| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | John Rice,Jim Terry |
| Physics operator(s): | Robert Granetz |
| Engineering operator(s): | Unknown |
| Engineering Operator Run Comment |
| mp211 |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Entered: Jul 7 2004 03:49:18:960PM |
| Author: To Be Determined |
| This run was a continuation of the 990205 run in which we were doing a sensitivity calibration of the McPherson spectrometer and a resolution and view calibration of the HIREX spectrometers. See the run summary (cmod$runs:run_summary_990205.txt) and the mini-proposal #211 "Constant Shots to Calibrate the McPherson and HIREX Spectrometers" for background and details. For 990209 we hoped to look the following pairs of lines with the McPherson and the Chromex 1) He+ 253 A (Ly_beta) & 1640 A (Balmer_alpha) 2) He+ 1216 A (Balmer_beta) & 4686 A (Paschen_alpha) 3) He+ 243 A (Ly_gamma) & 4686 A (Paschen_alpha) 4) He+ 237 A (Ly_delta) & 1085 A (5 - 2) 5) CIV 312 A & 5801+5812 A 6) D_0 1025 A (Ly_beta) & 6563 A (D_alpha) 7) D_0 972 A (Ly_gamma) & 4861 A (D_beta) We were successful in getting shots for which line pairs 1, 2, 3, and 6 were measured. We did not get enough good shots to get the ratios for 4, 5 or 7. We loaded 990205027, with same Ar puff, but we increased the plemun pressure for He from 10 to 20 psi. The He puff started 0.65 s. This puff increased the density from NL_04 of 1e20 to about 1.4e20 m-2. Unfortunately, the run was plagued by blown fuses, a long delay due to a H_2/D_2 switchover, and disruptions. We did not complete the calibrations. About 5 more shots are needed. A shot-by-shot account follows: 002 disrupted at 0.403 s 003 disrupted at 0.403 s 004 disrupted at 0.412 s 007 OK shot, but no Ar or He puffed 008 Good shot - disrupted at after the RF came on at 1 s (1640 A/4686 A) 010 Good shot - disrupted at after the RF came on at 1 s (256 A/4686 A) 011 Good shot - No RF (256 A/4686 A - divertor) 012 Good shot - No RF (1640 A/4686 A - divertor) 013 Good shot - No RF (1216 A/4686 A - divertor) 014 Good shot - No RF (1216 A/4686 A - divertor) 015 Good shot - No RF (1216 A/4686 A - midplane) 016 Good shot - RF@1.0s (1216 A/4686 A - midplane) 017 disrupted at 0.472 s 018 Good shot - RF@1.0s (1025 A/4050 A) 019 Good shot - RF@1.0s (1025 A/4050 A) |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:00:020PM |
| Author: To Be Determined |
| Physics operator summary for run 990209. MP 211 -- Constant shots to calibrate McPherson and HIREX Spectrometers SL: J. Terry and J. Rice PO: R. Granetz (asst: J. Irby) The goal for today: Finish the calibration of the McPherson and HIREX. Summary: The goal was not accomplished because we had fewer plasmas than needed. We had a host of problems today, although breakdown and current rise continued to be very reliable. The first 3 plasmas disrupted shortly after diverting and shortly after argon puffing. This may have been an aftereffect of this past weekend's vent/opening (hydrogen, argon, and helium were all used for various backfills). A TF crowbar caused a delay of 2.5 hours to replace fuses and SCR's and to test out the repairs. Also during the morning it was noticed that the hydrogen fraction was incredibly high, and increasing. Eventually this was traced to an incorrect labeling of the gas bottles in TORVAC, which happened early this morning. H/D ratios had climbed to 5 by the time this was figured out and remedied after shot 11. From then on, everything went fine, except that the cooling was taking 20 minutes between shots. This improved late in the run. Scorecard: 15 plasmas 0 fizzles 0 duds (0 due to power supply faults) 4 tests ---------- 19 total ------------------------------------------------------------------------------ Engineering Setup for Tuesday, 990209: Load from 990205027 Overnight ECDC in D2 TF under hybrid control 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 20 psi of He4 Hybrid enabled fill C-side with 30 psi of D2 Hybrid enabled The following gate valves should be enabled, assuming no vacuum problems: ECE, VUV ------------------------------------------------------------------------------- Run Plan for 990209: ------------------------------------------------------------------------------- Start with shot 990205027, with same Ar and He valve programming, but with twice the pressure in the He plenum. Once we agree that this is appropriate for the HIREX, the McPherson, and the Chromex spectrometers, we will keep the shot essentially constant for the rest of the run. ------------------------------------------------------------------------------ Note: yesterday (Monday) there was a sudden accidental vent to 3 torr of helium, with some unpurged gases also mixed in. Note: over the weekend the machine was backfilled with H2 and then with argon to atmospheric pressure, and at least one flange was removed to allow installation of the 2pi bolos and to try a boroscope check of the main bolo aperture. Hybrid coldstart done; no errors found ($set default cmod$models:[hybrid.tcl] $@hybinit_dispatch $@show_bitbus_log Use editor search to verify no occurrences of "error" nor "not respond") Reload 990205027 Confirm that RF feedback on RCUR is turned off (RF_LOAD_E = 0.0) Shot 01 -- OH test. Good. Next shot: go for plasma Shot 02 -- Plasma. Disrupted at 0.4 s. 2pi bolo is now working, as is the XUV array. Next shot: no changes. Shot 03 -- Plasma. Disrupted at 0.4 s. Lots of dirt starting at 0.36 s (loop voltage rises, Ip turns over, nl_04 and 2pi rise. There were also some hard x-rays. Re-cool is taking 20 minutes. Next shot: no changes. Shot 04 -- Plasma. Again disrupted at 0.4 s, again plasma became resistive when the plasma diverts. TF crowbarred. Since there will be an extended break to change fuses and for re-cool, we will have a cell access now. Next shot: alternator test only Shot 05 -- Alternator test; to check some instrumentation. Looks good. Next shot: TF only test at 100 kA under PLC control. Shot 06 -- TF only test at 100 kA under PLC control. OK. Next shot: try once more with no argon or helium puffing. If it still disrupts at the same time, then I will switch to limited plasmas until the machine is cleaned up. Shot 07 -- Plasma. Good shot. No argon or helium puff. RF ramped to 1.8 MW after t=1.0 s. Next shot: enable a 20 ms argon puff (instead of 35 ms) at t=0.3 s, and an 0.25 s helium puff at t=0.65 s. Shot 08 -- Plasma. Disrupted at 1.04 s, just after start of RF. The RF caused this disruption. The extra helium (due to doubled pressure) increases the density 50%. Next shot: OH test. Shot 09 -- OH test. Good. Next shot: plasma; same as shot 08, but increase argon puff to 35 ms Shot 10 -- Plasma. Very similar to shot 08. Disrupted at 1.06 s. Looks like it's due to the RF again. H/D ratio goes up to 4 (not 0.4) ! Next shot: same, except no RF, and increase argon puff to 40 ms. Shot 11 -- Plasma. Good shot. No RF (on purpose). Seems the RF and the large helium puff aren't compatible. H/D up to 4.5 ! Next shot: same, except no RF. News flash: Tommy Toland just figured out why the hydrogen is so high. It turns out that due to an incorrect reconfiguration of TORVAC this morning, we've actually been fueling with hydrogen today, instead of deuterium !!! This is being remedied for the next shot. Shot 12 -- Plasma. Good shot. H/D ranges from 0.6 to 0.85. No RF (on purpose). Next shot: same, except lengthen CLEARIN integral gain by 0.15 s (to t=1.3 s). Shot 13 -- Plasma. Good shot. Rampdown was unchanged from preceding shot. H/D ranges from 0.4 to 0.6. Next shot: lengthen CLEARIN integral gain to t=1.75 s. Slow down CLEARIN rampdown, a la Goetz. Shot 14 -- Plasma. Good shot. Rampdown hardly extended at all. H/D ranges from 0.35 to 0.45. Next shot: repeat, no changes. Shot 15 -- Plasma. Good shot. Rampdown is getting 5-10 ms longer each shot. H/D ranges from 0.25 to 0.40. Next shot: turn on RF. Shot 16 -- Plasma. Good shot. Prf=1 MW. H/D=0.25-0.4. Next shot: no changes Shot 17 -- Plasma. Disrupted at t=0.47 s. Large amounts of moly. Next shot: repeat, no changes. Shot 18 -- Plasma. Good shot. Prf=2 MW. H/D=0.2-0.4. Next shot: repeat, no changes Shot 19 -- Plasma. Good shot. Prf=2.0 MW. H/D=0.2-0.4. End of run. |
| Session Leader Comments | |||
| Feb 9 1999 09:29:23:890AM | Jim Terry | This run is a continuation of the 990205 run in which we are doing a sensitivity calibration of the McPherson spectrometer and a resolution and view calibration of the HIREX spectrometers. See the mini-proposal #211 "Constant Shots to Calibrate the McPherson and HIREX Spectrometers" The lines we plan to look at with the McPherson and Chromex are He+ 253 A (Ly_beta) & 1640 A (Balmer_alpha) He+ 1216 A (Balmer_beta) & 4686 A (Paschen_alpha) He+ 243 A (Ly_gamma) & 4686 A (Paschen_alpha) He+ 237 A (Ly_delta) & 1085 A (5 - 2) CIV 312 A & 5801+5812 A - | |
| Feb 9 1999 09:31:12:200AM | 990209002 | Jim Terry | Not a good shot - disrupted at 0.403 s McP looking at 1640 A - Chromex at 4686 A. McP jack at 14.71. - - |
| Feb 9 1999 09:36:04:310AM | 990209003 | Jim Terry | Not a good shot - again disrupted at 0.403 s McP looking at 1640 A - Chromex at 4686 A. McP jack at 14.71. |
| Feb 9 1999 10:16:55:903AM | 990209004 | Jim Terry | Not a good shot - again disrupted at 0.412 s McP looking at 1640 A - Chromex at 4686 A. McP jack at 14.71. |
| Feb 9 1999 12:50:32:530PM | 990209007 | Jim Terry | Shot OK, but no Ar and no He. McP looking at 1640 A - use as background McP jack at 14.71. |
| Feb 9 1999 01:09:58:233PM | 990209008 | Jim Terry | Shot good - disrupted when RF came on. McP looking at 1640 A - Chromex at 4686 A McP jack at 14.71. |
| Feb 9 1999 01:48:36:000PM | 990209010 | Jim Terry | Shot good - disrupted when RF came on. McP looking at 256 and 243 A - Chromex at 4686 A McP jack at 14.71. |
| Feb 10 1999 11:31:53:233AM | 990209011 | Jim Terry | Shot good - no RF. McP looking at 256 and 243 A - Chromex at 4686 A McP jack at 14.71. |
| Feb 9 1999 02:54:03:293PM | 990209012 | Jim Terry | Shot good. McP looking at 1640 A - Chromex at 4686 A McP jack at 14.71. |
| Feb 9 1999 03:14:12:967PM | 990209013 | Jim Terry | Shot good. McP looking at 1216 A - Chromex at 4686 A McP jack at 14.71. |
| Feb 9 1999 03:36:45:233PM | 990209014 | Jim Terry | Shot good. McP looking at 1216 A - Chromex at 4686 A McP jack at 8.66. Not much change at the He puff at 1215 A. |
| Feb 9 1999 03:53:44:153PM | 990209015 | Jim Terry | Shot good. McP looking at 1216 A - Chromex at 4686 A McP jack at 10.15. Not much change at the He puff at 1215 A. |
| Feb 11 1999 02:40:00:857PM | 990209016 | Jim Terry | Shot good. McP looking at 1025 A - Chromex at 6563 A McP jack at 10.15. - |
| Feb 11 1999 02:36:44:340PM | 990209017 | Jim Terry | Disrupted at 0.472 s McP looking at 1025 A and 972 A - Chromex at 4050 A McP slits to 70 microns - McP jack at 14.72. |
| Feb 9 1999 04:55:32:670PM | 990209018 | Jim Terry | Good shot McP looking at 1025 A and 972 A - Chromex at 4050 A McP slits to 70 microns - McP jack at 14.72. |
| Feb 9 1999 05:01:11:840PM | 990209019 | Jim Terry | Good shot McP looking at 1025 A and 972 A - Chromex at 4050 A McP slits to 70 microns - McP jack at 14.72. |
| Physics Operator Comments | |||
| Feb 8 1999 03:39:25:903PM | Robert Granetz | Engineering Setup for Tuesday, 990209: Load from 990205027 Overnight ECDC in D2 TF under hybrid control 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 20 psi of He4 Hybrid enabled fill C-side with 30 psi of D2 Hybrid enabled The following gate valves should be enabled, assuming no vacuum problems: ECE, VUV | |
| Feb 8 1999 03:39:39:590PM | Robert Granetz | Run Plan for 990209: ------------------------------------------------------------------------------- Start with shot 990205027, with same Ar and He valve programming, but with twice the pressure in the He plenum. Once we agree that this is appropriate for the HIREX, the McPherson, and the Chromex spectrometers, we will keep the shot essentially constant for the rest of the run. | |
| Feb 9 1999 01:28:57:623PM | Robert Granetz | Note: yesterday (Monday) there was a sudden accidental vent to 3 torr of helium, with some unpurged gases also mixed in. Note: over the weekend the machine was backfilled with H2 and then with argon to atmospheric pressure, and at least one flange was removed to allow installation of the 2pi bolos and to try a boroscope check of the main bolo aperture. Hybrid coldstart done; no errors found ($set default cmod$models:[hybrid.tcl] $@hybinit_dispatch $@show_bitbus_log Use editor search to verify no occurrences of "error" nor "not respond") Reload 990205027 Confirm that RF feedback on RCUR is turned off (RF_LOAD_E = 0.0) | |
| Feb 9 1999 06:00:17:937PM | 990209001 | Robert Granetz | Shot 01 -- OH test. Good. Next shot: go for plasma |
| Feb 9 1999 09:22:02:640AM | 990209002 | Robert Granetz | Shot 02 -- Plasma. Disrupted at 0.4 s. 2pi bolo is now working, as is the XUV array. Next shot: no changes. |
| Feb 9 1999 09:40:27:937AM | 990209003 | Robert Granetz | Shot 03 -- Plasma. Disrupted at 0.4 s. Lots of dirt starting at 0.36 s (loop voltage rises, Ip turns over, nl_04 and 2pi rise. There were also some hard x-rays. Re-cool is taking 20 minutes. Next shot: no changes. |
| Feb 9 1999 10:43:36:233AM | 990209004 | Robert Granetz | Automatic disruption analysis routines have now been modified (after this shot) to be compatible with the new SQL database package (removed "set transaction", "commit", and "rollback" calls). |
| Feb 9 1999 12:06:35:310PM | 990209004 | Robert Granetz | Shot 04 -- Plasma. Again disrupted at 0.4 s, again plasma became resistive when the plasma diverts. TF crowbarred. Since there will be an extended break to change fuses and for re-cool, we will have a cell access now. Next shot: alternator test only |
| Feb 9 1999 12:07:04:577PM | 990209005 | Robert Granetz | Shot 05 -- Alternator test; to check some instrumentation. Looks good. Next shot: TF only test at 100 kA under PLC control. |
| Feb 9 1999 12:20:26:030PM | 990209006 | Robert Granetz | Shot 06 -- TF only test at 100 kA under PLC control. OK. Next shot: try once more with no argon or helium puffing. If it still disrupts at the same time, then I will switch to limited plasmas until the machine is cleaned up. |
| Feb 9 1999 12:49:12:293PM | 990209007 | Robert Granetz | Shot 07 -- Plasma. Good shot. No argon or helium puff. RF ramped to 1.8 MW after t=1.0 s. Next shot: enable a 20 ms argon puff (instead of 35 ms) at t=0.3 s, and an 0.25 s helium puff at t=0.65 s. |
| Feb 9 1999 06:00:35:793PM | 990209008 | Robert Granetz | Shot 08 -- Plasma. Disrupted at 1.04 s, just after start of RF. The RF caused this disruption. The extra helium (due to doubled pressure) increases the density 50%. Next shot: OH test. |
| Feb 9 1999 06:00:57:793PM | 990209009 | Robert Granetz | Shot 09 -- OH test. Good. Next shot: plasma; same as shot 08, but increase argon puff to 35 ms |
| Feb 9 1999 01:43:55:437PM | 990209010 | Robert Granetz | Very large amplitude measured on the strain gauge at the current quench. Looks alot like the C/D gusset halo Rogowski. |
| Feb 9 1999 02:12:07:560PM | 990209010 | Robert Granetz | Shot 10 -- Plasma. Very similar to shot 08. Disrupted at 1.06 s. Looks like it's due to the RF again. H/D ratio goes up to 4 (not 0.4) ! Next shot: same, except no RF, and increase argon puff to 40 ms. |
| Feb 9 1999 02:27:30:750PM | 990209011 | Robert Granetz | News flash: Tommy Toland just figured out why the hydrogen is so high. It turns out that due to an incorrect reconfiguration of TORVAC this morning, we've actually been fueling with hydrogen today, instead of deuterium !!! This is being remedied for the next shot. |
| Feb 9 1999 02:37:00:577PM | 990209011 | Robert Granetz | Shot 11 -- Plasma. Good shot. No RF (on purpose). Seems the RF and the large helium puff aren't compatible. Next shot: same, except no RF. |
| Feb 9 1999 03:03:18:437PM | 990209012 | Robert Granetz | Shot 12 -- Plasma. Good shot. H/D ranges from 0.6 to 0.85. No RF (on purpose). Next shot: same, except lengthen CLEARIN integral gain by 0.15 s (to t=1.3 s). |
| Feb 9 1999 03:34:12:670PM | 990209013 | Robert Granetz | Shot 13 -- Plasma. Good shot. Rampdown was unchanged from preceding shot. H/D ranges from 0.4 to 0.6. Next shot: lengthen CLEARIN integral gain to t=1.75 s. Slow down CLEARIN rampdown, a la Goetz. |
| Feb 9 1999 03:34:29:920PM | 990209014 | Robert Granetz | Shot 14 -- Plasma. Good shot. Rampdown hardly extended at all. H/D ranges from 0.35 to 0.45. Next shot: repeat, no changes. |
| Feb 9 1999 03:57:56:873PM | 990209015 | Robert Granetz | Shot 15 -- Plasma. Good shot. Rampdown is getting 5-10 ms longer each shot. H/D ranges from 0.25 to 0.40. Next shot: turn on RF. |
| Feb 9 1999 04:21:04:187PM | 990209016 | Robert Granetz | Shot 16 -- Plasma. Good shot. Prf=1 MW. H/D=0.25-0.4. Next shot: no changes |
| Feb 9 1999 04:35:42:810PM | 990209017 | Robert Granetz | Shot 17 -- Plasma. Disrupted at t=0.47 s. Large amounts of moly. Next shot: repeat, no changes. |
| Feb 9 1999 04:51:44:310PM | 990209018 | Robert Granetz | Shot 18 -- Plasma. Good shot. Prf=2 MW. H/D=0.2-0.4. Next shot: repeat, no changes |
| Feb 9 1999 05:09:23:763PM | 990209019 | Robert Granetz | Shot 19 -- Plasma. Good shot. Prf=2.0 MW. H/D=0.2-0.4. |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 08:48:54:030AM | Test | Ok | OH1,OH2L,OH2U coax test |
| 2 | 09:08:53:890AM | Plasma | Ok | OH1 Selfpowered ckt fire, on plasma disruption |
| 3 | 09:32:47:340AM | Plasma | Ok | oh1 self fired crkt flt. |
| 4 | 09:57:52:543AM | Plasma | Bad | TF type one fault |
| 5 | 12:03:23:450PM | Test | Ok | alternator excitation test only |
| 6 | 12:13:57:607PM | Test | Ok | TF test only |
| 7 | 12:38:18:983PM | Plasma | Ok | (null) |
| 8 | 01:03:28:373PM | Plasma | Ok | no faults |
| 9 | 01:19:12:263PM | Test | Ok | OH coax test shot only |
| 10 | 01:34:59:263PM | Plasma | Ok | No Faults / plasma |
| 11 | 02:03:54:590PM | Plasma | Ok | No Faults / Plasma |
| 12 | 02:48:35:950PM | Plasma | Ok | No Faults / Plasma |
| 13 | 03:06:29:467PM | Plasma | Ok | No Faults / Plasma |
| 14 | 03:25:28:560PM | Plasma | Ok | No Faults / plasma |
| 15 | 03:46:28:000PM | Plasma | Ok | No Faults / Plasma |
| 16 | 04:09:09:543PM | Plasma | Ok | No Faults / Plasma |
| 17 | 04:27:48:140PM | Plasma | Ok | No Faults / Plasma |
| 18 | 04:41:18:560PM | Plasma | Ok | No Faults / Plasma |
| 19 | 04:58:19:500PM | Plasma | Ok | No Faults / Plasma |