| Miniproposals | ||||||||||||
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| Operators | |
| Session leader(s): | Yijun Lin,Steve Wukitch |
| Physics operator(s): | Earl Marmar,Joseph Snipes |
| Engineering operator(s): | Bill Cochran,Ed Fitzgerald,Bill Parkin |
| Engineering Operator Run Comment |
| Characterize J antenna @ 2MW. Wukitch/Lin/Snipes/Cochran/Fitzgerald/Par |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Entered: Jul 7 2004 03:49:29:833PM |
| Author: To Be Determined |
| Engineering setup for Thursday 22 Aug 2002 Session leader: S. Wukitch, Y. Lin Physics operator: J. Snipes ECDC in the morning, if possible, stopping by 07:00. Set up for possible ECDC in D2 between shots. Run begins at 09:00 and ends at 17:00. Set up power systems as on 1020821003. 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) leave J-Bottom as is Hybrid DISABLED (PG5) Enable the following gate valves, assuming no vacuum problems: ECE, VUV, DNB ------------------------------------------------------------------------------- RF Setup: FMIT#2,3&4 transmitters in Run On by 07:00. ------------------------------------------------------------------------------- Run Plan: Characterize J antenna @ 2 MW. @4.6T power ramp [0.1-2.0 MW] (2 shots) @4.6T current scan = 0.7,0.9,1.1 MA (5 shots) @4.6T gap scan [0.5,1.0,1.5,2.0] (6 shots) @4.6T density scan [0.6,1.0,1.2] (4 shots) BT scan 3.8,4.2,5.0,5.4 T (6 shots) (0.9 MA) using discharge with lightest loading - maximize peak voltage (10 shots) @5.0 T maximize RF power to plasma (infinite) ------------------------------------------------------------------------------- 001 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 0.2-2 MW ramp [0.6,1.5] sec result: early disruption ~0.17 sec J injection kill 002 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 0.2-2 MW ramp [0.6,1.5] sec result: plasma J: 0.2-2 MW ramp with faulting action: repeat 003 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 0.2-2 MW ramp [0.6,1.5] sec result: plasma J: 0.2-2 MW ramp with faulting action: try some power conditioning 1 MW sec pulse 004 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 1.0 MW ramp [0.6,1.5] sec result: plasma - EDA J: 1.0 MW with 3 faults - much better action: raise power to 1.4 MW on J start E [1.2,1.5] sec @1 MW 005 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.0 MW [1.2,1.5] sec J: 1.4 MW [0.6,1.5] sec result: plasma - EDA E: 1.0 MW J: 1.4 MW with 3 faults - better action: J to 1.8 MW E to 1.3 MW 006 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.3 MW [1.2,1.5] sec J: 1.8 MW [0.6,1.5] sec result: plasma - EDA injection from J - K-side of septum @midplane E: 1.3 MW with multiple faults J: 1.8 MW with 2 faults action: J to 2.2 MW E to 1.2 MW 007 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.2 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.2 MW with 3 faults J: 2.2 MW with max faults action: repeat 008 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.2 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.2 MW clean J: 2.2 MW with max faults but better action: E to 1.4 MW 009 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.4 MW 2 faults J: 2.2 MW with 8 faults action: repeat 010 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.4 MW 3 faults J: 2.2 MW with 8 faults action: J to 2.6 MW 011 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.6 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 3 faults J: 2.6 MW with max faults action: repeat 012 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.6 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 3 faults J: 2.6 MW with max faults action: repeat 013 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.6 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 2 faults J: 2.6 MW with max faults action: lower density to 0.8 and lower J to 2.4 MW 014 request: SN, BT~4.5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.4 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 2 faults J: 2.4 MW 3 faults action: dynamic gap scan 1 cm to 2 cm 0.7 to 1.5 sec J to 2 MW E off 015 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0-2.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: fizzle 016 request: SN, BT~4.5 T, nl_04~0.8, Ip~0.75, right ~1.0-2.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA 1-6 cm E: 0 MW J: 2.0 MW max faults once gap reaches 2 cm action: dynamic Ip scan 0.75-1.1 MA 0.7 to 1.5 sec note: interesting ohmic H-mode at 4.6T with gap 2 cm 017 request: SN, BT~4.5 T, nl_04~0.8, Ip~0.75-1.1, right ~1.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA E: 0 MW J: 2.0 MW clean action: BT->4.2 018 request: SN, BT~4.2 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA E: 0 MW J: 2.0 MW clean action: BT->5.0 T and E->1.0 MW [1.2,1.5] sec 019 request: SN, BT~5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA E: 1.0 MW J: 2.0 MW clean action: J -> 2.4 MW and E->1.3 MW [0.6,1.5] sec 020 request: SN, BT~5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.4 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW two faults J: 2.4 MW two faults action: J -> 2.8 MW and E->1.4 MW [0.8,1.5] sec 021 request: SN, BT~5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.8 MW [0.6,1.5] sec result: plasma - EDA -early disruption ~1.2 sec E: 1.4 MW 6 faults J: 2.8 MW 4 faults Summary: After a late start and vacuum conditioning both E and J to 39 kV, we began with the intent of characterizing the J-port antenna at 70 MHz. We were side tracked early by excessive faulting so we power conditioned to 2.6 MW. We modified the run plan to include a dynamic scan of the right gap and plasma current which were successful. The right gap scan showed that the J-port can couple out to 2 cm without significantly lowering the loading in EDA (5.8->5.25 ohms). The current scan suggested an even weaker dependence. We then did an abbreviated field scan and coupled 2.8 MW from J into a 5 T discharge. The antenna operated well into both low field and high field side resonance positions. Further tests at 3.8 T and 5.4 T will be necessary to complete this scan. We skipped the maximizing the voltage since we expect that this can be found in piggyback. The conditioning required at the beginning of the day is troublesome. We hope this not necessary everyday. It appears that E-port has trouble (multiple faults) at high power (>1.2 MW) and J-port has trouble at >1 MW. J-port quickly conditioned to 1.8 MW but took 7 shots to condition to 2.4 MW. We conclude that vacuum conditioning is no longer improving the antenna performance in plasma operation. We think approaching high power operation requires starting at moderate power levels and working up. On Tuesday, we tried going right to 2 MW but the faulting never ceased. |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:15:897PM |
| Author: To Be Determined |
| Engineering setup for Thursday 22 Aug 2002 Session leader: S. Wukitch, Y. Lin Physics operator: J. Snipes ECDC in the morning, if possible, stopping by 07:00. Set up for possible ECDC in D2 between shots. Run begins at 09:00 and ends at 17:00. Set up power systems as on 1020821003. 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) leave J-Bottom as is Hybrid DISABLED (PG5) Enable the following gate valves, assuming no vacuum problems: ECE, VUV, DNB ------------------------------------------------------------------------------- RF Setup: FMIT#2,3&4 transmitters in Run On by 07:00. ------------------------------------------------------------------------------- Run Plan: Characterize J antenna @ 2 MW. @4.6T power ramp [0.1-2.0 MW] (2 shots) @4.6T current scan = 0.7,0.9,1.1 MA (5 shots) @4.6T gap scan [0.5,1.0,1.5,2.0] (6 shots) @4.6T density scan [0.6,1.0,1.2] (4 shots) BT scan 3.8,4.2,5.0,5.4 T (6 shots) (0.9 MA) using discharge with lightest loading - maximize peak voltage (10 shots) @5.0 T maximize RF power to plasma (infinite) Summary: We had a late start today due to damage yesterday in the alternator circuits where fuses and resistors needed to be replaced. We started just after noon. ICRF coupling studies were performed on the J-port antenna and we made progress on understanding the coupling. We had 21 pulses of which 20 had plasma and one fizzle. Shot 1 disrupted early, but the other 19 plasmas were full length. Overall, it was a reasonably successful run despite the delay. Shot 1: Marmar sitting in as physop for Snipes until about 12:30 10 minutes of ECDC before shot 1 (ICRF was vacuum conditioning) load from 1020821003; reduce PG-4 prefill puff to 25 msec from 27 plasma disrupt at 0.17 seconds (big injection; wide view indicates vicinity of J-port) Shot 2: increase prepuff (PG-4) to 27 msec from 25 plasma Snipes now taking over as physop Shot 3: Repeat. Good shot! Shot 4: Repeat. Good shot! Shot 5: Repeat. Good shot! Shot 6: Repeat. Good shot! Shot 7: Repeat. Increase Ar puff to 40 ms duration. Good shot! Shot 8: Repeat. D puff added at 1.5 s by Jim Terry. Good shot! Shot 9: Repeat. Good shot! Shot 10: Repeat. Good shot! Shot 11: Repeat. Good shot! Shot 12: Repeat. Good shot! Shot 13: Repeat. Good shot! Shot 14: Repeat. Good shot! Shot 15: Fizzle! Shot 16: RCUR ramp by 2 cm inward to increase the outer gap from 0.7 s - 1.6 s. Good shot, though it was a bit aggressive on the gap scan. I should have ramped RCUR by 1 cm instead. Shot 17: Reloaded shot 14 to remove the gap scan then added a ramp in Ip from 0.7 s - 1.5 s ramping from 0.8 MA to 1.1 MA. Good shot. Shot 18: Reloaded shot 14 and then reduced the TF current from -127 kA to -116 kA during the flattop to reduce the TF to 4.2 T. Good shot. Shot 19: Increased the TF current to -140.7 kA during the flattop to increase the TF to 5.0 T. Good shot. Shot 20: Repeat. Good shot. Shot 21: Repeat. Good shot. |
| Session Leader Comments | |||
| Aug 22 2002 12:41:55:087PM | 1020822002 | Steve Wukitch | 002 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 0.2-2 MW ramp [0.6,1.5] sec result: plasma J: 0.2-2 MW ramp with faulting action: repeat |
| Aug 22 2002 01:01:45:233PM | 1020822003 | Steve Wukitch | 003 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 0.2-2 MW ramp [0.6,1.5] sec result: plasma J: 0.2-2 MW ramp with faulting action: try some power conditioning - 1 MW sec pulse |
| Aug 22 2002 01:11:25:627PM | 1020822004 | Steve Wukitch | 004 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 0 MW J: 1.0 MW ramp [0.6,1.5] sec result: plasma - EDA J: 1.0 MW with 3 faults - much better action: raise power to 1.4 MW on J start E [1.2,1.5] sec @1 MW |
| Aug 22 2002 01:23:21:337PM | 1020822005 | Steve Wukitch | 005 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.0 MW [1.2,1.5] sec J: 1.4 MW [0.6,1.5] sec result: plasma - EDA E: 1.0 MW J: 1.4 MW with 3 faults - better action: J to 1.8 MW E to 1.3 MW |
| Aug 22 2002 01:41:06:857PM | 1020822006 | Steve Wukitch | 006 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.3 MW [1.2,1.5] sec J: 1.8 MW [0.6,1.5] sec result: plasma - EDA injection from J - K-side of septum @midplane E: 1.3 MW with multiple faults J: 1.8 MW with 2 faults action: J to 2.2 MW E to 1.2 MW |
| Aug 22 2002 01:48:07:750PM | 1020822007 | Steve Wukitch | 007 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.2 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.2 MW with 3 faults J: 2.2 MW with max faults action: repeat |
| Aug 22 2002 02:05:21:930PM | 1020822008 | Steve Wukitch | 008 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.2 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.2 MW clean J: 2.2 MW with max faults but better action: E to 1.4 MW |
| Aug 22 2002 02:23:13:563PM | 1020822009 | Steve Wukitch | 009 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.4 MW 2 faults J: 2.2 MW with 8 faults action: repeat |
| Aug 22 2002 02:39:25:743PM | 1020822010 | Steve Wukitch | 010 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.2 MW [0.6,1.5] sec result: plasma - EDA another injection from J E: 1.4 MW 3 faults J: 2.2 MW with 8 faults action: J to 2.6 MW |
| Aug 22 2002 02:47:45:310PM | 1020822011 | Steve Wukitch | 011 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.6 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 2 faults J: 2.6 MW with max faults action: repeat |
| Aug 22 2002 03:05:11:673PM | 1020822012 | Steve Wukitch | 012 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.6 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 2 faults J: 2.6 MW with max faults action: repeat |
| Aug 22 2002 03:16:34:397PM | 1020822013 | Steve Wukitch | 013 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.6 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 2 faults J: 2.6 MW with max faults action: lower density to 0.8 and lower J to 2.4 MW |
| Aug 22 2002 03:35:40:077PM | 1020822014 | Steve Wukitch | 014 request: SN, BT~4.5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.4 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW 2 faults J: 2.4 MW 3 faults action: dynamic gap scan 1 cm to 2 cm 0.7 to 1.5 sec J to 2 MW E off |
| Aug 22 2002 03:45:28:643PM | 1020822015 | Steve Wukitch | 015 request: SN, BT~4.5 T, nl_04~1, Ip~0.75, right ~1.0-2.0 cm E: 0 MW [1.2,1.5] sec J: 2.4 MW [0.6,1.5] sec result: fizzle |
| Aug 22 2002 04:22:00:580PM | 1020822016 | Steve Wukitch | 016 request: SN, BT~4.5 T, nl_04~0.8, Ip~0.75, right ~1.0-2.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA 1-6 cm E: 0 MW J: 2.0 MW max faults once gap reaches 2 cm action: dynamic Ip scan 0.75-1.1 MA 0.7 to 1.5 sec note: interesting ohmic H-mode at 4.6T with gap 2 cm |
| Aug 22 2002 04:26:22:533PM | 1020822017 | Steve Wukitch | 017 request: SN, BT~4.5 T, nl_04~0.8, Ip~0.75-1.1, right ~1.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA E: 0 MW J: 2.0 MW clean action: BT->4.2 |
| Aug 22 2002 04:35:12:567PM | 1020822018 | Steve Wukitch | 018 request: SN, BT~4.2 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA E: 0 MW J: 2.0 MW clean action: BT->5.0 T and E->1.0 MW [1.2,1.5] sec |
| Aug 22 2002 04:40:47:010PM | 1020822019 | Steve Wukitch | 019 request: SN, BT~5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.0 MW [1.2,1.5] sec J: 2.0 MW [0.6,1.5] sec result: plasma - EDA E: 1.0 MW J: 2.0 MW clean action: J -> 2.4 MW and E->1.3 MW [0.6,1.5] sec |
| Aug 22 2002 04:59:24:390PM | 1020822020 | Steve Wukitch | 020 request: SN, BT~5 T, nl_04~0.8, Ip~0.75, right ~1.0 cm E: 1.4 MW [1.2,1.5] sec J: 2.4 MW [0.6,1.5] sec result: plasma - EDA E: 1.4 MW two faults J: 2.4 MW two faults action: J -> 2.8 MW and E->1.4 MW [0.8,1.5] sec |
| Physics Operator Comments | |||
| Aug 22 2002 11:39:29:313AM | Earl Marmar | Date: 21-AUG-2002 14:22 Expires: 4-SEP-2002 00:00 From: SPANNA::SNIPES Subj: Run Plan for Thursday 1020822 Engineering setup for Thursday 22 Aug 2002 Session leader: S. Wukitch, Y. Lin Physics operator: J. Snipes ECDC in the morning, if possible, stopping by 07:00. Set up for possible ECDC in D2 between shots. Run begins at 09:00 and ends at 17:00. Set up power systems as on 1020821003. 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) leave J-Bottom as is Hybrid DISABLED (PG5) Enable the following gate valves, assuming no vacuum problems: ECE, VUV, DNB ------------------------------------------------------------------------------- RF Setup: FMIT#2,3&4 transmitters in Run On by 07:00. ------------------------------------------------------------------------------- Run Plan: Characterize J antenna @ 2 MW. @4.6T power ramp [0.1-2.0 MW] (2 shots) @4.6T current scan = 0.7,0.9,1.1 MA (5 shots) @4.6T gap scan [0.5,1.0,1.5,2.0] (6 shots) @4.6T density scan [0.6,1.0,1.2] (4 shots) BT scan 3.8,4.2,5.0,5.4 T (6 shots) (0.9 MA) using discharge with lightest loading - maximize peak voltage (10 shots) @5.0 T maximize RF power to plasma (infinite) | |
| Aug 22 2002 11:40:49:223AM | Earl Marmar | coldstart hybrid all matrices respond; no errors in log | |
| Aug 22 2002 12:26:12:563PM | 1020822001 | Earl Marmar | Marmar sitting in as physop for Snipes until about 12:30 10 minutes of ECDC before shot 1 (ICRF was vacuum conditioning) load from 1020821003; reduce PG-4 prefill puff to 25 msec from 27 plasma disrupt at 0.17 seconds (big injection; wide view indicates vicinity of J-port) |
| Aug 22 2002 12:35:47:677PM | 1020822002 | Earl Marmar | increase prepuff (PG-4) to 27 msec from 25 plasma Snipes now taking over as physop |
| Aug 22 2002 01:05:44:907PM | 1020822003 | Joseph Snipes | Shot 3: Repeat. Good shot! |
| Aug 22 2002 01:05:58:987PM | 1020822004 | Joseph Snipes | Shot 4: Repeat. Good shot! |
| Aug 22 2002 01:36:01:513PM | 1020822005 | Joseph Snipes | Shot 5: Repeat. Good shot! |
| Aug 22 2002 01:36:17:480PM | 1020822006 | Joseph Snipes | Shot 6: Repeat. Good shot! |
| Aug 22 2002 02:00:46:710PM | 1020822007 | Joseph Snipes | Shot 7: Repeat. Increase Ar puff to 40 ms duration. Good shot! |
| Aug 22 2002 02:02:41:600PM | 1020822008 | Joseph Snipes | Shot 8: Repeat. D puff added at 1.5 s by Jim Terry. Good shot. |
| Aug 22 2002 02:18:48:903PM | 1020822009 | Joseph Snipes | Shot 9: Repeat. Good shot! |
| Aug 22 2002 02:58:51:407PM | 1020822010 | Joseph Snipes | Shot 10: Repeat. Good shot! |
| Aug 22 2002 02:59:01:437PM | 1020822011 | Joseph Snipes | Shot 11: Repeat. Good shot! |
| Aug 22 2002 02:59:12:047PM | 1020822012 | Joseph Snipes | Shot 12: Repeat. Good shot! |
| Aug 22 2002 03:16:38:333PM | 1020822013 | Joseph Snipes | Shot 13: Repeat. Good shot! |
| Aug 22 2002 04:15:48:000PM | 1020822014 | Joseph Snipes | Shot 14: Repeat. Good shot. |
| Aug 22 2002 03:55:53:163PM | 1020822015 | Joseph Snipes | Shot 15: Fizzle! |
| Aug 22 2002 04:04:45:277PM | 1020822016 | Joseph Snipes | Shot 16: RCUR ramp by 2 cm inward to increase the outer gap from 0.7 s - 1.6 s. Good shot, though it was a bit aggressive on the gap scan. I should have ramped RCUR by 1 cm instead. |
| Aug 22 2002 04:15:22:857PM | 1020822016 | Joseph Snipes | Shot 17: Reloaded shot 14 to remove the gap scan then added a ramp in Ip from 0.7 s - 1.5 s ramping from 0.8 MA to 1.1 MA. Good shot. |
| Aug 22 2002 04:24:50:517PM | 1020822018 | Joseph Snipes | Shot 18: Reloaded shot 14 and then reduced the TF current from -127 kA to -116 kA during the flattop to reduce the TF to 4.2 T. Good shot. |
| Aug 22 2002 04:43:35:120PM | 1020822019 | Joseph Snipes | Shot 19: Increased the TF current to -140.7 kA during the flattop to increase the TF to 5.0 T. Good shot. |
| Aug 22 2002 04:53:35:823PM | 1020822020 | Joseph Snipes | Shot 20: Repeat. Good shot. |
| Aug 22 2002 05:05:53:893PM | 1020822021 | Joseph Snipes | Shot 21: Repeat. Good shot. |
| Aug 22 2002 05:11:37:630PM | 1020822021 | Joseph Snipes | Summary: We had a late start today due to damage yesterday in the alternator circuits where fuses and resistors needed to be replaced. We started just after noon. ICRF coupling studies were performed on the J-port antenna and we made progress on understanding the coupling. We had 21 pulses of which 20 had plasma and one fizzle. Shot 1 disrupted early, but the other 19 plasmas were full length. Overall, it was a reasonably successful run despite the delay. |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 12:13:11:240PM | Plasma | Ok | |
| 2 | 12:34:09:037PM | Plasma | Ok | |
| 3 | 12:50:27:400PM | Plasma | Ok | |
| 4 | 01:03:47:470PM | Plasma | Ok | |
| 5 | 01:16:27:880PM | Plasma | Ok | |
| 6 | 01:29:13:353PM | Plasma | Ok | |
| 7 | 01:41:57:623PM | Plasma | Ok | |
| 8 | 02:00:17:960PM | Plasma | Ok | |
| 9 | 02:15:10:717PM | Plasma | Ok | |
| 10 | 02:28:02:580PM | Plasma | Ok | |
| 11 | 02:42:04:040PM | Plasma | Ok | |
| 12 | 02:57:04:750PM | Plasma | Ok | |
| 13 | 03:09:57:800PM | Plasma | Ok | |
| 14 | 03:27:16:230PM | Plasma | Ok | |
| 15 | 03:41:53:690PM | Plasma | Ok | |
| 16 | 03:54:43:910PM | Plasma | Ok | |
| 17 | 04:10:24:277PM | Plasma | Ok | |
| 18 | 04:23:16:690PM | Plasma | Ok | |
| 19 | 04:36:16:210PM | Plasma | Ok | |
| 20 | 04:49:12:543PM | Plasma | Ok | |
| 21 | 05:02:04:830PM | Plasma | Ok | |