| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Unknown |
| Physics operator(s): | Bill Rowan |
| Engineering operator(s): | Unknown |
| Engineering Operator Run Comment |
| rom vacuum vent to Helium |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:13:817PM |
| Author: To Be Determined |
| Physop Summary for 1010712 ENGINEERING SETUP FOR 1010712: ECDC in D2 overnight stopping by 7:00 am. RUN BEGINS AT 9:00 AND ENDS AT 5:00 Power systems the same as for shot 1010711009 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 6 psi D2 Hybrid DISABLED (PG2) fill C-side with 30 psi D2 Hybrid enabled (PG3) fill J-Bottom with 6 psi He Hybrid DISABLED(PG5) Enable the following gate valves: ECE, DNB, VUV RF STATUS: XMTR 1 AND 2, RUN-ON STARTED AT 8:00 AM XMTR 3 AND 4, RUN-ON STARTED AT 7:00 AM RUN PLAN: Recovery from vacuum vent to Helium, determining and reducing H/D ratio, and determining RF matching coefficients for 70 MHz operation of J-Port antenna. We'll start with an 800 kA shot @ 5.3 T and n~1.e20, and take it from there. RUN SUMMARY Much of the day was devoted to instrumenting and testing the TF in search of the crowbar problem that appeared yesterday. See PHYSOP_SUMMARY_1010711). Shots 001-004 were engineering test shots. Prior to the first plasma attempt (shot 005), we did about 10 minutes of ECDC. The first two plasma attempts (005 and 006) were duds. ECDC between shots. One small change in BZ after the first dud (005). The third plasma attempt (007) was successful. Shot 009 disrupted at 0.45 s. After that, the fill was reduced by 1 ms from 22 ms to 21 ms. The density demand was reduced slightly at 0.18s. The final shot of the day was successful. SCORECARD Plasmas 3 Disruptions 1 Fizzles 0 Duds 2 Engineering tests 4 Total 10 |
| Session Leader Comments |
| Physics Operator Comments | |||
| Jul 12 2001 08:36:09:757AM | Bill Rowan | ENGINEERING SETUP FOR 1010712: ECDC in D2 overnight stopping by 7:00 am. RUN BEGINS AT 9:00 AND ENDS AT 5:00 Power systems the same as for shot 1010711009 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 6 psi D2 Hybrid DISABLED (PG2) fill C-side with 30 psi D2 Hybrid enabled (PG3) fill J-Bottom with 6 psi He Hybrid DISABLED(PG5) Enable the following gate valves: ECE, DNB, VUV RF STATUS: XMTR 1 AND 2, RUN-ON STARTED AT 8:00 AM XMTR 3 AND 4, RUN-ON STARTED AT 7:00 AM RUN PLAN: Recovery from vacuum vent to Helium, determining and reducing H/D ratio, and determining RF matching coefficients for 70 MHz operation of J-Port antenna. We'll start with an 800 kA shot @ 5.3 T and n~1.e20, and take it from there. From Irby: Two problems this morning. TF breaker requires check because of an indication on the last shot yesterday. The TF crowbar problem that occured yesterday has not been resolved. | |
| Jul 12 2001 08:49:55:517AM | Bill Rowan | Started pcs Loaded the last shot from yesterday (1010711009) to use its starup Imported segment 2 from shot 1010703003 Load/Clean Completed cold start 12-JUL-2001 08:44:12.42 END COLD *************** END COLDSTART ****************** Awaiting start of run. Will depend on progress of testing/repair | |
| Jul 12 2001 11:16:07:307AM | 1010712001 | Bill Rowan | 001. Engineering test shot. Testing instrumentation. |
| Jul 12 2001 11:36:32:147AM | 1010712002 | Bill Rowan | 002. Engineering test shot. Testing instrumentstion. |
| Jul 12 2001 02:22:55:933PM | 1010712003 | Bill Rowan | 003. Ingineering test shot. |
| Jul 12 2001 02:36:48:830PM | 1010712004 | Bill Rowan | 004. Engineering test shot. |
| Jul 12 2001 02:43:42:933PM | 1010712004 | Bill Rowan | Before the next shot. 10 minutes of ECDC |
| Jul 12 2001 03:15:30:420PM | 1010712005 | Bill Rowan | 005. Dud. ECDC before the next shot Next shot: lowered BZ. IC_EF4U to -1280 from -1270 |
| Jul 12 2001 03:34:07:120PM | 1010712006 | Bill Rowan | 006. Dud ECDC before the next shot |
| Jul 12 2001 03:53:06:963PM | 1010712007 | Bill Rowan | 007. Plasma Next shot. No changes |
| Jul 12 2001 04:18:00:407PM | 1010712008 | Bill Rowan | 008. Plasma Next shot: no changes. Opening DNB GV on the next shot. DNB firing at 1.1s. |
| Jul 12 2001 04:48:03:500PM | 1010712009 | Bill Rowan | 009. Plasma. Disruption at 0.45 s Next shot. Reduced NL_04 demand from 0.7e+20 to 0.5e+20 at 0.18s Reduce the prefill by 1 ms from 22 ms to 21 ms |
| Jul 12 2001 05:04:18:603PM | 1010712010 | Bill Rowan | 010. Plasma. |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 11:13:00:537AM | Test | Ok | Cycle shot |
| 2 | 11:34:20:037AM | Test | Ok | No Power test shot |
| 3 | 02:20:34:760PM | Test | Ok | TF 50 ka Test |
| 4 | 02:35:00:343PM | Test | Ok | 150 KA TF test Shot |
| 5 | 03:00:05:053PM | Plasma | Ok | |
| 6 | 03:22:16:773PM | Plasma | Ok | |
| 7 | 03:45:11:483PM | Plasma | Ok | |
| 8 | 04:08:48:110PM | Plasma | Ok | |
| 9 | 04:32:54:713PM | Plasma | Ok | |
| 10 | 04:58:53:517PM | Plasma | Ok | |