Alcator C-Mod Run 1030617 Information

Miniproposals

Miniproposal: 318

Date Filed: 8/22/2002

Title: High Performance Operation at 5 Tesla

First Author: Earl Marmar

Session Leader: Earl Marmar (shots 1-32)

Operators
Session leader(s):	Earl Marmar
Physics operator(s):	Bill Rowan
Engineering operator(s):	Unknown

Engineering Operator Run Comment
Boronization recovery and MP 318 High performance at 5 T; SL:Marmar PO:R

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Entered: Jul 7 2004 03:49:33:320PM

Author: Earl Marmar

Session Leader run summary 1030617

MP 318 High performance at 5 Tesla
SL Marmar
PO Rowan

Plan:

Attempt ~4 MW RF, at relatively low density, starting with 600 kA shot like 1030530027. Do a current scan, possibly changing density to keep n/n_G ~ constant. This run was carried out the day after a boronization.

Results:

We got data with 4MW ICRF at 0.6, 0.8 and 1.0 MA. The best performance, in terms of H-factor, was achieved at target nl_04 ~ 6e19, 0.8 MA, 4 MW RF, with >150 kJ on shots 20, 21 and 23. Shot 20 disrupted at the time of peak stored energy. In the other cases, Wtot and neutron rate started drooping as radiated power increased. H-factors were close to 2, at least around the time of dW/dt = 0, assuming 95% absorption of rf power into thermal plasma. RF trip dW/dt analysis could be done on a number of these shots. Going to 1 MA did not increase performance, with the best shot being 28, giving W_max = 153 kJ, at target nl_04=5e19, again transient with increasing radiated power. Higher target density was worse (shot 27, for example) with W_max = 133 kJ, at nl_04 = 8e19. The a-coils were energized (+Dtop -Dbot -Jtop +Jbot) for all but the last shot (#32). If anything, shot 32 was slightly better that 31, although details of rf trips early in the heating pulses were a little different. These two shots (31 and 32) had target nl_04 = 9e19.

Physics Operator Summaries

Session Leader Comments

Jun 17 2003 08:13:01:190AM Earl Marmar boronization recovery and high performance at 5 tesla

start from 600 kA, low density shot (like 1030530027)

Raise the rf power to >4MW, and then do a current and density scan.

Jun 17 2003 08:26:07:250AM 1030617001 Earl Marmar plasma

H/(H+D) = .04

A-coils are on in anti-lock-mode configuration
+Dtop -Dbot -Jtop +Jbot

RF is tuning up: 2 MW

Jun 17 2003 08:36:00:423AM 1030617002 Earl Marmar 2.6 MW, 3 H-modes

H/(H+D) = .04

Jun 17 2003 08:38:07:993AM 1030617003 Earl Marmar plasma

H/(H+D) = .035

2.7 MW, 2 longish H-modes

j-port trip at .792 s a good candidate for dW/dt analysis

Jun 17 2003 09:04:02:443AM 1030617005 Earl Marmar 2.6 MW intermittent; 3 or 4 h-modes

Jun 17 2003 09:33:12:933AM 1030617007 Earl Marmar 3.2 MW, neutron rate still rising slowly at first rf trip

H/H+D) ~ .045

Jun 17 2003 09:55:35:603AM 1030617008 Earl Marmar very similar power to the target shot 1030530027

~20% less stored energy

density in h-mode is ~20% higher than the target shot, probably due to recent boronization

Jun 17 2003 09:56:06:390AM 1030617009 Earl Marmar 4 MW RF

stop at this power level, try to get first h-mode without trips

Jun 17 2003 10:10:12:513AM 1030617010 Earl Marmar 4 MW for 100 ms before first trip

Wtot = 110 kJ, beta_p = 1.1

next shot: lower target density to nl_04 ~ 5e19

Jun 17 2003 10:21:15:410AM 1030617011 Earl Marmar lower nl_04 target (4.6e19)

density in h-mode hardly affected

more radiated power; w peaks at 94 kJ and then droops

Jun 17 2003 10:54:32:073AM 1030617012 Earl Marmar increase TF 7%, put target nl_04 back to shot 10 programming

big increase in radiated power around 0.73 s

Jun 17 2003 10:58:38:580AM 1030617014 Earl Marmar j4 didn't fire

3 MW (with J3 alone)

still got W = 90 kJ

Jun 17 2003 11:11:18:037AM 1030617014 Earl Marmar there is a delay before the next shot; rf working on the j4 problem

Jun 17 2003 11:27:58:407AM 1030617015 Earl Marmar 4 MW, 112 kJ

traded 200 kW E power for increased D power

next shot: go to 800 kA

Jun 17 2003 11:57:14:997AM 1030617016 Earl Marmar some candidate trips on this shot for dW/dt analysis

Jun 17 2003 11:55:59:590AM 1030617017 Earl Marmar lower B_t to 150 kA straight across

4 MW RF, 800 kA, 120 kJ, radiation through the roof, disrupt at .74 s

Jun 17 2003 12:07:51:590PM 1030617018 Earl Marmar nl04 target to 7e19

many rf trips, many h-modes

W briefly to 120 kJ at 4 MW

Jun 17 2003 12:48:59:547PM 1030617021 Earl Marmar good confinement on this shot, until it disrupts

H89 approaching 2 with assumption of 90% rf absorption

also had a trip at .705; should look at it for dW/dt

next shot: turn off j-port

Jun 17 2003 01:29:35:013PM 1030617022 Earl Marmar j-port off

decent h-mode until it disrupts

H89 ~ 1.5 (but not steady-state)

Jun 17 2003 01:36:39:230PM 1030617025 Earl Marmar move the rf start to 0.5 s

one j trip early, but otherwise 4 MW, stored energy not as high as previous shots (137 kJ max)

Jun 17 2003 01:59:32:593PM 1030617026 Earl Marmar move rf start to 800 msec

similar to 25, Wmax = 128 kJ

Jun 17 2003 03:01:49:343PM 1030617027 Earl Marmar go to 1 MA, same target density

negligible increase in W compared to 800 kA

Jun 17 2003 03:26:34:290PM 1030617031 Earl Marmar move rf to start at 0.6 seconds.

similar results to 30

Jun 17 2003 03:25:39:520PM 1030617032 Earl Marmar turn off the a-coils

no obvious differences

4 MW, 130 kJ in initial transient, 100 kJ or less for most of the rf pulse

Physics Operator Comments

Jun 17 2003 07:31:00:933AM Bill Rowan Engineering setup for Tuesday, 17 June 2003

Purpose: Boronization recovery
MP 318 High performance at 5 T
Session leader: Marmar
Physics operator: Rowan

ECDC after boronization in D2 at 2e-4 Torr, stopping by 06:00.
Bake at 60 C after boronization, if possible.

Run begins at 08:00 and ends at 15:00.
NOTE CHANGE IN STARTING AND ENDING TIMES

Power systems the same as on 1030530027.

A-coils should be hooked up as on 1030507027 (+Dtop -Dbot -Jtop +Jbot), and
the power supply should be enabled.

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)

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

-------------------------------------------------------------------------------
RF Setup: All 4 transmitters in Run On by 07:00.

Boronization completed.

Only approximately 1.5 hours of ECDC before the cut off time of 6am. Short duration of ECDC after the last boronization was credited with the problems getting plasma on the first day after boronization.

There will be a need for some ECDC before the run begins if RF does significant conditioning.

Jun 17 2003 07:33:28:050AM Bill Rowan Loaded shot 1030530027 as requested by the SL.
Loaded segment 1 from shot 1030612006 which is a more recent startup. Did not use a shot from 1030613
due to comments in physop report for that run.

Jun 17 2003 08:05:28:973AM 1030617001 Bill Rowan 001. Plasma. Not bad for the first shot after boronization.
RF at 0.7 s 1 to 2 MW. H-modes at 0.83 s and 0.93 s

Next shot. No PCS changes.

Jun 17 2003 08:19:57:930AM 1030617002 Bill Rowan 002. Plasma.
H-modes between 0.6 and 0.9 s

Jun 17 2003 08:24:44:933AM 1030617002 Bill Rowan

Next shot. No PCS changes.

Jun 17 2003 08:32:04:350AM 1030617003 Bill Rowan 003. Plasma.
Couple of H-modes. First w/duration of 0.3s. Second duration is 0.2s

Jun 17 2003 08:38:13:697AM 1030617003 Bill Rowan

Next shot. No PCS changes.

Jun 17 2003 08:49:13:190AM 1030617004 Bill Rowan 004. Plasma. H-mpde starting at 0.6s.
Noise on ratiomatic. Pressure is creeping up.

Jun 17 2003 08:51:42:353AM 1030617004 Bill Rowan

Next shot. No PCS changes.

Jun 17 2003 09:04:29:337AM 1030617005 Bill Rowan 005. Plasma.

Nest shot. No PCS changes.

Jun 17 2003 09:13:05:723AM 1030617006 Bill Rowan 006. Plasma. Disruption at 1.4 s.

Jun 17 2003 09:17:11:707AM 1030617006 Bill Rowan
Next shot. No PCS changes.

Jun 17 2003 09:27:21:617AM 1030617007 Bill Rowan 007. Plasma.

Next shot. No PCS changes.

Jun 17 2003 09:40:39:723AM 1030617008 Bill Rowan 008. Plasma

Next shot. No PCS changes.

Jun 17 2003 09:54:41:930AM 1030617009 Bill Rowan 009. Plasma.

Next shot. No pPCS changes.

Jun 17 2003 10:06:56:787AM 1030617010 Bill Rowan 010. Plasma.

Next shot. Lower nl_04 from 5e19 to 4e19

Jun 17 2003 10:22:09:103AM 1030617011 Bill Rowan 011. Plasma. Target nl_04 = 4.6e+19

Next shot. Increase nl_04 from 4e19 to 5e19
BT increase. Current increased from 148kA to 158kA

Jun 17 2003 10:34:39:527AM 1030617012 Bill Rowan 012. Plasma. BT = 5.7T
Target nl_04=5.3e+19

Jun 17 2003 10:37:16:920AM 1030617012 Bill Rowan
Next shot. No PCS changes

Jun 17 2003 10:50:19:177AM 1030617013 Bill Rowan 013. Plasma.

Next shot. No PCS changes

Jun 17 2003 10:58:04:733AM 1030617014 Bill Rowan 014. Plasma

Jun 17 2003 11:15:41:450AM 1030617014 Bill Rowan
Next shot. No PCS changes.
EO change. Bill Byford

Jun 17 2003 11:22:28:660AM 1030617015 Bill Rowan 015. Plasma.

Next shot. Changed Ip from 600 kA to 800 kA.

Jun 17 2003 11:42:00:753AM 1030617016 Bill Rowan 16. Plasma. IP=790kA

Next shot. BT reduction. Current reduced from 158kA to 150kA

Jun 17 2003 11:50:28:487AM 1030617017 Bill Rowan 017. Plasma. Disruption at 0.74s
BT = 5.4T

Jun 17 2003 11:53:05:693AM 1030617017 Bill Rowan
Next shot. Increase nl_04 from 5e19 to 7e19

Jun 17 2003 12:08:31:000PM 1030617018 Bill Rowan 018. Plasma. Disruption at 1.5s.
Target nl_04=6.5e+19

Next shot. No changes

Jun 17 2003 12:18:30:797PM 1030617019 Bill Rowan 019. Plasma. Full length.

Next shot. No changes.

Jun 17 2003 12:32:48:643PM 1030617020 Bill Rowan 020. Plasma.

Next shot. No PCS changes.

Jun 17 2003 12:45:12:057PM 1030617021 Bill Rowan 021. Plasma. Disruption at 0.81s

Next shot. No PCS changes.

Jun 17 2003 12:59:50:187PM 1030617022 Bill Rowan 022. Plasma. Disruption at 0.75 s

Next shot. ZXL moved up by 5mm

Jun 17 2003 01:14:02:320PM 1030617023 Bill Rowan 023. Plasma.

Next shot. Increased nl_04 from 7.0e+19 to 7.5e19

Jun 17 2003 01:26:47:810PM 1030617024 Bill Rowan 024. Plasma.

Next shot. Slight change in Ip at the changeover from segment 1 to segment 2

Jun 17 2003 01:50:27:983PM 1030617026 Bill Rowan 026. Plasma Disruption at 1.2s

Next shot. Increase IP to 1 MA

Jun 17 2003 02:06:55:697PM 1030617027 Bill Rowan 027. Plasma.

Next shot. Decrease the nl_04 from 7.5e+19 to 5.0e+19
EO: Bill Parkin

Jun 17 2003 02:21:13:453PM 1030617028 Bill Rowan 028. Plasma. Disruption at 2.3s

Next shot. Increase nl_04 from 5.0e+19 to 9.5e+19
zcur moved up by 5mm

Jun 17 2003 02:40:31:390PM 1030617029 Bill Rowan 029. Died at approximately 0.14s.

Next shot. No changes.

Jun 17 2003 02:50:43:170PM 1030617030 Bill Rowan 030. Plasma. Full length.

Next shot. Repeat.

Jun 17 2003 03:00:16:437PM 1030617031 Bill Rowan 031. Plasma. Disruption at 1.4s

Next shot. C-coils turned off by engineers
A-coil demand set to zero

Jun 17 2003 03:11:23:250PM 1030617032 Bill Rowan 032. Plasma. Full length.

Last shot. We are stopping at 3pm today.

Engineering Operator Comments

Shot Time Type Status Comment

1 07:57:42:557AM Plasma Ok

2 08:11:53:717AM Plasma Ok

3 08:26:05:360AM Plasma Ok

4 08:39:04:170AM Plasma Ok

5 08:52:27:170AM Plasma Ok

6 09:05:36:637AM Plasma Ok

7 09:18:28:650AM Plasma Ok

8 09:31:50:087AM Plasma Ok

9 09:44:47:130AM Plasma Ok

10 09:58:58:773AM Plasma Ok

11 10:11:56:583AM Plasma Ok

12 10:25:11:457AM Plasma Ok

13 10:38:08:093AM Plasma Ok

14 10:51:53:570AM Plasma Ok

15 11:16:36:403AM Plasma Ok

16 11:29:33:957AM Plasma Ok

17 11:43:18:663AM Plasma Ok

18 11:56:04:557AM Plasma Ok

19 12:09:17:420PM Plasma Ok

20 12:23:00:270PM Plasma Ok

21 12:36:02:120PM Plasma Ok

22 12:48:56:343PM Plasma Ok

23 01:02:00:237PM Plasma Ok

24 01:15:01:413PM Plasma Ok

25 01:28:11:450PM Plasma Ok

26 01:44:25:770PM Plasma Ok

27 01:57:47:400PM Plasma Ok

28 02:11:24:033PM Plasma Ok

29 02:24:33:257PM Plasma Ok

30 02:39:43:857PM Plasma Ok

31 02:52:49:660PM Plasma Ok

32 03:05:51:257PM Plasma Ok

Session Leader Comments
Jun 17 2003 08:13:01:190AM		Earl Marmar	boronization recovery and high performance at 5 tesla start from 600 kA, low density shot (like 1030530027) Raise the rf power to >4MW, and then do a current and density scan.
Jun 17 2003 08:26:07:250AM	1030617001	Earl Marmar	plasma H/(H+D) = .04 A-coils are on in anti-lock-mode configuration +Dtop -Dbot -Jtop +Jbot RF is tuning up: 2 MW
Jun 17 2003 08:36:00:423AM	1030617002	Earl Marmar	2.6 MW, 3 H-modes H/(H+D) = .04
Jun 17 2003 08:38:07:993AM	1030617003	Earl Marmar	plasma H/(H+D) = .035 2.7 MW, 2 longish H-modes j-port trip at .792 s a good candidate for dW/dt analysis
Jun 17 2003 09:04:02:443AM	1030617005	Earl Marmar	2.6 MW intermittent; 3 or 4 h-modes
Jun 17 2003 09:33:12:933AM	1030617007	Earl Marmar	3.2 MW, neutron rate still rising slowly at first rf trip H/H+D) ~ .045
Jun 17 2003 09:55:35:603AM	1030617008	Earl Marmar	very similar power to the target shot 1030530027 ~20% less stored energy density in h-mode is ~20% higher than the target shot, probably due to recent boronization
Jun 17 2003 09:56:06:390AM	1030617009	Earl Marmar	4 MW RF stop at this power level, try to get first h-mode without trips
Jun 17 2003 10:10:12:513AM	1030617010	Earl Marmar	4 MW for 100 ms before first trip Wtot = 110 kJ, beta_p = 1.1 next shot: lower target density to nl_04 ~ 5e19
Jun 17 2003 10:21:15:410AM	1030617011	Earl Marmar	lower nl_04 target (4.6e19) density in h-mode hardly affected more radiated power; w peaks at 94 kJ and then droops
Jun 17 2003 10:54:32:073AM	1030617012	Earl Marmar	increase TF 7%, put target nl_04 back to shot 10 programming big increase in radiated power around 0.73 s
Jun 17 2003 10:58:38:580AM	1030617014	Earl Marmar	j4 didn't fire 3 MW (with J3 alone) still got W = 90 kJ
Jun 17 2003 11:11:18:037AM	1030617014	Earl Marmar	there is a delay before the next shot; rf working on the j4 problem
Jun 17 2003 11:27:58:407AM	1030617015	Earl Marmar	4 MW, 112 kJ traded 200 kW E power for increased D power next shot: go to 800 kA
Jun 17 2003 11:57:14:997AM	1030617016	Earl Marmar	some candidate trips on this shot for dW/dt analysis
Jun 17 2003 11:55:59:590AM	1030617017	Earl Marmar	lower B_t to 150 kA straight across 4 MW RF, 800 kA, 120 kJ, radiation through the roof, disrupt at .74 s
Jun 17 2003 12:07:51:590PM	1030617018	Earl Marmar	nl04 target to 7e19 many rf trips, many h-modes W briefly to 120 kJ at 4 MW
Jun 17 2003 12:48:59:547PM	1030617021	Earl Marmar	good confinement on this shot, until it disrupts H89 approaching 2 with assumption of 90% rf absorption also had a trip at .705; should look at it for dW/dt next shot: turn off j-port
Jun 17 2003 01:29:35:013PM	1030617022	Earl Marmar	j-port off decent h-mode until it disrupts H89 ~ 1.5 (but not steady-state)
Jun 17 2003 01:36:39:230PM	1030617025	Earl Marmar	move the rf start to 0.5 s one j trip early, but otherwise 4 MW, stored energy not as high as previous shots (137 kJ max)
Jun 17 2003 01:59:32:593PM	1030617026	Earl Marmar	move rf start to 800 msec similar to 25, Wmax = 128 kJ
Jun 17 2003 03:01:49:343PM	1030617027	Earl Marmar	go to 1 MA, same target density negligible increase in W compared to 800 kA
Jun 17 2003 03:26:34:290PM	1030617031	Earl Marmar	move rf to start at 0.6 seconds. similar results to 30
Jun 17 2003 03:25:39:520PM	1030617032	Earl Marmar	turn off the a-coils no obvious differences 4 MW, 130 kJ in initial transient, 100 kJ or less for most of the rf pulse

Physics Operator Comments
Jun 17 2003 07:31:00:933AM		Bill Rowan	Engineering setup for Tuesday, 17 June 2003 Purpose: Boronization recovery MP 318 High performance at 5 T Session leader: Marmar Physics operator: Rowan ECDC after boronization in D2 at 2e-4 Torr, stopping by 06:00. Bake at 60 C after boronization, if possible. Run begins at 08:00 and ends at 15:00. NOTE CHANGE IN STARTING AND ENDING TIMES Power systems the same as on 1030530027. A-coils should be hooked up as on 1030507027 (+Dtop -Dbot -Jtop +Jbot), and the power supply should be enabled. 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) Enable the following gate valves, assuming no vacuum problems: ECE, DNB ------------------------------------------------------------------------------- RF Setup: All 4 transmitters in Run On by 07:00. Boronization completed. Only approximately 1.5 hours of ECDC before the cut off time of 6am. Short duration of ECDC after the last boronization was credited with the problems getting plasma on the first day after boronization. There will be a need for some ECDC before the run begins if RF does significant conditioning.
Jun 17 2003 07:33:28:050AM		Bill Rowan	Loaded shot 1030530027 as requested by the SL. Loaded segment 1 from shot 1030612006 which is a more recent startup. Did not use a shot from 1030613 due to comments in physop report for that run.
Jun 17 2003 08:05:28:973AM	1030617001	Bill Rowan	001. Plasma. Not bad for the first shot after boronization. RF at 0.7 s 1 to 2 MW. H-modes at 0.83 s and 0.93 s Next shot. No PCS changes.
Jun 17 2003 08:19:57:930AM	1030617002	Bill Rowan	002. Plasma. H-modes between 0.6 and 0.9 s
Jun 17 2003 08:24:44:933AM	1030617002	Bill Rowan	Next shot. No PCS changes.
Jun 17 2003 08:32:04:350AM	1030617003	Bill Rowan	003. Plasma. Couple of H-modes. First w/duration of 0.3s. Second duration is 0.2s
Jun 17 2003 08:38:13:697AM	1030617003	Bill Rowan	Next shot. No PCS changes.
Jun 17 2003 08:49:13:190AM	1030617004	Bill Rowan	004. Plasma. H-mpde starting at 0.6s. Noise on ratiomatic. Pressure is creeping up.
Jun 17 2003 08:51:42:353AM	1030617004	Bill Rowan	Next shot. No PCS changes.
Jun 17 2003 09:04:29:337AM	1030617005	Bill Rowan	005. Plasma. Nest shot. No PCS changes.
Jun 17 2003 09:13:05:723AM	1030617006	Bill Rowan	006. Plasma. Disruption at 1.4 s.
Jun 17 2003 09:17:11:707AM	1030617006	Bill Rowan	Next shot. No PCS changes.
Jun 17 2003 09:27:21:617AM	1030617007	Bill Rowan	007. Plasma. Next shot. No PCS changes.
Jun 17 2003 09:40:39:723AM	1030617008	Bill Rowan	008. Plasma Next shot. No PCS changes.
Jun 17 2003 09:54:41:930AM	1030617009	Bill Rowan	009. Plasma. Next shot. No pPCS changes.
Jun 17 2003 10:06:56:787AM	1030617010	Bill Rowan	010. Plasma. Next shot. Lower nl_04 from 5e19 to 4e19
Jun 17 2003 10:22:09:103AM	1030617011	Bill Rowan	011. Plasma. Target nl_04 = 4.6e+19 Next shot. Increase nl_04 from 4e19 to 5e19 BT increase. Current increased from 148kA to 158kA
Jun 17 2003 10:34:39:527AM	1030617012	Bill Rowan	012. Plasma. BT = 5.7T Target nl_04=5.3e+19
Jun 17 2003 10:37:16:920AM	1030617012	Bill Rowan	Next shot. No PCS changes
Jun 17 2003 10:50:19:177AM	1030617013	Bill Rowan	013. Plasma. Next shot. No PCS changes
Jun 17 2003 10:58:04:733AM	1030617014	Bill Rowan	014. Plasma
Jun 17 2003 11:15:41:450AM	1030617014	Bill Rowan	Next shot. No PCS changes. EO change. Bill Byford
Jun 17 2003 11:22:28:660AM	1030617015	Bill Rowan	015. Plasma. Next shot. Changed Ip from 600 kA to 800 kA.
Jun 17 2003 11:42:00:753AM	1030617016	Bill Rowan	16. Plasma. IP=790kA Next shot. BT reduction. Current reduced from 158kA to 150kA
Jun 17 2003 11:50:28:487AM	1030617017	Bill Rowan	017. Plasma. Disruption at 0.74s BT = 5.4T
Jun 17 2003 11:53:05:693AM	1030617017	Bill Rowan	Next shot. Increase nl_04 from 5e19 to 7e19
Jun 17 2003 12:08:31:000PM	1030617018	Bill Rowan	018. Plasma. Disruption at 1.5s. Target nl_04=6.5e+19 Next shot. No changes
Jun 17 2003 12:18:30:797PM	1030617019	Bill Rowan	019. Plasma. Full length. Next shot. No changes.
Jun 17 2003 12:32:48:643PM	1030617020	Bill Rowan	020. Plasma. Next shot. No PCS changes.
Jun 17 2003 12:45:12:057PM	1030617021	Bill Rowan	021. Plasma. Disruption at 0.81s Next shot. No PCS changes.
Jun 17 2003 12:59:50:187PM	1030617022	Bill Rowan	022. Plasma. Disruption at 0.75 s Next shot. ZXL moved up by 5mm
Jun 17 2003 01:14:02:320PM	1030617023	Bill Rowan	023. Plasma. Next shot. Increased nl_04 from 7.0e+19 to 7.5e19
Jun 17 2003 01:26:47:810PM	1030617024	Bill Rowan	024. Plasma. Next shot. Slight change in Ip at the changeover from segment 1 to segment 2
Jun 17 2003 01:50:27:983PM	1030617026	Bill Rowan	026. Plasma Disruption at 1.2s Next shot. Increase IP to 1 MA
Jun 17 2003 02:06:55:697PM	1030617027	Bill Rowan	027. Plasma. Next shot. Decrease the nl_04 from 7.5e+19 to 5.0e+19 EO: Bill Parkin
Jun 17 2003 02:21:13:453PM	1030617028	Bill Rowan	028. Plasma. Disruption at 2.3s Next shot. Increase nl_04 from 5.0e+19 to 9.5e+19 zcur moved up by 5mm
Jun 17 2003 02:40:31:390PM	1030617029	Bill Rowan	029. Died at approximately 0.14s. Next shot. No changes.
Jun 17 2003 02:50:43:170PM	1030617030	Bill Rowan	030. Plasma. Full length. Next shot. Repeat.
Jun 17 2003 03:00:16:437PM	1030617031	Bill Rowan	031. Plasma. Disruption at 1.4s Next shot. C-coils turned off by engineers A-coil demand set to zero
Jun 17 2003 03:11:23:250PM	1030617032	Bill Rowan	032. Plasma. Full length. Last shot. We are stopping at 3pm today.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	07:57:42:557AM	Plasma	Ok
2	08:11:53:717AM	Plasma	Ok
3	08:26:05:360AM	Plasma	Ok
4	08:39:04:170AM	Plasma	Ok
5	08:52:27:170AM	Plasma	Ok
6	09:05:36:637AM	Plasma	Ok
7	09:18:28:650AM	Plasma	Ok
8	09:31:50:087AM	Plasma	Ok
9	09:44:47:130AM	Plasma	Ok
10	09:58:58:773AM	Plasma	Ok
11	10:11:56:583AM	Plasma	Ok
12	10:25:11:457AM	Plasma	Ok
13	10:38:08:093AM	Plasma	Ok
14	10:51:53:570AM	Plasma	Ok
15	11:16:36:403AM	Plasma	Ok
16	11:29:33:957AM	Plasma	Ok
17	11:43:18:663AM	Plasma	Ok
18	11:56:04:557AM	Plasma	Ok
19	12:09:17:420PM	Plasma	Ok
20	12:23:00:270PM	Plasma	Ok
21	12:36:02:120PM	Plasma	Ok
22	12:48:56:343PM	Plasma	Ok
23	01:02:00:237PM	Plasma	Ok
24	01:15:01:413PM	Plasma	Ok
25	01:28:11:450PM	Plasma	Ok
26	01:44:25:770PM	Plasma	Ok
27	01:57:47:400PM	Plasma	Ok
28	02:11:24:033PM	Plasma	Ok
29	02:24:33:257PM	Plasma	Ok
30	02:39:43:857PM	Plasma	Ok
31	02:52:49:660PM	Plasma	Ok
32	03:05:51:257PM	Plasma	Ok