| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Steve Wukitch,Steve Wukitch |
| Physics operator(s): | Steve Wolfe |
| Engineering operator(s): | Dave Terry,Frank Silva,Bill Cochran,Vinny Bertolino |
| Engineering Operator Run Comment |
| CONTINUE WITH STARTUP RESTART |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Entered: Jul 7 2004 03:49:16:727PM |
| Author: To Be Determined |
| The plan is to continue with MP171A (40 MHz RF testing and conditioning) with D(He3) plasmas. Transmitters #3 and #4 were tested into dummy load (1 MW into dummy load) prior to the session. He3 is ready for use. The top priority is to get both transmitters broadcasting into plasmas with powers up to 1 MW each and running together. Measuring the effectiveness of the decoupler stub is another. MP178 will be explored to some extent depending upon the success of the decoupling. To facilitate RF operations, plasma discharges will be similar if not the same except for minor adjustments. In contrast to yesterday, the run was productive. We were able to run both transmitters to 1 MW by the end of the day (discharge 970605026 2 MW total for 50 msec). Although the heating efficiency is low due to the condition of the plasma and antenna, the GPC showed electron heating on several discharges. Two attempts were made to change the antenna phasing, but preliminary measurements suggest the decoupling stub position is incorrect. The amount of He3 injection was varied, but the concentration values were unknown. Furthermore the amount injected is probably small. The H/(H+D) ratio climbed to > 50% with a few shots and remained high throughout the session. Shot 01-05 gas tests 06 pl n_el = 0.7 x 10^20, I_p ~ 0.8 MA, B_T = 5.4 -> 4.0 T, P_rf=0.9 MW but mostly FMIT#3 07 pl disrupt @1.14 P_rf=0.9 MW but still mostly FMIT#3 08 pl both FMIT#3 and #4 run independently to P_rf=0.9 MW; changed B_T = 5.4->4.3 T 09 pl He3 delt_t= 0.1s 10 pl He3 delt_t= 0.2s 11 dud 12 test 13 pl no He3 14 pl He3 back on; P_rf = 0.8 MW 15 pl FMIT#3 and #4 ran simultaneously 16 pl sharkfin (unexplained density rise) and disrupted @0.4 sec 17 pl disrupt @ ~1 s ramped RF power to 1.5 MW 18 pl disrupt @ ~1 s ramped RF power to 1.6 MW 19 dud increased He3 (del_t = 0.3 s) spurious magnet resistance fault (only EF2 and EFC supplies fired) 20 fiz larger outer gap 21 fiz 22 dud put pi/2 phase delay in FMIT#4 23 pl disrupt @1.15 P_rf = 1 MW total 24 pl removed pi/2 delay and put pi phase delay in FMIT#4; P_rf=0.8 MW 25 pl P_rf=1.0 MW FMIT#4 only 26 pl P_rf=2.0 MW 27 pl FMIT#4 faulted 28 fiz 29 pl disrupt @0.37 s 30 fiz 31 pl FMIT#4 crowbar 32 no RF |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:36:57:550PM |
| Author: To Be Determined |
| Physop Summary for 970605 SL: Wukitch PO: wolfe EO: Silva,Cochrane/Terry,Bertolino MP: 171A RF conditioning The main goal is to get power into the machine from both transmitters and to try to get them to run together. Heating mode is supposed to be D(He3) in the vicinity of 4T. Run plan: Overnight ECDC in D2. Engineering setup as on 970604047; TF under hybrid control. Gas setup - hybrid enable the following valves fill K-side with 20 PSI of D2 fill B-top with 5 PSI of D2 Fill but do not enable: B-side-lower with 4 PSI of Ar B-side-upper should still have He3 - DO NOT PURGE! Note: there is a possible problem with the B-side-upper gas board. J. Goetz has sent e-mail to Willy Burke about this. It may be necessary to run some test cycles with someone in the cell before the start of the run to check this out. Enable ECE, PCX, TCX, VUV, Moly gate valves if their vacuums are acceptable. The run will start out with MP 170A (startup) and MP171A (RF conditioning). We may also try to use the cryopump prototype (MP 160). Session leader Takase has the option of starting an experiment outlined in OPS bulletin. Results: -------- There was in fact a problem with the B-side-upper. It turned out, after a lot of thrashing, including several test shot cycles, that the piezo is deceased; it had a resistance of 5.6 ohm, which also explains the low voltage observed on the digitizer yesterday. It turns out the old board had a 1K limiting resistor and the one Willy swapped in today had 10K, so the voltage appeared to go back to the right level, but the valve was essentially a short. The RF team had lots of work to do this morning, so they were not delayed due to the testing, but it was necessary to find an alternate source for the He3. It was decided to pulse through the NINJA system, where they also had a spectrometer set up to look at He plumes (by an odd coincidence). In order to get this to work, it was necessary to replace the PLC connection to the B-side-upper plenum and use that plenum to fill the lower divertor plenum. This results in each plenum having half the original fill. The PLC connection back to the He3 bottle is now disconnected to prevent the bottle from getting accidentally pumped away. The run was fairly successful in that we got a lot of plasmas and the RF got up to 2MW, with both transmitters running together. The attempt to cool the cryopump was unsuccessful, and the RF group did not manage to adjust the relative phasing of the straps. H/(H+D) was around 40% early in the day and rose to 60% by the end. Details: --------- The first five shots were tests of the gas board and piezo on b-side-upper. The run proper started at 11AM, with shot #6. Shots 6 and 7 ran, but were runaway discharges. Moving the PG3 segment 1 gas puff to start at t=0 did not help the runaway problem. RF #3 ran well on these shots (1MW) and #4 was in there at ~100kW. On shot #8 I both raised the fill and made ICef4 more positive by 10A. I believe it is the EF4 tweak that cured the runaways, but I can't prove it. Also on #8 the tf second flattop was raised from -107500A to -116kA, aiming for 4.3T instead of 4 (for D(He3) mode conversion). Shot#9 was the first shot with He3 from NINJA, shot #10 had more He3. Shot #11 was a hybrid dud! The wavegen put out funny glitchy target signals, and the supplies ended up close to where they were supposed to be but not close enough. A hybrid-only test shot did not reproduce the problem, and neither did an open-circuit test on shot#12. We decided it was a glitch and continued. Shot 13 I changed the ZXL program to ramp down, to try to get the strike points to stay around probe 4 for Blip. This succeeded in keeping the strike points more constant, but between probe 6 and 7, which is higher than Bruce wanted it. Shot 14 was preceded by a cell access to start the cryopump. Shot 15 was a repeat; the RF transmitters ran together on this one for the first(?) time. The cryopump cooled very slowly, indicating problems in LHe transfer; eventually this part of the run was abandoned. Shot 16 was supposed to be a repeat but had an early sharkfin (or other unexplained density ramp) and disrupted around OH1 crossover. Shots 17-18 disrupted with injections around 1sec. The RF was getting to 1.5MW and the antenna tiles were glowing after the shot. Shot 19 was a "magnet resistance fault" dud (only EF2 and EFC supplies fired). Shot 20-21 were fizzles with late breakdowns. A Br tweak did not help 19, but it was left in. Shot 22 was the second Wavegen dud of the day. This time was a repeat of the thing it did last week, with no signals at all out of the wavegen, so the supplies only came on to low levels based on offsets and Br feeback. Again, a hybrid-only test shot was ok. Shots 23-27 were plasmas, with RF getting better. 23 disrupted around 1.15 sec, the others lasted to 1.4-1.5. I tried several tweaks to try to extend rampdown, but nothing did much good. Note that one thing I did was delay the switch in RCUR offset (from 8000 to 6000) from 1.4 sec to 1.6 sec. This didn't seem to have much effect on shot length. Shot 28 was a fizzle with a late breakdown. On shot 29 I delayed the PG3 segment 1 gas puff, which had been moved earlier on shot 6 and not put back, and got a plasma that disrupted with an injection at .37 sec. #30 was a bouncing fizzle, presumably disruption recovery. Shot #31 was a plasma of about the same length as the other long ones; the RF got to 2MW, but trans #4 crowbarred. Shot #32 was the same programming, but with no RF and the Ar puff turned off, to see if the pulse length would be increased. It ran to the same length. Comments: -------- Power systems ran well, except for one disruption-induced OH1 crowbar. We had one PLC glitch (magnet resistance fault) that cost a shot. There were two hybrid problems, both involving the wavegen; if these continue, it may be worthwhile to try going back to J221 timing instead of the internal timing as it is presently set up. The b-side-upper piezo will need to be replaced over the maintenance week, one way or the other. Cryopump transfer problems may be debugged by tomorrow's run? Startup reliability was quite good today, with the only duds being power supply/hybrid related. There were 4 fizzles, some of which may have been "disruption recovery". The first two runaway discharges were fixed by making the EF4 current more positive, or by raising the pre-puff; I think the former. Cooling was working well, and we could have gotten more shots if the RF guys didn't think so much. Scorecard: --------- Tests 6 Duds 3 (2 hybrid, one PLC) fizzles 4 plasmas 19 ------ -- total 32 Raw startup fraction = 19/26 = 73% Useable plasmas 17 (including 2 with early runaways) Not too bad for an 11AM start. |
| Session Leader Comments | |||
| Jun 9 1997 07:47:48:710AM | Steve Wukitch | The plan is to continue with MP171A (40 MHz RF testing and conditioning) with D(He3) plasmas. Transmitters #3 and #4 were tested into dummy load (1 MW into dummy load) prior to the session. He3 is ready for use. The top priority is to get both transmitters broadcasting into plasmas with powers up to 1 MW each and running together. Measuring the effectiveness of the decoupler stub is another. MP178 will be explored to some extent depending upon the success of the decoupling. To facilitate RF operations, plasma discharges will be similar if not the same except for minor adjustments. | |
| Jun 9 1997 07:49:38:250AM | Steve Wukitch | Shots 01-05 were He3 gas tests. | |
| Jun 9 1997 07:56:34:510AM | 970605006 | Steve Wukitch | plasma n_el ~ 1 x 10^20, I_p ~ 0.8 MA, B_T = 5.4 -> 4.0 T, P_rf=0.9 MW but mostly FMIT#3, FMIT#4 was ~100 kW, no He3 |
| Jun 9 1997 07:59:11:120AM | 970605007 | Steve Wukitch | plasma disrupt @1.14s, P_rf=0.9 MW again mostly from FMIT#3 working on match so FMIT#3 and #4 run together |
| Jun 9 1997 08:00:59:050AM | 970605008 | Steve Wukitch | plasma both FMIT#3 and #4 run independently to P_rf=0.9 MW; ramped B_T to 4.3 T |
| Jun 9 1997 11:05:59:910AM | 970605009 | Steve Wukitch | plasma puffed He3 through NINJA (delt_t= 0.1s) |
| Jun 9 1997 11:06:25:140AM | 970605010 | Steve Wukitch | plasma puffed He3 through NINJA (delt_t= 0.2s beginning at t=0) |
| Jun 9 1997 11:07:02:340AM | 970605011 | Steve Wukitch | dud hybrid dud |
| Jun 9 1997 11:07:24:550AM | 970605012 | Steve Wukitch | hybrid-only test |
| Jun 9 1997 11:07:51:480AM | 970605013 | Steve Wukitch | plasma no He3 puff |
| Jun 9 1997 11:12:15:860AM | 970605014 | Steve Wukitch | plasma He3 puff from NINJA (delt_t=0.2 at t=0); P_rf = 0.8 MW |
| Jun 9 1997 11:14:58:810AM | 970605015 | Steve Wukitch | plasma FMIT #3 and #4 ran simultaneously; ramped power to 0.6 MW |
| Jun 9 1997 11:17:45:030AM | 970605016 | Steve Wukitch | plasma disrupted @0.4 sec; preceeded by an unexplained density rise (density sharkfin) |
| Jun 9 1997 11:32:33:090AM | 970605017 | Steve Wukitch | plasma disrupted @0.97 sec; ramped P_rf to 1.5 MW |
| Jun 9 1997 11:33:19:580AM | 970605018 | Steve Wukitch | plasma disrupted @0.97 sec; ramped P_rf to 1.6 MW |
| Jun 9 1997 11:37:11:590AM | 970605019 | Steve Wukitch | dud increased He3 (del_t = 0.3 sec at t=0) "magnet resistance fault" (only EF2 and EFC supplies fired) |
| Jun 9 1997 11:38:21:620AM | 970605020 | Steve Wukitch | fiz increased outer gap from 0.4 cm to 0.8 cm |
| Jun 9 1997 11:38:42:500AM | 970605021 | Steve Wukitch | fiz |
| Jun 9 1997 11:40:00:620AM | 970605022 | Steve Wukitch | dud Hybrid dud; put pi/2 phase delay in FMIT#4 |
| Jun 9 1997 11:40:56:470AM | 970605023 | Steve Wukitch | plasma disrupt @1.15 P_rf = 1 MW total |
| Jun 9 1997 11:42:01:530AM | 970605024 | Steve Wukitch | plasma removed pi/2 delay and put in pi phase delay in FMIT#4; P_rf=0.8 MW |
| Jun 9 1997 11:44:02:560AM | 970605026 | Steve Wukitch | plasma P_rf=1.0 MW (FMIT#4 only) |
| Jun 9 1997 11:44:41:250AM | 970605027 | Steve Wukitch | plasma ramped to P_rf=2.0 MW for 0.05 sec |
| Jun 9 1997 11:46:30:740AM | 970605027 | Steve Wukitch | plasma FMIT#4 faulted |
| Jun 9 1997 11:47:20:920AM | 970605028 | Steve Wukitch | fiz |
| Jun 9 1997 11:47:56:370AM | 970605029 | Steve Wukitch | plasma disrupt @0.37 sec |
| Jun 9 1997 11:48:09:400AM | 970605030 | Steve Wukitch | fiz |
| Jun 9 1997 11:48:55:390AM | 970605031 | Steve Wukitch | plasma FMIT#4 crowbar; cannot re-initialize |
| Jun 9 1997 11:49:13:160AM | 970605032 | Steve Wukitch | plasma no RF |
| Physics Operator Comments | |||
| Jun 5 1997 07:28:25:530AM | Steve Wolfe | Coldstart ok at 07:25:28.22 | |
| Jun 5 1997 07:31:20:270AM | Steve Wolfe | Run plan for 970605: Overnight ECDC in D2. Engineering setup as on 970604047; TF under hybrid control. Gas setup - hybrid enable the following valves fill K-side with 20 PSI of D2 fill B-top with 5 PSI of D2 Fill but do not enable: B-side-lower with 4 PSI of Ar B-side-upper should still have He3 - DO NOT PURGE! Note: there is a possible problem with the B-side-upper gas board. J. Goetz has sent e-mail to Willy Burke about this. It may be necessary to run some test cycles with someone in the cell before the start of the run to check this out. Enable ECE, PCX, TCX, VUV, Moly gate valves if their vacuums are acceptable. The run will start out with MP 170A (startup) and MP171A (RF conditioning). We may also try to use the cryopump prototype (MP 160). Session leader Takase has the option of starting an experiment outlined in OPS bulletin. | |
| Jun 5 1997 08:27:37:910AM | 970605001 | Steve Wolfe | Set up a .5 sec pulse for Willy to check the gas board. Willy is going to just swap out the board for a spare. Put back the 970604047 shot in PCS Forgot to move the fizzle detector. NO output Try again |
| Jun 5 1997 08:34:30:010AM | 970605002 | Steve Wolfe | Still checking on gas board, fizzle detector moved to 1.5sec Willy is going to just swap out the board for a spare. Put back the 970604047 shot in PCS Access bypassed for Mike and Sergei in Power room. OK - 9V signal on B-side upper. No gas observed on ratiomatic or RGA though. |
| Jun 5 1997 08:46:07:220AM | 970605003 | Steve Wolfe | Lengthen pulse on PG2 to 100msec to see if it will open there. Still no gas in the machine. |
| Jun 5 1997 09:18:20:880AM | 970605004 | Steve Wolfe | Burke and Blip are in the cell to look at signals at the valve, to see if they are getting all the through. Still a 100msec pulse @.5sec Didn't see it. |
| Jun 5 1997 09:19:10:460AM | 970605005 | Steve Wolfe | Burke and Blip are in the cell to look at signals at the valve, to see if they are getting all the through. Make it a 500msec pulse @.5sec They saw that. Try a 1sec pulse onto the valve next. |
| Jun 5 1997 10:20:53:370AM | 970605005 | Steve Wolfe | I've drawn a 1sec pulse; there is a question whether the hand-valve is open. It turns out the piezo is dead. 5.6ohms (should be 1Mohm or so) Punt the B-side-upper. We'll use the NINJA for He3 if at all. |
| Jun 5 1997 11:06:45:450AM | 970605006 | Steve Wolfe | Shot 6: Go for plasma Re-load, for about the fifth time, 970604047 RF has solved an oscillation problem on transmitter #4. Blip is getting set up for NINJA. Cryo has a problem with the transfer line; no cryo today. There is LN2 in the cryopump now. It should be warming up. We may get cryo later; the problem was the pump on the xfer line. plasma ; lots of hards? bd at 5.6msec, CII =.006. hard xrays (eq. neut rate=1.5e14)! Nice density, current. Rf claims to be 1MW (on #3), #4 100kW early, retrying late. |
| Jun 5 1997 11:22:21:180AM | 970605007 | Steve Wolfe | Shot 7: Move seg1 PG3 earlier Enable Argon Move RF pulses later in shot to get to where we have 4T. Still runaways. disr at 1.12. Got RF for both pulses. |
| Jun 5 1997 11:37:59:710AM | 970605008 | Steve Wolfe | Shot 8: Raise PG4 from 22 to 25msec IC_ef4 from -1325 to -1315. TF to -116 move tf ramp earlier by 100msec plasma, runaways not obvious on tv. runs to 1.45. some hesitation in early current, not terrible. No hards. RF looking better. |
| Jun 5 1997 11:58:59:510AM | 970605009 | Steve Wolfe | Shot 9: TF from -116 to -117 (he wants 4.3, not 4.25) Blip is doing a test pulse on NINJA before shot, while Mike does something in pwr room. NINJA at .3 for .1; Move RCUR to sit at .675 from .5sec on, instead of ramping out. plasma to 1.43 RF from #3, #4 still dropping out early. |
| Jun 5 1997 12:16:21:620PM | 970605010 | Steve Wolfe | Shot 10: NINJA pulse length to .200 and .1 sec earlier. plasma to 1.4sec RF still working on getting #4 to coexist with #3 |
| Jun 5 1997 12:41:57:090PM | 970605011 | Steve Wolfe | Shot 11: NINJA pulse length to .200 and .1 sec earlier. Change ZXL program from flat at -.018 to ramp down to -.023 from 0.65 sec to 1.2sec Move end point on TF ramp from .45 to .35 to try to get the field down by .5sec dud. POwer supplies look strange. hybrid signals look bad. The physAout signals look like there are holes in them. The problem seems to be on the Wavegen outputs. It has lots of chops in it. |
| Jun 5 1997 12:56:14:220PM | 970605012 | Steve Wolfe | Shot 12: Taking a test shot on the hybrid. #279 Wavegen now looks ok. Take an open circuit test shot. Pout looks fine. I have no idea what could cause it to glitch like that. |
| Jun 5 1997 01:16:38:100PM | 970605013 | Steve Wolfe | Shot 13: try again: NINJA pulse length to .200 and .1 sec earlier. only through one capilary this time. Change ZXL program from flat at -.018 to ramp down to -.023 from 0.65 sec to 1.2sec Move end point on TF ramp from .45 to .35 to try to get the field down by .5sec plasma. 1.46 sec. No glitches on hybrid. RF got .6MW on #4. May need more ramp on ZXL, but it did what I asked. Strike is on probe 6-7, flatter, but too high. May need to run RXL in, but not next shot. Cell access to turn on cryo; also RSG,Dimitri,Rejean have things to do. |
| Jun 5 1997 01:33:20:250PM | 970605014 | Steve Wolfe | Shot 14: Cryo is cooling Everything else should be the same, except NINJA should go with both barrells base=7.2e-7 and dropping plasma, to 1.43 Rf get .8MW from something Cryo not yet below 39K (where the CERNOX detectors work) |
| Jun 5 1997 01:43:52:870PM | 970605015 | Steve Wolfe | Shot 15: no changes plasma, 1.43 sec RF supposedly runs together. |
| Jun 5 1997 02:03:34:030PM | 970605016 | Steve Wolfe | Shot 16: no changes Cell access before shot; Frank wants to look at xfer line. RF is tracking down a possible arc plasma - short. disr at .4, near oh1 crossover looks like an early sharkfin(?) like yesterday. OH1 crowbarred again. |
| Jun 5 1997 02:15:06:330PM | 970605017 | Steve Wolfe | Shot 17: no changes, see if it comes back base=1.2e-6 plasma to .97sec divot at .6sec, goes boom at .97 RF is ramping up to 1.5MW Big injection; Brian denies responsibility |
| Jun 5 1997 02:26:15:360PM | 970605018 | Steve Wolfe | Shot 18: Brian will not fire at the late time No other changes. plasma disr at .97 again antenna is glowing incandescant when power is on, |
| Jun 5 1997 02:33:26:910PM | 970605019 | Steve Wolfe | Shot 19: Change RCUR from .675 to .673 to increase gap a bit. cryo not cooling; still a problem with the transfer line. dud - hardly any supplies: the dreaded magnet resistance fault |
| Jun 5 1997 02:44:23:320PM | 970605020 | Steve Wolfe | Shot 20: Retry (same as 19) Change RCUR from .675 to .673 to increase gap a bit. cryo not cooling; still a problem with the transfer line. fizzle. late breakdown 12msec |
| Jun 5 1997 02:54:07:550PM | 970605021 | Steve Wolfe | Shot 21: br0 from .006 to .0065 Still waiting to see if the RCUR change helps fizzle bd at 15msec! null looks like I went the right way; plasma doesn't agree |
| Jun 5 1997 03:05:16:020PM | 970605022 | Steve Wolfe | Shot 22: No change, see if it comes back on it's own. No supplies - dud No hybrid demands? NO wavegen signals. This is the second wavegen screwup today. It did this last week. Test shot 280 runs ok. |
| Jun 5 1997 03:14:05:400PM | 970605023 | Steve Wolfe | Shot 23: No change, see if it comes back on it's own. plasma - disrupted at 1.15 sec bd at 6msec, nice early current rise. RF power lower, around 1MW. outer gap now around 7mm, larger before the disruption. |
| Jun 5 1997 03:27:07:210PM | 970605024 | Steve Wolfe | Shot 24: No changes from my end plasma - made it through to ramp-down (1.48sec) Under 1MW on the RF. They are worried because they thought they changed the phase and it didn't change. bd was a little later, 6.8msec. It may be drifting away again. |
| Jun 5 1997 03:41:50:650PM | 970605025 | Steve Wolfe | Shot 25: No changes from my end plasma, 1.46 sec Only 1 RF pulse (1MW); #4 went, #3 tripped |
| Jun 5 1997 03:51:05:340PM | 970605026 | Steve Wolfe | Shot 26: Extend RCUR flat from 1.2sec to 1.5sec to try to extend rampdown Next shot I may delay the RCUR offset switch from 1.4 sec to 1.6 just to see what happens. plasma - same length 1.44sec rf gets to 2MW bd back at 6.3msec |
| Jun 5 1997 03:59:44:470PM | 970605027 | Steve Wolfe | Shot 27: Move jump in RCUR offset (8000 to 6000) from 1.4 sec to 1.6 sec Blip wants me to move RXL in to try to lower the strike. plasma, 1.49sec RF got 1MW. transmitter #4 faulted before the shot. |
| Jun 5 1997 04:20:35:870PM | 970605028 | Steve Wolfe | Shot 28: Hold ZXL near constant in rampdown, instead of ramping up Cryo has punted for the day. fizzle. late bd (12msec) null looks no worse than before, but there is a negative Br thrash. Cell access for Dmitri, while I decide whether to leave it or tweak. |
| Jun 5 1997 04:35:07:020PM | 970605029 | Steve Wolfe | Shot 29: shot 28 had a very early gas chop (1msec and again at 8msec) I'm going to delay the pg3 program to 8msec. short disruption @.370, turned around at .3 Injections bd was back at 6msec Just go again. |
| Jun 5 1997 04:42:26:680PM | 970605030 | Steve Wolfe | Shot 30: No changes base=1.8e-6 fizzle, made it to 40kA. a bouncer. It's visible on ECE? Was it going to runaway? Just go again. |
| Jun 5 1997 04:49:48:580PM | 970605031 | Steve Wolfe | Shot 31: No changes base=1.1e-6 plasma to 1.46 sec Note that the last rampdown change was to ZXL, and didn't do any good. It looks like a small shark fin. Rf made it to 2MW, but only briefly camac errors on some engineering voltage traces |
| Jun 5 1997 04:55:24:070PM | 970605032 | Steve Wolfe | Shot 32: NO RF, (trans #4 has crowbarred) turn off b-side lower to see if it affects the rampdown. plasma- same length. |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 08:23:53:020AM | Test | Bad | GAS TEST ONLY |
| 2 | 08:30:00:130AM | Test | Ok | GAS TEST |
| 3 | 08:41:08:790AM | Test | Ok | GAS TEST |
| 4 | 09:06:47:770AM | Test | Ok | GAS TEST |
| 5 | 09:13:37:700AM | Test | Bad | gas test |
| 6 | 10:57:41:170AM | Test | Ok | |
| 7 | 11:13:16:380AM | Test | Ok | |
| 8 | 11:33:11:430AM | Test | Ok | |
| 9 | 11:51:45:330AM | Plasma | Ok | |
| 10 | 12:11:47:470PM | Plasma | Ok | |
| 11 | 12:24:09:390PM | Test | Ok | |
| 12 | 12:51:24:100PM | Test | Ok | |
| 13 | 12:58:22:450PM | Plasma | Ok | |
| 14 | 01:25:52:930PM | Plasma | Ok | |
| 15 | 01:38:37:940PM | Plasma | Ok | |
| 16 | 01:55:25:930PM | Plasma | Ok | |
| 17 | 02:05:04:440PM | Plasma | Ok | |
| 18 | 02:18:03:100PM | Plasma | Ok | |
| 19 | 02:31:28:810PM | Plasma | Ok | |
| 20 | 02:39:46:650PM | Plasma | Ok | |
| 21 | 02:49:14:370PM | Plasma | Ok | |
| 22 | 02:57:56:280PM | Plasma | Bad | hybrid fault |
| 23 | 03:07:22:640PM | Plasma | Ok | |
| 24 | 03:22:42:920PM | Plasma | Ok | |
| 25 | 03:31:29:500PM | Plasma | Ok | |
| 26 | 03:44:31:370PM | Plasma | Ok | |
| 27 | 03:54:18:770PM | Plasma | Ok | |
| 28 | 04:14:14:590PM | Plasma | Ok | |
| 29 | 04:29:12:720PM | Plasma | Ok | |
| 30 | 04:37:02:840PM | Plasma | Ok | |
| 31 | 04:43:49:240PM | Plasma | Ok | |
| 32 | 04:53:27:270PM | Plasma | Ok | |