| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Steve Wukitch |
| Physics operator(s): | John Goetz |
| Engineering operator(s): | Bill Cochran,Frank Silva |
| Engineering Operator Run Comment |
| MP #214 RF Conditioning/Goetz, Silva |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:08:193PM |
| Author: To Be Determined |
| Physics operator summary for 990813 EO: Silva, Cochran PO: Goetz SL: Wukitch Run 990813 was in support of MP 214 -- RF conditioning. The tube that was in transmitter #2 was moved to transmitter #3 and this run was to be used to check out the new configuration of tubes in transmitters. To this end, the run produced too few plasmas to investigate whether or not the tube change was successful. The run began with a fizzle due to a very positive radial field. Then the run was plagued by fizzles that were 'bouncers'. This condition was fought by raising the prefill puff. However, this was not successful as evidenced by the fizzle on the last shot. Also, there was about 15A difference in the EF4 current between shots 11 and 12 for the same programming which may have caused the fizzle. Engineering, computing, and diagnostics today: The EF1 supply looked good today - an inspection before the run yielded no obvious problems. Once again, looking at the problem made it disappear. Scorecard: 12 shots = 3 plasmas + 4 fizzles + 0 duds + 5 tests Shot summary for Run 990813: Load 990806009 with no changes coldstart hybrid - everything loaded; all matrices respond Shot change result ____ _____ ______ 1-4 test shots of CAMAC 5 PLC test of EF1 test o.k. 6 see above fizzle; Br=+.002 7 BR_0=.0032 fizzle; Br=-.001; a bouncer 8 PG4=20ms; BR_0=.0035 plasma; b.d. @ .005; good current rise; ran to 1.83s 9 no changes plasma; b.d. @ .0055; good current rise; 10 no changes fizzle; b.d. @ .0055; a bouncer 11 PG4=22ms plasma; b.d. @ .0055; good current rise; 12 no changes fizzle; b.d. @ .006; not enough Bz |
| Session Leader Comments |
| Physics Operator Comments | |||
| Aug 13 1999 04:10:34:513PM | John Goetz | Engineering setup for 9908013 Two hours of ECDC in D2 prior to run. Setup power supplies from shot 990806009 Gas setup - fill B-top with 6 psi of D2 Hybrid enabled fill B-side lower with 1 psi of Ar Hybrid enabled fill B-side upper with 6 psi of H2 Hybrid disabled fill C-side with 30 psi of D2 Hybrid enabled leave J-bottom as is Hybrid disabled | |
| Aug 13 1999 04:11:27:873PM | John Goetz | Physics setup for 990813: MP 214 -- RF conditioning Start by loading 990806009 and try to get gobs of power from J3 and J4 simultaneously. This run will find out if the tube change in transmitter #3 is acceptable. | |
| Aug 13 1999 04:46:37:607PM | 990813005 | John Goetz | Shots 001 - 004 were CAMAC tests Test of EF1 under PLC control looks good |
| Aug 13 1999 05:37:23:920PM | 990813006 | John Goetz | Shot 990813006: load 990806009 J3 into dummy load Results: Fizzle very weak - no burnout radial field is +.002T |
| Aug 13 1999 05:54:32:700PM | 990813007 | John Goetz | Shot 990813007: BR_0 offset = .0032 (was .006) J3 into dummy load Results: Fizzle - breakdown @ .005s a bouncer radial field is -.001T |
| Aug 13 1999 06:10:21:530PM | 990813008 | John Goetz | Shot 990813008: BR_0 offset = .0035 raise PG4 to 20ms Results: plasma breakdown @ .005s, good current rise ran to 1.83s a few small injections |
| Aug 13 1999 06:29:50:530PM | 990813009 | John Goetz | Shot 990813009: no changes fire #3 and #4 into plasma Results: plasma breakdown @ .0055s, good current rise ran to 1.85s only #4 ran |
| Aug 13 1999 06:48:09:200PM | 990813010 | John Goetz | Shot 990813010: no changes fire #3 and #4 into plasma Results: fizzle breakdown @ .0055s; null looks o.k. a bouncer |
| Aug 13 1999 07:03:08:700PM | 990813011 | John Goetz | Shot 990813011: PG4 = 22ms fire #3 and #4 into plasma Results: plasma breakdown @ .0055s; good current rise ran to 1.85s only #4 ran |
| Aug 13 1999 07:19:40:293PM | 990813012 | John Goetz | Shot 990813012: no changes Results: fizzle breakdown @ .006s; a bouncer not enough Bz; the EF4 got to a more negative current on this shot compared to 011 |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 09:18:45:263AM | Test | Ok | test |
| 2 | 09:24:35:390AM | Test | Ok | (null) |
| 3 | 09:32:36:780AM | Test | Ok | (null) |
| 4 | 09:40:50:437AM | Test | Ok | (null) |
| 5 | 04:44:51:793PM | Test | Ok | ef1l only ok |
| 6 | 05:32:05:420PM | Plasma | Ok | fizzle, ef1lower okay |
| 7 | 05:47:50:233PM | Plasma | Ok | fizzle |
| 8 | 06:03:29:437PM | Plasma | Ok | no faults/plasma |
| 9 | 06:23:51:840PM | Plasma | Ok | no faults |
| 10 | 06:43:03:670PM | Plasma | Ok | no faults |
| 11 | 06:56:18:670PM | Plasma | Ok | no faults |
| 12 | 07:13:46:590PM | Plasma | Ok | no faults |