Miniproposals

Miniproposal: 296 Date Filed: 5/14/2001 Title: Confirmation of Thomson scattering density calibration using electron cyclotron emission cutoffs First Author: Jerry Hughes Session Leader: Jerry Hughes (shots 13-19)

Miniproposal: 429 Date Filed: 7/25/2005 Title: SOL turbulence in limited plasmas First Author: Stewart Zweben Session Leader: Stewart Zweben (shots 1-1)

Engineering Operator Run Comment

MP#429 Limiter Ohmic Turbulence (1/2 d) Zweben Irby And MP#296 Thomson/

Session Leader Plans

Entered: May 3 2007 03:31:45:137PM

Author: Jerry Hughes

Session Leader run plan for 1070504 (second half): MP 296: "Confirmation of Thomson scattering density calibration using electron cyclotron emission cutoffs" (a.k.a. "TS/ECE cross-calibration") PURPOSE: These shots will operate at low(ish) field and high densities in order to generate ECE cutoffs throughout the plasma. These give a fairly unambiguous density measurment, allowing the calibration of simultaneously measured Thomson scattering densities. PREPARATION: No special machine conditioning required. No RF required. Setup GPC grating for 4T. Adjust angle on GPC2 for low-field as well. RUN PLAN: -Begin with shot 1070503028. Keep Ip=800kA. Lower Bt to 4.0T. -Target nl04 be 1.2x10^20m^-2 at 0.6s, then stepped to 2.0x10^20m^-2. This should get central n_e sufficiently high to promote ECE cutoffs, but still allow operation below n_G. -Repeat shot, incrementing and decrementing Bt in steps of 0.1T as desired, in order to vary the radii of the measured cutoffs. -If we get a discharge that is steady and fully cut off on the LFS before the end of flattop, we might insert a Bt waggle up to 4.5 or 5.0T and back down, to obtain additional data points. -If Ohmic H-modes are prevalent, switch to inner wall limited or USN to raise the L-H power threshold.

Entered: May 4 2007 08:55:11:723AM

Author: Stewart Zweben

Continuation of MP#429: inner-wall limited shots for turbulence study, all with large outer gap of ~ 3.5 cm, all shots with probe scans and GPI puff at the A-B limiter and possibly at the innerwall capillary B16-001 Load shot 1060412026 1) 5.4 T, 0.8 MA (repeat of 1060412026), but with lowest possible density (nl04=4e19 similar to 1030702022) 2) 5.4 T, 0.8 MA (repeat of 1060412026), medium density (nl04=8e19) 3) 5.4 T, 0.8 MA (repeat of 1060412026), highest possible density (nl04=1.1e20 similar to 950609002- may need NINJA assist at innerwall) 4) 2.7 T, 0.4 MA , lowest possible density (nl04=3e19 similar to 990520012) 5) 2.7 T, 0.4 MA , medium density 6) 2.7 T, 0.4 MA , highest possible density 7) 4.05 T, 0.6 MA , lowest possible density 8) 4.05 T, 0.6 MA , medium density 9) 4.05 T, 0.6 MA , highest possible density and if possible: 10) 6.75 T, 1.0 MA , lowest possible density 11) 6.75 T, 1.0 MA , medium density 12) 6.75 T, 1.0 MA , highest possible density

Physics Operators Plans

Session Leader Summaries

Entered: May 4 2007 05:10:53:047PM

Author: Stewart Zweben

The first half of this day was MP#429, SOL Turbulence Experiment, but with a B field scan at constant q(a). We started by repeating the inner-wall limited, near-circular plasma of 1060412026, which was optimized for a comparison with Bruce Scott's GEMR code. This was at B=5.4 T, I=0.8 MA, with a large outer gap to see the SOL turbulence better, and a relatively low density. All shots had midplane GPI puff and fast diode data. Shots 1-2 of today were to re-establish the condition of 1060412026 and get probe data and GPI data. These were successful. Shot 1 had X-point GPI puff but no probes. Shot 2 had X-point GPI puff and probes. Shots 3-4 of today were to repeat this shot but at a higher density, to do a collisionality scan. These were successful. Shot 3 and 4 both had X-point GPI and probes. Shots 5-6 were at a higher field of B=6.75 T with I=1.0 MA and a relatively low density. These were successful. Shot 5 had X-point GPI puff and no probes. Shot 6 had X-point GPI puff and probes. Shot 7 disrupted early. Shot 8 was a 6.75 T shot like 5-6 but with a smaller Ninja puff to make a smaller change of density during this puff. This was successful. Shot 8 had probes and no X-point GPI puff. Shot 9 was an attempt to do B=2.75 T, I=0.4 MA, but had an early disruption. Shot 10 was at 2.75 T, 0.4 MA and relatively low density. This was successful, although there was an unexplained event at 1.4 sec which took a notch out of the current (most likely a ufo). Shot 10 had no probes and no X-point GPI puff. Shot 11 was like shot 10at 2.75 T, successful except for a ufo at 0.9 sec, just after a probe plunge. Shot 11 had probes but no X-point GPI puff. Shot 12 was an attempt to do 2.75 T again but had an early disruption.

Entered: May 4 2007 08:22:16:730PM

Author: Jerry Hughes

We got three shots with density ramps at 4.1, 4.0, and 3.9T. We obtained suitable ECE cutoff data in both GPC and GPC2, and were able to calculate updated calibration coefficients for the core Thomson scattering. They look fairly reasonable for the core polychromators, and less so for the older spectrometers. These core TS calibrations will be in the model tree as of tonight.

Physics Operator Summaries

Entered: May 4 2007 05:27:15:507PM

Author: Jim Irby

We had trouble today with blown fuses in the OH1 supply that cost a couple of hours of run time, followed by broken limit switch on a Ross relay that is part of the OH1 resistance measurement that cost another 90 minutes or so. Since we could not tell if the relay was open or closed to the OH bus, we had to fix it before we could operate the machine. The machine startup was robust when we had all the hardware functioning. We had only one fizzle following a disruption on shot 14. We had another distruption on shot 16, but there was a long delay following this discharge to fix the Ross relay problem. Note that there is a 3 kA offset in the DPCS setting for the TF: If you want 111 kA you need to program 108 kA. So on shot 14 I got 4.1 instead of 4.0 T. Score ----- plasmas 1,2,3,4,5,6,7,8,9,10 11,12,14,16,19 fizzle 15,18 test 13,17

Session Leader Comments
May 4 2007 09:12:09:823AM	1070504001	Stewart Zweben	try for repeat of 1060412026 looks good, but density a little higher than desired
May 4 2007 09:39:23:443AM	1070504001	Stewart Zweben	about same as shot 1, 5.4T, 0.8 MA density a little higher than hoped but OK for low density point in scan
May 4 2007 10:05:59:657AM	1070504002	Stewart Zweben	about same as shot 1, 5.4T, 0.8 MA density a little higher than hoped but OK for low density point in scan
May 4 2007 10:21:06:867AM	1070504003	Stewart Zweben	try for higher density point at 5.4T, 0.8 MA density perhaps a bit higher than desirable OK for high density point in scan but only one scan of probe
May 4 2007 10:20:31:350AM	1070504004	Stewart Zweben	try for higher density point at 5.4T, 0.8 MA a little lower density than shot 3 but OK two scans of probe OK
May 4 2007 10:37:18:983AM	1070504004	Stewart Zweben	try for higher density point at 5.4T, 0.8MA good high density point for this B two scans of probe for this shot
May 4 2007 10:36:06:170AM	1070504005	Stewart Zweben	try for higher field point at 6.75T, 1.0 MA low density point, but a little higher than expected no scans of probe for this shot
May 4 2007 11:14:52:323AM	1070504006	Stewart Zweben	repeat of higher field point at 6.75T, 1.0 MA low density point, but a little higher than expected two scans of probe for this shot
May 4 2007 11:26:06:690AM	1070504007	Stewart Zweben	disrupted early no fluctuation data
May 4 2007 11:40:30:867AM	1070504008	Stewart Zweben	good shot at 6.75 T, 1 MA two probe scans no puff at Bay K to get lower density after 0.8 sec
May 4 2007 12:06:48:533PM	1070504009	Stewart Zweben	try at 2.7 T, 0.4 MA point with low density disrupted early
May 4 2007 12:17:07:973PM	1070504010	Stewart Zweben	good shot at 2.7 T, 0.4 MA late in shot no probe scans, no bay k puff
May 4 2007 12:27:13:540PM	1070504011	Stewart Zweben	good shot at 2.7 T, 0.4 MA late in shot two probe scans, no bay k puff
May 4 2007 12:40:24:513PM	1070504012	Stewart Zweben	try at at 2.7 T, 0.4 MA disrupts early
May 4 2007 03:06:09:890PM	1070504013	Jerry Hughes	Test
May 4 2007 03:29:37:680PM	1070504014	Jerry Hughes	Plasma attempt. Bt=4.1T Ip=0.8MA Gas feedback looks about right, but NINJA puff at 0.8s was too much, too fast. Got several cutoffs. Repeat with Bt=4.0T, no NINJA.
May 4 2007 03:30:11:413PM	1070504015	Jerry Hughes	Fizzle
May 4 2007 03:52:55:610PM	1070504016	Jerry Hughes	Good cutoffs available. Too much puffing from main gas valve. Density program will be changed for next shot to insure a more gradual increase; programmed nl04 to 2.0x10^20, then back down at 1.1s.
May 4 2007 04:35:25:050PM	1070504017	Jerry Hughes	No power shot. Made a slight lateral adjustment to laser 2 for next shot . . . if we get one!
May 4 2007 05:11:29:890PM	1070504018	Jerry Hughes	Fizzle. Good things come to those who wait.
May 4 2007 06:55:04:680PM	1070504019	Jerry Hughes	Bonus shot. Good cutoffs, once again. Density still overshoots.

Physics Operator Comments
May 3 2007 03:37:32:137PM		Jim Irby	SL PO MP#429 Limiter Ohmic Turbulence (1/2 d) Zweben Irby And MP#296 Thomson/ECE density calibration (1/2d) Hughes,Hubbard Irby ECDC overnight in D2, pressure=2e-4 Torr. Rmin/Rdwell/Rmax = 44/45/103 cm. Bake at 60 C. Power systems as on 1070503025. A-coil configuration: normal [Dtop -Dbot -Jtop +Jbot] and 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) leave NINJA as is DISABLED Enable the following gate valves and shutters: ECE, VUV, Z-bolo shutters Torvac setup: Gate valves open during pulse.
May 4 2007 08:56:22:333AM		Jim Irby	ECDC ran until 6:20 this morning Loaded seg 2 of 1070503028 into seg 3 for mp 296 Loaded seg 4 of 1060412026 into seg 2 round inner wall limited plasma for mp 429 recalulated magnetics predictors to account for loss of flux loop in seg 2 loaded wire 14 from seg 2 of 1070503028 into wire 14 of seg 2 --- replaced z-meter density control with nl_04 control nl_04 density request to 4e19/m^2 at 0.5 s in seg 2
May 4 2007 09:22:51:093AM	1070504001	Jim Irby	turned on seg 2 for first shot --- circular inner wall limited plasma into rampdown plasma shape looks good
May 4 2007 09:40:06:710AM	1070504002	Jim Irby	argon (pg1) from 0.3 to 0.4 s dropped early nl_04 density request a little density into rampdown density a little lower enabled pg1 (argon) for next shot
May 4 2007 10:06:18:250AM	1070504003	Jim Irby	nl_04 request to 1e20/m^2 TF invert to 1.6 s and fizzle gate to 1.8 s --- get rid of TF coax protection waggle plasma for 1.6 s --- 500 kA disruption density rise too high --- overshot to 1.2e20/m2 OH2s reached PLC current limits (26 kA)
May 4 2007 10:15:36:207AM	1070504004	Jim Irby	slowed down density rise and dropped peak nl_04 request to 0.9e20/m2 plasma for 1.63 s still reached oh2 PLC limits (-26 kA)
May 4 2007 10:54:42:600AM	1070504005	Jim Irby	Bt to 6.75 T --- 188.8 kA --- PLC limits to 192 kA Ip request to 1 MA nl_04 density request to 4e19/m^2 enabled DNB for this shot plasma into rampdown --- got field and current
May 4 2007 11:22:38:140AM	1070504006	Jim Irby	power room access before this shot to check fuses --- no problems found Amanda puts amps back in ECE lab OH2 current limits from -26 to -27 kA plasma into rampdown ECE seems to be okay seems that fsp is injecting some dust
May 4 2007 11:37:48:693AM	1070504007	Jim Irby	no DPCS changes, but JT is reducing NINJA puff injection beginning by 220 ms resulted in disruption at 259 ms something came in or heated up --- neuts/hards rising early
May 4 2007 11:45:12:290AM	1070504008	Jim Irby	no changes --- try again plasma into rampdown probe throws up dust again -- probe scans seen on neuts/hards
May 4 2007 12:05:33:720PM	1070504009	Jim Irby	TF request in seg 2 to -75 kA --- PLC current limit back to -165 kA Ip request in seg 2 to -400 kA density request remains at 4e19/m^2 disruption at 0.35 s --- not clear why
May 4 2007 12:22:07:070PM	1070504010	Jim Irby	raised density request a little before 300 ms, repeat otherwise plasma into rampdown -- got field and current large injection at 1.4 s notched out current and density
May 4 2007 12:34:50:277PM	1070504011	Jim Irby	repeat plasma into rampdown; still had a density/current drop but earlier
May 4 2007 01:15:07:370PM	1070504012	Jim Irby	repeat lost plasma by 0.45 s; disruptive by 0.3 s going into power room: self power 0h1 com failure oh2 u and l check fuses 6 fuses lost on oh1 will need to hi-pot
May 4 2007 03:14:13:533PM	1070504013	Jim Irby	OH1 test --- 2 kA PLC looks good
May 4 2007 03:21:05:833PM	1070504014	Jim Irby	try for plasma disruption at 1.34 s --- density about 2.2e20/m^2 with help from NINJA a couple of large objects fall in an bounce --- wide 2
May 4 2007 03:34:24:883PM	1070504015	Jim Irby	NINJA off for this shot TF current request for last shot was 111 kA, but I got 114 kA and 4.1 T instead of 4.0 T ---- dropped request to 111*4.0/4.1 or 108.1 kA fizzle --- didn't drop fill following the disruption
May 4 2007 03:50:22:937PM	1070504016	Jim Irby	prepuff from 21 to 20 ms --- just to have done something plasma for 1.33 s --- 4.01 T
May 4 2007 03:59:04:457PM	1070504017	Jim Irby	changed density programming to bring up density more slowly and also to strart back down at 1.1 s. reduced prepuff to 19 ms **** no power shot ***** **** Ross relay status readback indeterminant **** **** Will require power room access ****
May 4 2007 05:15:10:313PM	1070504018	Jim Irby	dropped TF to 3.9T (105.7kA in DPCS) fizzle
May 4 2007 05:44:56:780PM	1070504019	Jim Irby	one last try --- no DPCS changes plasma for 1.36 s density did rise more slowly but still overshot to 2.2e20/m^2. Density somewhat lower following 1.1 s as programmed, but still remained too high.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:04:06:667AM	Plasma	Ok
2	09:32:30:957AM	Plasma	Ok
3	09:47:36:323AM	Plasma	Ok
4	10:06:16:673AM	Plasma	Ok
5	10:32:29:963AM	Plasma	Ok
6	11:06:32:760AM	Plasma	Ok
7	11:23:17:813AM	Plasma	Ok
8	11:36:38:113AM	Plasma	Ok
9	11:53:45:043AM	Plasma	Ok
10	12:07:55:860PM	Plasma	Ok
11	12:22:46:710PM	Plasma	Ok
12	12:36:53:120PM	Plasma	Bad	PF breaker opened at end of plasma
13	03:01:19:357PM	Test	Ok	OH1 PLC Test
14	03:12:04:970PM	Plasma	Ok
15	03:27:32:943PM	Plasma	Ok
16	03:40:56:357PM	Plasma	Ok
17	03:55:17:707PM	Plasma	Bad	Bad Ross Relay Status on OH1
18	05:07:53:483PM	Plasma	Ok
19	05:20:02:143PM	Plasma	Ok

System Availability

May 4 2007 09:03:43:790AM

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 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 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. May 03 2007 10:22AM (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 yes Tested 1.8MW to IDC, 5/1/07. Problems with 8B and 23. May 01 2007 10:59AM (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 swept frequency channel is connected, bypassing the 110GHz board. The waveform generator voltage is 6.57V (129GHz). 60, 88, 88L and 88U GHz channels are connected and being tested. Others are disconnected. May 04 2007 12:22AM (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 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, 11 spatial channels. Density is not calibrated yet. Temperatures should be fairly reliable. Additional spatial channels will be added over the next several weeks. May 01 2007 08:27AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes TS - Edge yes Temperature calibration is complete. Density is uncalibrated. Apr 24 2007 08:20PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes Vispec no visible spectrometer between 350 and 670 nm, 4 spatial channels May 01 2007 08:58AM (agraf) Alex Graf Visible Spectrometer agraf

May 4 2007 03:00:59:467PM

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 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 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. May 03 2007 10:22AM (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 yes Tested 1.8MW to IDC, 5/1/07. Problems with 8B and 23. May 01 2007 10:59AM (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 swept frequency channel is connected, bypassing the 110GHz board. The waveform generator voltage is 6.57V (129GHz). 60, 88, 88L and 88U GHz channels are connected and being tested. Others are disconnected. May 04 2007 12:22AM (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 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, 11 spatial channels. Density is not calibrated yet. Temperatures should be fairly reliable. Additional spatial channels will be added over the next several weeks. May 01 2007 08:27AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes TS - Edge yes Temperature calibration is complete. Density is uncalibrated. Apr 24 2007 08:20PM (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

May 4 2007 03:54:56:220PM

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 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 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. May 03 2007 10:22AM (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 swept frequency channel is connected, bypassing the 110GHz board. The waveform generator voltage is 6.57V (129GHz). 60, 88, 88L and 88U GHz channels are connected and being tested. Others are disconnected. May 04 2007 12:22AM (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 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, 11 spatial channels. Density is not calibrated yet. Temperatures should be fairly reliable. Additional spatial channels will be added over the next several weeks. May 01 2007 08:27AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes TS - Edge yes Temperature calibration is complete. Density is uncalibrated. Apr 24 2007 08:20PM (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