Alcator C-Mod Run 1021004 Information

Back to runs

Miniproposals
Miniproposal:322
Date Filed: 8/29/2002
Title:MSE Calibration II
First Author:Howard Yuh
Session Leader:Howard Yuh (shots 1-32)

Operators
Session leader(s):Howard Yuh
Physics operator(s):Joseph Snipes
Engineering operator(s):Ed Fitzgerald,Gary Dekow

Engineering Operator Run Comment
MP 322: MSE Calibration II; PO: Snipes; SL: Yuh; EO: Dekow/Fitz

Session Leader Plans

Physics Operators Plans

Session Leader Summaries
Entered: Jul 7 2004 03:49:31:117PM
Author: To Be Determined
Run Summary for 1021004 - MSE Calib II

1021004 Run Plan - MSE Calibration, Episode II...(The long awaited sequel)
Engineering Instructions:
Enable all trees EXCEPT RF. Enable DNB Gate valve. Set fizzle detector back (see SL or Rowan)

PHYSOP Instructions:
Load shot 1020627006, and DOUBLE the Prefill length. G-Side Ratio should be 1-1.5 mTorr.
Make all TF/EF Flattops for 220ms.
Follow TF/EF4/EF3 settings according to table below for each shot.
Move to the next one when SL declares success for each setting.

PHYSOP NOTE:
Waveforms are minimally modified. EF PS are being toggled.
To reproduce shots in future, will need to turn off same PS's
and not rely on waveforms alone.

DNB Instructions:
Fire at 0.15s for entire day,
Condition to good performance be the start of the run.
Fire according to beam energies below (Eb). No Modulations.

Results:

Shots 001,002 were tests.
MSE run starts on shot 003.

;# C-Mod Shot TF EF4 EF3 Spec Fbr Eb Polarizer
;0 1021004003 5.3T -1kA 0kA None 50keV In
;0 1021004004 5.3T -1kA 0kA 12 50keV In
;1 1021004005 5.3T 0kA 0kA 8(6) 50keV In
;2 1021004006 5.3T 2kA 0kA 7 50keV In
;3 1021004007 5.3T 4kA 0kA 6(8) 50keV In
;4 1021004008 5.3T 5kA 0kA None (FAULT) 50keV In
;5 1021004009 5.3T 5kA 6kA None 50keV In
;TF Change-----------------------------------------------------------------
;6 1021004010 4.5T 5kA 6kA None 50keV In
;7 1021004011 4.5T 5kA 0kA None 50keV In
;8 1021004012 4.5T 4kA 0kA 6(8) 50keV In
;9 1021004013 4.5T 2kA 0kA 7 50keV In
;10 1021004014 4.5T 0kA 0kA 8(6) 50keV In
;11 1021004015 4.5T -1kA 0kA 12 50keV In
;12 1021004016 5.3T 5kA 3kA None 50keV In
;TF Change-----------------------------------------------------------------
;12B 1021004017 5.3T 5kA 3kA 5 50keV In
;TF Change-----------------------------------------------------------------
*12C 1021004018 4.5T 5kA 3kA 5 50keV Out/PEM off
Repeat for spectra statistics
;12C 1021004019 4.5T 5kA 3kA 5 50keV Out/PEM off
;TF Change-----------------------------------------------------------------
;13 1021004020 5.3T 5kA 3kA 5 50keV Out/PEM off
Repeat for spectra statistics
;13 1021004021 5.3T 5kA 3kA 5 50keV Out/PEM off
Trying to get better spectra
;13A 1021004022 5.3T 5kA 3kA 4 50keV Out/PEM off
Repeat
;13B 1021004023 5.3T 5kA 3kA 4 (FAULT) 50keV Out/PEM off
Repeat for beam fault
;13C 1021004024 5.3T 5kA 3kA 4 50keV Out/PEM off
Repeat for statistics
;13D 1021004025 5.3T 5kA 3kA 4 50keV Out/PEM off

--------------------
Skipping original 40 keV shots 14,15
due to quality of spectra incompatible with measuring feature widths
--------------------

Use another higher photon fiber to try to get good spectra.
;14 1021004026 5.3T 5kA 3kA 6 50keV Out/PEM off
Better spectra, repeat one last time for statistics
;14A 1021004027 5.3T 5kA 0kA 6 50keV Out/PEM off
;TF Change-----------------------------------------------------------------
;15 1021004028 2.7T 0kA 0kA None 50keV In
;16 1021004029 2.7T 3kA 0kA None 50keV In
;17 1021004030 2.7T 5kA 0kA None 50keV In
;18 1021004031 2.7T 5kA 3kA None 50keV In

Repeat settings 0-11, 16-20 (in that order) for statistics if time allows.
Starting with:
Repeat of shot 4
;4 1021004032 5.3T 5kA 0kA None 50keV In
All we had time for.

Physics Operator Summaries
Entered: Jul 7 2004 04:37:16:457PM
Author: To Be Determined
MP 322: MSE Calibration II

Session leader: H. Yuh
Physics operator: J. Snipes

Power Systems as on 1020627013 ensure fizzle detector set to 1.9 s

ECDC overnight in D2 at 2e-4 Torr, stopping by 07:00.

Run begins at 09:00 and ends at 17:00.

Gas setup:
fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 1 psi Ar Hybrid enabled (PG1)
fill B-side upper with 10 psi D2 Hybrid DISABLED (PG2) (for ECDC)
fill C-side with 30 psi D2 Hybrid enabled (PG3)
leave J-Bottom as is Hybrid DISABLED (PG5)

Enable the following gate valve, assuming no vacuum problems: DNB

Close gate valves during the pulse to avoid pumping out the torus.

Run Plan: All trees enabled except RF. G-side ratiomatic should be at 1 - 1.5
mTorr. All TF and EF flattops to be 220 ms. There will be a series of TF and
EF test shots with gas with the DNB firing at 0.15 s. There will be no plasma
shots.

Summary: Except for a brief data systems problem at the beginning and a cooling
water failure in the middle, the power supplies and gas ran very well. There
were 32 pulses all duds!

Shot 1: Turn off EF3 to avoid induced currents changing the vertical field
from EF4. Copied shot 1020627006 and doubled the prefill to 332 ms.
ITF = 150 kA out to 0.25 s. EF4 at -1 kA out to 0.25 s. Data system
failure. No response. No power.
Shot 2: Attempted to repeat. EFC fired and needs to be off. TF did not fire
and needs to be on. EF4 worked beautifully. The gas worked fine.
Shot 3: Repeat turning off all power supplies other than EF4 and TF. Good.
Shot 4: Repeat. Good.
Shot 5: Turned off EF4 supply as well to have TF and gas only.
Shot 6: Turned EF4 back on and set it to +2 kA.
Shot 7: EF4 set to +4 kA.
Shot 8: EF4 set to +5 kA.
Shot 9: Copied shot 1020627012 which has EF4 set to +5 kA, EF3 set to 6 kA.
Changed the prefill to 832 ms duration as in the previous shots.
Shot 10: TF current set to 127 kA beginning rampdown at 0.25 s. EF4 at 5 kA,
EF3 at 6 kA.,prefill at 832 ms.
Shot 11: Turned off EF3 and repeated.
Shot 12: EF4 to 4 kA
Shot 13: EF4 to 2 kA
Shot 14: TF and gas only. EF3 and EF4 off.
Shot 15: EF4 at -1 kA.
Shot 16: EF4 at 5 kA, EF3 at 3 kA, and ITF at 150 kA.
Shot 17: Repeat.
Shot 18: ITF set to 127 kA.
Shot 19: Repeat.
Shot 20: Raise ITF to 150 kA.
Shot 21: Repeat. Cooling water failure after this shot. Delay to investigate.
Shot 22: Repeat.
Shot 23: Repeat.
Shot 24: Repeat.
Shot 25: Repeat.
Shot 26: Repeat.
Shot 27: Turn off EF3. EF3 disabled but still conducting!? Got 2 kA on EF3
with some strange shape.
Shot 28: Turn off EF3 and EF4. Lower ITF to 72 kA.
Shot 29: Turn on EF4 and set to 3 kA.
Shot 30: EF4 set to 5 kA.
Shot 31: EF4 set to 5 kA and EF3 to 3 kA.
Shot 32: Reloaded shot 1021004008 at ITF = 150 kA, EF4 set to 5 kA and EF3 off.

Session Leader Comments

Physics Operator Comments
Oct 4 2002 09:08:25:860AMJoseph SnipesMP 322: MSE Calibration II

Session leader: H. Yuh
Physics operator: J. Snipes

Power Systems as on 1020627013 ensure fizzle detector set to 1.9 s

ECDC overnight in D2 at 2e-4 Torr, stopping by 07:00.

Run begins at 09:00 and ends at 17:00.

Gas setup:
fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 1 psi Ar Hybrid enabled (PG1)
fill B-side upper with 10 psi D2 Hybrid DISABLED (PG2) (for ECDC)
fill C-side with 30 psi D2 Hybrid enabled (PG3)
leave J-Bottom as is Hybrid DISABLED (PG5)

Enable the following gate valve, assuming no vacuum problems: DNB

Close gate valves during the pulse to avoid pumping out the torus.

Run Plan: All trees enabled except RF. G-side ratiomatic should be at 1 - 1.5
mTorr. All TF and EF flattops to be 220 ms. There will be a series of TF and
EF test shots with gas with the DNB firing at 0.15 s. There will be no plasma
shots.
Oct 4 2002 09:15:38:063AM1021004001Joseph SnipesShot 1: Turn off EF3 to avoid induced currents changing the vertical field
from EF4. Copied shot 1020627006 and doubled the prefill to 332 ms.
ITF = 150 kA out to 0.25 s. EF4 at -1 kA out to 0.25 s. Data system
failure. No response. No power.
Oct 4 2002 09:40:35:540AM1021004002Joseph SnipesShot 2: Attempted to repeat. EFC fired and needs to be off. TF did not fire
and needs to be on. EF4 worked beautifully. The gas worked fine.
Oct 4 2002 09:50:15:483AM1021004003Joseph SnipesShot 3: Repeat turning off all power supplies other than EF4 and TF. Good.
Oct 4 2002 10:05:50:787AM1021004004Joseph SnipesShot 4: Repeat. Good.
Oct 4 2002 10:31:04:983AM1021004005Joseph SnipesShot 5: Turned off EF4 supply as well to have TF and gas only.
Oct 4 2002 10:59:14:737AM1021004006Joseph SnipesShot 6: Turned EF4 back on and set it to +2 kA.
Oct 4 2002 10:59:51:800AM1021004007Joseph SnipesShot 7: EF4 set to +4 kA.
Oct 4 2002 11:00:33:693AM1021004008Joseph SnipesShot 8: EF4 set to +5 kA.
Oct 4 2002 11:16:48:260AM1021004009Joseph SnipesShot 9: Copied shot 1020627012 which has EF4 set to +5 kA, EF3 set to 6 kA.
Changed the prefill to 832 ms duration as in the previous shots.
Oct 4 2002 11:29:24:307AM1021004010Joseph SnipesShot 10: TF current set to 127 kA beginning rampdown at 0.25 s. EF4 at 5 kA,
EF3 at 6 kA.,prefill at 832 ms.
Oct 4 2002 11:47:55:147AM1021004011Joseph SnipesShot 11: Turned off EF3 and repeated.
Oct 4 2002 12:13:21:423PM1021004012Joseph SnipesShot 12: EF4 to 4 kA
Oct 4 2002 12:29:46:163PM1021004013Joseph SnipesShot 13: EF4 to 2 kA
Oct 4 2002 12:31:54:683PM1021004014Joseph SnipesShot 14: TF and gas only. EF3 and EF4 off.
Oct 4 2002 12:49:37:397PM1021004015Joseph SnipesShot 15: EF4 at -1 kA.
Oct 4 2002 01:19:34:293PM1021004016Joseph SnipesShot 16: EF4 at 5 kA, EF3 at 3 kA, and ITF at 150 kA.
Oct 4 2002 01:20:01:733PM1021004017Joseph SnipesShot 17: Repeat.
Oct 4 2002 01:30:38:460PM1021004018Joseph SnipesShot 18: ITF set to 127 kA.
Oct 4 2002 01:43:19:507PM1021004019Joseph SnipesShot 19: Repeat.
Oct 4 2002 01:55:11:313PM1021004020Joseph SnipesShot 20: Raise ITF to 150 kA.
Oct 4 2002 02:34:50:233PM1021004021Joseph SnipesShot 21: Repeat. Cooling water failure after this shot. Delay to investigate.
Oct 4 2002 02:47:55:687PM1021004022Joseph SnipesShot 22: Repeat.
Oct 4 2002 03:00:08:010PM1021004023Joseph SnipesShot 23: Repeat.
Oct 4 2002 03:18:23:990PM1021004024Joseph SnipesShot 24: Repeat.
Oct 4 2002 03:25:45:850PM1021004025Joseph SnipesShot 25: Repeat.
Oct 4 2002 03:42:59:483PM1021004026Joseph SnipesShot 26: Repeat.
Oct 4 2002 03:58:16:427PM1021004027Joseph SnipesShot 27: Turn off EF3. EF3 disabled but still conducting!? Got 2 kA on EF3
with some strange shape.
Oct 4 2002 04:09:11:700PM1021004028Joseph SnipesShot 28: Turn off EF3 and EF4. Lower ITF to 72 kA.
Oct 4 2002 04:24:34:000PM1021004029Joseph SnipesShot 29: Turn on EF4 and set to 3 kA.
Oct 4 2002 04:55:27:650PM1021004030Joseph SnipesShot 30: EF4 set to 5 kA.
Oct 4 2002 04:56:10:777PM1021004031Joseph SnipesShot 31: EF4 set to 5 kA and EF3 to 3 kA.
Oct 4 2002 05:14:15:977PM1021004032Joseph SnipesShot 32: Reloaded shot 1021004008 at ITF = 150 kA, EF4 set to 5 kA and EF3 off.
Oct 4 2002 05:14:37:977PM1021004032Joseph SnipesSummary: Except for a brief data systems problem at the beginning and a cooling
water failure in the middle, the power supplies and gas ran very well. There
were 32 pulses all duds!

Engineering Operator Comments
ShotTimeTypeStatusComment
109:17:54:033AMTestBadData System Problems
209:27:05:320AMTestBadData System Problems
309:45:28:597AMTestOk
409:58:38:987AMTestOk
510:15:52:150AMTestOk
610:31:37:360AMTestOk
710:45:10:953AMTestOk
810:58:31:187AMTestOk
911:14:34:070AMTestOk
1011:27:52:943AMTestOk
1111:41:07:020AMTestOk
1211:59:04:470AMTestOk
1312:14:31:333PMTestOk
1412:30:02:650PMTestOk
1512:43:10:147PMTestOk
1612:59:05:857PMTestOk
1701:12:10:637PMTestOk
1801:26:15:277PMTestOk
1901:39:27:027PMTestOk
2001:53:15:667PMTestOk
2102:06:38:170PMTestOk
2202:43:46:910PMTestOk
2302:57:11:427PMTestOk
2403:10:19:173PMTestOk
2503:23:32:830PMTestOk
2603:37:10:877PMTestOk
2703:53:47:383PMTestOk
2804:07:15:620PMTestOk
2904:21:23:197PMTestOk
3004:34:55:260PMTestOk
3104:49:21:667PMTestOk
3205:02:44:433PMTestOk