Alcator C-Mod Run 1020823 Information

Miniproposals

Miniproposal: 301

Date Filed: 6/21/2002

Title: ITB Foot Location Movement via I

First Author: John Rice

Session Leader: John Rice (shots 1-33)

Operators
Session leader(s):	John Rice
Physics operator(s):	Dmitri Mossessian
Engineering operator(s):	Bill Byford,Gary Dekow

Engineering Operator Run Comment
MP#301* ITB foot - Ip scan; SL Rice; PO MOSSESSIAN; EO Dekow/Byford

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Entered: Jul 7 2004 03:49:29:990PM

Author: To Be Determined

Session Leader Run Summary for 1020823 MP301* ITB Foot, Ip Scan

Only 3 discharges, 3, 29 and 31, exhibited any ITB formation at all, and
for all of these, late in the discharge, near the end of the ICRF pulse.
All of these ITBs were during the 'baseline' demonstration shots, before
attempting the current scan, which was not undertaken. All of the shots
had multiple RF trips from E port, which rendered the whole run unsucessful.

Physics Operator Summaries

Entered: Jul 7 2004 04:37:15:910PM

Author: To Be Determined

Physop summary for 1020823.

MP#301* ITB foot - Ip scan

SL Rice
PO Mosesian

Power Systems as on 1020820002

ECDC overnight at 2e-4 T D2; stop at 7:00 am

Gas setup:

B-Top 6 psi D2 Hybrid Enabled (PG4)
B-side lower 1 psi Ar Hybrid Enabled (PG1)
B-side upper 10 psi D2 Hybrid DISABLED (PG2, for ECDC)
C-Side 30 psi D2 Hybrid Enabled (PG3)
J-Bottom as is, Hybrid DISABLED

Summary:

The plan was to go to 4.5 T and use D and E antennae for off axis heating to get EDA with ITB.
The startup was not reliable throughout the run. First two shots were duds. Increasing the
gas puff to unusually high value (35 msec) seemed to help on the third shot. For some reason,
with the prepuff pulse as long as 30-35 msec the G-side pressure is being measured at the level
of 0.04 - 0.05, which is much lower than what it was before (0.07 - 0.08) at the puff lengths of
~ 20 msec. On the other hand the pressure required to start the plasma is now around 0.045 mT.
Eventually, the startup was more or less stabilized by various tweeks of Br and Bz, including
changes of RCUR demand at 1 ms to affect the ramp rate of Bz.

33 shots
19 plasmas
3 duds
8 fizzles
3 tests

Details:

----------------------------------------------------------------------------
1020823001 mossessian PHYSICS_OPERATOR Aug 23 2002 9:15:07:456AM
. . . . . . . . . . . . . . . . . . . .
Dud. Pressure looks too low - 0.04 instead of 0.046 last shot yesterday.

Next shot - increase prepuff 0.027 -> 0.032
----------------------------------------------------------------------------
1020823002 mossessian PHYSICS_OPERATOR Aug 23 2002 9:30:30:310AM
. . . . . . . . . . . . . . . . . . . .
Dud.

Next shot - Br offset down 0.002 -> 0.0015, gas up 0.032 -> 0.035
----------------------------------------------------------------------------
1020823003 mossessian PHYSICS_OPERATOR Aug 23 2002 9:49:42:700AM
. . . . . . . . . . . . . . . . . . . .
Plasma. Unstable startup. Br may be too low.

Next shot - Br offset up 0.0015 -> 0.002
----------------------------------------------------------------------------
1020823004 mossessian PHYSICS_OPERATOR Aug 23 2002 10:06:46:436AM
. . . . . . . . . . . . . . . . . . . .
Plasma. This was supposed to be L-mode ne rampup for TS calibrations.

Next shot - repeat TS calibration shot
----------------------------------------------------------------------------
1020823005 mossessian PHYSICS_OPERATOR Aug 23 2002 10:21:05:723AM
. . . . . . . . . . . . . . . . . . . .
Fizzle.

Next shot - prepuff down 34 -> 32
----------------------------------------------------------------------------
1020823006 mossessian PHYSICS_OPERATOR Aug 23 2002 10:48:59:190AM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - repeat shot 3
----------------------------------------------------------------------------
1020823007 mossessian PHYSICS_OPERATOR Aug 23 2002 10:59:17:216AM
. . . . . . . . . . . . . . . . . . . .
Fizzle (after disruption).

Next shot - repeat shot 6 with 1 MA Ip. In startup - Bz up a bit: IC_EF4 -1315 -> -1310
----------------------------------------------------------------------------
1020823008 mossessian PHYSICS_OPERATOR Aug 23 2002 11:17:59:880AM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - go back to shot 3. Drop gas alittle 33 - > 30 ms
----------------------------------------------------------------------------
1020823010 mossessian PHYSICS_OPERATOR Aug 23 2002 11:38:01:003AM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - no change
----------------------------------------------------------------------------
1020823011 mossessian PHYSICS_OPERATOR Aug 23 2002 12:05:07:093PM
. . . . . . . . . . . . . . . . . . . .
Dud. OH2_Lproblems

Next shot - OH test
----------------------------------------------------------------------------
1020823012 mossessian PHYSICS_OPERATOR Aug 23 2002 12:44:53:793PM
. . . . . . . . . . . . . . . . . . . .
Test
----------------------------------------------------------------------------
1020823013 mossessian PHYSICS_OPERATOR Aug 23 2002 12:44:59:260PM
. . . . . . . . . . . . . . . . . . . .
Test
----------------------------------------------------------------------------
1020823015 mossessian PHYSICS_OPERATOR Aug 23 2002 1:05:11:433PM
. . . . . . . . . . . . . . . . . . . .
Fizzle

Next shot - Bz up: IC_EF4 -1310 -> -1300, prefill down 0.033 -> 0.03
----------------------------------------------------------------------------
1020823014 mossessian PHYSICS_OPERATOR Aug 23 2002 1:06:03:483PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changesa
----------------------------------------------------------------------------
1020823016 mossessian PHYSICS_OPERATOR Aug 23 2002 1:22:09:716PM
. . . . . . . . . . . . . . . . . . . .
Plasma. Almost dies at 0.0139.

Next shot - no changes
----------------------------------------------------------------------------
1020823017 mossessian PHYSICS_OPERATOR Aug 23 2002 1:25:33:533PM
. . . . . . . . . . . . . . . . . . . .
Plasma. Startup is a s bad as on shot 16

Next shot - drop gas 30 -> 27 ms
----------------------------------------------------------------------------
1020823018 mossessian PHYSICS_OPERATOR Aug 23 2002 1:55:36:903PM
. . . . . . . . . . . . . . . . . . . .
Fizzle.

Next shot -Bz -1300 -> -1320
----------------------------------------------------------------------------
1020823019 mossessian PHYSICS_OPERATOR Aug 23 2002 1:56:24:403PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - fill up 27 -> 30 ms
----------------------------------------------------------------------------
1020823020 mossessian PHYSICS_OPERATOR Aug 23 2002 2:13:53:113PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - Rcur demand at 1 ms down to 0.675 to increase Bz ram up rate
----------------------------------------------------------------------------
1020823021 mossessian PHYSICS_OPERATOR Aug 23 2002 2:19:25:180PM
. . . . . . . . . . . . . . . . . . . .
Plasma. Bz is a little better.

Next shot - Rcur demand to 0.67 at 1 ms.
----------------------------------------------------------------------------
1020823023 mossessian PHYSICS_OPERATOR Aug 23 2002 2:51:48:926PM
. . . . . . . . . . . . . . . . . . . .
Plasma. Still bounces around 16 ms.

Next shot - Fill up 30 -> 32 ms
----------------------------------------------------------------------------
1020823022 mossessian PHYSICS_OPERATOR Aug 23 2002 2:52:03:753PM
. . . . . . . . . . . . . . . . . . . .
Plasma. Bz is a little better.

Next shot - Rcur demand to 0.665 at 1 ms.
----------------------------------------------------------------------------
1020823025 mossessian PHYSICS_OPERATOR Aug 23 2002 3:21:21:186PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - go to nl 1e20. Fill up 33 -> 36 ms
----------------------------------------------------------------------------
1020823026 mossessian PHYSICS_OPERATOR Aug 23 2002 3:31:31:676PM
. . . . . . . . . . . . . . . . . . . .
Plasma.

Next shot - no changes
----------------------------------------------------------------------------
1020823024 mossessian PHYSICS_OPERATOR Aug 23 2002 3:48:22:700PM
. . . . . . . . . . . . . . . . . . . .
No power shot.

Next shot - no changes
----------------------------------------------------------------------------
1020823027 mossessian PHYSICS_OPERATOR Aug 23 2002 3:50:08:670PM
. . . . . . . . . . . . . . . . . . . .
Fizzle

Next shot - gas back to 32 ms
----------------------------------------------------------------------------
1020823028 mossessian PHYSICS_OPERATOR Aug 23 2002 4:04:04:193PM
. . . . . . . . . . . . . . . . . . . .
Fizzle

Next shot - no changes
----------------------------------------------------------------------------
1020823029 mossessian PHYSICS_OPERATOR Aug 23 2002 4:17:11:823PM
. . . . . . . . . . . . . . . . . . . .
PLasma

Next shot - outer gap to 1.2 mm (RCUR down 2 mm)
----------------------------------------------------------------------------
1020823030 mossessian PHYSICS_OPERATOR Aug 23 2002 4:38:53:970PM
. . . . . . . . . . . . . . . . . . . .
Fizzle

Next shot - drop Br 2 -> 1 mT
----------------------------------------------------------------------------
1020823031 mossessian PHYSICS_OPERATOR Aug 23 2002 5:00:07:900PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - no changes
----------------------------------------------------------------------------
1020823032 mossessian PHYSICS_OPERATOR Aug 23 2002 5:00:12:760PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Next shot - no changes
----------------------------------------------------------------------------
1020823033 mossessian PHYSICS_OPERATOR Aug 23 2002 5:00:21:073PM
. . . . . . . . . . . . . . . . . . . .
Plasma

Last shot

Session Leader Comments

Aug 23 2002 09:33:44:777AM 1020823001 John Rice dud

Aug 23 2002 09:33:54:170AM 1020823002 John Rice dud

Aug 23 2002 09:44:05:753AM 1020823003 John Rice good ITB 1.1 s!

Aug 23 2002 10:02:47:280AM 1020823004 John Rice density ramp calibration shot for Thomson Scattering

Aug 23 2002 10:18:45:030AM 1020823005 John Rice fiz

Aug 23 2002 10:51:33:543AM 1020823006 John Rice density ramp for Thomson Scattering

Aug 23 2002 10:52:07:657AM 1020823007 John Rice fiz

Aug 23 2002 11:06:36:307AM 1020823008 John Rice high density ramp for Thomson cal

Aug 23 2002 11:23:50:793AM 1020823009 John Rice fiz

Aug 23 2002 11:38:33:693AM 1020823010 John Rice multiple RF trips, no ITB

Aug 23 2002 11:47:21:210AM 1020823011 John Rice dud

Aug 23 2002 12:20:08:417PM 1020823012 John Rice OH test

Aug 23 2002 12:23:16:240PM 1020823013 John Rice OH test

Aug 23 2002 12:39:23:537PM 1020823014 John Rice RF trips so no good ITB development

Aug 23 2002 12:53:16:420PM 1020823015 John Rice fiz

Aug 23 2002 01:13:49:670PM 1020823016 John Rice RF trips so no ITB

Aug 23 2002 01:48:46:510PM 1020823017 John Rice RF trips so no ITB

Aug 23 2002 01:48:55:323PM 1020823018 John Rice fiz

Aug 23 2002 02:02:56:987PM 1020823019 John Rice late H-mode and RF trips so no ITB development

Aug 23 2002 02:10:45:207PM 1020823020 John Rice low RF power so late H-mode and RF trips so no ITB development

Aug 23 2002 02:44:08:360PM 1020823021 John Rice low RF power so late H-mode and RF trips so no ITB development

Aug 23 2002 02:44:42:673PM 1020823022 John Rice higher RF power so earlier entrance into H-mode, but multiple trips so no ITB

Aug 23 2002 03:00:07:490PM 1020823023 John Rice D port trip

Aug 23 2002 03:00:16:303PM 1020823024 John Rice test

Aug 23 2002 03:16:30:357PM 1020823025 John Rice multiple E port trips

Aug 23 2002 03:32:12:957PM 1020823026 John Rice raised target density but still multiple E port trips

Aug 23 2002 03:40:47:963PM 1020823027 John Rice fiz

Aug 26 2002 10:51:40:527AM 1020823028 John Rice fiz

Aug 26 2002 10:52:35:823AM 1020823029 John Rice late ITB, 1.2s, multiple RF trips

Aug 26 2002 10:53:19:700AM 1020823030 John Rice fiz

Aug 26 2002 10:54:11:623AM 1020823031 John Rice late, mild ITB, multiple RF trips

Aug 26 2002 10:55:10:250AM 1020823032 John Rice multiple RF trips

Aug 26 2002 10:55:52:407AM 1020823033 John Rice no ITB

Physics Operator Comments

Aug 23 2002 08:52:30:087AM Dmitri Mossessian Plan:

MP#301* ITB foot - Ip scan

SL Rice
PO Mosesian

Power Systems as on 1020820002

Plasmas to begin at 9:00 AM

ECDC overnight at 2e-4 T D2; stop at 7:00 am

Gas setup:

B-Top 6 psi D2 Hybrid Enabled (PG4)
B-side lower 1 psi Ar Hybrid Enabled (PG1)
B-side upper 10 psi D2 Hybrid DISABLED (PG2, for ECDC)
C-Side 30 psi D2 Hybrid Enabled (PG3)
J-Bottom as is, Hybrid DISABLED

Gate valves
ECE,VUV,DNB

Start with segment 2 of 1010801005, 3.9 T shot. Use J port RF to get ITB and
proceed with current scan.

__________________________________

Programmed Bt to 4.5 T (instructed by SL noy to use 1010801005)
Otherwise - repeat last shot from yesterday.1020822021

Coldstart OK.

Aug 23 2002 09:15:07:457AM 1020823001 Dmitri Mossessian Dud. Pressure looks too low - 0.04 instead of 0.046 last shot yesterday.

Next shot - increase prepuff 0.027 -> 0.032

Aug 23 2002 09:30:30:310AM 1020823002 Dmitri Mossessian Dud.

Next shot - Br offset down 0.002 -> 0.0015, gas up 0.032 -> 0.035

Aug 23 2002 09:49:42:700AM 1020823003 Dmitri Mossessian Plasma. Unstable startup. Br may be too low.

Next shot - Br offset up 0.0015 -> 0.002

Aug 23 2002 10:06:46:437AM 1020823004 Dmitri Mossessian Plasma. This was supposed to be L-mode ne rampup for TS calibrations.

Next shot - repeat TS calibration shot

Aug 23 2002 10:21:05:723AM 1020823005 Dmitri Mossessian Fizzle.

Next shot - prepuff down 34 -> 32

Aug 23 2002 10:48:59:190AM 1020823006 Dmitri Mossessian Plasma.

Next shot - repeat shot 3

Aug 23 2002 10:59:17:217AM 1020823007 Dmitri Mossessian Fizzle (after disruption).

Next shot - repeat shot 6 with 1 MA Ip. In startup - Bz up a bit: IC_EF4 -1315 -> -1310

Aug 23 2002 11:17:59:880AM 1020823008 Dmitri Mossessian Plasma.

Next shot - go back to shot 3. Drop gas alittle 33 - > 30 ms

Aug 23 2002 11:38:01:003AM 1020823010 Dmitri Mossessian Plasma

Next shot - no change

Aug 23 2002 12:05:07:093PM 1020823011 Dmitri Mossessian Dud. OH2_Lproblems

Next shot - OH test

Aug 23 2002 12:44:53:793PM 1020823012 Dmitri Mossessian Test

Aug 23 2002 12:44:59:260PM 1020823013 Dmitri Mossessian Test

Aug 23 2002 01:06:03:483PM 1020823014 Dmitri Mossessian Plasma.

Next shot - no changesa

Aug 23 2002 01:05:11:433PM 1020823015 Dmitri Mossessian Fizzle

Next shot - Bz up: IC_EF4 -1310 -> -1300, prefill down 0.033 -> 0.03

Aug 23 2002 01:22:09:717PM 1020823016 Dmitri Mossessian Plasma. Almost dies at 0.0139.

Next shot - no changes

Aug 23 2002 01:25:33:533PM 1020823017 Dmitri Mossessian Plasma. Startup is a s bad as on shot 16

Next shot - drop gas 30 -> 27 ms

Aug 23 2002 01:55:36:903PM 1020823018 Dmitri Mossessian Fizzle.

Next shot -Bz -1300 -> -1320

Aug 23 2002 01:56:24:403PM 1020823019 Dmitri Mossessian Plasma

Next shot - fill up 27 -> 30 ms

Aug 23 2002 02:13:53:113PM 1020823020 Dmitri Mossessian Plasma

Next shot - Rcur demand at 1 ms down to 0.675 to increase Bz ram up rate

Aug 23 2002 02:19:25:180PM 1020823021 Dmitri Mossessian Plasma. Bz is a little better.

Next shot - Rcur demand to 0.67 at 1 ms.

Aug 23 2002 02:52:03:753PM 1020823022 Dmitri Mossessian Plasma. Bz is a little better.

Next shot - Rcur demand to 0.665 at 1 ms.

Aug 23 2002 02:51:48:927PM 1020823023 Dmitri Mossessian Plasma. Still bounces around 16 ms.

Next shot - Fill up 30 -> 32 ms

Aug 23 2002 03:48:22:700PM 1020823024 Dmitri Mossessian No power shot.

Next shot - no changes

Aug 23 2002 03:21:21:187PM 1020823025 Dmitri Mossessian Plasma.

Next shot - go to nl 1e20. Fill up 33 -> 36 ms

Aug 23 2002 03:31:31:677PM 1020823026 Dmitri Mossessian Plasma.

Next shot - no changes

Aug 23 2002 03:50:08:670PM 1020823027 Dmitri Mossessian Fizzle

Next shot - gas back to 32 ms

Aug 23 2002 04:04:04:193PM 1020823028 Dmitri Mossessian Fizzle

Next shot - no changes

Aug 23 2002 04:17:11:823PM 1020823029 Dmitri Mossessian PLasma

Next shot - outer gap to 1.2 mm (RCUR down 2 mm)

Aug 23 2002 04:38:53:970PM 1020823030 Dmitri Mossessian Fizzle

Next shot - drop Br 2 -> 1 mT

Aug 23 2002 05:00:07:900PM 1020823031 Dmitri Mossessian Plasma

Next shot - no changes

Aug 23 2002 05:00:12:760PM 1020823032 Dmitri Mossessian Plasma

Next shot - no changes

Aug 23 2002 05:00:21:073PM 1020823033 Dmitri Mossessian Plasma

Last shot

Engineering Operator Comments

Shot Time Type Status Comment

1 09:03:59:257AM Plasma Ok

2 09:19:44:787AM Plasma Ok

3 09:34:39:420AM Plasma Ok

4 09:51:07:830AM Plasma Ok

5 10:11:35:423AM Plasma Ok

6 10:30:57:323AM Plasma Ok

7 10:50:23:040AM Plasma Ok

8 11:03:18:527AM Plasma Ok

9 11:19:26:107AM Plasma Ok

10 11:32:25:780AM Plasma Ok

11 11:45:24:097AM Plasma Bad OH2L Crowbared

12 12:11:43:070PM Test Bad no excitation

13 12:22:41:723PM Test Ok OH Commutation Test

14 12:35:37:507PM Plasma Ok

15 12:48:41:853PM Plasma Ok

16 01:06:45:423PM Plasma Ok

17 01:21:57:217PM Plasma Ok

18 01:35:43:490PM Plasma Ok

19 01:48:34:150PM Plasma Ok

20 02:01:47:267PM Plasma Ok

21 02:14:35:863PM Plasma Ok

22 02:27:39:433PM Plasma Ok

23 02:43:37:203PM Plasma Ok

24 02:56:42:460PM Plasma Ok EF1L Did not charge

25 03:09:07:603PM Plasma Ok

26 03:25:25:500PM Plasma Ok

27 03:39:01:213PM Plasma Ok

28 03:52:06:157PM Plasma Ok

29 04:05:24:520PM Plasma Ok

30 04:18:33:090PM Plasma Ok

31 04:31:16:657PM Plasma Ok

32 04:44:12:660PM Plasma Ok

33 04:57:33:167PM Plasma Ok

Session Leader Comments
Aug 23 2002 09:33:44:777AM	1020823001	John Rice	dud
Aug 23 2002 09:33:54:170AM	1020823002	John Rice	dud
Aug 23 2002 09:44:05:753AM	1020823003	John Rice	good ITB 1.1 s!
Aug 23 2002 10:02:47:280AM	1020823004	John Rice	density ramp calibration shot for Thomson Scattering
Aug 23 2002 10:18:45:030AM	1020823005	John Rice	fiz
Aug 23 2002 10:51:33:543AM	1020823006	John Rice	density ramp for Thomson Scattering
Aug 23 2002 10:52:07:657AM	1020823007	John Rice	fiz
Aug 23 2002 11:06:36:307AM	1020823008	John Rice	high density ramp for Thomson cal
Aug 23 2002 11:23:50:793AM	1020823009	John Rice	fiz
Aug 23 2002 11:38:33:693AM	1020823010	John Rice	multiple RF trips, no ITB
Aug 23 2002 11:47:21:210AM	1020823011	John Rice	dud
Aug 23 2002 12:20:08:417PM	1020823012	John Rice	OH test
Aug 23 2002 12:23:16:240PM	1020823013	John Rice	OH test
Aug 23 2002 12:39:23:537PM	1020823014	John Rice	RF trips so no good ITB development
Aug 23 2002 12:53:16:420PM	1020823015	John Rice	fiz
Aug 23 2002 01:13:49:670PM	1020823016	John Rice	RF trips so no ITB
Aug 23 2002 01:48:46:510PM	1020823017	John Rice	RF trips so no ITB
Aug 23 2002 01:48:55:323PM	1020823018	John Rice	fiz
Aug 23 2002 02:02:56:987PM	1020823019	John Rice	late H-mode and RF trips so no ITB development
Aug 23 2002 02:10:45:207PM	1020823020	John Rice	low RF power so late H-mode and RF trips so no ITB development
Aug 23 2002 02:44:08:360PM	1020823021	John Rice	low RF power so late H-mode and RF trips so no ITB development
Aug 23 2002 02:44:42:673PM	1020823022	John Rice	higher RF power so earlier entrance into H-mode, but multiple trips so no ITB
Aug 23 2002 03:00:07:490PM	1020823023	John Rice	D port trip
Aug 23 2002 03:00:16:303PM	1020823024	John Rice	test
Aug 23 2002 03:16:30:357PM	1020823025	John Rice	multiple E port trips
Aug 23 2002 03:32:12:957PM	1020823026	John Rice	raised target density but still multiple E port trips
Aug 23 2002 03:40:47:963PM	1020823027	John Rice	fiz
Aug 26 2002 10:51:40:527AM	1020823028	John Rice	fiz
Aug 26 2002 10:52:35:823AM	1020823029	John Rice	late ITB, 1.2s, multiple RF trips
Aug 26 2002 10:53:19:700AM	1020823030	John Rice	fiz
Aug 26 2002 10:54:11:623AM	1020823031	John Rice	late, mild ITB, multiple RF trips
Aug 26 2002 10:55:10:250AM	1020823032	John Rice	multiple RF trips
Aug 26 2002 10:55:52:407AM	1020823033	John Rice	no ITB

Physics Operator Comments
Aug 23 2002 08:52:30:087AM		Dmitri Mossessian	Plan: MP#301* ITB foot - Ip scan SL Rice PO Mosesian Power Systems as on 1020820002 Plasmas to begin at 9:00 AM ECDC overnight at 2e-4 T D2; stop at 7:00 am Gas setup: B-Top 6 psi D2 Hybrid Enabled (PG4) B-side lower 1 psi Ar Hybrid Enabled (PG1) B-side upper 10 psi D2 Hybrid DISABLED (PG2, for ECDC) C-Side 30 psi D2 Hybrid Enabled (PG3) J-Bottom as is, Hybrid DISABLED Gate valves ECE,VUV,DNB Start with segment 2 of 1010801005, 3.9 T shot. Use J port RF to get ITB and proceed with current scan. __________________________________ Programmed Bt to 4.5 T (instructed by SL noy to use 1010801005) Otherwise - repeat last shot from yesterday.1020822021 Coldstart OK.
Aug 23 2002 09:15:07:457AM	1020823001	Dmitri Mossessian	Dud. Pressure looks too low - 0.04 instead of 0.046 last shot yesterday. Next shot - increase prepuff 0.027 -> 0.032
Aug 23 2002 09:30:30:310AM	1020823002	Dmitri Mossessian	Dud. Next shot - Br offset down 0.002 -> 0.0015, gas up 0.032 -> 0.035
Aug 23 2002 09:49:42:700AM	1020823003	Dmitri Mossessian	Plasma. Unstable startup. Br may be too low. Next shot - Br offset up 0.0015 -> 0.002
Aug 23 2002 10:06:46:437AM	1020823004	Dmitri Mossessian	Plasma. This was supposed to be L-mode ne rampup for TS calibrations. Next shot - repeat TS calibration shot
Aug 23 2002 10:21:05:723AM	1020823005	Dmitri Mossessian	Fizzle. Next shot - prepuff down 34 -> 32
Aug 23 2002 10:48:59:190AM	1020823006	Dmitri Mossessian	Plasma. Next shot - repeat shot 3
Aug 23 2002 10:59:17:217AM	1020823007	Dmitri Mossessian	Fizzle (after disruption). Next shot - repeat shot 6 with 1 MA Ip. In startup - Bz up a bit: IC_EF4 -1315 -> -1310
Aug 23 2002 11:17:59:880AM	1020823008	Dmitri Mossessian	Plasma. Next shot - go back to shot 3. Drop gas alittle 33 - > 30 ms
Aug 23 2002 11:38:01:003AM	1020823010	Dmitri Mossessian	Plasma Next shot - no change
Aug 23 2002 12:05:07:093PM	1020823011	Dmitri Mossessian	Dud. OH2_Lproblems Next shot - OH test
Aug 23 2002 12:44:53:793PM	1020823012	Dmitri Mossessian	Test
Aug 23 2002 12:44:59:260PM	1020823013	Dmitri Mossessian	Test
Aug 23 2002 01:06:03:483PM	1020823014	Dmitri Mossessian	Plasma. Next shot - no changesa
Aug 23 2002 01:05:11:433PM	1020823015	Dmitri Mossessian	Fizzle Next shot - Bz up: IC_EF4 -1310 -> -1300, prefill down 0.033 -> 0.03
Aug 23 2002 01:22:09:717PM	1020823016	Dmitri Mossessian	Plasma. Almost dies at 0.0139. Next shot - no changes
Aug 23 2002 01:25:33:533PM	1020823017	Dmitri Mossessian	Plasma. Startup is a s bad as on shot 16 Next shot - drop gas 30 -> 27 ms
Aug 23 2002 01:55:36:903PM	1020823018	Dmitri Mossessian	Fizzle. Next shot -Bz -1300 -> -1320
Aug 23 2002 01:56:24:403PM	1020823019	Dmitri Mossessian	Plasma Next shot - fill up 27 -> 30 ms
Aug 23 2002 02:13:53:113PM	1020823020	Dmitri Mossessian	Plasma Next shot - Rcur demand at 1 ms down to 0.675 to increase Bz ram up rate
Aug 23 2002 02:19:25:180PM	1020823021	Dmitri Mossessian	Plasma. Bz is a little better. Next shot - Rcur demand to 0.67 at 1 ms.
Aug 23 2002 02:52:03:753PM	1020823022	Dmitri Mossessian	Plasma. Bz is a little better. Next shot - Rcur demand to 0.665 at 1 ms.
Aug 23 2002 02:51:48:927PM	1020823023	Dmitri Mossessian	Plasma. Still bounces around 16 ms. Next shot - Fill up 30 -> 32 ms
Aug 23 2002 03:48:22:700PM	1020823024	Dmitri Mossessian	No power shot. Next shot - no changes
Aug 23 2002 03:21:21:187PM	1020823025	Dmitri Mossessian	Plasma. Next shot - go to nl 1e20. Fill up 33 -> 36 ms
Aug 23 2002 03:31:31:677PM	1020823026	Dmitri Mossessian	Plasma. Next shot - no changes
Aug 23 2002 03:50:08:670PM	1020823027	Dmitri Mossessian	Fizzle Next shot - gas back to 32 ms
Aug 23 2002 04:04:04:193PM	1020823028	Dmitri Mossessian	Fizzle Next shot - no changes
Aug 23 2002 04:17:11:823PM	1020823029	Dmitri Mossessian	PLasma Next shot - outer gap to 1.2 mm (RCUR down 2 mm)
Aug 23 2002 04:38:53:970PM	1020823030	Dmitri Mossessian	Fizzle Next shot - drop Br 2 -> 1 mT
Aug 23 2002 05:00:07:900PM	1020823031	Dmitri Mossessian	Plasma Next shot - no changes
Aug 23 2002 05:00:12:760PM	1020823032	Dmitri Mossessian	Plasma Next shot - no changes
Aug 23 2002 05:00:21:073PM	1020823033	Dmitri Mossessian	Plasma Last shot

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:03:59:257AM	Plasma	Ok
2	09:19:44:787AM	Plasma	Ok
3	09:34:39:420AM	Plasma	Ok
4	09:51:07:830AM	Plasma	Ok
5	10:11:35:423AM	Plasma	Ok
6	10:30:57:323AM	Plasma	Ok
7	10:50:23:040AM	Plasma	Ok
8	11:03:18:527AM	Plasma	Ok
9	11:19:26:107AM	Plasma	Ok
10	11:32:25:780AM	Plasma	Ok
11	11:45:24:097AM	Plasma	Bad	OH2L Crowbared
12	12:11:43:070PM	Test	Bad	no excitation
13	12:22:41:723PM	Test	Ok	OH Commutation Test
14	12:35:37:507PM	Plasma	Ok
15	12:48:41:853PM	Plasma	Ok
16	01:06:45:423PM	Plasma	Ok
17	01:21:57:217PM	Plasma	Ok
18	01:35:43:490PM	Plasma	Ok
19	01:48:34:150PM	Plasma	Ok
20	02:01:47:267PM	Plasma	Ok
21	02:14:35:863PM	Plasma	Ok
22	02:27:39:433PM	Plasma	Ok
23	02:43:37:203PM	Plasma	Ok
24	02:56:42:460PM	Plasma	Ok	EF1L Did not charge
25	03:09:07:603PM	Plasma	Ok
26	03:25:25:500PM	Plasma	Ok
27	03:39:01:213PM	Plasma	Ok
28	03:52:06:157PM	Plasma	Ok
29	04:05:24:520PM	Plasma	Ok
30	04:18:33:090PM	Plasma	Ok
31	04:31:16:657PM	Plasma	Ok
32	04:44:12:660PM	Plasma	Ok
33	04:57:33:167PM	Plasma	Ok