Miniproposals

Miniproposal: Date Filed: Title: First Author: Session Leader: Steve Wukitch (shots 1-28)

Engineering Operator Run Comment

Purpose: RF conditioning; PO: Marmar; SL: Wukitch; EO: Dekow/Fitzgerald

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Entered: Jul 7 2004 03:49:32:040PM

Author: To Be Determined

Run Plan for Thursday, May 8, 2003 PO: Marmar SL: Wukitch Purpose: RF conditioning Engineering setup _________________ ECDC in D2 overnight prior to run. 60C bake Run starts at 9:00AM Power systems as on 1030507019, except we will not be using the C coils Gas setup: fill B-top with 6 psi of D2 Hybrid enabled (PG4) fill B-side lower with 1 psi of Ar Hybrid enabled (PG1) fill B-side upper with 10 psi of D2 Hybrid DISABLED (PG2) fill C-side with 30 psi of D2 Hybrid enabled (PG3) ICRF: Check with the session leader for transmitter setup Enable the ECE, VUV and DNB gate-valves, assuming no vacuum problems. ---------------------------------------------------------------------------- 1030508001, Plasma copied from 1030506018 001 0.8 MA, 5.4 T, nl04 = 1. x 10^20 m^-2, normal SN diverted. E: [1., 1.5] sec, .8 MW J: [0.6, 1.5], 2x0.6 MW Result: plasma. no H-mode E: 0.8 MW clean J: 0.6 MW 7 faults only J3 ran Drvr screen xbared nearly monopole phase and some heating was observed. No DVR or FPA anode voltage - motorized switch was open. Potential problem if the switch is opening due to noise on the relay coil. 002 0.8 MA, 5.4 T, nl04 = 1. x 10^20 m^-2, normal SN diverted. E: [1., 1.5] sec, 1.0 MW J: [0.6, 1.5], 2x0.6 MW Result: plasma. E: Ran. one fault. J: Ran. max faults. Both ran 003 fizzle 004 upper SN, 0.8 MA, nl04~1.0 E: 1.1 MW [1,1.5]sec J: 2x0.6 MW [0.6,1.5]sec result: plasma E: 1.1 MW clean J: 1.2 MW 9 faults 005 fizzle 006 0.8 MA, 5.4 T, nl04=1, single upper-null E: [1., 1.5] sec, 1.2 MW J: [0.6, 1.5], 2x(0.6 - 0.8) MW ramp Result: plasma. Disrupted at 1.1 sec. E: 1.2 MW clean J: 1,6 MW clean injections from J-port area 007 fizzle 008 0.8 MA, 5.4 T, nl04 = 1, single upper-null RF request: E: [1., 1.5] sec, 1.2 MW J: [0.6, 1.5], 2x*0.7 - 0.8) MW ramp Result: plasma. disrupted at 0.75. Injection from J killed the plasma ? E: - J: 1.6 MW 009 fizzle 010 0.8 MA, 5.4 T, nl04 = 1, single upper-null E: [1., 1.5] sec, 1.2 MW J: [0.6, 1.5], 2x(0.7 - 0.8) MW ramp Result: plasma. E: ran clean J: many faults. 011 0.8 MA, 5.4 T, nl04 = 1. x 10^20 m^-2, single upper-null E: [1., 1.5] sec, 1.2 MW J: [0.6, 1.5], 2x(0.7 - 0.8) MW ramp Result: plasma. E: clean J: many faults 013 0.8 MA, 5.4 T, nl04 = 1. x 10^20 m^-2, single upper-null E: [1., 1.5] sec, 1.4 MW J: [0.6, 1.5], 2x0.9 MW Result: plasma. E: 2 faults. J: 6 faults. 017 0.8 MA, 5.4 T, nl04 = 1, single upper-null E: [1., 1.5] sec, 1.3 MW J: [0.6, 1.5], 2 x 1. MW Result: plasma. E: run. 1 fault. J: run. bad matching Found the maximium units for J3 Stub tuner is only at 816 according to the PLC. However, the 'hard' limits returns to the normal number after we ran the stun up and down to the limits. As a result, the DC2 and stub fudges obtained from previous runs were incorrect, because the position of the stub tuner was incorrect. Summary: E port ran up to 1.4 MW. J port was getting better at about 1 MW level. Found J3 stub tuner PLC reported incorrect position. After running up-down to its limits, the problem went away. D port did not run with the concern on the problem with power level control. (see 1030502 entries). The RF-run stopped early due to engineering power system problem.

Physics Operator Summaries

Entered: Jul 7 2004 04:37:17:723PM

Author: To Be Determined

Physop Run Summary: Thursday, May 8, 2003 PO: Marmar SL: Wukitch Purpose: RF conditioning Engineering setup _________________ ECDC in D2 overnight prior to run. 60C bake Run starts at 9:00AM Power systems as on 1030507019, except we will not be using the C coils Gas setup: fill B-top with 6 psi of D2 Hybrid enabled (PG4) fill B-side lower with 1 psi of Ar Hybrid enabled (PG1) fill B-side upper with 10 psi of D2 Hybrid DISABLED (PG2) fill C-side with 30 psi of D2 Hybrid enabled (PG3) ICRF: Check with the session leader for transmitter setup Enable the ECE, VUV and DNB gate-valves, assuming no vacuum problems. Results: For all but the first 2 plasma shots, we ran upper single-null discharges, to keep the plasma out of H-Mode. The RF got some conditioning done, but the run was interrupted, and ultimately ended, by the occurrence of noise-induced TF inversion and noise problems on bus rogowski integrators (shots 15 and 17). We also had many fizzles. Scorecard: Plasmas 11 Fizzles 5 TF Test 1 Total 17 ----------------------------------------------------------------------------- 1030508001 marmar PHYSICS_OPERATOR May 8 2003 9:25:48:260AM . . . . . . . . . . . . . . . . . . . . load segment 1 from 1030507019 segment 2 from 1030506018 plasma; start up looks ok; ramped all the way down. ----------------------------------------------------------------------------- 1030508002 marmar PHYSICS_OPERATOR May 8 2003 9:35:29:256AM . . . . . . . . . . . . . . . . . . . . no pcs changes; plasma ----------------------------------------------------------------------------- 1030508003 marmar PHYSICS_OPERATOR May 8 2003 9:46:35:660AM . . . . . . . . . . . . . . . . . . . . no pcs changes fizzle; slow current rise ----------------------------------------------------------------------------- 1030508004 marmar PHYSICS_OPERATOR May 8 2003 10:01:16:660AM . . . . . . . . . . . . . . . . . . . . reduce prefill by 1 msec import upper null diverted shot, 1030429022, segment 3, IMPORTED INTO SEGMENT 2 plasma; earlier breakdown, good current rise ----------------------------------------------------------------------------- 1030508005 marmar PHYSICS_OPERATOR May 8 2003 10:10:21:326AM . . . . . . . . . . . . . . . . . . . . no pcs changes; fizzle Br may be slightly too positive ----------------------------------------------------------------------------- 1030508006 marmar PHYSICS_OPERATOR May 8 2003 10:27:13:923AM . . . . . . . . . . . . . . . . . . . . reduce Br offset by 0.5 mT (to 0.001 T) raise nl_04 demand to 1e20, from 8e19 plasma; disrupt at 1.1 s (during RF) Message from mdsplus@cmodws22.psfc.mit.edu Shot 1030508006: mag_flux_full.signals:f01 has a baseline offset -4.5E-02 ----------------------------------------------------------------------------- 1030508007 marmar PHYSICS_OPERATOR May 8 2003 10:36:41:716AM . . . . . . . . . . . . . . . . . . . . no pcs changes fizzle; current rise too slow relative to Bz ----------------------------------------------------------------------------- 1030508008 marmar PHYSICS_OPERATOR May 8 2003 10:57:22:706AM . . . . . . . . . . . . . . . . . . . . lower early EF3 voltage (50 volts) plasma; disrupt at 0.77; injection(s) from J-port visible on jant camera ----------------------------------------------------------------------------- 1030508009 marmar PHYSICS_OPERATOR May 8 2003 11:11:23:756AM . . . . . . . . . . . . . . . . . . . . reduce prefill by 1 msec fizzle ----------------------------------------------------------------------------- 1030508010 marmar PHYSICS_OPERATOR May 8 2003 11:23:37:050AM . . . . . . . . . . . . . . . . . . . . no pcs changes plasma got to 2.8 MW for ~75 ms ----------------------------------------------------------------------------- 1030508011 marmar PHYSICS_OPERATOR May 8 2003 11:40:25:413AM . . . . . . . . . . . . . . . . . . . . no pcs changes plasma; 2.8 MW for >300 ms ----------------------------------------------------------------------------- 1030508012 marmar PHYSICS_OPERATOR May 8 2003 11:58:39:153AM . . . . . . . . . . . . . . . . . . . . no pcs changes plasma 3 MW for most of 0.5 sec ----------------------------------------------------------------------------- 1030508013 marmar PHYSICS_OPERATOR May 8 2003 12:21:37:666PM . . . . . . . . . . . . . . . . . . . . no pcs changes plasma data system hanging after the shot. ----------------------------------------------------------------------------- 1030508014 marmar PHYSICS_OPERATOR May 8 2003 12:23:30:636PM . . . . . . . . . . . . . . . . . . . . no pcs changes fizzle; too much Bz ----------------------------------------------------------------------------- 1030508015 marmar PHYSICS_OPERATOR May 8 2003 12:49:10:213PM . . . . . . . . . . . . . . . . . . . . reduce early EF3 voltage another 50 V plasma TF tripped out at 0.9 s (went into inversion) disrupt at 1.32 s ef2l rogowski also went whacky at 0.9 s ----------------------------------------------------------------------------- 1030508016 marmar PHYSICS_OPERATOR May 8 2003 1:55:24:570PM . . . . . . . . . . . . . . . . . . . . TF test ----------------------------------------------------------------------------- 1030508017 marmar PHYSICS_OPERATOR May 8 2003 2:00:32:403PM . . . . . . . . . . . . . . . . . . . . no pcs changes plasma another TF fault various noise spikes, ef2l rogowski problems nl04 feedback goes bad at 1.08 s disrupt at 1.45 s -

Session Leader Comments
May 9 2003 11:00:52:417AM	1030508004	Steve Wukitch	004 upper SN, 0.8 MA, nl04~1.0 E: 1.1 MW [1,1.5]sec J: 2x0.6 MW [0.6,1.5]sec result: plasma E: 1.1 MW clean J: 1.2 MW 9 faults

Physics Operator Comments
May 8 2003 09:21:39:193AM		Earl Marmar	Run Plan for Thursday, May 8, 2003 PO: Marmar SL: Wukitch Purpose: RF conditioning Engineering setup _________________ ECDC in D2 overnight prior to run. 60C bake Run starts at 9:00AM Power systems as on 1030507019, except we will not be using the C coils Gas setup: fill B-top with 6 psi of D2 Hybrid enabled (PG4) fill B-side lower with 1 psi of Ar Hybrid enabled (PG1) fill B-side upper with 10 psi of D2 Hybrid DISABLED (PG2) fill C-side with 30 psi of D2 Hybrid enabled (PG3) ICRF: Check with the session leader for transmitter setup Enable the ECE, VUV and DNB gate-valves, assuming no vacuum problems.
May 8 2003 09:25:48:260AM	1030508001	Earl Marmar	load segment 1 from 1030507019 segment 2 from 1030506018 plasma; start up looks ok; ramped all the way down.
May 8 2003 09:35:29:257AM	1030508002	Earl Marmar	no pcs changes; plasma
May 8 2003 09:46:35:660AM	1030508003	Earl Marmar	no pcs changes fizzle; slow current rise
May 8 2003 10:01:16:660AM	1030508004	Earl Marmar	reduce prefill by 1 msec import upper null diverted shot, 1030429022, segment 3, IMPORTED INTO SEGMENT 2 plasma; earlier breakdown, good current rise
May 8 2003 10:10:21:327AM	1030508005	Earl Marmar	no pcs changes; fizzle Br may be slightly too positive
May 8 2003 10:27:13:923AM	1030508006	Earl Marmar	reduce Br offset by 0.5 mT (to 0.001 T) raise nl_04 demand to 1e20, from 8e19 plasma; disrupt at 1.1 s (during RF) Message from mdsplus@cmodws22.psfc.mit.edu Shot 1030508006: mag_flux_full.signals:f01 has a baseline offset -4.5E-02
May 8 2003 10:36:41:717AM	1030508007	Earl Marmar	no pcs changes fizzle; current rise too slow relative to Bz
May 8 2003 10:57:22:707AM	1030508008	Earl Marmar	lower early EF3 voltage (50 volts) plasma; disrupt at 0.77; injection(s) from J-port visible on jant camera
May 8 2003 11:11:23:757AM	1030508009	Earl Marmar	reduce prefill by 1 msec fizzle
May 8 2003 11:23:37:050AM	1030508010	Earl Marmar	no pcs changes plasma got to 2.8 MW for ~75 ms
May 8 2003 11:40:25:413AM	1030508011	Earl Marmar	no pcs changes plasma; 2.8 MW for >300 ms
May 8 2003 11:58:39:153AM	1030508012	Earl Marmar	no pcs changes plasma 3 MW for most of 0.5 sec
May 8 2003 12:21:37:667PM	1030508013	Earl Marmar	no pcs changes plasma data system hanging after the shot.
May 8 2003 12:23:30:637PM	1030508014	Earl Marmar	no pcs changes fizzle; too much Bz
May 8 2003 12:49:10:213PM	1030508015	Earl Marmar	reduce early EF3 voltage another 50 V plasma TF tripped out at 0.9 s (went into inversion) disrupt at 1.32 s ef2l rogowski also went whacky at 0.9 s
May 8 2003 01:55:24:570PM	1030508016	Earl Marmar	TF test
May 8 2003 02:00:32:403PM	1030508017	Earl Marmar	no pcs changes plasma another TF fault various noise spikes, ef2l rogowski problems nl04 feedback goes bad at 1.08 s disrupt at 1.45 s
May 8 2003 04:21:38:380PM	1030508018	Earl Marmar	cycle test
May 8 2003 04:21:57:253PM	1030508019	Earl Marmar	EF1 test
May 8 2003 04:42:35:933PM	1030508020	Earl Marmar	ef2/ef3 test
May 8 2003 04:43:29:043PM	1030508021	Earl Marmar	ef3 test

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:00:35:357AM	Plasma	Ok
2	09:25:48:820AM	Plasma	Ok
3	09:38:49:663AM	Plasma	Ok
4	09:51:31:447AM	Plasma	Ok
5	10:04:49:257AM	Plasma	Ok
6	10:17:41:413AM	Plasma	Ok
7	10:30:23:443AM	Plasma	Ok
8	10:44:09:647AM	Plasma	Ok
9	10:58:21:397AM	Plasma	Ok
10	11:15:59:730AM	Plasma	Ok
11	11:33:46:140AM	Plasma	Ok
12	11:50:26:270AM	Plasma	Ok
13	12:04:20:817PM	Plasma	Ok
14	12:19:23:287PM	Plasma	Ok
15	12:32:27:630PM	Plasma	Bad	TF Fast Ground Circuit Fired
16	01:33:23:810PM	Test	Ok	TF 50kA and EF2U-L Rog Test
17	01:46:13:903PM	Plasma	Bad	TF Type 2 and EF2 Rog Problem
18	04:09:18:317PM	Test	Ok	Camac Cycle Test
19	04:19:42:033PM	Test	Ok	EF1U and L PLC test
20	04:27:43:400PM	Test	Ok	EF2U and EF2L PLC Test
21	04:37:46:507PM	Test	Ok	EF3 PLC Test
22	04:48:34:237PM	Test	Ok	OH PLC Test
23	04:58:18:203PM	Test	Ok	EF4 PLC Test
24	05:06:42:103PM	Test	Ok	EFC PLC Test
25	05:20:20:570PM	Test	Ok	TF Scanner Test
26	05:32:40:617PM	Test	Ok	TF 50 KA PLC Test
27	05:41:25:627PM	Test	Ok	TF 100 ka PLC Test
28	06:02:48:510PM	Test	Ok	TF 150 ka Test