to a lower value than 1.6MA ( I recommend it) then make the change. OK the screen and the factor screen when it comes up. For some reason, the TF seems to have been programmed to -147kA, instead of -150kA. Not that it matters a lot, but this should probably be changed (V#01-16 screen). Wire 3 gains to d=5.5 to compensate for the change of gains.
Apr 6 2007 09:19:13:073AM	1070406001	Ian Hutchinson	Plasma disrupts at .157s, because chopper did not work. Also got no gas puff, or at least no puff diagnostics.
Apr 6 2007 09:34:49:153AM	1070406002	Ian Hutchinson	Chopper and gas test. Got gas, and diagnostics look ok. No chopper. Call all magnetics predictors in segment 2.
Apr 6 2007 10:35:49:473AM	1070406003	Ian Hutchinson	No power data hang.
Apr 6 2007 10:49:06:917AM	1070406005	Ian Hutchinson	Finally got a data cycle to run. Chopper test works.
Apr 6 2007 11:00:28:810AM	1070406006	Ian Hutchinson	Plasma.Chopper is working. Substantial noise but there's no obvious instability. Change fast zcur gains. D to 5.5. from 6., P to 3 from 4.
Apr 6 2007 11:17:22:037AM	1070406007	Ian Hutchinson	Plasma disrupts at 1.48. EF1U is saturated at this point (in prior shot too) Reduce nl04 early to prevent density overshoot. Reduce RXU from .015 to .012 to prevent EF1U saturation.
Apr 6 2007 11:27:36:120AM	1070406008	Ian Hutchinson	Fizzle. Br offset to -0.4 mT from -0.7 mT.
Apr 6 2007 11:40:25:030AM	1070406009	Ian Hutchinson	Plasma. Ramps down. D to 5.0 from 5.5. nl04 to .9e20. Attempts to fix the nl04 gain not working at the moment.
Apr 6 2007 12:14:22:293PM	1070406010	Ian Hutchinson	Plasma to rampdown. Call nl04 predictor to correct calibration. Lower Rcur to .653 from .6545 at 1.5 s, a 1.5mm inward motion, should make the plasma more unstable, as requested.
Apr 6 2007 12:15:03:370PM	1070406011	Ian Hutchinson	Plasma to rampdown. Reduce Rcur by another 1.5mm to .6515.
Apr 6 2007 12:34:46:723PM	1070406012	Ian Hutchinson	Plasma to rampdown. Reduce RXL by 5mm at 1.3s. Rcur to .6500 at 1.45s. (A further 1.5mm reduction). Tweak RXU at late time. Still trying to avoid EF1U saturation.
Apr 6 2007 12:45:12:913PM	1070406013	Ian Hutchinson	Plasma to rampdown. RXL decreased a further 3mm to .007 at 1.3s Rcur to 0.6485, a further 1.5 mm reduction at 1.45s.
Apr 6 2007 01:09:40:597PM	1070406014	Ian Hutchinson	Plasma to rampdown. Rcur to .647. RXL to .003 (4mm) Observe that the Zcur P is now at 4 whereas, it was supposed to have been set to 3 at shot 6. This appears to be operator error, but should be checked.
Apr 6 2007 01:23:01:477PM	1070406015	Ian Hutchinson	Plasma to rampdown. P gain to 3 from 4. No other changes.
Apr 6 2007 01:47:25:053PM	1070406016	Ian Hutchinson	Plasma to rampdown. Slightly lower amplitude chopper fluctuations. Rcur to .6455 at 1.45s. This is what I meant to do. But it does not seem to have happened.
Apr 6 2007 01:56:06:623PM	1070406017	Ian Hutchinson	Plasma till rampdown. I think this is just a repeat of the previous shot. The elongation does not substantially increase. Rcur .6455 really really. Load.
Apr 6 2007 02:13:14:607PM	1070406018	Ian Hutchinson	Plasma Disrupts at 1.27s. Injection at 1.13. z-oscillations at 1.08s may be the cause. No PCS changes.
Apr 6 2007 02:30:58:677PM	1070406019	Ian Hutchinson	Plasma disrupts at 1.07s. Growing oscillation leads to VDE. P to 2.5 from 3.
Apr 6 2007 02:34:50:773PM	1070406020	Ian Hutchinson	Fizzle. No PCS changes
Apr 6 2007 02:58:03:017PM	1070406021	Ian Hutchinson	Plasma. 20 Hz vertical oscillation for this P=2.5 case. Disrupts at 1.16s. P to 3.5 from 2.5.
Apr 6 2007 03:10:24:207PM	1070406022	Ian Hutchinson	Fizzle. No PCS changes.
Apr 6 2007 03:39:55:780PM	1070406023	Ian Hutchinson	Plasma disrupts at 1.39s. Oscillation period 19ms, but with some second harmonic. P to 4.5 from 3.5
Apr 6 2007 03:56:05:897PM	1070406025	Ian Hutchinson	Plasma disrupts at 1.24s. Oscillation period 10ms. This is the fast mode perhaps. Rcur back to .6470 (1.5ms further out). Rcur offset to 1500 in segment 1. P to 3, D to 6.
Apr 6 2007 03:58:24:600PM	1070406026	Ian Hutchinson	Fizzle. Slightly late breakdown. No PCS changes.
Apr 6 2007 04:33:43:630PM	1070406027	Ian Hutchinson	Plasma till rampdown. Oscillation period 17ms. D to 7 from 6.
Apr 6 2007 04:58:22:860PM	1070406028	Ian Hutchinson	Plasma to rampdown. Oscillation amplitude reduced. Period 17ms, but with higher harmonics. P to 8 from 7.
Apr 6 2007 05:01:14:780PM	1070406029	Ian Hutchinson	Plasma till rampdown. Rcur to .6455 (1.5mm lower). Try for record.
Apr 6 2007 05:17:41:833PM	1070406030	Ian Hutchinson	Plasma disrupts at 1.43. Several injections, so not entirely a fair test, but this is a VDE.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:00:26:003AM	Plasma	Bad	efc did not run, gas did not fill
2	09:15:04:237AM	Test	Bad	efc failed
4	10:03:14:960AM	Test	Bad	Igor failed
5	10:32:53:550AM	Test	Ok	Efc chopper lost ready in check
6	10:47:28:340AM	Plasma	Ok
7	11:00:22:017AM	Plasma	Ok
8	11:13:07:910AM	Plasma	Ok
9	11:25:52:463AM	Plasma	Ok
10	11:45:12:047AM	Plasma	Ok
11	12:03:27:913PM	Plasma	Ok
12	12:18:02:293PM	Plasma	Ok
13	12:30:22:940PM	Plasma	Ok
14	12:43:28:477PM	Plasma	Ok
15	01:03:10:890PM	Plasma	Ok
16	01:18:58:723PM	Plasma	Ok
17	01:37:52:450PM	Plasma	Ok
18	01:53:33:787PM	Plasma	Ok
19	02:11:16:857PM	Test	Bad
20	02:28:55:177PM	Plasma	Ok
21	02:41:45:133PM	Test	Bad
22	02:54:37:310PM	Plasma	Ok
23	03:07:10:973PM	Plasma	Ok
24	03:24:57:290PM	Plasma	Ok
25	03:37:27:250PM	Plasma	Ok
26	03:53:17:927PM	Plasma	Ok
27	04:06:17:040PM	Plasma	Ok
28	04:28:43:987PM	Plasma	Ok
29	04:55:02:763PM	Plasma	Ok
30	05:07:49:753PM	Plasma	Ok

System Availability

Apr 6 2007 09:00:02:800AM

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 no 2Pi diode operational, 2Pi foil has 180 Hz noise source. Preparing external amplifiers and DAQ. Midplane ready soon, 2D ready by start of science runs. Mar 27 2007 05:30PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no   Jan 14 2007 01:47PM  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 intersects the beam at the range major_R=[75,4:87.4]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersects the beam at the range major_R=[67.8:91.0]cm. Spacial resolution: 1.22 cm. Apr 04 2007 01:39PM (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, cross-calibrated. Apr 04 2007 02:08PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt GPC2 yes Most slow channels (except 1,8,10,17) operational. Apr 03 2007 03:54PM (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 III no   Jan 14 2007 01:53PM  John Rice High Resolution X-Ray ince,rice Hirex Jr yes   Mar 06 2007 08:59AM (rice) 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 System unavailable. Analog Measurement System power supply failure. Parts here 040607 Apr 05 2007 11:03AM (dterry) Ron Parker Lower Hybrid dterry,parker LPI no available by 4/2 Mar 27 2007 04:44PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha no Preparing external amplifiers and DAQ. Midplane ready soon, 2D ready by start of science runs. Mar 27 2007 05:30PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke McPherson yes still a problem with the post shot script; this is being fixed by hand at present Mar 29 2007 11:45AM (terry) 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 no   Mar 05 2007 05:34PM (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 no A-port WASP successfully collected data on 04/04. Working on final plunge calibration. Some intermittent open circuit on SE Electrode. No data yet taken with K-WASP. Apr 05 2007 10:19AM (nsmick) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick TCI yes NL04 at 71.04 cm from 3/9/07 calibration Mar 09 2007 05:47PM (irby) Jim Irby Two-Color Interferometer (TCI) irby,murray TS - Core yes 2 lasers, 8 spatial channels. Density is not calibrated yet. Temperature should be fine. Apr 05 2007 08:28AM (jwhughes) Jerry Hughes Thomson Scattering - Core jwhughes TS - Edge no Replacement filter has been reinstalled. Bench recalibration needed. Should be ready sometime during the week of April 9. Apr 05 2007 08:29AM (jwhughes) Jerry Hughes Thomson Scattering - Edge jwhughes Vispec no   Apr 06 2007 08:51AM (agraf) Alex Graf Visible Spectrometer agraf