Miniproposals

Miniproposal: 349 Date Filed: 6/24/2003 Title: Antenna Evaluation: D-port quarter-wavelength transformers prematchingperformance and J-port Antenna First Author: Steve Wukitch Session Leader: Steve Wukitch (shots 1-19)

Engineering Operator Run Comment

MP# 349, Antenna Evaluation; PO:Irby; SL:Wukitch; EO:Dekow/Fitz

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Entered: Jul 7 2004 03:49:33:630PM

Author: Steve Wukitch

symmetric is 0,pi,pi,0 digital phase shifter is 140deg ctr-current is +90 digital phase shifter is 220deg co-current is -90deg digital phase shifter is 30deg *********************************************************************************** Engineering setup for run 1030708 in support of Miniproposal 349, Antenna Evaluation Overnight boronization to the 140 PSI level will be performed. Run begins at 10:00 to allow time for rf conditioning and ends at 17:00, or 18:00 if it can be arranged. Power system setup as on 1030509011. A-Coils should be ready to run in the same configuration as used last Thursday (103070324-28). 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 10 psi of D2 Hybrid Disabled (for ECDC) fill C-side with 30 psi of D2 Hybrid enabled The following gate valves should be enabled: ECE, VUV, DNB, Z-Bolo at K-Hor All rf transmitters should be ready to run by 07:30. Vacuum conditioning will start as soon as possible following the boronization. ECDC in D2 will be run for 20 minutes following the conditioning. *********************************************************************************** 001 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma E: ran clean J: max faults - match was still vacuum tune 002 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 003 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: early disruption 004 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: early disruption 005 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 006 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 007 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 008 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 009 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 012 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP 013 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma D: max faults - bad match E: max faults - poor match J: max faults - poor match retune 014 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: data system failure (DSF) 015 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma D: ran one fault E: max faults J: ran 1 fault 016 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma D: ran clean E: ran clean J: ran 1 fault 017 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 30deg/-90deg result: early disruption 018 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 30deg/-90deg result: plasma D: ran clean E: ran clean J: ran 1 fault 019 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: NTP Summary: Although abbreviated for a number of reasons (J-port conditioning, EF1U had a failed capacitor in its commutation cap bank, D-port had a failed cap in its Ross bottle circuit), 016 was a good L-mode comparison in [0,pi,pi,0] phasing to D and E-port at ~1.3 MW. Discharge 018 was a good comparison at -90 phasing. The [0,pi,pi,0] phase appears to heat as well as D and E while the -90deg appears slightly less efficient in temperature. More investigation is required to be more diffinitive.

Physics Operator Summaries

Entered: Jul 7 2004 04:37:18:583PM

Author: Jim Irby

Engineering setup for run 1030708 in support of MiniProposal 349, Antenna Evaluation SL: Wukitch EO: Dekow, Fitzgerald, Parkin PO: Irby This day was very painful. Besides standard problems associated with boronization recovery, we had many system problems (see below). The most serious was a failure of a capacitor in the EF1U commutation bank that cost us several shots before it was noticed, and then an hour or so to fix. We also has several discharges that lasted less than 200 ms before being killed by very impressive injections. Steve Wolfe noted that the current rise was much too fast. A change in the OH1 and OH2 crowbar times from 0.120 to 0.070 s fixed this problem, though I assume the current rise will continue to evolve as we recover from boronization. The good news is that several shots were useful for rf work, and j-port in current drive phase behaved well. Problems: EF1U commutation problem (bad cap). #1 transmitter relay/vacuum bottle problem (fixed while working on EF1U). EF2 IOC reed relay failure. Cell air conditioning unit reporting errors to MIT-PP. Lost shot 14 because of a data system hang (Josh had to reboot the server). We finished the run with a blown fuse in oh2 on shot 19. Plasmas 01,03,04,13,15,16,17,18 Fizzles 02,05,06,07,08,09,12 Tests 10,11 data system 14 power system 19 ---------------------------------------------------------------------------- 1030708xxx DEKOW DISCHARGE_CLEAN Jul 8 2003 6:19:42:623AM . . . . . . . . . . . . . . . . . . . . Boronization took place last night, starting at 5:00 pm and ending at 3:15 am this morning. 140 psi was applied with 669 psi left in the bottle of diborane after the application. EDDC in D2 was started at 3:40 am. --GLD ---------------------------------------------------------------------------- 1030708xxx irby PHYSICS_OPERATOR Jul 8 2003 7:33:43:890AM . . . . . . . . . . . . . . . . . . . . **** The machine was boronized last night (140 PSI) **** Engineering setup for run 1030708 in support of Miniproposal 349, Antenna Evaluation Overnight boronization to the 140 PSI level will be performed. Run begins at 10:00 to allow time for rf conditioning and ends at 17:00, or 18:00 if it can be arranged. Power system setup as on 1030509011. A-Coils should be ready to run in the same configuration as used last Thursday (103070324-28). 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 10 psi of D2 Hybrid Disabled (for ECDC) fill C-side with 30 psi of D2 Hybrid enabled The following gate valves should be enabled: ECE, VUV, DNB, Z-Bolo at K-Hor All rf transmitters should be ready to run by 07:30. Vacuum conditioning will start as soon as possible following the boronization. ECDC in D2 will be run for 20 minutes following the conditioning. ---------------------------------------------------------------------------- 1030708001 irby PHYSICS_OPERATOR Jul 8 2003 10:59:44:640AM . . . . . . . . . . . . . . . . . . . . Leak at G-Hor is being purged with helium Loaded shot 1030509011 into PCS --- upper null discharge nl04 to 0.8e20 / m^2 Programmed A-Coil for 0.4 s turn-on at 4 kA plasma into rampdown --- A-Coil was not on for this shot radiation is low --- h/d < 3% efit params very close to 1030509011 ---------------------------------------------------------------------------- 1030708002 irby PHYSICS_OPERATOR Jul 8 2003 11:13:25:586AM . . . . . . . . . . . . . . . . . . . . No PCS changes fizzle ---- ---------------------------------------------------------------------------- 1030708003 irby PHYSICS_OPERATOR Jul 8 2003 11:47:42:903AM . . . . . . . . . . . . . . . . . . . . Added 1 ms to gas puff, 29 to 30 ms (do something) Plasma to 0.29 s with large injection at 0.185 s. Wide2 indicates injections on shot 01 and 03 were from divertor or inner wall at H or J. Had EF2 IOC -- will not reset ---- being investigated Bill and Gary found failed reed relay in "unscheduled interlock" circuit. Removed relay as has been done on all other supplies. ---------------------------------------------------------------------------- 1030708004 irby PHYSICS_OPERATOR Jul 8 2003 12:30:31:406PM . . . . . . . . . . . . . . . . . . . . More injections --- short plasma Large early MHD activity reported by Amanda ---------------------------------------------------------------------------- 1030708005 irby PHYSICS_OPERATOR Jul 8 2003 12:25:08:396PM . . . . . . . . . . . . . . . . . . . . 50 kA fizzle will reload lower null discharge for next shot ---------------------------------------------------------------------------- 1030708006 irby PHYSICS_OPERATOR Jul 8 2003 12:44:09:230PM . . . . . . . . . . . . . . . . . . . . Loaded shot 1030703028 --- removed TF ramp ---- set nl04 to 8e19 / m^2 Pulsed gas from 30 to 31 ms Ran 10 minutes of ECDC --- waiting 20 minutes and running ecdc seemed to fix injection problem in the past. fizzle --- too much gas now! ---------------------------------------------------------------------------- 1030708007 irby PHYSICS_OPERATOR Jul 8 2003 12:57:47:600PM . . . . . . . . . . . . . . . . . . . . Cut back 2 ms on gas puff Dropped br0 by .00025 T 50 kA fizzle ---- still looks like too much gas got br0 down as requested ---------------------------------------------------------------------------- 1030708008 irby PHYSICS_OPERATOR Jul 8 2003 1:06:14:083PM . . . . . . . . . . . . . . . . . . . . Reduced gas puff by 1 more ms. fizzle --- now too little gas?? ---------------------------------------------------------------------------- 1030708009 irby PHYSICS_OPERATOR Jul 8 2003 1:43:16:250PM . . . . . . . . . . . . . . . . . . . . Added 2 ms back to gas puff (30 ms total now) another fizzle --- will break for 20 minutes of ECDC **** EF1U has not been commutating since shot 005 ***** engineers to power room for a while ---------------------------------------------------------------------------- 1030708010 irby PHYSICS_OPERATOR Jul 8 2003 2:07:29:686PM . . . . . . . . . . . . . . . . . . . . This shot will be a cycle test to check charging of EF1U bank. We have been running ECDC as work was done in the power room ---------------------------------------------------------------------------- 1030708011 irby PHYSICS_OPERATOR Jul 8 2003 3:48:36:286PM . . . . . . . . . . . . . . . . . . . . After long pause to fix EF1U commutation bank . cap replaced in ef1u bank . work done in cell as prep for high power window test scheduled for tomorrow morning . ALC2 breaker was opened so that #1 transmitter charging system could be checked/repaired Will begin with cycle test to check bank charging . charged okay Pressure looks okay ---------------------------------------------------------------------------- 1030708012 irby PHYSICS_OPERATOR Jul 8 2003 4:12:48:723PM . . . . . . . . . . . . . . . . . . . . Plasma attempt --- No PCS changes since shot 9 fizzle --- current rise looks like too much gas, but g-side indicated less pressure than on shot 01 from today or shot 28 from last thursday. ---------------------------------------------------------------------------- 1030708013 irby PHYSICS_OPERATOR Jul 8 2003 4:24:20:090PM . . . . . . . . . . . . . . . . . . . . Decreased gas by 2 ms (28 ms total) Br0 tweak removed (-.00025 back to 0.0000 T) plasma into rampdown --- note g-side pressure rose during the early part of the shot, h-alpha also high. ---------------------------------------------------------------------------- 1030708014 irby PHYSICS_OPERATOR Jul 8 2003 4:36:42:160PM . . . . . . . . . . . . . . . . . . . . No PCS changes Data system hang ---- no data, no shot Josh checking it out.. ---------------------------------------------------------------------------- 1030708015 irby PHYSICS_OPERATOR Jul 8 2003 4:56:55:556PM . . . . . . . . . . . . . . . . . . . . No PCS changes plasma into rampdown --- h-mode --- some power from all transmitters ---------------------------------------------------------------------------- 1030708016 irby PHYSICS_OPERATOR Jul 8 2003 5:06:26:920PM . . . . . . . . . . . . . . . . . . . . Need to stay out of h-mode ---- loaded shot 1030701001 ---- limited discharge nl04 request to 8e19 / m^2 plasma into rampdown --- rf looks very good ---------------------------------------------------------------------------- 1030708017 irby PHYSICS_OPERATOR Jul 8 2003 5:21:21:026PM . . . . . . . . . . . . . . . . . . . . No PCS changes plasma for .17 s --- injection kills plasma again ---------------------------------------------------------------------------- 1030708018 irby PHYSICS_OPERATOR Jul 8 2003 5:38:57:560PM . . . . . . . . . . . . . . . . . . . . We have moved OH crowbar times from 120 to 70 ms. Hope to slow down very fast current rise. Note large MHD activity early in shot also. plasma into rampdown ---- rf good ---------------------------------------------------------------------------- 1030708019 irby PHYSICS_OPERATOR Jul 8 2003 5:52:30:666PM . . . . . . . . . . . . . . . . . . . . No PCS changes no plasma ---- blown fuse in oh2 --- run is done

Session Leader Comments
Jul 8 2003 11:08:31:187AM	1030708001	Steve Wukitch	001 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma E: ran clean J: max faults - match was still vacuum tune
Jul 8 2003 11:08:44:830AM	1030708002	Steve Wukitch	002 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 11:52:40:397AM	1030708003	Steve Wukitch	003 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: early disruption
Jul 8 2003 12:33:37:803PM	1030708004	Steve Wukitch	004 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: early disruption
Jul 8 2003 12:33:50:007PM	1030708005	Steve Wukitch	005 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNU D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 12:35:58:993PM	1030708006	Steve Wukitch	006 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 01:04:59:910PM	1030708007	Steve Wukitch	007 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 01:05:13:800PM	1030708008	Steve Wukitch	008 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 04:03:07:563PM	1030708009	Steve Wukitch	009 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0 E: 0.7 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 04:10:22:343PM	1030708012	Steve Wukitch	012 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: NTP
Jul 8 2003 04:30:48:807PM	1030708013	Steve Wukitch	013 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma D: max faults - bad match E: max faults - poor match J: max faults - poor match retune
Jul 8 2003 04:40:23:497PM	1030708014	Steve Wukitch	014 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: data system failure (DSF)
Jul 8 2003 05:00:42:567PM	1030708015	Steve Wukitch	015 BT~5.4 T, Ip~0.8 MA, nl04~0.8, SNL D: 0.6 MW [1.1,1.5] sec E: 1.0 MW [1.1,1.5] sec J: 0.8 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma D: ran one fault E: max faults J: ran 1 fault
Jul 8 2003 05:46:33:170PM	1030708016	Steve Wukitch	016 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 140deg/[0,pi,pi,0] result: plasma D: ran clean E: ran clean J: ran 1 fault
Jul 8 2003 05:46:47:293PM	1030708017	Steve Wukitch	017 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 30deg/-90deg result: early disruption
Jul 8 2003 05:47:02:000PM	1030708018	Steve Wukitch	018 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 30deg/-90deg result: plasma D: ran clean E: ran clean J: ran 1 fault
Jul 8 2003 05:47:54:860PM	1030708019	Steve Wukitch	019 BT~5.4 T, Ip~0.8 MA, nl04~0.8, inner wall limited D: 0.6 MW [1.1,1.5] sec E: 0.6 MW [1.1,1.5] sec J: 1.2 MW [0.6,1] sec phase setting to 220deg/+90deg result: NTP

Physics Operator Comments
Jul 8 2003 07:33:43:890AM		Jim Irby	**** The machine was boronized last night (140 PSI) **** Engineering setup for run 1030708 in support of Miniproposal 349, Antenna Evaluation Overnight boronization to the 140 PSI level will be performed. Run begins at 10:00 to allow time for rf conditioning and ends at 17:00, or 18:00 if it can be arranged. Power system setup as on 1030509011. A-Coils should be ready to run in the same configuration as used last Thursday (103070324-28). 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 10 psi of D2 Hybrid Disabled (for ECDC) fill C-side with 30 psi of D2 Hybrid enabled The following gate valves should be enabled: ECE, VUV, DNB, Z-Bolo at K-Hor All rf transmitters should be ready to run by 07:30. Vacuum conditioning will start as soon as possible following the boronization. ECDC in D2 will be run for 20 minutes following the conditioning.
Jul 8 2003 10:59:44:640AM	1030708001	Jim Irby	Leak at G-Hor is being purged with helium Loaded shot 1030509011 into PCS --- upper null discharge nl04 to 0.8e20 / m^2 Programmed A-Coil for 0.4 s turn-on at 4 kA plasma into rampdown --- A-Coil was not on for this shot radiation is low --- h/d < 3% efit params very close to 1030509011
Jul 8 2003 11:13:25:587AM	1030708002	Jim Irby	No PCS changes fizzle ----
Jul 8 2003 11:47:42:903AM	1030708003	Jim Irby	Added 1 ms to gas puff, 29 to 30 ms (do something) Plasma to 0.29 s with large injection at 0.185 s. Wide2 indicates injections on shot 01 and 03 were from divertor or inner wall at H or J. Had EF2 IOC -- will not reset ---- being investigated Bill and Gary found failed reed relay in "unscheduled interlock" circuit. Removed relay as has been done on all other supplies.
Jul 8 2003 12:30:31:407PM	1030708004	Jim Irby	More injections --- short plasma Large early MHD activity reported by Amanda
Jul 8 2003 12:25:08:397PM	1030708005	Jim Irby	50 kA fizzle will reload lower null discharge for next shot
Jul 8 2003 12:44:09:230PM	1030708006	Jim Irby	Loaded shot 1030703028 --- removed TF ramp ---- set nl04 to 8e19 / m^2 Pulsed gas from 30 to 31 ms Ran 10 minutes of ECDC --- waiting 20 minutes and running ecdc seemed to fix injection problem in the past. fizzle --- too much gas now!
Jul 8 2003 12:57:47:600PM	1030708007	Jim Irby	Cut back 2 ms on gas puff Dropped br0 by .00025 T 50 kA fizzle ---- still looks like too much gas got br0 down as requested
Jul 8 2003 01:06:14:083PM	1030708008	Jim Irby	Reduced gas puff by 1 more ms. fizzle --- now too little gas??
Jul 8 2003 01:43:16:250PM	1030708009	Jim Irby	Added 2 ms back to gas puff (30 ms total now) another fizzle --- will break for 20 minutes of ECDC **** EF1U has not been commutating since shot 005 ***** engineers to power room for a while
Jul 8 2003 02:07:29:687PM	1030708010	Jim Irby	This shot will be a cycle test to check charging of EF1U bank. We have been running ECDC as work was done in the power room
Jul 8 2003 03:48:36:287PM	1030708011	Jim Irby	After long pause to fix EF1U commutation bank . cap replaced in ef1u bank . work done in cell as prep for high power window test scheduled for tomorrow morning . ALC2 breaker was opened so that #1 transmitter charging system could be checked/repaired Will begin with cycle test to check bank charging . charged okay Pressure looks okay
Jul 8 2003 04:12:48:723PM	1030708012	Jim Irby	Plasma attempt --- No PCS changes since shot 9 fizzle --- current rise looks like too much gas, but g-side indicated less pressure than on shot 01 from today or shot 28 from last thursday.
Jul 8 2003 04:24:20:090PM	1030708013	Jim Irby	Decreased gas by 2 ms (28 ms total) Br0 tweak removed (-.00025 back to 0.0000 T) plasma into rampdown --- note g-side pressure rose during the early part of the shot, h-alpha also high.
Jul 8 2003 04:36:42:160PM	1030708014	Jim Irby	No PCS changes Data system hang ---- no data, no shot Josh checking it out..
Jul 8 2003 04:56:55:557PM	1030708015	Jim Irby	No PCS changes plasma into rampdown --- h-mode --- some power from all transmitters
Jul 8 2003 05:06:26:920PM	1030708016	Jim Irby	Need to stay out of h-mode ---- loaded shot 1030701001 ---- limited discharge nl04 request to 8e19 / m^2 plasma into rampdown --- rf looks very good
Jul 8 2003 05:21:21:027PM	1030708017	Jim Irby	No PCS changes plasma for .17 s --- injection kills plasma again
Jul 8 2003 05:38:57:560PM	1030708018	Jim Irby	We have moved OH crowbar times from 120 to 70 ms. Hope to slow down very fast current rise. Note large MHD activity early in shot also. plasma into rampdown ---- rf good
Jul 8 2003 05:52:30:667PM	1030708019	Jim Irby	No PCS changes no plasma ---- blown fuse in oh2 --- run is done

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	10:43:31:607AM	Plasma	Ok
2	10:59:15:527AM	Plasma	Ok
3	11:14:20:633AM	Plasma	Ok
4	11:51:45:300AM	Plasma	Ok
5	12:09:44:430PM	Plasma	Ok
6	12:33:26:897PM	Plasma	Ok
7	12:46:44:267PM	Plasma	Ok
8	01:00:31:057PM	Plasma	Ok
9	01:13:29:833PM	Plasma	Ok
10	02:09:14:957PM	Test	Bad	EF1 Commutation System Test
11	03:42:08:243PM	Test	Ok	EF1 Commutation Bank Test
12	03:59:36:980PM	Plasma	Ok
13	04:14:34:413PM	Plasma	Ok
15	04:45:00:910PM	Plasma	Ok
16	04:58:44:750PM	Plasma	Ok
17	05:11:41:883PM	Plasma	Ok
18	05:26:25:910PM	Plasma	Ok
19	05:39:16:920PM	Plasma	Bad	PF breaker opened at -0.7 sec