| Miniproposals | ||||||||||||
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| Operators | |
| Session leader(s): | Rejean Boivin,Steve Wukitch |
| Physics operator(s): | Bill Rowan |
| Engineering operator(s): | Gary Dekow,Bill Parkin |
| Engineering Operator Run Comment |
| Plasma Conditioning/MP215 JPort Rf Cond; SL:Wukitch/Boivin; PO: Rowan; E |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Entered: Jul 7 2004 03:49:26:303PM |
| Author: To Be Determined |
| Run Plan for Tuesday, June 5, 2001 Plasma Conditioning MP215 Jport RF Conditioning SL: Wukitch/Boivin PO: Rowan Engineering setup: ECDC in D2 overnight prior to run. 60C bake XMTR 1 through 4 should be in run-on by 8:00 AM. Run starts at 9:00AM Be prepared for ECDC in D2 between shots (using B-top valve). Power systems as on 1010604014. Gas setup: fill B-top with 6 psi of D2 Hybrid enabled (PG4) fill B-side lower with 1 psi of Ar Hybrid enabled (PG1) fill B-side upper with 6 psi of He Hybrid DISABLED (PG2) ** fill C-side with 30 psi of D2 Hybrid enabled (PG3) fill J-bottom with 6 psi of He Hybrid DISABLED (PG5) ** Enable the following gate valves: ECE, DNB. Do NOT enable VUV ! ____________________ Run plan: The run will be continuation of plasma conditioning and, if the plasmas are up to it, begin J-port conditioning, MP215. If it can be accommodated without problems to the other activities, it would be good to finish the shape development for MP287, ASDEX comparison, that we began on 1010530 and continued on shot 1010604013 1. Obtain DC2 and Stub calibration factors for J-port 2. Operate J-port with [0,pi,0,pi] phasing 3. Increase power and pulse length 4. Maximize Joules through D, E, and J-port ---- Prior to run modified RF turn on according to late request by Boivin XMTR 1 and 2 run-on by 8:00 XMTR 3 and 4 run-on by 7:00 (for vacuum conditioning) ----- ECDC off at 7am. ----- Bake went as requested ----- Willy Burke has requested a no-power test shot with just the J-bottom valve enabled after ECDC to determine whether valve is working. Will try to do this on the first shot. ----- Appears that Steve completed the development of the Asdex comparison. Will await confirmation from Amanda, but will start with one of the development shots. ----- Gary Dekow is the engineering operator ------------------------------------------------------------------------------- 001-004 no plasmas 005 demand: Ip~0.8 MA, nl04~1x1020 D: 0.4 MW [.8,1.4] sec E: 0.4 MW [.8,1.4] result: plasma D: 0.4 MW E: 0.4 MW need to retune D and E a bit 006 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] result: plasma Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW E: 0.6 MW density evolves during RF pulse 007 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] result: plasma Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW E: 0.6 MW density evolves during RF pulse 008 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.25 MW modulation J4: 0.25 MW modulation result: plasma D: 0.6 MW E: 0.6 MW J3: 0.25 MW modulation with lots of faults J4: 0.25 MW modulation with lots of faults J4 appears to have problems coupling power to the plasma - very low circulating power CAMAC error - do not use for tuning! Note: Feedback integrator time constant was changed to 0.5 msec from 1 msec to avoid multipactoring on #3 and #4 009 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.25 MW modulation J4: 0.25 MW modulation result: plasma D: 0.6 MW E: 0.6 MW J3: 0.25 MW modulation with lots of faults J4: 0.25 MW modulation with lots of faults 010 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.4 MW [.8,1.4] sec E: 0.4 MW [.8,1.4] result: plasma D: 0.4 MW E: 0.4 MW 011 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.3 MW modulation J4: 0.3 MW modulation result: plasma D: 0.6 MW E: 0.6 MW J3: 0.3 MW modulation with lots of faults J4: 0.3 MW modulation with lots of faults 012 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.3 MW [.5,.8] J4: 0.3 MW [.5,.8] result: plasma D: 0.6 MW E: 0.6 MW J3: 0.3 MW with faults J4: 0.3 MW with faults J4 ran without J3 as a result of HV ready protection: - J3 driver screen voltage dropped and the HV ready bit goes low -> the system is set to manuel, ie BIRA waveform is blocked but the gate remains high. Hence, J4 can operate without J3. 013 no power shot 014 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.3 MW [.5,.8] J4: 0.3 MW [.5,.8] result: plasma D: 0.6 MW E: 0.6 MW J3: 0.3 MW with faults J4: 0.3 MW with faults J4 ran without J3 as a result of HV ready protection: - J3 driver screen voltage dropped and the HV ready bit goes low -> the system is set to manuel, ie BIRA waveform is blocked but the gate remains high. Hence, J4 can operate without J3. FMIT #3 driver screen supply step start relay reseated after voltage noted to be 700V. Reads 1030V. after reseating. 015 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.3 MW [.5,.8] -> dummy load J4: 0.3 MW [.5,.8] result: plasma D: 0.6 MW E: 0.6 MW J3: 0.3 MW with Drvier screen voltage went low again J4: 0.3 MW one fault J_vprobes_light.dat shows that the induced voltage from D and E is causing multipactoring in the J-port transmission lines. 016 demand: Ip~0.8 MA, nl04~.5x1020 D: 0.6 MW [.8,1.4] sec E: 0.6 MW [.8,1.4] J3: 0.3 MW [.5,.8] -> dummy load J4: 0. MW [.5,.8] result: plasma D: 0.6 MW E: 0.6 MW J3: 0.3 MW with Driver screen voltage went low again J4: 0. MW Before the shot: FMIT #3 driver screen supply step start relay reseated after voltage noted to be 700V. Reads 1030V. after reseating. After the shot: Tested FMIT#3 into dummy load and the driver screen supply went low again. We jumpered the relay out and the voltage went to proper voltage. We need to either repair or replace this circuit Summary The calibration factors were obtained for J-port and J-port was able to operate with [0,pi,pi,0] phasing. The antenna injected 600 kW for ~50 msec and were limited by FMIT#3 control problem. The optical monitoring of J-port coax detected signal when D and E-port were active. Comparing with the voltage data, the induced voltage from D and E-port appears to be go low when light signal is detected and high when no light is observed. This suggests that the induced voltage is sufficient to initiate multipactoring. The induced voltage from D and E-port antennas will decrease as the H fraction decreases and absorption improves. |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:13:147PM |
| Author: To Be Determined |
| PhysOp Summary for Tuesday, June 5, 2001 SL: Wukitch/Boivin PO: Rowan EO: Dekow, Parkin Engineering setup _________________ ECDC in D2 overnight prior to run. 60C bake RF Setup ________ XMTR 1 and 2 run-on by 8:00 XMTR 3 and 4 run-on by 7:00 (for vacuum conditioning) Run starts at 9:00AM Be prepared for ECDC in D2 between shots (using B-top valve). Power systems as on 1010604014. Gas setup: fill B-top with 6 psi of D2 Hybrid enabled (PG4) fill B-side lower with 1 psi of Ar Hybrid enabled (PG1) fill B-side upper with 6 psi of He Hybrid DISABLED (PG2) fill C-side with 30 psi of D2 Hybrid enabled (PG3) fill J-bottom with 6 psi of He Hybrid DISABLED (PG5) Enable the following gate valves: ECE, DNB. Do NOT enable VUV ! Run plan ________ Plasma Conditioning MP215 Jport RF Conditioning The run will be continuation of plasma conditioning and, if the plasmas are up to it, begin J-port conditioning, MP215. If it can be accommodated without problems to the other activities, it would be good to finish the shape development for MP287, ASDEX comparison, that we began on 1010530 and continued on shot 1010604013 Results _______ Preparation for run ECDC compeleted as requested and was turned off at 7am. Bake completed as requested Loaded shot 1010604015. RF selected this shot for their starting point. This was the next to last shot in the ASDEX shape development. The last shot in that series, 1010604016, would have been a better starting point with regard to shate development. Enable VUV gate valve with Jim Terry's assurance that it was ready to go. J-port gas valve test Willy Burke requested a no-power test shot with just the J-bottom valve enabled to determine whether valve is working. Used the first two shots for this. Shot 001: The valve was pulsed for approximately 40 ms at 80 V. The pulse was started in segment 1 at approximately 0.06 s and stopped by the change to segment 2 at 0.1 s. There was no evidence that the valve opened. Shot 002: The valve was pulsed on at approximately 0 s and left on for approximately 100 ms. There was evidence that the valve opened slightly. Pressure rose from to approximately 1e-06 T. Fizzles and duds The first plasma attempt was a fizzle. The second was a dud. Third plasma attempt (006) worked. Between 005 (dud) and 006 (plasma), BR was made more positive as noted in the PhysOp log. H/D ratio From shot 006 through 008, the H/D ratio increased from 1.2 to 1.8. After shot 008 through 013, ECDC was run between shots for 10 minutes. The H/D ratio dropped to approximately 1 and stayed there. ECDC was not run after shots 014 through 016 and the H/D ratio increased to 1.7. Asdex shape development. This reproduced the best shot from the previous day which was 1010604016. The best shot today was the last, 1010605016. The constraints were to match the Asdex shape (by shifting and scaling the Asdex shape) while maintaining the outer gap at an optimum value for RF. The inner gap must be increased. The lower x-point must be moved further outboard. RF Conditioning See SL report Engineering problems The run ended when the controls for the TMX contactor failed. We were within one shot of stopping for RF repairs. Computer problems There was a hang on shot 013 which prevented the shot from working. Scorecard Used for engineering tests 2 Lost by computer problems 1 Fizzles 1 Duds 1 Plasmas 11 _____________________________ Total 16 |
| Session Leader Comments |
| Physics Operator Comments | |||
| Jun 5 2001 08:11:54:090AM | Bill Rowan | Run Plan for Tuesday, June 5, 2001 Plasma Conditioning MP215 Jport RF Conditioning SL: Wukitch/Boivin PO: Rowan Engineering setup: ECDC in D2 overnight prior to run. 60C bake XMTR 1 through 4 should be in run-on by 8:00 AM. Run starts at 9:00AM Be prepared for ECDC in D2 between shots (using B-top valve). Power systems as on 1010604014. Gas setup: fill B-top with 6 psi of D2 Hybrid enabled (PG4) fill B-side lower with 1 psi of Ar Hybrid enabled (PG1) fill B-side upper with 6 psi of He Hybrid DISABLED (PG2) ** fill C-side with 30 psi of D2 Hybrid enabled (PG3) fill J-bottom with 6 psi of He Hybrid DISABLED (PG5) ** Enable the following gate valves: ECE, DNB. Do NOT enable VUV ! ____________________ Run plan: The run will be continuation of plasma conditioning and, if the plasmas are up to it, begin J-port conditioning, MP215. If it can be accommodated without problems to the other activities, it would be good to finish the shape development for MP287, ASDEX comparison, that we began on 1010530 and continued on shot 1010604013 ---- Prior to run modified RF turn on according to late request by Boivin XMTR 1 and 2 run-on by 8:00 XMTR 3 and 4 run-on by 7:00 (for vacuum conditioning) ----- ECDC off at 7am. ----- Bake went as requested ----- Willy Burke has requested a no-power test shot with just the J-bottom valve enabled after ECDC to determine whether valve is working. Will try to do this on the first shot. ----- Appears that Steve completed the development of the Asdex comparison. Will await confirmation from Amanda, but will start with one of the development shots. ----- Gary Dekow is the engineering operator | |
| Jun 5 2001 08:34:17:467AM | Bill Rowan | ------ Started pcs and loaded shot 1010604015. RF agrees to this shot and this is the result of ASDEX shape development on 6/4 ------ Did coldstart 5-JUN-2001 08:27:35.28 TYPE *************** END COLDSTART | |
| Jun 5 2001 09:12:16:027AM | Bill Rowan | Shot 001. The first shot will be a n-power test shot . PF5 set for a 100 ms pulse ending at 0.16 Fizzle detector set at 0.18 All valves disabled except for J-bottom. | |
| Jun 5 2001 09:12:33:307AM | Bill Rowan | No apparent effect. Will try once more with a longer pulse. | |
| Jun 5 2001 09:21:00:710AM | Bill Rowan | Shot 002. This is another no power test. Increase the pulse to 100 ms. Start at t=0 so that get a full 100 ms before the segment change occurs. The valve opened but small pressure change. Moving on to the run. Will do 10 minutes of ECDC before the next shot at the suggestion of the RF-folk. They have been doing vacuum conditioning. | |
| Jun 5 2001 09:22:40:370AM | 1010605001 | Bill Rowan | Shot 001. The first shot will be a n-power test shot . PF5 set for a 100 ms pulse ending at 0.16 Fizzle detector set at 0.18 All valves disabled except for J-bottom. No apparent effect. Will try once more with a longer pulse. |
| Jun 5 2001 09:21:42:493AM | 1010605002 | Bill Rowan | Shot 002. This is another no power test. Increase the pulse to 100 ms. Start at t=0 so that get a full 100 ms before the segment change occurs. The valve opened but small pressure change. Moving on to the run. Will do 10 minutes of ECDC before the next shot at the suggestion of the RF-folk. They have been doing vacuum conditioning. |
| Jun 5 2001 09:44:52:687AM | 1010605003 | Bill Rowan | Shot 003. Removed the pulse on PG5, and did a load/clean. This should be like 1010604015. Enable VUV gate valve at request of Jim Terry and with his assurance that the pressures are okay. Fizzle detector back to 0.08 Fizzle |
| Jun 5 2001 09:55:47:093AM | 1010605003 | Bill Rowan | ECDC for 10 minutes before the next shot. Reduce the prefill by 1 ms |
| Jun 5 2001 10:18:51:817AM | 1010605004 | Bill Rowan | Shot 004 Dud For the next shot. Changed BR by 0.5 mT. More positive |
| Jun 5 2001 10:36:28:623AM | 1010605005 | Bill Rowan | Shot 005 Plasma. Note: no ECDC before this shot and BR was changed. Prefill pressure essentially the same as the previous shot at 0.095 mT BR did change as expected. Before the next shot -- cell access, power room access, lab access, No changes before the next shot. |
| Jun 5 2001 10:59:27:880AM | 1010605005 | Bill Rowan | Shot 005 Plasma. Note: no ECDC before this shot and BR was changed. Prefill pressure essentially the same as the previous shot at 0.095 mT BR did change as expected. Before the next shot -- cell access, power room access, lab access, No changes before the next shot. |
| Jun 5 2001 11:00:26:710AM | 1010605005 | Bill Rowan | Shot 006. No changes from 005. Plasma. H/D=1.2. Increase of 0.4 from the previous shot. No change for the next shot |
| Jun 5 2001 11:16:32:077AM | 1010605005 | Bill Rowan | Shot 007. Plasma H/D continuing to increase. = 1.4 No change for next shot. |
| Jun 5 2001 11:30:38:880AM | 1010605008 | Bill Rowan | Shot 008. Plasma H/D=1.8 ECDC before the next shot. |
| Jun 5 2001 11:56:43:090AM | 1010605009 | Bill Rowan | Shot 009 Plasma H/D=1.1 ECDC before the next shot. |
| Jun 5 2001 12:23:17:817PM | 1010605010 | Bill Rowan | Shot 010. Plasma H/D=0.96 ECDC before the next shot |
| Jun 5 2001 12:45:17:257PM | 1010605011 | Bill Rowan | Shot 011. Plasma H/D=0.94 ECDC before the next shot |
| Jun 5 2001 01:12:12:533PM | 1010605012 | Bill Rowan | Shot 012 Plasma H/D=1 ECDC before the next shot |
| Jun 5 2001 01:36:29:773PM | 1010605013 | Bill Rowan | Shot 013. No power shot. Computer hang. Could not clear it. |
| Jun 5 2001 02:08:39:103PM | 1010605014 | Bill Rowan | Shot 014 Plasma H/D=1.0 |
| Jun 5 2001 02:26:29:350PM | 1010605015 | Bill Rowan | For the next shot, change the inner gap to improve the match with the ASDEX shape. Clearin: 0.005->0.015; Rcur: 0.661->0.666. Note the changes made between shots 1010604015 and 016. |
| Jun 5 2001 03:01:03:263PM | 1010605016 | Bill Rowan | Shot 016. Plasma H/D=1.65 |
| Jun 5 2001 03:10:18:807PM | 1010605016 | Bill Rowan | For the next shot, change the inner gap again. Clearin: 0.015->0.019; Rcur: 0.666->0.668 |
| Jun 5 2001 04:21:33:167PM | 1010605016 | Bill Rowan | Did not take shot 017. Engineers having problems with control of contactor for the TMX supply. EF2 Upper |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 09:04:48:827AM | Test | Bad | No Gas |
| 2 | 09:14:52:903AM | Test | Bad | Very Little Gas |
| 3 | 09:37:52:313AM | Plasma | Ok | |
| 4 | 10:04:13:933AM | Plasma | Ok | |
| 5 | 10:22:50:167AM | Plasma | Ok | |
| 6 | 10:46:32:170AM | Plasma | Ok | |
| 7 | 11:02:44:557AM | Plasma | Ok | |
| 8 | 11:21:39:523AM | Plasma | Ok | |
| 9 | 11:47:19:357AM | Plasma | Ok | |
| 10 | 12:12:05:347PM | Plasma | Ok | |
| 11 | 12:36:30:167PM | Plasma | Ok | |
| 12 | 01:00:20:390PM | Plasma | Ok | |
| 13 | 01:26:05:040PM | Plasma | Bad | SOFTWARE PROBLEMS |
| 14 | 01:59:13:433PM | Plasma | Ok | |
| 15 | 02:19:41:090PM | Plasma | Ok | |
| 16 | 02:51:41:593PM | Plasma | Ok | |