Alcator C-Mod Run 1060322 Information

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Miniproposals

Operators
Session leader(s):
Physics operator(s):Joseph Snipes
Engineering operator(s):Andy Pfeiffer

Engineering Operator Run Comment
MP355 RF Conditioning Session leader: Wukitch Physics operator: Snipes

Session Leader Plans

Physics Operators Plans
Entered: Mar 21 2006 05:16:08:743PM
Author: Joseph Snipes
MP355 RF Conditioning

Session leader: Wukitch
Physics operator: Snipes

Overnight ECDC in D2, and bake at 60 C.

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

Power systems as on 1060321028 (1.0 MA fiducial, 5.4 T, lower single null)

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 + 2 psi Ne Hybrid DISABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
fill NINJA with 12 psi D2 Enabled

Enable the following gate valves and shutters, assuming no vacuum problems:
ECE, VUV, Z-bolo shutters

Torvac setup: Gate valves open

Important Diagnostics: magnetics, standard impurity spectroscopy

-------------------------------------------------------------------------------
ICRF Setup: FMIT#1-4 in run-on by 08:30.
-------------------------------------------------------------------------------

Plan: Continue machine cleanup and ICRF conditioning (including Jport)
in fiducial discharges.

Session Leader Summaries
Entered: Mar 22 2006 08:22:37:837AM
Author: Jim Irby
Static Fill working well

request obtained ratiomatic

5e-6 4.4e-6 2.1e-5
1.5e-5 1.4e-5 6.2e-5
5e-5 4.8e-5 2.1e-4


Physics Operator Summaries
Entered: Mar 22 2006 11:07:34:180AM
Author: Joseph Snipes
This run was a bust from the get go. Or rather, we never got a get go. The alternator problem cancelled the
run after only three gas test shots (before I arrived) that all went well. The alternator diagnostic should be
repaired later today and be ready for tomorrow's run.

Session Leader Comments
Mar 22 2006 08:15:33:820AM1060322001Jim IrbyCycle test to check out the static fill for intra-shot use.

B-Top was used at 6 psi D2, FILL SELECT only, no HYBRID ENABLE.

Asked for 5e-5 Torr controlled by IGT

Got 4.8e-5 to 4.9e-5 Torr with 30.3 volts on piezo.

Ratiomatic indicated about a factor of 4 more pressure: 0.21 mTorr


Mar 22 2006 08:15:19:383AM1060322002Jim IrbyCycle test to check out the static fill for intra-shot use.

B-Top was used at 6 psi D2, FILL SELECT only, no HYBRID ENABLE.

Asked for 5e-6 Torr controlled by IGT.

Got 4.4e-6 Torr with 22 volts on piezo.

Ratiomatic: 0.02 mTorr


Mar 22 2006 08:16:04:757AM1060322003Jim IrbyCycle test to check out the static fill for intra-shot use.

B-Top was used at 6 psi D2, FILL SELECT only, no HYBRID ENABLE.

Asked for 1.5e-5 Torr controlled by IGT.

Got 1.4e-5 Torr with 24.8 volts on piezo.

Ratiomatic: 0.062 mTorr


Physics Operator Comments
Mar 22 2006 08:56:54:710AM1060322003Joseph SnipesThere will be a long delay due to the alternator, at least a couple of hours.
Mar 22 2006 10:22:52:413AM1060322003Joseph SnipesThe alternator needs to turn off to replace a part and since it will take most of the day to bring it back up,
we will scrub the run and make this a maintenance day.

Engineering Operator Comments
ShotTimeTypeStatusComment
107:47:42:757AMTestOkGas Pre-Puff Test
207:58:35:693AMTestOkGas Pre-Puff Test
308:08:21:320AMTestOkGas Pre-Puff Test
403:42:43:227PMTestOkTF Scanner Test
503:55:09:833PMTestOkTF Scanner test
604:05:31:960PMTestOkTF Scanner Test
704:31:59:803PMTestOkTF scanner test