Alcator C-Mod Run 1040218 Information

Miniproposals

Miniproposal: 380

Date Filed: 12/19/2003

Title: Influence of ICRF on sawtooth behavior

First Author: Steve Wukitch

Session Leader: Steve Wukitch (shots 1-25)

Operators
Session leader(s):	Steve Wukitch
Physics operator(s):	Dmitri Mossessian
Engineering operator(s):	Unknown

Engineering Operator Run Comment
Investigate Role of Fast Particle Pressure and Ioncyclotron Current Driv

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Entered: Jul 7 2004 03:49:02:820PM

Author: Steve Wukitch

Session leader: S. Wukitch
Physics operator: D. A. Mossessian

ECDC Overnight in D2, stopping by 07:00
Run begins at 09:00 and ends at 17:00.

Power systems the same as 1040212002

A-coils as on 1040212002.

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

Enable the following gate valves, assuming no vacuum problems:
ECE, VUV, DNB

RF: Transmitters #1,2,3 and 4 in RUN-ON by 08:00
-----------------------------------------------------------------------------------
Run plan:

The goal of this mini-proposal is to investigate role of fast particle
pressure and ion cyclotron current drive in modifying the sawtooth
period.

Start with 1040212002 (Fiducial) - 1 MW steps in RF to 4 MW

Target discharge USN, BT=5.2 T, Ip= 1 MA, nl04~0.8 (1040212033 is
close to target)

Scan RF power for central deposition in L-mode for co-, ctr-, and
heating (J-port compared to D and E)

At high power scan current with central deposition (0.6, 0.8, 1, 1.2 MA)

Scan RF power for central deposition in H-mode for co-, ctr-, and
heating (2.5 MW from D and E)

At high power scan current with central deposition (0.6, 0.8, 1, 1.2 MA)

Place minority resonance near the q=1 surface on both the high field
side and low field side for co-, ctr-, and heating phase with 4.5 MW
of ICRF. (6 shots)

During a discharge, ramp B-field to scan the cyclotron resonance
across the q=1 on both the high field and low field side for co-,
ctr-, and heating phase. (6 shots)
-----------------------------------------------------------------------------------
001 Fiducial (1 MA, BT~5.4 T, nl04~0.85)
D: 0.5-1 MW [0.6,1.5]sec
E: 0.5-1 MW [0.6,1.5]sec
J: 1-2 MW [0.6,1.5]sec
result: plasma - H-mode
D: ran
E: ran 7 faults in high power phase
J: max faults - mistune on J3

J3 stub tuner needed to be run over its entire travel before it would
behave properly
002 Data system cycle - high TF joint resistance
need to run the TF scanner again

VUV turbo has failed and its gate valve is still opening
003 Fiducial (1 MA, BT~5.4 T, nl04~0.85)
D: 0.5-1 MW [0.6,1.5]sec
E: 0.5-1 MW [0.6,1.5]sec
J: 1-2 MW [0.6,1.5]sec
result: plasma - H-mode
D: ran 1 fault
E: ran 1 fault
J: max faults - mistune on J3
004 USN 1 MA, BT~5.2 T, nl04~0.85, heating phase
D: 1-1.35 MW [1.2,1.5]sec
E: 1-1.35 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma
D: ran 1 fault
E: ran 1 fault
J: max faults - mistune on J3
005 USN 1 MA, BT~5.2 T, nl04~0.85, heating phase
D: 1-1.35 MW [1.2,1.5]sec
E: 1-1.35 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma - H-mode late in both pulses
D: ran 3 fault
E: ran 1 fault
J: ran screen overload at 1 sec - takes about 40 msec for
overload relay to close
006 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1-1.25 MW [1.2,1.5]sec
E: 1-1.25 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma - H-mode late in both pulses
D: ran
E: ran
J: ran 3 faults
007 FTP
Slow recool on E left TF and F right TF
008 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1-1.25 MW [1.2,1.5]sec
E: 1-1.25 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma - H-mode
D: ran 3 fault
E: ran 1 fault
J: ran screen overload
sawteeth are longer in 2 MW phase; result in H-mode trigger
009 NTP
010 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.5 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran 2 faults before screen overload
change match point - will require a few shots to optimize
011 NTP
012 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran screen overload
013 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran 1 fault
J: ran 3 faults
some big elms
014 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran 1 fault
J: ran max faults
015 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran 9 faults
PCI data is back
016 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran
017 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran 3 faults
E: ran 1 fault
J: ran 1 fault
~80 msec sawtooth period
018 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran 4 faults
E: ran
J: ran 5 fault
~50 msec sawtooth period
more elm type activity
019 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran 1 fault
E: ran 2 faults
J: ran 4 faults
strong MHD
020 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran 1 fault
J: ran 2 faults
021 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran 2 faults
E: ran
J: ran max faults
022 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran 1 faults
E: ran 3 faults
J: ran overload
023 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1 MW [0.6,1.2]sec
E: 1 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran
E: ran max faults
J: ran 4 faults
024 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1 MW [0.6,1.2]sec
E: 1 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran
E: ran 1 fault
J: ran 1 fault
025 1.0 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.4 MW [0.6,1.2]sec
result: plasma - H-modes
D: ran
E: ran 2 fault
J: ran 2 fault
monster sawtooth

Summary

We were able to evaluate fast particle effects on the sawtooth period
during H-mode. A problem with the TF cooling caused the shot cycle to
be fairly slow. We had a total of 20 plasmas and most went into
H-mode despite efforts to keep them in L-mode. In fact the limiter
discharges (021-024) had brief H-modes with a threshold around 4.5 MW.
We made an abbreviated current scan and found that the sawtooth period
was more strongly affected by the RF at 0.8 MA versus 1.0 MA. Three
monster sawteeth were achieved on 017, 018, and 025 with a record
sawtooth period of 80 msec on 017. To complete this MP, we need to complete
the field scan (move the deposition to the q=1 surface on both the low
and high field side on the magnetic axis). Additional current points
would at 1.2 MA and 0.7 MA would also help clarify the role of fast
particles.

Physics Operator Summaries

Entered: Jul 7 2004 04:36:49:007PM

Author: Dmitri Mossessian

Physop summary for 1040218:

Session leader: S. Wukitch
Physics operator: D. A. Mossessian
________________________________________

Plan:

ECDC Overnight in D2, stopping by 07:00
Run begins at 09:00 and ends at 17:00.

Power systems the same as 1040212030

A-coils as on 1040212030.

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

Enable the following gate valves, assuming no vacuum problems:
ECE, VUV, DNB

RF: Transmitters #1,2,3 and 4 in RUN-ON by 08:00

Run plan:

The goal of this mini-proposal is to investigate role of fast particle
pressure and ion cyclotron current drive in modifying the sawtooth
period.

Start with 1040212030 (Fiducial, 5.4 T, Ip~1 MA, nl04~0.85) - 1 MW steps in RF to 4 MW

___________________________________

Summary:

Some problems but generally a good day. The startup was fine until we started getting duds on shot 7.
We had three of them (shopts 7,9,11) before I decided to follow Steve Wolfe's advice and change
Br and Bz. That fixed the problem. There were no fizzles today.
We ran lower null for the first 2 shots (1 and 3) and then switched to upper null. From shot 20 to
24 we ran inner wall limited plasmas. All shape changes were done in segment 2.
Last shot - reloaded shot 13 (USN).

Total 25 shots
3 duds
0 fizzles
1 data cycle
21 plasmas

Details:

Loaded 1040212030
----------------------------------------------------------------------------
1040218001 mossessian PHYSICS_OPERATOR Feb 18 2004 9:17:01:603AM
. . . . . . . . . . . . . . . . . . . .
Plasma. Good startup.

Next shot: no changes
----------------------------------------------------------------------------
1040218002 mossessian PHYSICS_OPERATOR Feb 18 2004 9:29:26:753AM
. . . . . . . . . . . . . . . . . . . .
No data cycle - test shot to fix TCI problems
----------------------------------------------------------------------------
1040218002 mossessian PHYSICS_OPERATOR Feb 18 2004 9:33:18:710AM
. . . . . . . . . . . . . . . . . . . .
VUV turbopump failed but the gate valve was still openning during pulse, causing a sudden jump in
pressure.

VUV gate valve is disabled.
----------------------------------------------------------------------------
1040218003 mossessian PHYSICS_OPERATOR Feb 18 2004 9:56:47:760AM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - go to USN. Load segment 3 from 1040123033 into segment 2.
Ip to 1 MA
nl target to 8.5e19
B to 5.2 T (TF 149000 -> 142000)
----------------------------------------------------------------------------
1040218004 mossessian PHYSICS_OPERATOR Feb 18 2004 10:11:48:410AM
. . . . . . . . . . . . . . . . . . . .
Plasma. Nice upper null.

Next shot - no changes
----------------------------------------------------------------------------
1040218005 mossessian PHYSICS_OPERATOR Feb 18 2004 10:30:40:003AM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218006 mossessian PHYSICS_OPERATOR Feb 18 2004 10:48:40:846AM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218007 mossessian PHYSICS_OPERATOR Feb 18 2004 11:13:42:193AM
. . . . . . . . . . . . . . . . . . . .
Dud - no breakdown for no particular reason

Next shot - try repeating without changing anything

----------------------------------------------------------------------------
1040218008 mossessian PHYSICS_OPERATOR Feb 18 2004 11:33:32:786AM
. . . . . . . . . . . . . . . . . . . .
Plasma. Good startup

Next shot - start TF, current and nl rampdown at 1.25 instead of 1.5 sec.
----------------------------------------------------------------------------
1040218009 mossessian PHYSICS_OPERATOR Feb 18 2004 11:44:51:153AM
. . . . . . . . . . . . . . . . . . . .
Dud. Pressure may be low.

Next shot - increase prepuff by 3 ms. PG4 15 -> 18 ms
----------------------------------------------------------------------------
1040218010 mossessian PHYSICS_OPERATOR Feb 18 2004 12:24:41:013PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - no changes
----------------------------------------------------------------------------
1040218011 mossessian PHYSICS_OPERATOR Feb 18 2004 12:26:50:906PM
. . . . . . . . . . . . . . . . . . . .
Dud.

Next shot - add 3 msec to PG4, add 10 A to EF4 (increase Bz) drop Br 0.5 mT
----------------------------------------------------------------------------
1040218012 mossessian PHYSICS_OPERATOR Feb 18 2004 12:52:36:610PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218013 mossessian PHYSICS_OPERATOR Feb 18 2004 1:13:08:970PM
. . . . . . . . . . . . . . . . . . . .
Plasma. beta_n goes to 1.5 briefly causing a burst of ELMs in agreement with previous observations.

Next shot - no changes
----------------------------------------------------------------------------
1040218014 mossessian PHYSICS_OPERATOR Feb 18 2004 2:03:40:683PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - no changes
----------------------------------------------------------------------------
1040218015 mossessian PHYSICS_OPERATOR Feb 18 2004 2:03:47:870PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - no changes
----------------------------------------------------------------------------
1040218016 mossessian PHYSICS_OPERATOR Feb 18 2004 2:04:04:056PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - Ip 1 MA -> 800 kA
----------------------------------------------------------------------------
1040218017 mossessian PHYSICS_OPERATOR Feb 18 2004 3:42:35:556PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218018 mossessian PHYSICS_OPERATOR Feb 18 2004 3:42:54:883PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218019 mossessian PHYSICS_OPERATOR Feb 18 2004 3:43:03:180PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218020 mossessian PHYSICS_OPERATOR Feb 18 2004 3:41:55:540PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - inner wall limited. CLEARIN -0.01 -> -0.04
----------------------------------------------------------------------------
1040218021 mossessian PHYSICS_OPERATOR Feb 18 2004 4:09:05:780PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - RCUR down 0.005 to increase outer gap to 1 cm
----------------------------------------------------------------------------
1040218022 mossessian PHYSICS_OPERATOR Feb 18 2004 4:59:31:740PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218023 mossessian PHYSICS_OPERATOR Feb 18 2004 4:59:36:050PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1040218024 mossessian PHYSICS_OPERATOR Feb 18 2004 4:59:47:613PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - load seg2 from shot 13
----------------------------------------------------------------------------
1040218025 mossessian PHYSICS_OPERATOR Feb 18 2004 5:08:06:060PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Session Leader Comments

Feb 18 2004 08:51:26:330AM Steve Wukitch Session leader: S. Wukitch
Physics operator: D. A. Mossessian

ECDC Overnight in D2, stopping by 07:00
Run begins at 09:00 and ends at 17:00.

Power systems the same as 1040212002

A-coils as on 1040212002.

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

Enable the following gate valves, assuming no vacuum problems:
ECE, VUV, DNB

RF: Transmitters #1,2,3 and 4 in RUN-ON by 08:00

Run plan:

The goal of this mini-proposal is to investigate role of fast particle
pressure and ion cyclotron current drive in modifying the sawtooth
period.

Start with 1040212002 (Fiducial) - 1 MW steps in RF to 4 MW

Target discharge USN, BT=5.2 T, Ip= 1 MA, nl04~0.8 (1040212033 is close to target)

Scan RF power for central deposition in L-mode for co-, ctr-, and heating (J-port compared to D and E)

At high power scan current with central deposition (0.6, 0.8, 1, 1.2 MA)

Scan RF power for central deposition in H-mode for co-, ctr-, and heating (2.5 MW from D and E)

At high power scan current with central deposition (0.6, 0.8, 1, 1.2 MA)

Place minority resonance near the q=1 surface on both the high field side and low field
side for co-, ctr-, and heating phase with 4.5 MW of ICRF. (6 shots)

During a discharge, ramp B-field to scan the cyclotron resonance across the q=1 on both
the high field and low field side for co-, ctr-, and heating phase. (6 shots)

Feb 18 2004 09:30:50:740AM 1040218001 Steve Wukitch 001 Fiducial (1 MA, BT~5.4 T, nl04~0.85)
D: 0.5-1 MW [0.6,1.5]sec
E: 0.5-1 MW [0.6,1.5]sec
J: 1-2 MW [0.6,1.5]sec
result: plasma - H-mode
D: ran
E: ran 7 faults in high power phase
J: max faults - mistune on J3

J3 stub tuner needed to be run over its entire travel before it would
behave properly

Feb 18 2004 09:37:52:493AM 1040218002 Steve Wukitch 002 Data system cycle - high TF joint resistance
need to run the TF scanner again

VUV turbo has failed and its gate valve is still opening
disable VUV gate valve

Feb 18 2004 09:50:10:020AM 1040218003 Steve Wukitch 003 Fiducial (1 MA, BT~5.4 T, nl04~0.85)
D: 0.5-1 MW [0.6,1.5]sec
E: 0.5-1 MW [0.6,1.5]sec
J: 1-2 MW [0.6,1.5]sec
result: plasma - H-mode
D: ran 1 fault
E: ran 1 fault
J: max faults - mistune on J3

Feb 18 2004 10:27:10:830AM 1040218004 Steve Wukitch 004 USN 1 MA, BT~5.2 T, nl04~0.85, heating phase
D: 1-1.35 MW [1.2,1.5]sec
E: 1-1.35 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma
D: ran 1 fault
E: ran 1 fault
J: max faults - mistune on J3

Feb 18 2004 10:32:16:270AM 1040218005 Steve Wukitch 005 USN 1 MA, BT~5.2 T, nl04~0.85, heating phase
D: 1-1.35 MW [1.2,1.5]sec
E: 1-1.35 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma - H-mode late in both pulses
D: ran 3 fault
E: ran 1 fault
J: ran screen overload at 1 sec

Feb 18 2004 10:49:36:987AM 1040218006 Steve Wukitch 006 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1-1.25 MW [1.2,1.5]sec
E: 1-1.25 MW [0.6,1.1]sec
J: 1-2-3 MW [0.6,1.1]sec
result: plasma - H-mode late in D and E pulses
D: ran
E: ran
J: ran 3 faults

Feb 18 2004 11:18:21:680AM 1040218007 Steve Wukitch 007 FTP

Feb 18 2004 11:47:41:750AM 1040218009 Steve Wukitch 009 NTP

Feb 18 2004 11:58:26:477AM 1040218010 Steve Wukitch 010 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.5 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran 2 faults before screen overload

Feb 18 2004 01:01:29:633PM 1040218012 Steve Wukitch 012 NTP

Feb 18 2004 01:22:07:087PM 1040218012 Steve Wukitch 012 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran screen overload

Feb 18 2004 01:22:22:150PM 1040218013 Steve Wukitch 013 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran 1 fault
J: ran 3 faults

Feb 18 2004 01:22:33:260PM 1040218014 Steve Wukitch 014 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran 1 fault
J: ran max faults

Feb 18 2004 01:58:44:787PM 1040218015 Steve Wukitch 015 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran 9 faults
PCI data is back

Feb 18 2004 02:04:54:963PM 1040218016 Steve Wukitch 016 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran

Feb 18 2004 02:08:35:983PM 1040218016 Steve Wukitch 016 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran
J: ran

Feb 18 2004 02:49:24:513PM 1040218017 Steve Wukitch 017 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran 3 faults
E: ran 1 fault
J: ran 1 fault
~80 msec sawtooth period

Feb 18 2004 02:49:34:110PM 1040218018 Steve Wukitch 018 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran 4 faults
E: ran
J: ran 5 fault
~50 msec sawtooth period
more elm type activity

Feb 18 2004 03:10:46:843PM 1040218019 Steve Wukitch 019 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran 1 fault
E: ran 2 faults
J: ran 4 faults
strong MHD and elm activity

Feb 18 2004 03:53:36:407PM 1040218020 Steve Wukitch 020 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - H-mode
D: ran
E: ran 1 fault
J: ran 2 faults

Feb 18 2004 04:52:04:827PM 1040218021 Steve Wukitch 021 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran 2 faults
E: ran
J: ran max faults
0

Feb 18 2004 04:52:27:547PM 1040218022 Steve Wukitch 022 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran 1 faults
E: ran 3 faults
J: ran overload

Feb 18 2004 04:52:38:780PM 1040218023 Steve Wukitch
023 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1 MW [0.6,1.2]sec
E: 1 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran
E: ran max faults
J: ran 4 faults

Feb 18 2004 05:02:05:257PM 1040218024 Steve Wukitch 024 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90)
D: 1 MW [0.6,1.2]sec
E: 1 MW [0.6,1.2]sec
J: 2.0 MW [0.6,1.2]sec
result: plasma - brief H-modes
D: ran
E: ran 1 fault
J: ran 1 fault

Feb 18 2004 05:10:46:810PM 1040218025 Steve Wukitch 025 1.0 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90)
D: 1.25 MW [0.6,1.2]sec
E: 1.25 MW [0.6,1.2]sec
J: 2.4 MW [0.6,1.2]sec
result: plasma - H-modes
D: ran
E: ran 2 fault
J: ran 2 fault
monster sawtooth

Physics Operator Comments

Feb 18 2004 08:43:41:050AM Dmitri Mossessian Session leader: S. Wukitch
Physics operator: D. A. Mossessian

ECDC Overnight in D2, stopping by 07:00
Run begins at 09:00 and ends at 17:00.

Power systems the same as 1040212030

A-coils as on 1040212030.

Plan:

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

Enable the following gate valves, assuming no vacuum problems:
ECE, VUV, DNB

RF: Transmitters #1,2,3 and 4 in RUN-ON by 08:00

Run plan:

The goal of this mini-proposal is to investigate role of fast particle
pressure and ion cyclotron current drive in modifying the sawtooth
period.

Start with 1040212030 (Fiducial, 5.4 T, Ip~1 MA, nl04~0.85) - 1 MW steps in RF to 4 MW
_______________________________________-

Loaded 1040212030

Feb 18 2004 09:17:01:603AM 1040218001 Dmitri Mossessian Plasma. Good startup.

Next shot: no changes

Feb 18 2004 09:29:26:753AM 1040218002 Dmitri Mossessian No data cycle - test shot to fix TCI problems

Feb 18 2004 09:33:18:710AM 1040218002 Dmitri Mossessian VUV turbopump failed but the gate valve was still openning during pulse, causing a sudden jump in
pressure.

VUV gate valve is disabled.

Feb 18 2004 09:56:47:760AM 1040218003 Dmitri Mossessian Plasma.

Next shot - go to USN. Load segment 3 from 1040123033 into segment 2.
Ip to 1 MA
nl target to 8.5e19
B to 5.2 T (TF 149000 -> 142000)

Feb 18 2004 10:11:48:410AM 1040218004 Dmitri Mossessian Plasma. Nice upper null.

Next shot - no changes

Feb 18 2004 10:30:40:003AM 1040218005 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 10:48:40:847AM 1040218006 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 11:13:42:193AM 1040218007 Dmitri Mossessian Dud - no breakdown for no particular reason

Next shot - try repeating without changing anything

Feb 18 2004 11:33:32:787AM 1040218008 Dmitri Mossessian Plasma. Good startup

Next shot - start TF, current and nl rampdown at 1.25 instead of 1.5 sec.

Feb 18 2004 11:44:51:153AM 1040218009 Dmitri Mossessian Dud. Pressure may be low.

Next shot - increase prepuff by 3 ms. PG4 15 -> 18 ms

Feb 18 2004 12:24:41:013PM 1040218010 Dmitri Mossessian Plasma

Next shot - no changes

Feb 18 2004 12:26:50:907PM 1040218011 Dmitri Mossessian Dud.

Next shot - add 3 msec to PG4, add 10 A to EF4 (increase Bz) drop Br 0.5 mT

Feb 18 2004 12:52:36:610PM 1040218012 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 01:13:08:970PM 1040218013 Dmitri Mossessian Plasma. beta_n goes to 1.5 briefly causing a burst of ELMs in agreement with previous observations.

Next shot - no changes

Feb 18 2004 02:03:40:683PM 1040218014 Dmitri Mossessian Plasma

Next shot - no changes

Feb 18 2004 02:03:47:870PM 1040218015 Dmitri Mossessian Plasma

Next shot - no changes

Feb 18 2004 02:04:04:057PM 1040218016 Dmitri Mossessian Plasma

Next shot - Ip 1 MA -> 800 kA

Feb 18 2004 03:42:35:557PM 1040218017 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 03:42:54:883PM 1040218018 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 03:43:03:180PM 1040218019 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 03:41:55:540PM 1040218020 Dmitri Mossessian Plasma.

Next shot - inner wall limited. CLEARIN -0.01 -> -0.04

Feb 18 2004 04:09:05:780PM 1040218021 Dmitri Mossessian Plasma.

Next shot - RCUR down 0.005 to increase outer gap to 1 cm

Feb 18 2004 04:59:31:740PM 1040218022 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 04:59:36:050PM 1040218023 Dmitri Mossessian Plasma.

Next shot - no changes

Feb 18 2004 04:59:47:613PM 1040218024 Dmitri Mossessian Plasma.

Next shot - load seg2 from shot 13

Feb 18 2004 05:08:06:060PM 1040218025 Dmitri Mossessian Plasma.

Engineering Operator Comments

Shot Time Type Status Comment

1 09:02:03:827AM Plasma Ok

2 09:21:12:997AM Test Ok Scanner Test

3 09:33:49:803AM Plasma Ok

4 10:04:55:733AM Plasma Ok

5 10:23:42:670AM Plasma Ok

6 10:38:23:400AM Plasma Ok

7 11:00:09:010AM Plasma Ok

8 11:20:07:807AM Plasma Ok

9 11:38:31:603AM Plasma Ok

10 11:53:21:863AM Plasma Ok

11 12:17:40:787PM Plasma Ok

12 12:40:19:197PM Plasma Ok

13 12:57:58:880PM Plasma Ok

14 01:17:43:913PM Plasma Ok

15 01:39:30:320PM Plasma Ok

16 01:57:09:850PM Plasma Ok

17 02:20:06:947PM Plasma Ok

18 02:40:52:757PM Plasma Ok

19 02:58:57:053PM Plasma Ok

20 03:33:37:533PM Plasma Ok

21 03:57:44:550PM Plasma Ok

22 04:18:14:550PM Plasma Ok

23 04:35:56:453PM Plasma Ok

24 04:49:42:810PM Plasma Ok

25 05:05:27:680PM Plasma Ok

Session Leader Comments
Feb 18 2004 08:51:26:330AM		Steve Wukitch	Session leader: S. Wukitch Physics operator: D. A. Mossessian ECDC Overnight in D2, stopping by 07:00 Run begins at 09:00 and ends at 17:00. Power systems the same as 1040212002 A-coils as on 1040212002. Gas setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid enabled (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill C-side with 30 psi D2 Hybrid enabled (PG3) Enable the following gate valves, assuming no vacuum problems: ECE, VUV, DNB RF: Transmitters #1,2,3 and 4 in RUN-ON by 08:00 Run plan: The goal of this mini-proposal is to investigate role of fast particle pressure and ion cyclotron current drive in modifying the sawtooth period. Start with 1040212002 (Fiducial) - 1 MW steps in RF to 4 MW Target discharge USN, BT=5.2 T, Ip= 1 MA, nl04~0.8 (1040212033 is close to target) Scan RF power for central deposition in L-mode for co-, ctr-, and heating (J-port compared to D and E) At high power scan current with central deposition (0.6, 0.8, 1, 1.2 MA) Scan RF power for central deposition in H-mode for co-, ctr-, and heating (2.5 MW from D and E) At high power scan current with central deposition (0.6, 0.8, 1, 1.2 MA) Place minority resonance near the q=1 surface on both the high field side and low field side for co-, ctr-, and heating phase with 4.5 MW of ICRF. (6 shots) During a discharge, ramp B-field to scan the cyclotron resonance across the q=1 on both the high field and low field side for co-, ctr-, and heating phase. (6 shots)
Feb 18 2004 09:30:50:740AM	1040218001	Steve Wukitch	001 Fiducial (1 MA, BT~5.4 T, nl04~0.85) D: 0.5-1 MW [0.6,1.5]sec E: 0.5-1 MW [0.6,1.5]sec J: 1-2 MW [0.6,1.5]sec result: plasma - H-mode D: ran E: ran 7 faults in high power phase J: max faults - mistune on J3 J3 stub tuner needed to be run over its entire travel before it would behave properly
Feb 18 2004 09:37:52:493AM	1040218002	Steve Wukitch	002 Data system cycle - high TF joint resistance need to run the TF scanner again VUV turbo has failed and its gate valve is still opening disable VUV gate valve
Feb 18 2004 09:50:10:020AM	1040218003	Steve Wukitch	003 Fiducial (1 MA, BT~5.4 T, nl04~0.85) D: 0.5-1 MW [0.6,1.5]sec E: 0.5-1 MW [0.6,1.5]sec J: 1-2 MW [0.6,1.5]sec result: plasma - H-mode D: ran 1 fault E: ran 1 fault J: max faults - mistune on J3
Feb 18 2004 10:27:10:830AM	1040218004	Steve Wukitch	004 USN 1 MA, BT~5.2 T, nl04~0.85, heating phase D: 1-1.35 MW [1.2,1.5]sec E: 1-1.35 MW [0.6,1.1]sec J: 1-2-3 MW [0.6,1.1]sec result: plasma D: ran 1 fault E: ran 1 fault J: max faults - mistune on J3
Feb 18 2004 10:32:16:270AM	1040218005	Steve Wukitch	005 USN 1 MA, BT~5.2 T, nl04~0.85, heating phase D: 1-1.35 MW [1.2,1.5]sec E: 1-1.35 MW [0.6,1.1]sec J: 1-2-3 MW [0.6,1.1]sec result: plasma - H-mode late in both pulses D: ran 3 fault E: ran 1 fault J: ran screen overload at 1 sec
Feb 18 2004 10:49:36:987AM	1040218006	Steve Wukitch	006 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1-1.25 MW [1.2,1.5]sec E: 1-1.25 MW [0.6,1.1]sec J: 1-2-3 MW [0.6,1.1]sec result: plasma - H-mode late in D and E pulses D: ran E: ran J: ran 3 faults
Feb 18 2004 11:18:21:680AM	1040218007	Steve Wukitch	007 FTP
Feb 18 2004 11:47:41:750AM	1040218009	Steve Wukitch	009 NTP
Feb 18 2004 11:58:26:477AM	1040218010	Steve Wukitch	010 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.5 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran J: ran 2 faults before screen overload
Feb 18 2004 01:01:29:633PM	1040218012	Steve Wukitch	012 NTP
Feb 18 2004 01:22:07:087PM	1040218012	Steve Wukitch	012 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran J: ran screen overload
Feb 18 2004 01:22:22:150PM	1040218013	Steve Wukitch	013 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran 1 fault J: ran 3 faults
Feb 18 2004 01:22:33:260PM	1040218014	Steve Wukitch	014 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran 1 fault J: ran max faults
Feb 18 2004 01:58:44:787PM	1040218015	Steve Wukitch	015 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran J: ran 9 faults PCI data is back
Feb 18 2004 02:04:54:963PM	1040218016	Steve Wukitch	016 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran J: ran
Feb 18 2004 02:08:35:983PM	1040218016	Steve Wukitch	016 USN 1 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran J: ran
Feb 18 2004 02:49:24:513PM	1040218017	Steve Wukitch	017 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 130deg (180) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran 3 faults E: ran 1 fault J: ran 1 fault ~80 msec sawtooth period
Feb 18 2004 02:49:34:110PM	1040218018	Steve Wukitch	018 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to deg (+90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran 4 faults E: ran J: ran 5 fault ~50 msec sawtooth period more elm type activity
Feb 18 2004 03:10:46:843PM	1040218019	Steve Wukitch	019 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran 1 fault E: ran 2 faults J: ran 4 faults strong MHD and elm activity
Feb 18 2004 03:53:36:407PM	1040218020	Steve Wukitch	020 USN 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - H-mode D: ran E: ran 1 fault J: ran 2 faults
Feb 18 2004 04:52:04:827PM	1040218021	Steve Wukitch	021 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - brief H-modes D: ran 2 faults E: ran J: ran max faults 0
Feb 18 2004 04:52:27:547PM	1040218022	Steve Wukitch	022 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - brief H-modes D: ran 1 faults E: ran 3 faults J: ran overload
Feb 18 2004 04:52:38:780PM	1040218023	Steve Wukitch	023 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1 MW [0.6,1.2]sec E: 1 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - brief H-modes D: ran E: ran max faults J: ran 4 faults
Feb 18 2004 05:02:05:257PM	1040218024	Steve Wukitch	024 Limited 0.8 MA, BT~5.2 T, nl04~0.85, phase set to 30deg (-90) D: 1 MW [0.6,1.2]sec E: 1 MW [0.6,1.2]sec J: 2.0 MW [0.6,1.2]sec result: plasma - brief H-modes D: ran E: ran 1 fault J: ran 1 fault
Feb 18 2004 05:10:46:810PM	1040218025	Steve Wukitch	025 1.0 MA, BT~5.2 T, nl04~0.85, phase set to 220deg (+90) D: 1.25 MW [0.6,1.2]sec E: 1.25 MW [0.6,1.2]sec J: 2.4 MW [0.6,1.2]sec result: plasma - H-modes D: ran E: ran 2 fault J: ran 2 fault monster sawtooth

Physics Operator Comments
Feb 18 2004 08:43:41:050AM		Dmitri Mossessian	Session leader: S. Wukitch Physics operator: D. A. Mossessian ECDC Overnight in D2, stopping by 07:00 Run begins at 09:00 and ends at 17:00. Power systems the same as 1040212030 A-coils as on 1040212030. Plan: Gas setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid enabled (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill C-side with 30 psi D2 Hybrid enabled (PG3) Enable the following gate valves, assuming no vacuum problems: ECE, VUV, DNB RF: Transmitters #1,2,3 and 4 in RUN-ON by 08:00 Run plan: The goal of this mini-proposal is to investigate role of fast particle pressure and ion cyclotron current drive in modifying the sawtooth period. Start with 1040212030 (Fiducial, 5.4 T, Ip~1 MA, nl04~0.85) - 1 MW steps in RF to 4 MW _______________________________________- Loaded 1040212030
Feb 18 2004 09:17:01:603AM	1040218001	Dmitri Mossessian	Plasma. Good startup. Next shot: no changes
Feb 18 2004 09:29:26:753AM	1040218002	Dmitri Mossessian	No data cycle - test shot to fix TCI problems
Feb 18 2004 09:33:18:710AM	1040218002	Dmitri Mossessian	VUV turbopump failed but the gate valve was still openning during pulse, causing a sudden jump in pressure. VUV gate valve is disabled.
Feb 18 2004 09:56:47:760AM	1040218003	Dmitri Mossessian	Plasma. Next shot - go to USN. Load segment 3 from 1040123033 into segment 2. Ip to 1 MA nl target to 8.5e19 B to 5.2 T (TF 149000 -> 142000)
Feb 18 2004 10:11:48:410AM	1040218004	Dmitri Mossessian	Plasma. Nice upper null. Next shot - no changes
Feb 18 2004 10:30:40:003AM	1040218005	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 10:48:40:847AM	1040218006	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 11:13:42:193AM	1040218007	Dmitri Mossessian	Dud - no breakdown for no particular reason Next shot - try repeating without changing anything
Feb 18 2004 11:33:32:787AM	1040218008	Dmitri Mossessian	Plasma. Good startup Next shot - start TF, current and nl rampdown at 1.25 instead of 1.5 sec.
Feb 18 2004 11:44:51:153AM	1040218009	Dmitri Mossessian	Dud. Pressure may be low. Next shot - increase prepuff by 3 ms. PG4 15 -> 18 ms
Feb 18 2004 12:24:41:013PM	1040218010	Dmitri Mossessian	Plasma Next shot - no changes
Feb 18 2004 12:26:50:907PM	1040218011	Dmitri Mossessian	Dud. Next shot - add 3 msec to PG4, add 10 A to EF4 (increase Bz) drop Br 0.5 mT
Feb 18 2004 12:52:36:610PM	1040218012	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 01:13:08:970PM	1040218013	Dmitri Mossessian	Plasma. beta_n goes to 1.5 briefly causing a burst of ELMs in agreement with previous observations. Next shot - no changes
Feb 18 2004 02:03:40:683PM	1040218014	Dmitri Mossessian	Plasma Next shot - no changes
Feb 18 2004 02:03:47:870PM	1040218015	Dmitri Mossessian	Plasma Next shot - no changes
Feb 18 2004 02:04:04:057PM	1040218016	Dmitri Mossessian	Plasma Next shot - Ip 1 MA -> 800 kA
Feb 18 2004 03:42:35:557PM	1040218017	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 03:42:54:883PM	1040218018	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 03:43:03:180PM	1040218019	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 03:41:55:540PM	1040218020	Dmitri Mossessian	Plasma. Next shot - inner wall limited. CLEARIN -0.01 -> -0.04
Feb 18 2004 04:09:05:780PM	1040218021	Dmitri Mossessian	Plasma. Next shot - RCUR down 0.005 to increase outer gap to 1 cm
Feb 18 2004 04:59:31:740PM	1040218022	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 04:59:36:050PM	1040218023	Dmitri Mossessian	Plasma. Next shot - no changes
Feb 18 2004 04:59:47:613PM	1040218024	Dmitri Mossessian	Plasma. Next shot - load seg2 from shot 13
Feb 18 2004 05:08:06:060PM	1040218025	Dmitri Mossessian	Plasma.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:02:03:827AM	Plasma	Ok
2	09:21:12:997AM	Test	Ok	Scanner Test
3	09:33:49:803AM	Plasma	Ok
4	10:04:55:733AM	Plasma	Ok
5	10:23:42:670AM	Plasma	Ok
6	10:38:23:400AM	Plasma	Ok
7	11:00:09:010AM	Plasma	Ok
8	11:20:07:807AM	Plasma	Ok
9	11:38:31:603AM	Plasma	Ok
10	11:53:21:863AM	Plasma	Ok
11	12:17:40:787PM	Plasma	Ok
12	12:40:19:197PM	Plasma	Ok
13	12:57:58:880PM	Plasma	Ok
14	01:17:43:913PM	Plasma	Ok
15	01:39:30:320PM	Plasma	Ok
16	01:57:09:850PM	Plasma	Ok
17	02:20:06:947PM	Plasma	Ok
18	02:40:52:757PM	Plasma	Ok
19	02:58:57:053PM	Plasma	Ok
20	03:33:37:533PM	Plasma	Ok
21	03:57:44:550PM	Plasma	Ok
22	04:18:14:550PM	Plasma	Ok
23	04:35:56:453PM	Plasma	Ok
24	04:49:42:810PM	Plasma	Ok
25	05:05:27:680PM	Plasma	Ok