Alcator C-Mod Run 1050314 Information

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Miniproposals

Operators
Session leader(s):
Physics operator(s):
Engineering operator(s):

Engineering Operator Run Comment
RGA Data Transfer and Video camera tests

Session Leader Plans

Physics Operators Plans
Entered: Mar 14 2005 03:46:09:273PM
Author: Jim Irby
Several shots will be taken to check that the RGA data is being taken properly before and after the shot
Entered: Apr 13 2005 05:20:16:453PM
Author: Ron Parker
Setup ----------------------------------------------------------------------------
1050331xxx PARKER PO_PLAN Mar 30 2005 5:21:21:033PM
. . . . . . . . . . . . . . . . . . . .
Engineering Setup for Thursday, 31 March 2005

MP 418 Lower Hybrid Coupling Studies

Session Leader: Bernabei, Wilson
Physics operator: Parker

Overnight discharge clean in D2, bake at 60 C.

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

Power sytems as on 1050330

A-coils in standard configuration (lock mode suppression)
+Dtop -Dbot -Jtop +Jbot (same as 1050316)

Gas Setup:
fill B-top with 6 psi D2 hybrid enabled (PG4)
fill B-side lower with 2 psi Ar Hybrid enabled (PG1)
leave B-side upper with He3 Hybrid disabled
fill B-main (C-side) with 30 psi D2 Hybrid enabled (PG3)
leave J-bot Hybrid disabled (PG2)

Enable the following:
ECE gate valve, Z-bolo shutters
VUV gate valve

NO ICRF!!

Lower Hybrid 3 carts ready to pulse, -90 degree phasing.
Pulse length up to 20 msec power per klystron up to 20 kW

The run will focus on basic LH coupling studies. Plasma conditions will be routine,
5.6 T, 700 kA, single null. Lowish density. We may want to raise field to enhance
penetration.

The plan is to study coupling and any apparent plasma phenomena associated with LH
at 4 coupler positions; at each coupler position 4 phase decrements will be set, namely
-60, -90, -120 and -150 degrees.

Entered: Apr 13 2005 05:21:16:703PM
Author: Ron Parker
Setup ----------------------------------------------------------------------------
1050331xxx PARKER PO_PLAN Mar 30 2005 5:21:21:033PM
. . . . . . . . . . . . . . . . . . . .
Engineering Setup for Thursday, 31 March 2005

MP 418 Lower Hybrid Coupling Studies

Session Leader: Bernabei, Wilson
Physics operator: Parker

Overnight discharge clean in D2, bake at 60 C.

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

Power sytems as on 1050330

A-coils in standard configuration (lock mode suppression)
+Dtop -Dbot -Jtop +Jbot (same as 1050316)

Gas Setup:
fill B-top with 6 psi D2 hybrid enabled (PG4)
fill B-side lower with 2 psi Ar Hybrid enabled (PG1)
leave B-side upper with He3 Hybrid disabled
fill B-main (C-side) with 30 psi D2 Hybrid enabled (PG3)
leave J-bot Hybrid disabled (PG2)

Enable the following:
ECE gate valve, Z-bolo shutters
VUV gate valve

NO ICRF!!

Lower Hybrid 3 carts ready to pulse, -90 degree phasing.
Pulse length up to 20 msec power per klystron up to 20 kW

The run will focus on basic LH coupling studies. Plasma conditions will be routine,
5.6 T, 700 kA, single null. Lowish density. We may want to raise field to enhance
penetration.

The plan is to study coupling and any apparent plasma phenomena associated with LH
at 4 coupler positions; at each coupler position 4 phase decrements will be set, namely
-60, -90, -120 and -150 degrees.

Session Leader Summaries

Physics Operator Summaries

Session Leader Comments

Physics Operator Comments
Mar 14 2005 03:49:41:117PMJim IrbySeveral shot were taken to verifiy proper operation of the RGA before and after routines.
They appear to be working okay.


Engineering Operator Comments
ShotTimeTypeStatusComment
102:28:45:493PMTestOkRGA Data Test
202:55:06:790PMTestOkRGA Data Test
303:10:21:633PMTestOkRGA data test
403:22:38:727PMTestOk
503:30:39:010PMTestOkRGA Data Test
603:39:09:367PMTestOkRGA Data Test
803:59:33:510PMTestOk