| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Rejean Boivin |
| Physics operator(s): | Steve Wolfe,Ian Hutchinson |
| Engineering operator(s): | Gary Dekow,Bill Parkin,Bill Cochran |
| Engineering Operator Run Comment |
| Engineering Tests/MP268 SL:Boivin PO:Wolfe,Hutch EO:Cochran,Dekow,Parkin |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:12:740PM |
| Author: To Be Determined |
| Physop Summary 1001201 Restart with Normal Field Direction First 15 shots were power supply and coil connection tests. Shot 16 plasma, under nl_zmeter control. Looks fine. Shut down to work on the RF. |
| Session Leader Comments |
| Physics Operator Comments | |||
| Nov 30 2000 02:05:44:810PM | Steve Wolfe | Setting up for tomorrow's run. Load from 1001020005; acknowledge CONFIG warning- no action required. Reduce current from 1.1MA to 0.8MA (seg2) reduce IC_ef4u from 3000 to 2000 (seg2). refuce tf from -153000 to -150000 LOAD/CLEAN into model Should be all set; do a save_as cmod$test_shots:[hybrid.pcs] 1001201000 as well, just to be safe. | |
| Dec 1 2000 07:44:13:077AM | Steve Wolfe | Bring up PCS and confirm model is as loaded yesterday Modify seg 2 title, set pg4 pulse in seg1 to 20msec Load/clean coldstart at 07:43 - all matrices respond | |
| Dec 1 2000 07:50:23:090AM | Steve Wolfe | Run Plan for Friday, Dec 1, 2000 Engineering tests Plasma Startup MP#268 ICRF SL: Boivin PO: Wolfe,Hutch Engineering Setup ------------------ Conditioning: overnight ECDC in D2, ending 2 hours before start of run RF Setup: --------- MTR 1 and 2 should be made ready, but NOT in run-on. XMTR 4 should be warmed up and in run-on by approx 7:30. If XMTR 3 is fully assembled, warm up transmitter in local mode and going to dummy load. Steps remaining: XMTR 3, tune to 78 MHz (local mode, dummy load) pulse in dummy load, computer control, higher power/longer pulse vacuum tune, and fire into vacuum, check phase and instrumentation couple to plasma, together with #4 For Engineering tests: ---------------------- Gas setup: fill B-top with 6 psi of D2 Hybrid **ENABLED** fill B-side lower with 1 psi of Ar Hybrid DISABLED fill B-side upper with 35 psi of D2 Hybrid DISABLED, for ECDC fill C-side with 30 psi of D2 Hybrid DISABLED leave J-bot as is The following gate valves should be enabled: DNB For Plasma Startup and MP268: ----------------------------- Power systems as on 1001020005 Note: EF4 current limit should be [-10,+4]ka EFC start time should be -.035sec Gas system: fill B-top with 6 psi of D2 Hybrid ENABLED fill B-side lower with 1 psi of Ar Hybrid DISABLED fill B-side upper with 35 psi of D2 Hybrid DISABLED, for ECDC fill C-side with 30 psi of D2 Hybrid ENABLED leave J-bot as is Gate valves: ECE, VUV, Beast, DNB (if requested) Plan -------------------- We will start with standard post-bus reversal engineering PLC tests of each coil system. During these tests, the DNB will be opening and firing into the machine, and the pulse gas system should be under Hybrid control, as indicated. Once engineering tests are complete, we will move on to plasma startup shots with normal field direction. PCS will be loaded from 1001020005, but with current reduced to 0.8MA. DNB can continue to pulse if they want, assuming they aren't perturning the breakdown pressure too much. Assuming we get that far, the RF shots will be tests of J-port performance as a four-strap. The target shot will be based on 1001020005 but with reduced current. When we ran in October, we were having problems with the upper corners of the antenna lighting up and generating injections. After verifying that the transmitters are working and the control/fault circuits are functional, the first thing to see is if this phenomenon reappears as the power is increased. Fire J-port into plasma, nominal density, preferably lower current (0.8 MA) to start with. Shot 100102005 is taken as the starting point, except for current. Short pulse, check phase. Increase power gradually. When approx max power achieved, reduce power and increase pulse length. At higher power we may want to go to upper null to stay in L-mode. Also: Exercise D and E to make sure all is normal. Have those available for further testing as needed. We will continue on that plan on monday, if things are progressing reasonably. | |
| Dec 1 2000 08:55:07:983AM | 1001201001 | Steve Wolfe | shot#1: Data cyce test only b-top enabled. DNB will fire with gate valve closed. got .053mTorr - ok. |
| Dec 1 2000 10:16:59:793AM | 1001201001 | Steve Wolfe | Before shot#2: Long delay to swap out the PF breaker. |
| Dec 1 2000 10:51:56:187AM | 1001201002 | Steve Wolfe | shot#2: oh2u test. Looks ok. |
| Dec 1 2000 02:04:20:043PM | 1001201016 | Ian Hutchinson | Restart with Normal Field Direction Shots prior to 16 are all engineering tests of the different coils to ensure that the bus reconnection is correct. The interferometer was playing up. Got wire 14 from 1000913014 nl_zmeter into segment 2 wire 14. Load. Plasma. Good shot with fairly low density. Shut down the run to work on the RF. |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 08:50:56:357AM | Test | Ok | |
| 2 | 10:49:09:937AM | Test | Ok | OH2U Froward Bridge Test |
| 3 | 10:59:39:607AM | Test | Ok | OH2L Polarity Test |
| 4 | 11:10:37:123AM | Test | Ok | OH1 Polarity Check |
| 5 | 11:24:41:810AM | Test | Ok | EF1U Polarity Test |
| 6 | 11:34:26:263AM | Test | Ok | EF1L Polarity Test |
| 7 | 11:46:08:077AM | Test | Ok | EF4 Polarity Test |
| 8 | 11:56:57:547AM | Test | Ok | EF2U Polarity Test |
| 9 | 12:07:05:827PM | Test | Ok | EF2L Polarity Test |
| 10 | 12:17:03:623PM | Test | Ok | EFC Polarity Test |
| 11 | 12:26:10:247PM | Test | Bad | EF3 test but not enabled |
| 12 | 12:35:45:797PM | Test | Ok | EF3 Polarity Test |
| 13 | 12:45:50:373PM | Test | Ok | TF 50 KA Test |
| 14 | 12:58:55:077PM | Test | Ok | TF 100KA Test |
| 15 | 01:11:19:890PM | Test | Ok | TF 150 KA Test |
| 16 | 01:55:08:983PM | Plasma | Ok | |