| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | John Rice |
| Physics operator(s): | Jim Irby |
| Engineering operator(s): | Unknown |
| Engineering Operator Run Comment |
| MP 256 Impurity Transport Coefficent Profiles During PEP Mode. Rice/Irby |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Entered: Jul 7 2004 03:49:23:257PM |
| Author: To Be Determined |
| Run summary for 1000509, MP256, Impurity Transport Coefficient Profiles in P-mode The purpose of this run was to determine the profiles of the impurity diffusion coefficient and convection velocity during P-mode, induced by lithium pellet injection. Complete radial brightness profiles for He-like argon lines were obtained. Density and temperature profiles were obtained from Thomson scattering, with the normal coverage extended by moving the plasma down on shots 17 and 18, and up on shot 20. The radial scan was done at 1 MA plasma current, with the prospect of moving the location of the P-mode peaking out in radius. However, the peaking occured inside of 6.5 cm in minor radius, the same location that was seen for 0.8 MA. Useful shots for the scan were 08 through 20. The pellet injector performed reliably, with 32 total pellets fired, of which only one seemed to fragment. Most shots had 2 pellets, for a comparison of Ohmic P-mode with ICRF PEP mode, which occured on some of the shots with the second pellet at .93 s, and the RF begining at 1.0 s. This should allow for a complete characterization of the impurity transport coefficient profiles in conjunction with modeling from MIST. |
| Physics Operator Summaries |
| Entered: Jul 7 2004 04:37:10:537PM |
| Author: To Be Determined |
| Engineering Setup for run 1000509 Run to start at 09:00 and end at 17:00. Goals: MP # 256 Impurity Transport Coefficient Profiles During PEP Mode (Li Pellets) Continue ICRF Conditioning Continue DNB Commissioning SL: John Rice PO: Jim Irby Engineering: ------------ ECDC overnight in D2, turn off 2 hours before run Power system setup as on 1000505023 OH and TF fizzle delays of 300 and 400 ms. Gas setup - fill B-top 6 psi of D2 Hybrid enabled fill B-side lower 1 psi of Ar Hybrid enabled leave B-side upper as is Hybrid DISABLED fill C-side 30 psi of D2 Hybrid enabled leave J-bottom as is Hybrid DISABLED The following gate valves should be enabled: VUV ECE DNB Run Plan: --------- Start up from last plasma shot from Friday. RF will not be needed at the beginning of the run, but can fire late in the shot as can the the DNB. We will try to fire two pellets during each discharge and try to have two target densities. RF will be needed later in the run probably during the second pellet injection. Results: We started the run with two test shots. Shot 1 was a cycle and gas test while we waited for the alternator to come up to speed. Shot 2 was the standard OH test. Several of the first plasma shots were lost early either because of pellets or too much argon. The argon was reduced on shot 8. We had one fizzle today because the DNB was not enabled for the shot, and the prefill pressure was therefore too low. A plasma Z-position scan was run over shots 17, 18, 20, for the core TS. LPI worked well. Generally a very good run from the operations standpoint. Problems: May have a problem with the E port phaseshifter. We will pump,purge, and backfill with SF6 tomorrow morning. Lost some data on shot 16 because of a disk full problem. Scanning probe at f-bottom seems to be injecting dust into plasma after it retracts. May have caused disruption on shot 22. Score: tests 2 plasmas 16 fizzles 1 total cycles 22 ---------------------------------------------------------------------------- 1000509xxx irby PHYSICS_OPERATOR May 9 2000 7:20:28:076AM . . . . . . . . . . . . . . . . . . . . Loaded shot 1000505023 from last Friday Did coldstart: rtnode -- data loaded, A matrix responds rtnode -- data loaded, M matrix responds rtnode -- data loaded, PID matrix responds RT_NODE Done ---------------------------------------------------------------------------- 1000509xxx irby DISCHARGE_CLEAN May 9 2000 7:21:48:793AM . . . . . . . . . . . . . . . . . . . . ECDC in D2 overnight at 2.e-4 Torr ---------------------------------------------------------------------------- 1000509001 irby PHYSICS_OPERATOR May 9 2000 9:29:57:860AM . . . . . . . . . . . . . . . . . . . . Alternator is not ready so we are doing no magnet cycle test. Pulsed gas is enabled so we can check gas levels at startup time. DNB gatevalve and gas should also be enabled. shot: 1000509001 Gas looks okay. ---------------------------------------------------------------------------- 1000509001 rice SESSION_LEADER May 9 2000 9:39:03:466AM . . . . . . . . . . . . . . . . . . . . Tuesday morning test, no plasma ---------------------------------------------------------------------------- 1000509002 irby PHYSICS_OPERATOR May 9 2000 9:43:59:280AM . . . . . . . . . . . . . . . . . . . . Alternator was ready by 9:20 or so. OH test ---------------------------------------------------------------------------- 1000509002 rice SESSION_LEADER May 9 2000 9:56:18:793AM . . . . . . . . . . . . . . . . . . . . reload 1000505023 Li pellets at .64 and .90 s good P-mode on the first pellet ---------------------------------------------------------------------------- 1000509003 rice SESSION_LEADER May 9 2000 9:57:36:530AM . . . . . . . . . . . . . . . . . . . . Li pellets at .64 and .90 s good P-mode on the first pellet ---------------------------------------------------------------------------- 1000509003 irby PHYSICS_OPERATOR May 9 2000 10:04:27:233AM . . . . . . . . . . . . . . . . . . . . Plasma attempt Earl should have pellets at 0.64 and 0.90 seconds Plasma to rampdown Two pellets as expected OHs look good, TF looks good. ---------------------------------------------------------------------------- 1000509004 rice SESSION_LEADER May 9 2000 10:11:37:996AM . . . . . . . . . . . . . . . . . . . . Li pellets at .64 and .90 s good P-mode on the second pellet, followed by disruption ---------------------------------------------------------------------------- 1000509004 irby PHYSICS_OPERATOR May 9 2000 10:20:39:733AM . . . . . . . . . . . . . . . . . . . . John says just keep firing PCS repeat Disruption at 1.05 seconds, probably because of second pellet ---------------------------------------------------------------------------- 1000509005 rice SESSION_LEADER May 9 2000 10:31:44:246AM . . . . . . . . . . . . . . . . . . . . disruption at .51 s, no pellets ---------------------------------------------------------------------------- 1000509005 irby PHYSICS_OPERATOR May 9 2000 10:50:28:873AM . . . . . . . . . . . . . . . . . . . . Repeat Lost plasma early at abt 0.5 s ---------------------------------------------------------------------------- 1000509006 rice SESSION_LEADER May 9 2000 11:13:53:966AM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .9 s P-mode after 1st pellet ---------------------------------------------------------------------------- 1000509006 irby PHYSICS_OPERATOR May 9 2000 11:17:12:936AM . . . . . . . . . . . . . . . . . . . . PCS Change: Made -.5 mT change to BR_0 --- hope to help the startup a little Changed Alternator Camac clock from 500 to 1500 Hz for Dave Terry. Plasma through rampdown Certainly got more negative Br0 ---------------------------------------------------------------------------- 1000509007 rice SESSION_LEADER May 9 2000 11:34:33:200AM . . . . . . . . . . . . . . . . . . . . pellet at .64 P-mode, followed by disruption 1 MA ---------------------------------------------------------------------------- 1000509007 irby PHYSICS_OPERATOR May 9 2000 11:40:19:936AM . . . . . . . . . . . . . . . . . . . . Asking for 1 MA Ip Got current but lost plasma after first pellet: 0.93 s ---------------------------------------------------------------------------- 1000509007 wukitch RF May 9 2000 11:56:12:466AM . . . . . . . . . . . . . . . . . . . . next shot: D: [1.,1.4]sec, @[0.1-0.8]MW ---------------------------------------------------------------------------- 1000509007 rice SESSION_LEADER May 9 2000 11:59:46:950AM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2 good P-modes 1 MA ---------------------------------------------------------------------------- 1000509008 rice SESSION_LEADER May 9 2000 12:00:02:263PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2 good P-modes 1 MA ---------------------------------------------------------------------------- 1000509008 irby PHYSICS_OPERATOR May 9 2000 12:06:11:186PM . . . . . . . . . . . . . . . . . . . . Reduced argon puff width by .025 seconds Removed TF 50 kA backporch Plasma into rampdown H-mode with just a little D-port power Lots of small injections on 2Pi diode. ---------------------------------------------------------------------------- 1000509008 wukitch RF May 9 2000 12:12:50:186PM . . . . . . . . . . . . . . . . . . . . 008 plasma 1 MA D: [1.,1.4]sec, @[0.1-0.8]MW late H-mode next shot: D: [1.,1.4]sec, @[0.8-1.3]MW ---------------------------------------------------------------------------- 1000509009 rice SESSION_LEADER May 9 2000 12:22:07:996PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2 good P-modes 1 MA ---------------------------------------------------------------------------- 1000509009 wukitch RF May 9 2000 12:23:25:670PM . . . . . . . . . . . . . . . . . . . . 009 plasma 1 MA D: [1.,1.4]sec, @[0.8-1.5]MW multiple H-modes next shot: D off; J-port: [1,1.4]sec,[0.4-.8] ---------------------------------------------------------------------------- 1000509009 wukitch RF May 9 2000 12:23:57:700PM . . . . . . . . . . . . . . . . . . . . 009 plasma 1 MA D: [1.,1.4]sec, @[0.8-1.5]MW multiple H-modes next shot: D off; J-port: [1,1.4]sec,[0.8-1.6] ---------------------------------------------------------------------------- 1000509009 irby PHYSICS_OPERATOR May 9 2000 12:49:26:780PM . . . . . . . . . . . . . . . . . . . . PCS repeat Plasma to rampdown ---------------------------------------------------------------------------- 1000509010 rice SESSION_LEADER May 9 2000 12:43:54:483PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2 good P-modes 1 MA ---------------------------------------------------------------------------- 1000509010 irby PHYSICS_OPERATOR May 9 2000 12:50:28:343PM . . . . . . . . . . . . . . . . . . . . PCS Repeat Plasma to rampdown J-port coming up 2 pellets ---------------------------------------------------------------------------- 1000509010 wukitch RF May 9 2000 12:58:52:483PM . . . . . . . . . . . . . . . . . . . . 010 plasma 1 MA two H-modes with J alone; treshold of ~1.4MW J3: ramp from 0.4 to 0.9MW; no faults J4: ramp from 0.45 to 0.95MW; no faults next shot: J-port: [1,1.4]sec,[1.0,1.3] ---------------------------------------------------------------------------- 1000509011 rice SESSION_LEADER May 9 2000 1:07:29:606PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2 good P-modes 1 MA ---------------------------------------------------------------------------- 1000509011 wukitch RF May 9 2000 1:15:34:483PM . . . . . . . . . . . . . . . . . . . . 011 plasma 1 MA one H-mode with J alone; treshold of ~1.4MW J3: ramp from 0.5 to 0.7MW; no faults J4: ramp from 0.6 to 0.7MW; no faults phase close to [0,1,0,1]*!pi {says 210deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.2,1.2] and change phase to 255deg ---------------------------------------------------------------------------- 1000509011 irby PHYSICS_OPERATOR May 9 2000 1:39:30:140PM . . . . . . . . . . . . . . . . . . . . PCS Repeat Alternator clock to 2500 Hz from 1500 Hz Plasma to rampdown ---------------------------------------------------------------------------- 1000509012 irby PHYSICS_OPERATOR May 9 2000 1:46:59:513PM . . . . . . . . . . . . . . . . . . . . No PCS changes Fizzle: DNB was off --- prefill level low ---------------------------------------------------------------------------- 1000509013 rice SESSION_LEADER May 9 2000 1:55:47:936PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2nd good P-mode 1 MA ---------------------------------------------------------------------------- 1000509013 irby PHYSICS_OPERATOR May 9 2000 2:01:37:250PM . . . . . . . . . . . . . . . . . . . . No PCS changes Plasma to rampdown ---------------------------------------------------------------------------- 1000509013 wukitch RF May 9 2000 2:02:41:246PM . . . . . . . . . . . . . . . . . . . . 013 plasma 1 MA one H-mode with ELMs J3: ramp from 0.5 to 0.7MW; no faults J4: ramp from 0.6 to 0.7MW; no faults phase close to [0,1,-.2,.8]*!pi {says 255deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.2,1.2] and change phase to 290 deg ---------------------------------------------------------------------------- 1000509014 rice SESSION_LEADER May 9 2000 2:21:08:996PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .90s 2nd good P-mode 1 MA ---------------------------------------------------------------------------- 1000509014 irby PHYSICS_OPERATOR May 9 2000 2:25:41:920PM . . . . . . . . . . . . . . . . . . . . No PCS changes Plasma to rampdown ---------------------------------------------------------------------------- 1000509014 wukitch RF May 9 2000 2:38:10:030PM . . . . . . . . . . . . . . . . . . . . 014 plasma 1 MA mutiple H-modes with ELMs J3: ramp from 0.5 to 0.7MW; no faults J4: ramp from 0.6 to 0.7MW; no faults phase close to [0,1,0,1]*!pi {says 210deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.5,1.5] and change phase to 210 deg D-port [1,1.4]sec,[1.5,1.5] ---------------------------------------------------------------------------- 1000509015 wukitch RF May 9 2000 2:40:54:936PM . . . . . . . . . . . . . . . . . . . . 015 plasma 1 MA mutiple H-modes D: 1.5 MW J3: 0.7MW; 3 faults - DC1 faults J4: 0.7MW; 6 faults phase close to [0,1,0,1]*!pi {says 210deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.5,1.5] - retune add backporch D-port [1,1.4]sec,[1.5,1.5] ---------------------------------------------------------------------------- 1000509015 rice SESSION_LEADER May 9 2000 2:47:31:780PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .93s 2nd pellet good P-mode 1 MA ---------------------------------------------------------------------------- 1000509015 irby PHYSICS_OPERATOR May 9 2000 2:51:51:733PM . . . . . . . . . . . . . . . . . . . . No PCS changes Plasma to rampdown ---------------------------------------------------------------------------- 1000509016 wukitch RF May 9 2000 3:03:16:746PM . . . . . . . . . . . . . . . . . . . . 016 plasma 1 MA mutiple H-modes D: 1.5 MW; 1 fault J3: 0.7MW; 2 faults - DC1 faults J4: 0.7MW; 3 faults phase close to [0,1,0,1]*!pi (says 210deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.5,2.5] MW D-port [1,1.4]sec,[1.5,1.5] MW ---------------------------------------------------------------------------- 1000509016 irby PHYSICS_OPERATOR May 9 2000 3:05:25:590PM . . . . . . . . . . . . . . . . . . . . No PCS Changes Plasma to rampdown ---------------------------------------------------------------------------- 1000509016 rice SESSION_LEADER May 9 2000 3:08:47:843PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .93s 2 good P-modes 1 MA ---------------------------------------------------------------------------- 1000509016 wukitch RF May 9 2000 3:26:57:123PM . . . . . . . . . . . . . . . . . . . . 016 plasma 1 MA mutiple H-modes D: 1.5 MW; 1 fault J3: [0.7,1.2]MW; 2 faults - DC1 faults J4: [0.7,1.2]MW; 3 faults phase close to [0,1,0,1]*!pi (says 210deg on the |
| Entered: Jul 7 2004 04:37:10:567PM |
| Author: To Be Determined |
| LC screen) next shot: J-port: [1,1.4]sec,[1.5,2.5] MW D-port [1,1.4]sec,[1.5,1.5] MW plasma is moving down 1 cm ---------------------------------------------------------------------------- 1000509017 rice SESSION_LEADER May 9 2000 3:18:28:060PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .93s 2 good P-modes 1 MA plasma 1 cm low ---------------------------------------------------------------------------- 1000509017 irby PHYSICS_OPERATOR May 9 2000 3:31:05:590PM . . . . . . . . . . . . . . . . . . . . Dropped ZCUR by 1cm Plasma to rampdown Plasma did move down approx 1 cm ---------------------------------------------------------------------------- 1000509018 rice SESSION_LEADER May 9 2000 3:40:16:640PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .93s 1st pellet good P-mode 1 MA plasma 1 cm low ---------------------------------------------------------------------------- 1000509018 irby PHYSICS_OPERATOR May 9 2000 3:46:12:420PM . . . . . . . . . . . . . . . . . . . . Dropped plasma another cm. Plasma to rampdown ---------------------------------------------------------------------------- 1000509018 wukitch RF May 9 2000 3:52:30:200PM . . . . . . . . . . . . . . . . . . . . 018 plasma D: 1.6 MW; 1 fault DC0 J3: [0.7,0.8]MW; 4 faults - DC1 faults J4: [0.7,0.8]MW; 4 faults - DC0 faults phase close to [0,1,0,1]*!pi (says 210deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.5,1.5] MW D-port [1,1.4]sec,[1.5,1.5] MW plasma back to normal height. (shot 016) ---------------------------------------------------------------------------- 1000509019 irby PHYSICS_OPERATOR May 9 2000 4:07:16:906PM . . . . . . . . . . . . . . . . . . . . Reloaded 1000909016 to get back ZCUR Plasma to rampdown ---------------------------------------------------------------------------- 1000509019 wukitch RF May 9 2000 4:09:39:090PM . . . . . . . . . . . . . . . . . . . . 019 plasma D: 1.6 MW; 3 faults DC0 J3: [0.7,0.8]MW; 2 faults - DC1 faults J4: [0.7,0.8]MW; 9 faults - DC0 and 1 DC1 faults phase close to [0,1,0,1]*!pi (says 210deg on the PLC screen) next shot: J-port: [1,1.4]sec,[1.5,1.8] MW step at 1.2 sec D-port [1,1.4]sec,[1.5,1.5] MW plasma back to normal height. (shot 016) ---------------------------------------------------------------------------- 1000509019 rice SESSION_LEADER May 9 2000 4:17:47:310PM . . . . . . . . . . . . . . . . . . . . pellets at .64 and .93s not the greatest P-modes 1 MA plasma centered ---------------------------------------------------------------------------- 1000509020 rice SESSION_LEADER May 9 2000 4:25:25:746PM . . . . . . . . . . . . . . . . . . . . pellet at .64 good P-mode 1 MA plasma 1 cm high disrupted ---------------------------------------------------------------------------- 1000509020 irby PHYSICS_OPERATOR May 9 2000 4:27:17:186PM . . . . . . . . . . . . . . . . . . . . Moved ZCUR up about 1 cm. Lost plasma at 0.845 s --- z-position? ---------------------------------------------------------------------------- 1000509021 irby PHYSICS_OPERATOR May 9 2000 4:53:05:390PM . . . . . . . . . . . . . . . . . . . . Loaded shot 1000509019 to reset zcur Plasma to rampdown ---------------------------------------------------------------------------- 1000509021 rice SESSION_LEADER May 9 2000 4:55:26:263PM . . . . . . . . . . . . . . . . . . . . pellet at .45 good P-mode 1 MA plasma centered ---------------------------------------------------------------------------- 1000509022 rice SESSION_LEADER May 9 2000 5:06:42:030PM . . . . . . . . . . . . . . . . . . . . pellet at .47 good P-mode 1 MA ---------------------------------------------------------------------------- 1000509022 irby PHYSICS_OPERATOR May 9 2000 5:10:56:280PM . . . . . . . . . . . . . . . . . . . . Repeat Lost plasma at 0.86 s We began to see sparks from the f-bottom scanning probe on the last shot (LANL camera). |
| Session Leader Comments | |||
| May 9 2000 09:39:03:467AM | 1000509001 | John Rice | Tuesday morning test, no plasma |
| May 9 2000 09:56:18:793AM | 1000509002 | John Rice | reload 1000505023 Li pellets at .64 and .90 s good P-mode on the first pellet |
| May 9 2000 09:57:36:530AM | 1000509003 | John Rice | Li pellets at .64 and .90 s good P-mode on the first pellet |
| May 9 2000 10:11:37:997AM | 1000509004 | John Rice | Li pellets at .64 and .90 s good P-mode on the second pellet, followed by disruption |
| May 9 2000 10:31:44:247AM | 1000509005 | John Rice | disruption at .51 s, no pellets |
| May 9 2000 11:13:53:967AM | 1000509006 | John Rice | pellets at .64 and .9 s P-mode after 1st pellet |
| May 9 2000 11:34:33:200AM | 1000509007 | John Rice | pellet at .64 P-mode, followed by disruption 1 MA |
| May 9 2000 11:59:46:950AM | 1000509007 | John Rice | pellets at .64 and .90s 2 good P-modes 1 MA |
| May 9 2000 12:00:02:263PM | 1000509008 | John Rice | pellets at .64 and .90s 2 good P-modes 1 MA |
| May 9 2000 12:22:07:997PM | 1000509009 | John Rice | pellets at .64 and .90s 2 good P-modes 1 MA |
| May 9 2000 12:43:54:483PM | 1000509010 | John Rice | pellets at .64 and .90s 2 good P-modes 1 MA |
| May 9 2000 01:07:29:607PM | 1000509011 | John Rice | pellets at .64 and .90s 2 good P-modes 1 MA |
| May 9 2000 01:55:47:937PM | 1000509013 | John Rice | pellets at .64 and .90s 2nd good P-mode 1 MA |
| May 9 2000 02:21:08:997PM | 1000509014 | John Rice | pellets at .64 and .90s 2nd good P-mode 1 MA |
| May 9 2000 02:47:31:780PM | 1000509015 | John Rice | pellets at .64 and .93s 2nd pellet good P-mode 1 MA |
| May 9 2000 03:08:47:843PM | 1000509016 | John Rice | pellets at .64 and .93s 2 good P-modes 1 MA |
| May 9 2000 03:18:28:060PM | 1000509017 | John Rice | pellets at .64 and .93s 2 good P-modes 1 MA plasma 1 cm low |
| May 9 2000 03:40:16:640PM | 1000509018 | John Rice | pellets at .64 and .93s 1st pellet good P-mode 1 MA plasma 1 cm low |
| May 9 2000 04:17:47:310PM | 1000509019 | John Rice | pellets at .64 and .93s not the greatest P-modes 1 MA plasma centered |
| May 9 2000 04:25:25:747PM | 1000509020 | John Rice | pellet at .64 good P-mode 1 MA plasma 1 cm high disrupted |
| May 9 2000 04:55:26:263PM | 1000509021 | John Rice | pellet at .45 good P-mode 1 MA plasma centered |
| May 9 2000 05:06:42:030PM | 1000509022 | John Rice | pellet at .47 good P-mode 1 MA |
| Physics Operator Comments | |||
| May 9 2000 07:20:28:077AM | Jim Irby | Loaded shot 1000505023 from last Friday Did coldstart: rtnode -- data loaded, A matrix responds rtnode -- data loaded, M matrix responds rtnode -- data loaded, PID matrix responds RT_NODE Done | |
| May 9 2000 09:29:57:860AM | 1000509001 | Jim Irby | Alternator is not ready so we are doing no magnet cycle test. Pulsed gas is enabled so we can check gas levels at startup time. DNB gatevalve and gas should also be enabled. shot: 1000509001 Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): -2.5260 -2.5260 -2.5487 -2.5260 dIp/dt (kA/ms): 0.0011 0.0000 0.0000 -0.1272 pressure (mTorr): 0.0599 0.0599 0.0592 0.0592 Bz0 (mT): -0.0008 -0.2958 -0.3009 0.1948 Br0 (mT): -0.1313 -0.1173 -0.3565 -0.1767 Gas looks okay. |
| May 9 2000 09:43:59:280AM | 1000509002 | Jim Irby | Alternator was ready by 9:20 or so. OH test oh1: 0.8156 uohm ----------- TCs indicate a little high oh2u: 0.2293 uohm oh2l: 0.3282 uohm |
| May 9 2000 10:04:27:233AM | 1000509003 | Jim Irby | Plasma attempt Earl should have pellets at 0.64 and 0.90 seconds Plasma to rampdown Two pellets as expected OHs look good, TF looks good. |
| May 9 2000 10:20:39:733AM | 1000509004 | Jim Irby | John says just keep firing PCS repeat Disruption at 1.05 seconds, probably because of second pellet |
| May 9 2000 10:50:28:873AM | 1000509005 | Jim Irby | Repeat Lost plasma early at abt 0.5 s |
| May 9 2000 11:17:12:937AM | 1000509006 | Jim Irby | PCS Change: Made -.5 mT change to BR_0 --- hope to help the startup a little Changed Alternator Camac clock from 500 to 1500 Hz for Dave Terry. Plasma through rampdown Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): -0.4924 -10.8690 -26.4340 -96.4990 dIp/dt (kA/ms): -1.2728 -2.6694 -3.0531 -7.6299 pressure (mTorr): 0.0599 0.0606 0.0599 0.0541 Bz0 (mT): -3.5962 -1.4061 -0.3037 18.4690 Br0 (mT): -1.5125 -1.3937 -2.0830 -3.1867 Certainly got more negative Br0 |
| May 9 2000 11:40:19:937AM | 1000509007 | Jim Irby | Asking for 1 MA Ip Got current but lost plasma after first pellet: 0.93 s |
| May 9 2000 12:06:11:187PM | 1000509008 | Jim Irby | Reduced argon puff width by .025 seconds Removed TF 50 kA backporch Plasma into rampdown H-mode with just a little D-port power Lots of small injections on 2Pi diode. Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): 2.1018 -13.4859 -23.8625 -73.1515 dIp/dt (kA/ms): -1.5282 -2.7999 -2.0324 -6.2311 pressure (mTorr): 0.0592 0.0606 0.0599 0.0541 Bz0 (mT): -3.4514 -1.7374 -0.1127 18.2115 Br0 (mT): -1.4313 -1.5578 -1.5441 -3.0114 |
| May 9 2000 12:49:26:780PM | 1000509009 | Jim Irby | PCS repeat Plasma to rampdown |
| May 9 2000 12:50:28:343PM | 1000509010 | Jim Irby | PCS Repeat Plasma to rampdown J-port coming up 2 pellets |
| May 9 2000 01:39:30:140PM | 1000509011 | Jim Irby | PCS Repeat Alternator clock to 2500 Hz from 1500 Hz Plasma to rampdown |
| May 9 2000 01:46:59:513PM | 1000509012 | Jim Irby | No PCS changes Fizzle: DNB was off --- prefill level low Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): -0.4924 -13.4632 -29.0281 -21.2683 dIp/dt (kA/ms): -1.5271 -3.1780 -2.5444 0.5087 pressure (mTorr): 0.0463 0.0457 0.0452 0.0463 Bz0 (mT): -2.4636 -0.5219 0.8018 16.8732 Br0 (mT): -1.2285 -1.4613 -1.5471 -2.2056 |
| May 9 2000 02:01:37:250PM | 1000509013 | Jim Irby | No PCS changes Plasma to rampdown oh1: 0.5681 uohm oh2u: 0.2632 uohm oh2l: 0.8288 uohm Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): -0.4697 -10.8690 -29.0281 -96.4990 dIp/dt (kA/ms): -1.0184 -2.7998 -2.9259 -8.0114 pressure (mTorr): 0.0613 0.0613 0.0606 0.0560 Bz0 (mT): -2.7922 -0.4407 1.5104 18.2807 Br0 (mT): -1.3373 -1.5069 -1.9612 -3.0158 |
| May 9 2000 02:25:41:920PM | 1000509014 | Jim Irby | No PCS changes Plasma to rampdown |
| May 9 2000 02:51:51:733PM | 1000509015 | Jim Irby | No PCS changes Plasma to rampdown oh1: 0.5840 uohm oh2u: 0.1614 uohm oh2l: 0.7082 uohm Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): 2.1018 -13.4632 -23.8398 -80.9340 dIp/dt (kA/ms): -1.4021 -2.6715 -2.4139 -6.6103 pressure (mTorr): 0.0606 0.0620 0.0606 0.0573 Bz0 (mT): -2.6940 -0.5489 0.3288 18.0253 Br0 (mT): -1.1562 -1.4330 -1.7383 -2.6439 |
| May 9 2000 03:05:25:590PM | 1000509016 | Jim Irby | No PCS Changes Plasma to rampdown |
| May 9 2000 03:31:05:590PM | 1000509017 | Jim Irby | Dropped ZCUR by 1cm Plasma to rampdown Time (ms): 0 5 10 25 ---------------------------------------- Ip (kA): -0.4697 -13.4632 -26.4340 -91.2879 dIp/dt (kA/ms): -1.4011 -2.9259 -2.7965 -6.8669 pressure (mTorr): 0.0613 0.0634 0.0620 0.0579 Bz0 (mT): -2.6200 -0.9797 0.4770 17.4667 Br0 (mT): -0.6988 -1.2049 -1.7174 -2.8176 Plasma did move down approx 1 cm |
| May 9 2000 03:46:12:420PM | 1000509018 | Jim Irby | Dropped plasma another cm. Plasma to rampdown |
| May 9 2000 04:07:16:907PM | 1000509019 | Jim Irby | Reloaded 1000909016 to get back ZCUR Plasma to rampdown |
| May 9 2000 04:27:17:187PM | 1000509020 | Jim Irby | Moved ZCUR up about 1 cm. Lost plasma at 0.845 s --- z-position? oh1: 0.6211 uohm oh2u: 0.1547 uohm oh2l: 0.5455 uohm |
| May 9 2000 04:53:05:390PM | 1000509021 | Jim Irby | Loaded shot 1000509019 to reset zcur Plasma to rampdown |
| May 9 2000 05:10:56:280PM | 1000509022 | Jim Irby | Repeat Lost plasma at 0.86 s We began to see sparks from the f-bottom scanning probe on the last shot (LANL camera). |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 09:24:01:030AM | Test | Ok | Shot Cycle Test |
| 2 | 09:36:54:373AM | Test | Ok | OH Coax Test Shot |
| 3 | 09:50:00:013AM | Plasma | Ok | All power systems fired |
| 4 | 10:07:18:733AM | Plasma | Ok | |
| 5 | 10:29:09:950AM | Plasma | Ok | |
| 6 | 11:08:32:950AM | Plasma | Ok | |
| 7 | 11:31:43:140AM | Plasma | Ok | |
| 8 | 11:56:12:233AM | Plasma | Ok | |
| 9 | 12:14:15:937PM | Plasma | Ok | |
| 10 | 12:41:37:233PM | Plasma | Ok | |
| 11 | 01:05:27:640PM | Plasma | Ok | |
| 12 | 01:35:00:263PM | Plasma | Ok | |
| 13 | 01:51:55:983PM | Plasma | Ok | |
| 14 | 02:11:16:200PM | Plasma | Ok | |
| 15 | 02:33:49:467PM | Plasma | Ok | |
| 16 | 02:52:28:920PM | Plasma | Ok | |
| 17 | 03:14:21:340PM | Plasma | Ok | |
| 18 | 03:36:33:840PM | Plasma | Ok | |
| 19 | 03:57:28:513PM | Plasma | Ok | |
| 20 | 04:19:34:030PM | Plasma | Ok | |
| 21 | 04:40:59:700PM | Plasma | Ok | |
| 22 | 05:01:38:907PM | Plasma | Ok | |