Alcator C-Mod Run 1070312 Information

Miniproposals

Operators
Session leader(s):
Physics operator(s):	Steve Wolfe
Engineering operator(s):	Bill Cochran

Engineering Operator Run Comment
Power System tests

Session Leader Plans

Physics Operators Plans

Entered: Mar 11 2007 03:37:39:000PM

Author: Steve Wolfe

Physop plan for 1070312 ----------------------- Power System tests possibly followed by MP465 WASP setup activities (pre-plasma tests only) MP298a C-Mod Startup The main purpose of this run is Engineering Power System tests. Most testing will be carried out under PLC control. DPCS will optionally be used to perform double swing test of the EF4 supply and provide input for the Chopper (EFC) system. Gas puff tests will also be carried out under DPCS control, as allowed by the Engineering Operator. Gas Setup: ---------- fill B-top 6psi D2 Hybrid Disabled (PG4) fill B-side lower 1 psi Argon Hybrid Disabled (PG1) fill B-side Upper as is, Hybrid Disabled (PG2) fill B-main 40psi D2 Hybrid Disabled (PG3) NINJA pumped out, Disabled * Valves will be Enabled for testing during the course of the day. Shot sequence for the power system testing will be determined by the Engineering operator. Additional TF tests are requested prior to plasma operation for verification of the correct bias current sign for the inner wall WASP probe (MP#465). Session Leader for these shots will be either B. LaBombard or N. Smick. There will likely be a cell access and 30 minute delay during these tests to change a driver from A-port WASP to K-port WASP. If we get to it, we will attempt to begin plasma operation under the long-standing MP#298a "C-Mod Startup". The following engineering setup should be used: ******************************************************************** Power Systems as on 1060613015 Acoil Configuration +Dtop -Dbot -Jtop +Jbot, Enabled Check on TF invert time relative to back-porch programming (see Irby) Gas setup as above, except ENABLE B-top and B-main. TORVAC: Pumping Gate valves open Enable the following gate valves and shutters, assuming no vacuum problems: ECE, Z-bolo Check with Terry and/or Reinke before opening VUV ICRF setup: None ******************************************************************** Physop plan for power tests: ---------------------------- Draw gas and p.s. waveforms as requested. Verify magnetics signals and DPCS inputs; special attention to f11 flux loop. Look for current in cryopump hardware near EF1 pocket on commutation tests (probably hard to see until we try for a null though, maybe not then). Physop plan for MP#298a: ------------------------ Load from 1060613015 (first shot after last field reversal to normal direction, LSN, 5.4T). Probably get a dpcs config warning - verify dpcs_fizzle source shot for normal current direction (1060308026). Reduce Ip from 1MA to 800kA, change NL04 from 9e19 to 6e19 (assuming TCI is working); if TCI not working, then turn off NL04 feedback and set Segment 2 pre-programmed PG3 to zero volts, after an initial puff. Tune startup as required, try for plasma shots to clean up machine. Consider lower Ip target (600kA) depending on results.

Session Leader Summaries

Physics Operator Summaries

Entered: Mar 12 2007 04:59:18:240PM

Author: Steve Wolfe

PO Summary for Monday, March 12, 2007 Power System tests EO: Dekow, Cochran PO: Wolfe SL: Nobody Not much was accomplished today. Essentially the whole day was spent trying to get the Access Control to function. As of 17:00, this was still not successful. There are at least two issues. Some values need to be forced in order to put the cell into SEARCH mode, and after the SEARCH it was not possible to place the Cell into SECURE access. It is possible to place the power room into SECURE mode after the search, but after that it is not possible to place it into CONTROLLED or SEARCH; the only state transition that the power room will accept from SECURE is to FREE. The diagnostic labs access control seems to be working. We did not attempt to simulate a breach however. Finally, the big_board replacement display echoes all the access states except for FREE incorrectly: SEARCH (state 2) shows up as SECURE, SECURE (state 3) shows as CONTROL, and CONTROL (state 4) shows as SEARCH. This is independent of the other problem and seems to just be an issue of translation in the big board display. We took three test shots, one just for data system checkout, and two gas tests, of pg4 (pre-puff) and pg3 (main fueling). PG4 seems to be working ok, with 20msec puff giving a ratiomatic reading of 0.1mTorr. A short pg3 puff in segment 1 did not produce a visible change on the ratiomatic, but a 100msec long, 100V puff in seg 2 gave a reading of 3mTorr. Probably the valve needs exercising. We did not test pg1 (argon puff) or pg2 (He3). Tom fixed a setup issue with the alternator analysis routines in the dispatch cycle after the first test shot, and these ran correctly on shots 2 and 3. There is still a problem with the Physop READY bit. This is getting correctly set back to "HOLD" during Check, but on the Pulse->Recool transition it reverts to "READY", so it is not operative (i.e. the permissive is always on) for the next shot. Yuri and Joe should work on fixing that after they get the Access Control bugs worked out. The CAMAC crate in the Active MHD rack has a bad power supply, and was bypassed to enable the TCI and other signals on that highway to operate. Dave B. will replace the supply before tomorrow's run. Cooling seemed to be functioning well. The alternator was a little slow getting up to speed in the morning, but since we never needed it this wasn't an issue. They were allowed to start shutting down at 16:00, when it was apparent that we weren't going to get to testing any of the 13.8kV supplies.

Session Leader Comments

Physics Operator Comments

Mar 12 2007 08:07:19:760AM Steve Wolfe
Bring up PCS before run. Setup in segs 1 and 2 are "TF Scanner, gas test" from last Monday (Irby). May as well leave them for now. Do a load/noclean just to test. This is the first load since the changeover to Daylight time. ************************************************************ Filling in configuration / 2-JUN-2006 18:29:49.00/ Filling in DPCS configuration / 2-JUN-2006 18:27:32.00/ about to ask alcdata to copy /home/wolfe/pcs_scratch/pcs_model to /cmod/trees/models/pcs/pcs_model about to ask alcdata to copy /home/wolfe/pcs_scratch/dpcs_model to /cmod/trees/models/dpcs/dpcs_model Load at 12-Mar-2007 08:05:44.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done *************************************************************** looks right.

Mar 12 2007 01:07:55:527PM Steve Wolfe
Status update: As of 13:00, they are still working on the access control system, which is not allowing the cell to be placed in secure state. Note that the big board display for access is not showing the correct states, other than for FREE. That is not the main problem however.

Mar 12 2007 01:59:45:370PM 1070312001 Steve Wolfe
Shot#1: Data system cycle only. They are still working on access control. Cycle ran through. The PHYSOP Ready display did not get put back to Hold. This is supposed to happen in CHECK or INIT I think. I asked to have it fixed last week. Looks like the fizzle detector is still coming in late at 1.7sec Jim reports not getting alternator data.

Mar 12 2007 03:18:16:947PM 1070312001 Steve Wolfe
The fizzle detector on shot 1 seems to have been set at [.08,1.8], as it was on shot 2. However, the dpcs outputs don't look right. That's because I was looking at the wrong traces. Somehow my Mout scope was looking at a test shot from last week. When I put the right shot in, it shows the f.d. coming in at the right time.

Mar 12 2007 02:19:42:963PM 1070312002 Steve Wolfe
Shot#2: Change PG4 pulse to 20msec in seg1, zero PG3 in seg1, leave as is in seg2. Load at 12-Mar-2007 14:01:01.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done We are set up for a gas test on pg4 and pg3. We will be making another attempt to lock up through access control.

Mar 12 2007 03:00:30:990PM 1070312002 Steve Wolfe
Shot#2: Gas test. Access still not working. This time the physop bit went back to HOLD in check. Maybe it was bypassed the first time? Got gas/ And the Physop ready goes back to READY! That's what happened. Fizzle detector seems to have been at 0.08 this time. Gary says he didn't write it. Ratiomatic is off, but I saw the pressure go to the high six range. Gary says the alternator analysis jobs worked this time.

Mar 12 2007 03:51:31:760PM 1070312003 Steve Wolfe
Shot#3: Put a short pg3 puff in seg1 (if we ever get another cycle.) Another gas test, still no access control. Got gas. Gary had moved the f.d. back out to 1.7sec this time, so we got both puffs. Actually, it doesn't look like the pressure responded to the one in seg1. Valve may need exercising. The pre-puff ends up with a fill of .1mTorr with a 20msec puff.

Engineering Operator Comments

Shot Time Type Status Comment

1 01:53:07:573PM Test Ok

2 02:50:58:427PM Test Ok

3 03:45:04:757PM Test Ok

System Availability

Mar 12 2007 01:52:31:277PM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no Feb 05 2007 04:33PM (twf) Joe Snipes Active MHD Antenna sears,snipes
ASP no Changing probe head Jan 14 2007 02:28PM (g) Brian LaBombard A-Port Scanning Probe labombard
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 Preparing external amplifiers and DAQ. Midplane/2-Pi ready soon after first plasma, 2D ready by start of science runs. Mar 06 2007 01:08PM (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
CXRS no 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. Mar 06 2007 08:09PM (rowan) 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 no Jan 14 2007 01:46PM Bob Granetz Diagnostic Beam beals,granetz
FRC-ECE yes Only channel 17-32 available until after power test Feb 21 2007 12:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
FSP no Jan 23 2007 02:23PM (g) Brian LaBombard F-Port Scanning Probe labombard
GPC no Jan 23 2007 02:23PM (g) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 no Jan 14 2007 01:45PM Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Not available 3/1-3/6 Jan 23 2007 02:24PM (g) 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 no Jan 23 2007 02:24PM (g) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna no 80.5 MHz. control/data system upgrade ongoing. Feb 27 2007 03:52PM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna no 80 MHz. control/data system upgrade. FFT installation, etc. Feb 27 2007 03:53PM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna no control/data system, crowbar cabinet, frequency tuning from 70 to 78 MHz Feb 27 2007 03:53PM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid no Available after 3/20 Jan 23 2007 02:24PM (g) Ron Parker Lower Hybrid dterry,parker
LPI no Jan 14 2007 02:03PM Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no Preparing external amplifiers and DAQ. Midplane ready soon after first plasma, 2D ready by start of science runs. Mar 06 2007 01:09PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson no will check out system on shots with plasma Mar 11 2007 10:36PM (terry) Jim Terry VUV Spectrometer reinke,terry
Michelson no Mar 06 2007 10:57AM Amanda Hubbard ECE Te Profiles hubbard,schmidt
MSE no Jan 23 2007 02:24PM (g) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons no Calibrated detectors are not yet positioned correctly Mar 06 2007 03:40PM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards no Mar 11 2007 12:05PM Jim Irby irby
NINJA yes all capillaries displayed by the NINJA_CONTROL GUI are available Mar 11 2007 10:29PM (terry) Brian LaBombard NINJA gas puff labombard,terry
PCI no Jan 14 2007 02:03PM Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Plasma TV no WIDE1 and DIV (without an ND filter) are almost ready; cell access of a few hrs is needed. WIDE2 awaits completion of new camera holder; it should be available after 3/13/2007. Other views will be brought up as cell access permits. Mar 11 2007 10:35PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Mar 11 2007 12:07PM Jim Irby irby
Reflectometer no Mar 05 2007 05:34PM (dominguez) Earl Marmar Reflectometer dominguez,marmar
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 no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Core jwhughes
TS - Edge no System being re-assembled Mar 06 2007 08:55AM (jwhughes) Jerry Hughes Thomson Scattering - Edge jwhughes
WASP no Not yet debugged Mar 05 2007 05:44PM (nsmick) Brian LaBombard Inner Wall Probe labombard,nsmick

Physics Operator Comments
Mar 12 2007 08:07:19:760AM		Steve Wolfe	Bring up PCS before run. Setup in segs 1 and 2 are "TF Scanner, gas test" from last Monday (Irby). May as well leave them for now. Do a load/noclean just to test. This is the first load since the changeover to Daylight time. ********************************************************** Filling in configuration / 2-JUN-2006 18:29:49.00/ Filling in DPCS configuration / 2-JUN-2006 18:27:32.00/ about to ask alcdata to copy /home/wolfe/pcs_scratch/pcs_model to /cmod/trees/models/pcs/pcs_model about to ask alcdata to copy /home/wolfe/pcs_scratch/dpcs_model to /cmod/trees/models/dpcs/dpcs_model Load at 12-Mar-2007 08:05:44.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done ************************************************************* looks right.
Mar 12 2007 01:07:55:527PM		Steve Wolfe	Status update: As of 13:00, they are still working on the access control system, which is not allowing the cell to be placed in secure state. Note that the big board display for access is not showing the correct states, other than for FREE. That is not the main problem however.
Mar 12 2007 01:59:45:370PM	1070312001	Steve Wolfe	Shot#1: Data system cycle only. They are still working on access control. Cycle ran through. The PHYSOP Ready display did not get put back to Hold. This is supposed to happen in CHECK or INIT I think. I asked to have it fixed last week. Looks like the fizzle detector is still coming in late at 1.7sec Jim reports not getting alternator data.
Mar 12 2007 03:18:16:947PM	1070312001	Steve Wolfe	The fizzle detector on shot 1 seems to have been set at [.08,1.8], as it was on shot 2. However, the dpcs outputs don't look right. That's because I was looking at the wrong traces. Somehow my Mout scope was looking at a test shot from last week. When I put the right shot in, it shows the f.d. coming in at the right time.
Mar 12 2007 02:19:42:963PM	1070312002	Steve Wolfe	Shot#2: Change PG4 pulse to 20msec in seg1, zero PG3 in seg1, leave as is in seg2. Load at 12-Mar-2007 14:01:01.00 Open tree /home/wolfe/pcs_scratch -1 Open tree done We are set up for a gas test on pg4 and pg3. We will be making another attempt to lock up through access control.
Mar 12 2007 03:00:30:990PM	1070312002	Steve Wolfe	Shot#2: Gas test. Access still not working. This time the physop bit went back to HOLD in check. Maybe it was bypassed the first time? Got gas/ And the Physop ready goes back to READY! That's what happened. Fizzle detector seems to have been at 0.08 this time. Gary says he didn't write it. Ratiomatic is off, but I saw the pressure go to the high six range. Gary says the alternator analysis jobs worked this time.
Mar 12 2007 03:51:31:760PM	1070312003	Steve Wolfe	Shot#3: Put a short pg3 puff in seg1 (if we ever get another cycle.) Another gas test, still no access control. Got gas. Gary had moved the f.d. back out to 1.7sec this time, so we got both puffs. Actually, it doesn't look like the pressure responded to the one in seg1. Valve may need exercising. The pre-puff ends up with a fill of .1mTorr with a 20msec puff.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	01:53:07:573PM	Test	Ok
2	02:50:58:427PM	Test	Ok
3	03:45:04:757PM	Test	Ok