Miniproposals

Miniproposal: 349 Date Filed: 6/24/2003 Title: Antenna Evaluation: D-port quarter-wavelength transformers prematchingperformance and J-port Antenna First Author: Steve Wukitch Session Leader: Steve Wukitch (shots 1-29)

Engineering Operator Run Comment

Purpose: MP349, Antenna Evaluation (Cont'd)/Wukitch/Parker

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Entered: Jul 7 2004 03:49:33:850PM

Author: Steve Wukitch

Engineering Setup & Run Plan for Thursday, July 10, 2003 PURPOSE: MP349, Antenna Evaluation (Cont'd) Session Leader: Wukitch Physop: Parker ENGINEERING SETUP ECDC overnight in Deuterium, p = 2e-4 Torr 60 C Bake Overnight Run Starts at 9:00 AM and Ends at 5:00 PM Power Systems as for 1030708018 A coils in same configuration as on 1030708 Gas setup: Fill B-Top with 6 psi of D2 hybrid enabled (PG4) Fill B-side lower with 30 psi H2 Hybrid Disabled (PG1) Fill B-side upper with 10 psi D2 Hybrid Disabled (PG2) fill C-side with 30 psi D2 Hybrid enabled (PG3) ICRF: All transmitters in Run On by 8:00 AM Enable the ECE, VUV and DNB gate-valves, assuming no vacuum problems Z-Bolo shutter should be open for run +90deg is ctr-current 220deg -90deg is co-current 30deg *********************************************************************************** PLC malfunction and the torus pressure went to 10^-5 torr scale. One theory is that the cryo was opened to vacuum after it had been warmed. 001 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran clean J: ran clean but missing J3 (no gate/no kalmus) 002 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran clean J: ran clean but missing J3 (no gate/no kalmus) 003 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [0.6,1] sec E: 0.6 MW [0.6,1] sec J: 1.2 MW [1.1,1.45] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran clean J: ran clean 004 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran 1 fault E: ran 3 faults J: ran 6 faults adjust field to 5.2T 005 BT~5.2 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.45] sec E: 0.6 MW [1.1,1.45] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran 2 faults J: ran clean 006 BT~5.2 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 30deg/-90deg result: plasma D: ran clean E: ran 1 fault J: ran clean ST period is shorter for -90deg (0.005 sec) than +90deg (0.016 sec) 007 BT~5.2 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma D: ran clean E: ran 2 fault J: ran 1 fault 008 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma - early disruption D: 0 E: 0 J: ran clean 009 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: NTP 010 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma D: ran max faults E: ran max faults J: ran clean 011 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma D: ran 5 faults E: ran 4 faults J: ran clean 012 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 30deg/-90deg result: plasma D: ran clean E: ran 3 faults J: ran 1 fault 013 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran 1 fault J: ran 1 fault repeat - impurity accumulation in first H-mode sparkle from J 014 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran fault J: ran 1 fault sparkle from J Begin MCCD experiments 015 BT~5.8 T, Ip~0.6 MA, nl04~0.6 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults 016 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults 017 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults 018 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma - early disruption @1sec D: ran clean E: ran max faults J: ran max faults H/D started at 0.5 and decayed to 0.2 20 minutes of ECDC in H2 019 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: NTP 020 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults H/D around 1 021 BT~5.8 T, Ip~0.6 MA, nl04~0.9 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma - early disruption @0.7sec D: ran clean E: ran J: ran 022 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma - early disruption @0.7sec D: ran clean E: ran with faults J: ran max faults 023 BT~5.8 T, Ip~0.6 MA D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma - early disruption D: ran clean E: ran with faults J: ran with faults 024 BT~5.8 T, Ip~0.6 MA, nl04~ D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran max faults E: ran max faults J: ran max faults changed He3 to feedback control missing Bira for D and E 025 BT~5.8 T, Ip~0.8 MA D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran max faults E: ran with faults J: ran max faults better control of density 026 BT~5.8 T, Ip~0.8 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: no bira E: no bira J: ran 2 faults H/D ~1 027 BT~5.8 T, Ip~0.8 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: no bira E: no bira J: ran 1 fault Summary: Obtained good antenna phasing data in the first half of the run. The performance appears to be independent of phasing and J antenna was similar to D and E-port. With -90deg the sawtooth period in L-mode was 5 msec and was 16 msec with +90deg. In H-mode, there was little affect on the sawtooth period. The second half the day attempted to do mode conversion current drive. We were unsuccessful in reducing the D level to obtain mode conversion. We did find that the He3 needed to be in feedback to control the density. Once we had density control, J-port ran better but we lost D and E to a crate power supply failure.

Physics Operator Summaries

Entered: Jul 7 2004 04:37:18:753PM

Author: Ron Parker

Engineering Setup & Run Summary for Thursday, July 10, 2003 PURPOSE: MP349, Antenna Evaluation (Cont'd) MP345, Mode Conversion Current Drive Session Leader: Wukitch Physop: Parker ENGINEERING SETUP ECDC overnight in Deuterium, p = 2e-4 Torr 60 C Bake Overnight Run Starts at 9:00 AM and Ends at 5:00 PM Power Systems as for 1030708018 A coils in same configuration as on 1030708 Gas setup: Fill B-Top with 6 psi of D2 hybrid enabled (PG4) Fill B-side lower with 30 psi H2 Hybrid Disabled (PG1) Fill B-side upper with 10 psi D2 Hybrid Disabled (PG2) fill C-side with 30 psi D2 Hybrid enabled (PG3) ICRF: All transmitters in Run On by 8:00 AM Enable the ECE, VUV and DNB gate-valves, assuming no vacuum problems Z-Bolo shutter should be open for run Run Summary The first 14 shots were in line with MP 349, comparing the performance of J-Port and the D&E antennas. The machine and RF both ran well for this comparison. Then, starting with shot 15, the program switched to MP 345, mode conversion current drive. This involved operating with H2-He3 plasmas, with high H/D ratios. For this purpose, the feedback pulsed gas valve was backfilled with H2. however, H/D ratios never got above ~ 50 % even with a short period of discharge cleaning in H2.. Also, it was not possible to control the density below nl04 ~ 0.8 e20 m-2 with the Rf on. Beginning with shot 25, He3 gas was also injected using the density feedback controller with the same gain as for the H2 gas valve. With no measurement of the He density, it was not possible to determine the He3/H ratio. In view of difficulty in getting high enough H/D ratio, discharge cleaning in H2 was done for 20 minutes after shot 18. This increased the H/D ratio by over a factor of 2 but still not high enough for current drive. Also, gas coming from the RF antennas made it impossible to keep the density below 0.8 e20 m-2 By shot 27, Rf was having CAMAC problems and, in view of the lateness of the run day, it was decided to terminate RF shots. One more plasma shot was taken for the NBI diagnostic, followed by a TF-only shot loaded from 1030709035. For the first 14 shots, normal H minority heating,the machine ran well with 2 disruptions caused by late Li pellet injections. One disruption required a fizzle to clean up.For the mode conversion current drive experiments, the plasmas started up well, but tended to be disruptive. Scorecard:27 plasma attemps, 25 good startup plasmas, 2 Fizzles, 5 disruptions

Session Leader Comments
Jul 10 2003 09:23:24:750AM	1030710001	Steve Wukitch	001 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran clean J: ran clean but missing J3 (no gate) repeat
Jul 10 2003 09:46:05:200AM	1030710002	Steve Wukitch	002 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran clean J: ran clean but missing J3 (no gate/no kalmus)
Jul 10 2003 09:46:32:560AM	1030710003	Steve Wukitch	003 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [0.6,1] sec E: 0.6 MW [0.6,1] sec J: 1.2 MW [1.1,1.45] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran clean J: ran clean
Jul 10 2003 10:01:07:163AM	1030710004	Steve Wukitch	004 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran 1 fault E: ran 3 faults J: ran 6 faults adjust field to 5.2T
Jul 10 2003 10:25:42:853AM	1030710005	Steve Wukitch	005 BT~5.2 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran 2 faults J: ran clean
Jul 10 2003 10:24:55:693AM	1030710006	Steve Wukitch	006 BT~5.2 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 30deg/-90deg result: plasma D: ran clean E: ran 1 fault J: ran clean late pellet
Jul 10 2003 10:53:14:450AM	1030710007	Steve Wukitch	ST period is shorter for -90deg (0.005 sec) than +90deg (0.016 sec) 007 BT~5.2 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma D: ran clean E: ran 2 fault J: ran 1 fault
Jul 10 2003 11:07:10:930AM	1030710008	Steve Wukitch	008 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma - early disruption D: 0 E: 0 J: ran clean
Jul 10 2003 11:07:38:620AM	1030710009	Steve Wukitch	009 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: NTP
Jul 10 2003 12:44:26:900PM	1030710010	Steve Wukitch	010 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma D: ran max faults E: ran max faults J: ran clean
Jul 10 2003 01:01:02:150PM	1030710011	Steve Wukitch	011 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 140deg/symmetric result: plasma D: ran 5 faults E: ran 4 faults J: ran clean
Jul 10 2003 01:01:17:463PM	1030710012	Steve Wukitch	012 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 30deg/-90deg result: plasma D: ran clean E: ran 3 faults J: ran 1 fault
Jul 10 2003 01:01:31:900PM	1030710013	Steve Wukitch	013 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran 1 fault J: ran 1 fault repeat - impurity accumulation in first H-mode sparkle from J
Jul 10 2003 01:01:56:527PM	1030710014	Steve Wukitch	014 BT~5.2 T, Ip~0.8 MA, nl04~0.8, SNL D: 1.2 MW [1.1,1.45] sec E: 1.2 MW [1.1,1.45] sec J: 2.5 MW [0.6,1] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran fault J: ran 1 fault sparkle from J
Jul 10 2003 01:05:37:393PM	1030710015	Steve Wukitch	Begin MCCD experiments 015 BT~5.8 T, Ip~0.6 MA, nl04~0.6 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults
Jul 10 2003 01:43:39:530PM	1030710016	Steve Wukitch	016 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults
Jul 10 2003 01:44:39:500PM	1030710017	Steve Wukitch	017 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults
Jul 10 2003 01:54:06:753PM	1030710018	Steve Wukitch	018 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma - early disruption @1sec D: ran clean E: ran max faults J: ran max faults
Jul 10 2003 03:03:35:853PM	1030710019	Steve Wukitch	H/D started at 0.5 and decayed to 0.2 20 minutes of ECDC in H2 019 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: NTP
Jul 10 2003 03:04:24:670PM	1030710020	Steve Wukitch	020 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 1.0 MW [0.6,1.3] sec J: 2.5 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran max faults J: ran max faults H/D around 1
Jul 10 2003 03:04:41:637PM	1030710021	Steve Wukitch	021 BT~5.8 T, Ip~0.6 MA, nl04~0.9 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma - early disruption @0.7sec D: ran clean E: ran J: ran
Jul 10 2003 04:03:17:110PM	1030710022	Steve Wukitch	022 BT~5.8 T, Ip~0.6 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran with faults J: ran max faults
Jul 10 2003 04:03:39:737PM	1030710023	Steve Wukitch	023 BT~5.8 T, Ip~0.6 MA D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran clean E: ran with faults J: ran with faults
Jul 10 2003 04:17:37:607PM	1030710024	Steve Wukitch	024 BT~5.8 T, Ip~0.6 MA, nl04~ D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran max faults E: ran max faults J: ran max faults changed He3 to feedback control missing Bira for D and E
Jul 10 2003 04:20:27:487PM	1030710025	Steve Wukitch	025 BT~5.8 T, Ip~0.8 MA D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: ran max faults E: ran with faults J: ran max faults better control of density
Jul 10 2003 04:20:46:847PM	1030710026	Steve Wukitch	026 BT~5.8 T, Ip~0.8 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: no bira E: no bira J: ran 2 faults H/D ~1
Jul 10 2003 04:40:52:463PM	1030710027	Steve Wukitch	027 BT~5.8 T, Ip~0.8 MA, nl04~0.7 D: 1.0 MW [0.6,1.3] sec E: 0.8 MW [0.6,1.3] sec J: 1.0 MW [0.6,1.3] sec phase setting to 220deg/+90deg result: plasma D: no bira E: no bira J: ran 1 fault

Physics Operator Comments
Jul 10 2003 09:21:41:433AM	1030710001	Ron Parker	For shot 1, shot 1030708018 was loaded and ran well in spite of vacuum accident (PLC malfunction) with unknown consequences during last shot on 1030709. Ratiomatic will not be working today. Shot 2: Repeat
Jul 10 2003 09:29:36:933AM	1030710002	Ron Parker	Shot 2 ran well. RF powerlevel about 1.25 MW, J port antenna and D&E antenna operation is anticoincident.
Jul 10 2003 09:46:49:467AM	1030710003	Ron Parker	Shot 3 ran well, identical to shots 1&2. Shot 4: Li pellet injection after RF but before rampdown. More power.
Jul 10 2003 09:58:48:783AM	1030710004	Ron Parker	Shot 4 ran well, but RF was intermittent. Shot 5: Same shot except TF ramped down to 5.2 T after startup.
Jul 10 2003 10:15:30:690AM	1030710005	Ron Parker	Shot 5 ran well, RF power ramping and peaking at ~ 2.6 MW for J and D&E antennas, still anticoincident. Next shot: no changes.
Jul 10 2003 10:27:14:607AM	1030710006	Ron Parker	Shpt 6 ran, but disrupted probably due to Li pellet injected at t = 1.45 s. No pellet for next shot. No other changes.
Jul 10 2003 10:45:43:233AM	1030710007	Ron Parker	Shot 7 recovered from the disruption on shot 6 and ran well. Next shot: single null, lower X-point. Shot 1030708015, segment 2 loaded.
Jul 10 2003 11:02:30:407AM	1030710008	Ron Parker	Shot 8 ran and was diverted, but disrupted at 0.93 sec. Try again, next shot.
Jul 10 2003 11:09:05:250AM	1030710009	Ron Parker	Shot 9 fizzled, presumably standard post-disruption syndrome. Try again, next shot.
Jul 10 2003 11:29:45:460AM	1030710010	Ron Parker	Shot 10 recovered and ran well. No changes for next shot.
Jul 10 2003 11:54:18:537AM	1030710011	Ron Parker	Between shot 10 and 11 there was a phantom "shot" -- the sequencer missed a state during the countdown. Shot 11 ran well as programmed. Next shot: no changes.
Jul 10 2003 12:00:08:550PM	1030710012	Ron Parker	Shot 12 ran OK but disrupted due to pellet injection after RF. Pellets have finished up for the day. Next shot: disruption recovery.
Jul 10 2003 12:12:26:667PM	1030710013	Ron Parker	Surprisingly, no fizzle. Next shot: one more time.
Jul 10 2003 12:53:48:340PM	1030710014	Ron Parker	Shot 14 ran well, although without power from E-port antenna. Now for something interesting -- hydrogen discharges for MP 345. First, we'll reload shot 7 from today (limited). Then, the density feedback valve will be filled with H2 (using shot 1000623004 for feedforward waveform.) Also, He3 will be injected from PG 2 using the same shot for the template waveform. The prefill remains D2. Fianlly, the machine parameters will be changed to 5.8 T, 0.6 MA and nl04 = 0.6e20 m-2.
Jul 10 2003 12:54:51:310PM	1030710015	Ron Parker	Shot 15 ran well with the desired parameters realized. Only D-port antenna launched significant power.
Jul 10 2003 01:11:08:403PM	1030710016	Ron Parker	Shots are running well, but H2 concentration remains low ~ 15%. We'll increase programmed density to nl04 = 0.8 m-2 for next shot.
Jul 10 2003 01:25:30:090PM	1030710017	Ron Parker	Shot 17 ran well and was successful in increasing the H2 fraction, initially to ~ 0.5, droppng to 0.3 during RF. Repeat for next shot.
Jul 10 2003 01:43:39:640PM	1030710018	Ron Parker	Shot 18 disrupted -- no apparent reason.Try again next shot.
Jul 10 2003 02:32:13:763PM	1030710018	Ron Parker	We want to get the H2/D2 ratio up, so we'll discharge clean for 20 minutes discharge in H2 then setup for next shot.
Jul 10 2003 02:29:32:430PM	1030710019	Ron Parker	Not surprisingly, shot 19 fizzled after the DC break. We'll try it again and if the inital density is still too high, we'll lower the fill pressure.
Jul 10 2003 02:48:19:497PM	1030710020	Ron Parker	Shot 20 recovered, with a disruption on rampdown. H2/D2 ratio started at ~ 90% and decreased to 45-50% later in shot.
Jul 10 2003 03:09:04:803PM	1030710021	Ron Parker	Shot 21 disrupted beginning at about 600 ms.
Jul 10 2003 03:13:28:047PM	1030710022	Ron Parker	Shot 22 ran better, but still disrupted beginning at at 1.3 s For next shot, programmed density will be lowered from 0.8 to 0.6 e20 m-2.
Jul 10 2003 03:50:04:320PM	1030710023	Ron Parker	Shot 23 started up, but disrupted around 0.65 sec. Next shot: increase current to 800 kA.
Jul 10 2003 03:49:31:800PM	1030710024	Ron Parker	Shot 24 ran at 800 kA and did not disrupt, although there are a few strange glitches in Ip For shot 25, the He3 gas (PG 2) will be put under feedback control in equal amplitude (with respect to the controller) to the H2 valve (PG 3). This is an attempt to bring the H/He3 ratio close to unity. Meanwhile, RF has developed a CAMAC problem and there will be a delay.
Jul 10 2003 03:58:20:880PM	1030710025	Ron Parker	Shot 25 ran OK, but still some divots in the current during the late stasge of rampup. The density is still too high, so we'll eliminate the feedforward. Also, we'll increase the current ramp rate late in rampup to try to eliminate the divots.
Jul 10 2003 04:05:05:520PM	1030710026	Ron Parker	Shot 26 ran OK, current divots were reduced by ramping current faster in late stages of rampup.
Jul 10 2003 04:37:12:520PM	1030710027	Ron Parker	Shot 27 ran , density still exceeds programmed level (0.8 vs. 0.6 m-2). RF will cease operation due to CAMAC problems and low H/D ratio. Next shot will have no RF, for NBI diagnostic.
Jul 10 2003 04:50:42:577PM	1030710028	Ron Parker	Shot 28 ran well, and the density was regulated at 0.6 m-2 (nl04). Shot 29 will have TF only for NBI diagnostic calibration. For this, shot 1030709035 was loaded.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:08:04:373AM	Plasma	Ok
2	09:23:27:090AM	Plasma	Ok
3	09:36:12:633AM	Plasma	Ok
4	09:49:53:813AM	Plasma	Ok
5	10:02:42:887AM	Plasma	Ok
6	10:15:57:380AM	Plasma	Ok
7	10:29:21:750AM	Plasma	Ok
8	10:51:34:730AM	Plasma	Ok
9	11:05:18:570AM	Plasma	Ok
10	11:18:06:063AM	Plasma	Ok
11	11:31:30:010AM	Plasma	Ok
12	11:55:51:743AM	Plasma	Ok
13	12:08:31:270PM	Plasma	Ok
14	12:23:08:157PM	Plasma	Ok
15	12:46:50:950PM	Plasma	Ok
16	01:00:02:743PM	Plasma	Ok
17	01:16:11:180PM	Plasma	Ok
18	01:37:53:877PM	Plasma	Ok
19	02:21:54:493PM	Plasma	Ok
20	02:35:53:083PM	Plasma	Ok
21	02:49:22:920PM	Plasma	Ok
22	03:02:29:900PM	Plasma	Ok
23	03:16:40:677PM	Plasma	Ok
24	03:31:03:017PM	Plasma	Ok
25	03:48:34:033PM	Plasma	Ok
26	04:02:11:187PM	Plasma	Ok
27	04:15:12:587PM	Plasma	Ok
28	04:41:55:293PM	Plasma	Ok
29	04:55:27:787PM	Test	Ok