| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Frank Silva |
| Physics operator(s): | Ian Hutchinson |
| Engineering operator(s): | Frank Silva |
| Engineering Operator Run Comment |
| rev buss test Ian breakdown |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:36:54:003PM |
| Author: To Be Determined |
| Physop_950424 Summary Restart with Negative Toroidal Field ____________________________________ PO: Hutch SL: Silva Overview ________ Got a plasma the first shot with a disruption. Then 1 fizzle but then 3 plasmas in a row. Early current ramp not fully tweaked. Recommend raising the RCUR D to maximum in future. Scorecard _________ Shot,Duration(s),Ipmax(MA) Shot,Duration(s),Ipmax 1 0.000 0.016 2 0.000 0.010 3 0.926 0.872 4 0.000 0.024 5 1.461 0.841 6 1.446 0.843 7 1.469 0.838 Finished summary for 950424 Total of 7 shots. 7 shots. 4 plasmas. 1 fizzles. 2 duds. Details _______ Load segment 1 from 950331038 Load segment 2 from 950317024 Tweaked a few things. p_0=2e-5. 1 PS test 2 PS test 3 Pla Disrupt at .92s. Density pushed a bit too hard. Coil currents very close to previously loaded shot. Back Nel04 to 1e20. No changes to segment 1. 4 Fiz Flux plots look better if anything than the previous shot. But pretty similar. OH1-V to 100V from 60V at 5ms, to slow the Bz rise in 5-10ms. 5 Pla Still a serious hesitation. Adjusted the clearin ramp to be much more gentle at ramp down. OH1-V to 120V at 5ms. 6 Pla Rampdown is fixed although a slight fin. OH1-V to 90v at 10ms from 105V. 7 Pla Looks fime but the current hesitation is not fixed. |
| Session Leader Comments |
| Physics Operator Comments |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 02:19:01:710PM | Test | Ok | oh2u, all tmx ok test |
| 2 | 02:49:14:340PM | Test | Ok | full test ok |
| 3 | 03:12:20:980PM | Plasma | Ok | first shot/vac.brk and rev fld/plasma |
| 4 | 03:27:18:880PM | Plasma | Ok | no faults |
| 5 | 03:39:16:260PM | Plasma | Ok | no faults |
| 6 | 03:51:04:980PM | Plasma | Ok | no faults |
| 7 | 04:02:18:100PM | Plasma | Ok | no faults |