Alcator C-Mod Run 1091113 Information

Miniproposals

Miniproposal: 583

Date Filed: 9/29/2009

Title: Optimization of mode conversion flow drive

First Author: Yijun Lin

Session Leader: Yijun Lin (shots 1-36)

Operators
Session leader(s):	Yijun Lin
Physics operator(s):	Robert Granetz
Engineering operator(s):	Andy Pfeiffer,Bill Parkin,Bill Byford

Engineering Operator Run Comment
automatically entered by signon - please replace with real comment

Session Leader Plans

Entered: Nov 12 2009 04:10:45:150PM

Author: Yijun Lin

SL-plan for Run: 1091113
MP583: Optimization of mode conversion flow drive (Day 1)
SL: Lin
PO: Granetz

Boronization: no.
ECDC in D2 overnight.
ICRF: J at 50MHz and D/E at 80 MHz.
B side-top: 15 psi He3.
B side-lower: 1 psi Ar.

Argon puff enabled for spectroscopy measurement.
He3 puff enabled starts at 0.2 sec, length specified below.

Plasma: start with 1091110017, but reduce B field to 5.1 T, USN, 0.8 MA, nl = 0.7e20 m^-2

J port waveforms: 2.5 MW, from 0.6 to 1.5 sec. with 5 programmed notches at 1.0, 1.1, 1.2, 1.3 and 1.4 sec. Each notch lasts 0.033 sec.

Step 1: Try to repeat the flow drive effect.

He3 puff 100 ms, from t= 0.2 sec. J antenna phase +90 degree.
Monitor He3 level (~0.1 a.u. in He3 monitor) (this seems to be the
best to get rotation as seen on 1091110).

Monitor HIREX rotation, FRC-ECE, and PCI.

Vary He3 shot by shot (50 ms to more than 300 ms) (or B field if necessary), until significant flow drive is observed.

Step 2: Antenna phase scan: +90, -90, dipole, one shot each.

Step 3: Add D+E port power at 1-2 MW (TBD), re-do step 2.

Step 4: Plasma shape dependence: USN, LSN, inner wall limited.

Step 5: If significant different seen in Step 3, vary triangularity, elongation, etc.

Step 6: Fine He3 scan, if not done in step 1.
Step 7: Do fine He3 scan at different B field. 4.9 T for a He3 scan, then 5.3 T for a scan.

Physics Operators Plans

Entered: Nov 12 2009 05:14:31:270PM

Author: Robert Granetz

Engineering setup for Friday 2009/11/13 MP583 - Optimization of mode conversion flow drive Session leaders: Y. Lin Physics operator: R. Granetz Overnight: usual ECDC in D2 and 60 C bake Run will start at 09:00 and end at 17:00. Power systems as on 1091110017 (5.4T, 0.8 MA, nl=0.7e20 m-2, USN), except reduce Btor to 5.1 T. A-coil configuration: +Dtop -Dbot -Jtop +Jbot; Enabled (standard configuration) Gas Setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid enabled (PG1) leave B-side upper with 15 psi He3 Hybrid enabled (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) leave NINJA as is DISABLED Enable the following gate valves and shutters, assuming no vacuum problems: ECE, VUV, Z-bolo Torvac setup: keep gate valves open during PULSE Specific diagnostics: HIREX, FRCECE, PCI ------------------------------------------------------------------------------ Boronization: no ICRF Setup: J at 50 MHz; D & E at 80 MHz LH Setup: no DNB: no Cryopump: no ------------------------------------------------------------------------------ Run plan: Start with 1091110017 (0.8 MA, USN, nl=0.7e20 m-2) but reduce Btor to 5.1 T. Program 100 ms He3 puff starting at t=0.2 s. Monitor He3 level; monitor HIREX rotation. Later in the run we will scan the antenna phasing, add in D&E, then try LSN and inner wall limited configurations. May also try varying He3 programming, and possibly vary Btor (4.9, 5.3 T).

Session Leader Summaries

Entered: Nov 15 2009 09:04:28:670PM

Author: Yijun Lin

In all, this has been a successful run.

mode conversion flow drive at 50 MHz RF and D(He3) plasma has been re-confirmed. When conditions are right (see below), the toroidal rotation can be a factor of more than 2 over the intrinsic rotation scaling.

All the plasmas were upper single plasmas. Some enters H-modes.

1. He3 dependence: (1-9) A He3 concentration scan has been performed. The flow drive efficiency is low at low He3 or high He3 concentration. The exact He3 level will be determined in further analysis.

2. B field scan(6, 12-19) shows that the most efficient drive appears when the MC layer and IC layer are close to the axis.

3. Antenna phase scan (6, 20, 23, 24): Dipole and +90 degree phases generate similar rotation, while -90 degree phase generate slower rotation, but still in co-Ip direction.

4. D+E+J, check out synergy (27-33): no synergy found. rotation seems to be linearly adding up.

5. Current scan (6, 34, 35, 36): It appears that the flow drive efficiency is higher at higher current. More experiments will be required to determine the dependence.

6. Locked mode shots 10 and 11 for calibration of rotation measurement.

Largest change of rotation achieved in L-mode: shot 33, about 105 km/s. delta W = 40 kJ. At 0.8 MA, the Rice scaling would predict about 50 km/s change.

Largest change of rotation by J port only: shot 6, 70 km/s at 2.5 MW J power. Rice scaling would predict < 20 km/s change of rotation.

Physics Operator Summaries

Entered: Nov 13 2009 05:03:23:013PM

Author: Robert Granetz

Run summary for Friday 2009/11/13 MP583 - Optimization of mode conversion flow drive Session leaders: Y. Lin Physics operator: R. Granetz The tokamak ran very well today, with only a few minor power supply glitches (OH2L, EF1U). The ICRF also ran very well, mostly J-port (50 MHz), with D & E added in late in the run day. The only real operational issue was the persistent high level of hard x-rays early in the discharge. I tried adding lots of gas by increasing the pre-fill pulse up to 36 ms, and increasing the early PG3 programming, but these don't seem to control the early density (i.e. at t=20 ms). Nearly all of the ambitious run plan was completed, including a scan of He3 concentration, a scan of toroidal field, and a scan of plasma current. Rotation measurements confirm toroidal flow drive with He3 minority heating by the 50 MHz ICRF. Scorecard: 35 plasmas 1 dud (power supply fault) 0 fizzles 0 power supply tests 0 no-power MDS shot cycles -------------- Total: 36 shot cycles

Session Leader Comments

Nov 13 2009 09:15:55:070AM 1091113001 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.1
Delta W 13 kJ
DV Hirexjr: ~ 30 km/s
DV HirexSR: had data.

Nov 13 2009 09:30:29:497AM 1091113003 Yijun Lin fizzle

Nov 13 2009 09:51:55:973AM 1091113004 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.12
Delta W 17 kJ
DV Hirexjr: no data.
DV HirexSR: had data. rotation rises faster than shot 1.

Next: 150 ms He3 puff.

Nov 13 2009 10:09:09:387AM 1091113005 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 150 ms

He3 monitor at 0.9 sec: 0.2, 0.15 at 1.2 sec.
Delta W 16 kJ
DV Hirexjr: +28 at 1, but to +50 later. Strong rotation.
DV HirexSR: Similar behavior.

(Seems I need He3 monitor at 0.15 to get the best effect).

Next: 75 ms He3 puff. Remove two notches. Let the RF run for longer.

Nov 13 2009 12:01:25:790PM 1091113006 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 150 ms

He3 monitor at 0.9 sec: 0.15
Delta W 13 kJ
DV Hirexjr: no data after 1. +30 km/s
DV HirexSR: about the same value as shot 5. (0.52/0.55)

Next: no He3 puff (there will be some residue)

Nov 13 2009 10:34:30:660AM 1091113007 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 150 ms

He3 monitor at 0.9 sec: 0.08 (~ must be near 0)
Delta W 13 kJ

big injection at 0.8 sec killed the rotation (?), seen in both Jr and Sr.

Next: 200 ms He3 puff. Also Ar 125 ms.

Nov 13 2009 10:42:23:993AM 1091113008 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 150 ms

He3 monitor at 0.9 sec: 0.3 (a lot of He3)
Delta W 15 kJ

Little rotation seen.

Next: 250 ms He3 puff. one more data point at high He3.

Nov 13 2009 10:55:00:420AM 1091113009 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 150 ms

He3 monitor at 0.9 sec: 0.6 (a lot of He3)
Delta W 20 kJ

Even smaller rotation seen.

Next: do a locked mode shot for rotation calibration.

Nov 13 2009 11:08:12:770AM 1091113010 Yijun Lin Locked mode. to disruption.
(it seems Hirex Jr has no offset)

Next: try locked mode shot again to get better data.

Nov 13 2009 11:20:26:913AM 1091113011 Yijun Lin Good locked mode shot for HIREX jr and sr.
Next: 5.6 Tesla, 100 ms He3.

Nov 13 2009 12:05:50:620PM 1091113012 Yijun Lin 5.6 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.14
Delta W 20 kJ
HIREX Jr saw counter-up rotation, but it is due to RF pickup.

data in HIREX sr. 0.4/0.32

Next: 5.4 T. same 100 ms He3

Nov 13 2009 12:05:41:337PM 1091113013 Yijun Lin 5.4 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.17
Delta W 12 kJ

Rotation 0.42/0.47

Next: 5.2 T. same 100 ms He3

Nov 13 2009 12:05:31:493PM 1091113014 Yijun Lin 5.2 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.13
Delta W 14 kJ

Rotation larger. 0.6/0.6 (peak). largest seen today.

Next: 5.0 T. same 100 ms He3

Nov 13 2009 12:13:25:607PM 1091113015 Yijun Lin Early disruption (PF supply problem?)

Nov 13 2009 12:37:35:520PM 1091113016 Yijun Lin 5.0 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.13
Delta W 16 kJ

Rotation larger. 0.57/0.57, did not droop like shot 14. Highest rotation change.

Next: 4.8 T. same 100 ms He3

Nov 13 2009 12:46:32:650PM 1091113017 Yijun Lin fizzle. power supply problem.

Nov 13 2009 01:16:44:490PM 1091113018 Yijun Lin 4.8 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.13
Delta W 16 kJ

Rotation smaller. 0.5/0.48,

Next: 4.6 T. same 100 ms He3

Nov 13 2009 01:17:32:867PM 1091113019 Yijun Lin 4.6 T, 0.8 MA, nl 0.7, USN
antenna phase +90
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.13
Delta W little.

small rotation change. about half of shot 16.

Next: 5.1 T, dipole phase. 100 ms He3.

Nov 13 2009 01:36:13:873PM 1091113020 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase: dipole
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.16
Delta W:

Rotation: 0.55/0.52, DV peak 70 km/s. av 55 km/s.

Clearly, no effect in changing phase (similar to shot 6). But do one more shot.

Next: 5.1 T, dipole (180 degree) phase, lower to 75 ms He3.

Nov 13 2009 01:43:17:140PM 1091113021 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase: dipole
He3 puff 75 ms

He3 monitor at 0.9 sec: 0.16
Delta W: 20

Rotation: 0.56/0.54, DV peak 70 km/s. av 60 km/s. Still good shot.

Next: 5.1 T, -90 degree phase, 100 ms He3.

Nov 13 2009 01:52:40:160PM 1091113022 Yijun Lin disrupted at 0.65 sec. antenna was in -90 phase.
next: try again.

Nov 13 2009 02:09:08:150PM 1091113023 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase: -90 degree
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.12
Delta W: 17

Rotation: 0.46/0.36, DV peak 50 km/s. av 50 km/s. (lower rotation).

Next: 5.1 T, -90 degree phase, 125 ms He3.

Nov 13 2009 02:20:39:810PM 1091113024 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase: -90 degree
He3 puff 100 ms

He3 monitor at 0.9 sec: 0.16
Delta W: 18

Rotation: 0.35/0.22, DV peak 40 km/s. av 27 km/s. (lower rotation, as expected).

Next: 5.1 T, D+E only. Same power as J.

Nov 13 2009 02:33:39:033PM 1091113025 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
antenna phase: -90 degree
He3 puff 125 ms

He3 monitor at 0.9 sec: 0.19
Delta W: 15

Rotation: 0.18/0.18, DV av 25 km/s. (follows Rice scaling).
(D did not run).

Next:repeat 5.1 T, D+E only.

Nov 13 2009 02:57:03:840PM 1091113026 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 2.5 MW.

He3 monitor at 0.9 sec: 0.19
Delta W: 33

Rotation: 0.63/0.6, DV pk 60, av 51 km/s. (slightly above Rice scaling). Also slower rise.

Next: 5.1 T, D+E+J. 4.MW total. No notches. J +90 phase. He3 100 ms

Nov 13 2009 03:02:56:450PM 1091113027 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 1.5 MW.
J 2.5 MW, +90 degree
He3 puff 100 ms.

He3 monitor at 0.9 sec: 0.22
Delta W: 40

Rotation: 0.79/0.78, DV pk 109, av 90 km/s. Still in L-mode.

Next: repeat, with He3 75 ms. Also make J power later.

Nov 13 2009 03:38:47:963PM 1091113027 Steve Wukitch plasma

H-modes

D/E 1.5 MW, J 2.5 MW - first RF pulse

D/E 2.5 MW, J 1.5 MW - second RF pulse

higher radiation in first RF pulse

next: increase BT to 5.6 T

Nov 13 2009 03:11:44:657PM 1091113028 Yijun Lin early disruption.

Nov 13 2009 03:33:45:807PM 1091113029 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 1.5 MW.
J 2.5 MW, +90 degree
He3 puff 75 ms.

He3 monitor at 0.9 sec: 0.12
Delta W: 42 L-mode. 55 H-mode.

Rotation: 0.86/0.89. DV 99 L-mode. 110 km/s H-mode. some H-mode.

Next: repeat, Move J later. 75 ms He3. 150 ms Ar.

Nov 13 2009 03:44:10:450PM 1091113030 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 1.5 MW.
J 2.5 MW, +90 degree
He3 puff 75 ms.

He3 monitor at 0.9 sec: 0.12
Delta W: 42 L-mode

Rotation: DV 99 L-mode (good shot)

Next: repeat, Swap J and D+E. See what happens in the rotation. same he3 puff.

Nov 13 2009 03:58:45:970PM 1091113031 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 2.5 MW.
J 1.5 MW, +90 degree
He3 puff 75 ms.

He3 monitor at 0.9 sec: 0.12
Delta W: 42 L-mode

Rotation: not clear cut comparison with shot 30.

Next: run D+E earlier at 1.5 MW, Run J 0.85sec. Raise J power to 2.8 MW. Same He3 puff.

Nov 13 2009 04:08:28:337PM 1091113032 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 1.5 MW.
J 2.5 MW, +90 degree
He3 puff 75 ms.

He3 monitor at 0.9 sec: 0.12
Delta W: 42 L-mode

Rotation: 84 L, 104 H.

Next: Lower D/E power. Ramp-up J power, to stay L-mode as long as possible.

Nov 13 2009 04:23:47:013PM 1091113033 Yijun Lin 5.1 T, 0.8 MA, nl 0.7, USN
D+E at 1.5 MW.
J 2.8 MW, +90 degree
He3 puff 75 ms.

He3 monitor at 0.9 sec: 0.12
Delta W: 39 L-mode, 52 in H-mode.

Rotation: DV 104 km/s in L-mode. No increase in H-mode.

Next: 1 MA. All other parameters the same.

Nov 13 2009 04:36:46:690PM 1091113034 Yijun Lin 5.1 T, 1.0 MA, nl 0.7, USN
J 2.5 MW, +90 degree
He3 puff 75 ms.

He3 monitor at 0.9 sec: 0.1
Delta W: 16

Rotation: 0.62/0.6, DV~60 km/s in L-mode. (Further from Rice scaling?)

Next: 0.6 MA, 75 ms He3

Nov 13 2009 04:47:26:787PM 1091113035 Yijun Lin 5.1 T, 0.6 MA, nl 0.7, USN
J 2.5 MW, +90 degree
He3 puff 100 ms.

He3 monitor at 0.9 sec: 0.22
Delta W: 11

Rotation: 0.25/0.18, DV~18 km/s. This close to Rice scaling. No improvement.
Most likely, too much He3.

Next: He3 75 ms. same current.

Nov 13 2009 05:03:18:310PM 1091113036 Yijun Lin 5.1 T, 0.6 MA, nl 0.7, USN
J 2.5 MW, +90 degree
He3 puff 100 ms.

He3 monitor at 0.9 sec: 0.22
Delta W: 11

Rotation: 0.17/0.17, DV~20 km/s. (~ Rice scaling?)
So the effect seems to be much smaller than higher current.

Next: End of run.

Physics Operator Comments

Nov 13 2009 09:07:22:550AM 1091113001 Robert Granetz
Shot 01 -- Plasma, full length. 0.8 MA, 5.1 T, 0.7-0.8e20 m-2, USN. Prf_J = 2.5 MW. Next shot: increase Ar puff to 100 ms

Nov 13 2009 09:19:22:040AM 1091113002 Robert Granetz

Shot 02 -- Plasma, disrupted at t=0.76 s due to a high-Z injection at t=0.72 s. Next shot: repeat, no changes

Nov 13 2009 09:36:12:577AM 1091113003 Robert Granetz

Shot 03 -- Plasma, but it gets snuffed out at 35 ms. Lots of early density. Maybe the walls were very gassed up after the previous disruption. Very bizarre shot. Next shot: reduce pre-fill by 2 ms

Nov 13 2009 09:51:28:037AM 1091113004 Robert Granetz

Shot 04 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Lots of early hard x-rays. Several large high-Z injection during the flattop. Prf_J = 2.5 MW. Next shot: add 2 ms back to the prefill pulse; increase He3 pulse duration to 150 ms (from 100 ms)

Nov 13 2009 10:05:28:947AM 1091113005 Robert Granetz

Shot 05 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Still lots of early runaways. Prf_J = 2.6 MW. Next shot: add another 2 ms to pre-fill pulse; cut He3 pulse duration to 75 ms

Nov 13 2009 10:19:50:203AM 1091113006 Robert Granetz

Shot 06 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Early hards, but not as much as on the previous couple of shots. Less He3 than the previous shot. Next shot: turn off He3 (turn off its enable bit); tweak early PG3 gas programming

Nov 13 2009 10:31:36:927AM 1091113007 Robert Granetz

Shot 07 -- Plasma, full length. 0.8 MA, 5.1 T, USN. No He3. Fewer early hard x-rays. Next shot: increase argon pulse to 125 ms; re-enable He3 (B-side-upper) and increase pulse to 200 ms

Nov 13 2009 10:43:06:400AM 1091113008 Robert Granetz

Shot 08 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Lots of He3. Prf_J = 2.6 MW. Next shot: increase He3 pulse to 250 ms

Nov 13 2009 11:01:45:140AM 1091113009 Robert Granetz

Shot 09 -- Plasma, full length. 0.8 MA, 5.1 T, USN, lots of He3. Prf_J = 2.6 MW. Lots of early hard x-rays. Next shot: Run a locked mode shot to calibrate HIREX-SR rotation. This entails loading a special segment (seg 3 from 1080130018) and "call"ing all the estimators. For some reason, when I did this on cmodws50 I got an error message about a missing library. However, Steve Wolfe is able to do this operation without getting an error message, so he did the DPCS programming for shot 10.

Nov 13 2009 11:08:55:190AM 1091113010 Robert Granetz

Shot 10 -- Plasma, disrupted at t=0.75 s due to a locked mode. This special DPCS programming turns the A-coil full on to purposely create the locked mode. The SL would rather have the locked plasma survive for a while before it disrupts, but we don't have a way of programming for that. Next shot: repeat, no changes

Nov 13 2009 04:39:47:707PM 1091113011 Robert Granetz

Shot 11 -- Plasma, nearly full length. Disrupts in rampdown due to locked mode which started around t=0.7 s. Next shot: set Btor to 5.6 T (adjust ECE grating accordingly); switch back to segment 2 for normal (i.e. non-locked-mode) shot; set He3 pulse to 100 ms

Nov 13 2009 11:35:59:467AM 1091113012 Robert Granetz

Shot 12 -- Plasma, full length. 0.8 MA, 5.6 T, USN. Prf_J = 2.6 MW. Early hard x-rays are almost gone on this shot. Next shot: set Btor to 5.4 T

Nov 13 2009 11:59:30:663AM 1091113013 Robert Granetz

Shot 13 -- Plasma, disrupted at t=1.01 s, but I don't see a large injection at that time. But the SL got the desired data. 5.4 T. Next shot: set Btor to 5.2 T

Nov 13 2009 12:03:08:697PM 1091113014 Robert Granetz

Shot 14 -- Plasma, full length. 0.8 MA, 5.2 T, USN. Prf_J=2.5 MW. Lots of early hard x-rays. Next shot: set Btor to 5.0 T; tweak early PG3 programming

Nov 13 2009 12:15:30:077PM 1091113015 Robert Granetz

Shot 15 -- Plasma, but disrupted at t=0.56 because OH2L crowbarred at t=0.46 s, leading to the disruption 100 ms later. Next shot: repeat, no changes

Nov 13 2009 12:41:33:943PM 1091113016 Robert Granetz

Shot 16 -- Plasma, full length. 0.8 MA, 5.0 T, USN. Prf_J = 2.6 MW. Next shot: reduce Btor to 4.8 T

Nov 13 2009 12:48:08:480PM 1091113017 Robert Granetz

Shot 17 -- Dud; EF1U switch opened at t=-0.92 s. Next shot: try again, no changes

Nov 13 2009 01:02:10:890PM 1091113018 Robert Granetz

Shot 18 -- Plasma, full length. 0.8 MA, 4.8 T, USN. Prf_J = 2.6 MW. Huge early runaway signal, even though I didn't change a thing between now and shot 16, which had a very low signal. Next shot: decrease Btor to 4.6 T

Nov 13 2009 01:17:48:100PM 1091113019 Robert Granetz

Shot 19 -- Plasma, full length. 0.8 MA, 4.6 T, USN. Prf_J = 2.5. Lots of early runaways. Next shot: raise Btor to 5.1 T

Nov 13 2009 01:29:32:447PM 1091113020 Robert Granetz

Shot 20 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf_J = 2.7 MHz. Next shot: decrease He3 pulse to 75 ms

Nov 13 2009 01:43:26:920PM 1091113021 Robert Granetz

Shot 21 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_J = 2.7 MW. Next shot: change antenna phase; increase He3 pulse back to 100 ms

Nov 13 2009 01:54:50:927PM 1091113022 Robert Granetz

Shot 22 -- Plasma, disrupted at t=0.67 s. Looks like impurity accumulation. 0.8 MA, 5.1 T, USN. The J antenna was at -90 degree phasing (had been at +90 today up until this shot). Next shot: repeat, no changes

Nov 13 2009 02:09:36:243PM 1091113023 Robert Granetz

Shot 23 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_J = 2.6 MW, -90 deg phasing. Next shot: increase He3 pulse duration to 125 ms

Nov 13 2009 02:21:55:890PM 1091113024 Robert Granetz

Shot 24 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_J = 2.7 MW, -90 phasing Next shot: turn off J-port antenna; turn on D & E antennas; leave He3 puff on

Nov 13 2009 02:33:31:473PM 1091113025 Robert Granetz

Shot 25 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_E = 1.25 MW. No power from D. J is turned off for now. Next shot: repeat to get D antenna going

Nov 13 2009 02:53:00:603PM 1091113026 Robert Granetz

Shot 26 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf = 2.4 MW (equally from D & E). J is still turned off. Next shot: turn on J (at 50 MHz), in addition to D & E; reduce He3 pulse duration to 100 ms

Nov 13 2009 03:04:14:890PM 1091113027 Robert Granetz

Shot 27 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf = 4 MW (1.5 MW from D+E, 2.5 from J) Next shot: reduce He3 pulse length to 75 ms

Nov 13 2009 03:14:59:097PM 1091113028 Robert Granetz

Shot 28 -- Plasma, but very short and disruptive, with lots of runaways. Next shot: increase pre-fill by 3 ms; tweak early PG3 programming

Nov 13 2009 03:32:12:930PM 1091113029 Robert Granetz

Shot 29 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf=4 MW. Still lots of early hard x-rays. Next shot: more early PG3 tweaking

Nov 13 2009 03:47:56:577PM 1091113030 Robert Granetz

Shot 30 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Still lots of early hard x-rays. Prf = 4.0 MW (D,E,J) Next shot: repeat, no DPCS changes, but Yijun will swap the timing of the 80 and 50 MHz systems

Nov 13 2009 03:58:33:253PM 1091113031 Robert Granetz

Shot 31 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf=4 MW (D,E,J). Still have lots of early hard x-rays. Increasing the pre-fill and the early PG3 gas input doesn't seem to affect the early density. Next shot: more PG3 tweaking

Nov 13 2009 04:11:00:023PM 1091113032 Robert Granetz

Shot 32 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf = 4.2 MW (D,E,J). Lots of early hard x-rays. Next shot: change argon pulse programming to start at t=0.35 s and end at t=0.55 s; add another 2 ms to pre-fill (will now be 34 ms)

Nov 13 2009 04:23:33:403PM 1091113033 Robert Granetz

Shot 33 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf = 3.0-4.1 MW (ramped). Still lots of early hard x-rays. Next shot: increase Ip to 1 MA; add another 2 ms to pre-fill

Nov 13 2009 04:36:28:207PM 1091113034 Robert Granetz

Shot 34 -- Plasma, full length. 1.0 MA, 5.1 T, USN, Prf_J = 2.6 MW (D & E are turned off) Next shot: set Ip to 0.6 MA; set He3 pulse duration to 100 ms

Nov 13 2009 04:49:31:240PM 1091113035 Robert Granetz

Shot 35 -- Plasma, nearly full length. 0.6 MA, 5.1 T, USN, Prf_J = 2.6 MW (D & E are off). Still lots of early hard x-rays. Next shot: set He3 pulse length to 75 ms; set argon pulse to start at t=0.30 s and end at t=0.425 s (125 ms duration)

Nov 13 2009 05:01:31:917PM 1091113036 Robert Granetz

Shot 36 -- Plasma, nearly full length. 0.6 MA, 5.1 T, USN, Prf_J = 2.6 MW (D & E are off). Early hard x-rays were down somewhat, but still pretty high. End of run

Engineering Operator Comments

Shot Time Type Status Comment

1 08:58:44:453AM Plasma Ok

2 09:12:52:757AM Plasma Ok

3 09:28:33:980AM Plasma Ok

4 09:41:07:563AM Plasma Ok

5 09:54:26:553AM Plasma Ok

6 10:08:04:760AM Plasma Ok

7 10:20:43:500AM Plasma Ok

8 10:33:40:223AM Plasma Ok

9 10:46:30:090AM Plasma Ok

10 11:00:09:470AM Plasma Ok

11 11:12:59:863AM Plasma Ok

12 11:26:10:963AM Plasma Ok

13 11:41:04:420AM Plasma Ok

14 11:55:06:240AM Plasma Ok

15 12:09:36:963PM Plasma Bad OH2L fault at 465mS

16 12:30:05:707PM Plasma Ok

17 12:43:06:807PM Plasma Bad EF1U switch opened at -0.9 sec

18 12:56:07:873PM Plasma Ok

19 01:09:33:720PM Plasma Ok

20 01:22:18:303PM Plasma Ok

21 01:35:00:903PM Plasma Ok

22 01:47:43:440PM Plasma Ok

23 02:00:50:007PM Plasma Ok

24 02:13:37:167PM Plasma Ok

25 02:27:12:030PM Plasma Ok

26 02:41:41:537PM Plasma Ok

27 02:54:31:807PM Plasma Ok

28 03:08:59:437PM Plasma Ok

29 03:22:10:490PM Plasma Ok

30 03:34:56:480PM Plasma Ok

31 03:47:40:513PM Plasma Ok

32 04:00:35:630PM Plasma Ok

33 04:13:20:197PM Plasma Ok

34 04:26:52:547PM Plasma Ok

35 04:39:52:207PM Plasma Ok

36 04:55:11:447PM Plasma Ok

System Availability

Nov 13 2009 08:58:18:983AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes 7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID-FOILS working fine. The LEDGE/DIV foils still need calibrations applied Aug 27 2009 09:09AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Nov 13 2009 06:37AM (dekow) Jim Irby Boronization dekow,irby
CNPA no Single channel CNPA available as of 12/1707 Jun 10 2009 10:22AM (twf) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Operational Nov 09 2009 09:12AM (irby) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The wide-view toroidal array was installed, spatially and absolutely calibrated. There are 7 toroidal chords intersect the beam at the major_R_range=[74.2:83.6]cm. Spatial resolution: 1.2 cm. The F-top wide-view poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[0.65:0.9.]m. Spatial resolution: 1.22 cm. Jul 09 2009 05:16PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 01 2009 09:45AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes system is aligned and operating; not yet calibrated Jul 14 2009 02:22PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation yes operational, but turned off Nov 03 2009 04:59PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no in test mode only Nov 03 2009 05:01PM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC yes Nov 09 2009 09:13AM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes All 32 channels working and calibrated. Oct 06 2009 11:17AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Controller repaired. Aug 23 2009 10:36PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no 6/10/09: Paddles meggered at 1000 v to machine ground (>300 Mohm) prior to closing the vacuum chamber. Plugs for Power Supply and Controls Unplugged and Red Tagged, Safe for In-Vessel Access Jun 10 2009 01:47PM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels operational. Jul 28 2009 04:23PM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes poses no safety hazard for people working around the machine Jun 18 2009 01:04PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Oct 27 2009 10:39AM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed and tested Jun 17 2009 11:54AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes currently only one detector is operational, off-axis He-like argon emission Jul 14 2009 10:01AM (rice) John Rice High Resolution X-Ray ince,rice
HXR no In safe mode (high voltage turned off) May 27 2008 09:19PM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes operational at 80 MHz Jul 21 2009 04:49PM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes antenna and FFT operational Jul 21 2009 04:49PM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes available at 80 MHz and [0,pi,0,pi] phasing Sep 04 2009 10:01AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes Requires some advance notice for laser start-up Oct 16 2009 12:46PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid no Breaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted. May 28 2008 09:47AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane, WB4-LY, LEDGE-LY all collecting data. WB1-LY not attached. Aug 27 2009 09:10AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Operating normally Aug 27 2009 09:10AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Recalibrated 7/27/09. Jul 28 2009 04:22PM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are on. B-bottom is not operating - bad sensor head? Jul 14 2009 09:12PM (labombard) Brian LaBombard Baratron pressure gauges labombard
MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no As of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB. Jun 10 2009 10:34AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Neutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma. Jun 10 2009 10:35AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes Power back on morning of 11/09 before run Nov 09 2009 09:10AM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA no Capillaries were tested in-vessel. Plenum has a leak and needs fixing. Jul 14 2009 09:14PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. Nov 12 2009 02:36PM (ntsujii) Miklos Porkolab Phase Contrast Imaging arai,edlund,ennever,ntsujii,porkolab
Penning Gauges yes High voltage is enabled (on during INIT, off during RECOOL). Jun 30 2009 09:42PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Checked and Operational as of 06/18/09 Jun 19 2009 08:04AM (irby) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Nov 13 2009 06:38AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Checked out and ready for Magnet Tests as of 06/18/09 Jun 19 2009 08:07AM (irby) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Array is operational with new cPCI data system. Probe 14 has open circuit. Jul 14 2009 09:17PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH no LH launcher not installed. Cables are unplugged at the A-port rack. Jul 14 2009 09:16PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Array is operational with new cPCI data system. Jul 14 2009 09:16PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Array is operational with new cPCI data system. Probe 13 has a bad cable (open). Jul 14 2009 09:17PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes Since 1091112000, 110 channel has been reinstalled. All channels are operational. Nov 12 2009 09:19AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Probe is operational. Needs plasma conditioning. Jul 14 2009 09:18PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes System connected to A-port WASP. Needs plasma testing. Jul 14 2009 09:19PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes Sparker back in operation before 11/09 run Nov 09 2009 09:11AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
TCI yes System restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma. Jun 18 2009 09:15AM (murray) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 lasers working. 15 spatial channels operational. Calibrated Oct 13 2009 07:49PM (yma) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge yes Operational, and calibrated. Oct 11 2009 03:01PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma,zhang
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO yes Operating normally Aug 27 2009 09:10AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Nov 13 2009 09:15:55:070AM	1091113001	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.1 Delta W 13 kJ DV Hirexjr: ~ 30 km/s DV HirexSR: had data.
Nov 13 2009 09:30:29:497AM	1091113003	Yijun Lin	fizzle
Nov 13 2009 09:51:55:973AM	1091113004	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.12 Delta W 17 kJ DV Hirexjr: no data. DV HirexSR: had data. rotation rises faster than shot 1. Next: 150 ms He3 puff.
Nov 13 2009 10:09:09:387AM	1091113005	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 150 ms He3 monitor at 0.9 sec: 0.2, 0.15 at 1.2 sec. Delta W 16 kJ DV Hirexjr: +28 at 1, but to +50 later. Strong rotation. DV HirexSR: Similar behavior. (Seems I need He3 monitor at 0.15 to get the best effect). Next: 75 ms He3 puff. Remove two notches. Let the RF run for longer.
Nov 13 2009 12:01:25:790PM	1091113006	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 150 ms He3 monitor at 0.9 sec: 0.15 Delta W 13 kJ DV Hirexjr: no data after 1. +30 km/s DV HirexSR: about the same value as shot 5. (0.52/0.55) Next: no He3 puff (there will be some residue)
Nov 13 2009 10:34:30:660AM	1091113007	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 150 ms He3 monitor at 0.9 sec: 0.08 (~ must be near 0) Delta W 13 kJ big injection at 0.8 sec killed the rotation (?), seen in both Jr and Sr. Next: 200 ms He3 puff. Also Ar 125 ms.
Nov 13 2009 10:42:23:993AM	1091113008	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 150 ms He3 monitor at 0.9 sec: 0.3 (a lot of He3) Delta W 15 kJ Little rotation seen. Next: 250 ms He3 puff. one more data point at high He3.
Nov 13 2009 10:55:00:420AM	1091113009	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 150 ms He3 monitor at 0.9 sec: 0.6 (a lot of He3) Delta W 20 kJ Even smaller rotation seen. Next: do a locked mode shot for rotation calibration.
Nov 13 2009 11:08:12:770AM	1091113010	Yijun Lin	Locked mode. to disruption. (it seems Hirex Jr has no offset) Next: try locked mode shot again to get better data.
Nov 13 2009 11:20:26:913AM	1091113011	Yijun Lin	Good locked mode shot for HIREX jr and sr. Next: 5.6 Tesla, 100 ms He3.
Nov 13 2009 12:05:50:620PM	1091113012	Yijun Lin	5.6 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.14 Delta W 20 kJ HIREX Jr saw counter-up rotation, but it is due to RF pickup. data in HIREX sr. 0.4/0.32 Next: 5.4 T. same 100 ms He3
Nov 13 2009 12:05:41:337PM	1091113013	Yijun Lin	5.4 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.17 Delta W 12 kJ Rotation 0.42/0.47 Next: 5.2 T. same 100 ms He3
Nov 13 2009 12:05:31:493PM	1091113014	Yijun Lin	5.2 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.13 Delta W 14 kJ Rotation larger. 0.6/0.6 (peak). largest seen today. Next: 5.0 T. same 100 ms He3
Nov 13 2009 12:13:25:607PM	1091113015	Yijun Lin	Early disruption (PF supply problem?)
Nov 13 2009 12:37:35:520PM	1091113016	Yijun Lin	5.0 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.13 Delta W 16 kJ Rotation larger. 0.57/0.57, did not droop like shot 14. Highest rotation change. Next: 4.8 T. same 100 ms He3
Nov 13 2009 12:46:32:650PM	1091113017	Yijun Lin	fizzle. power supply problem.
Nov 13 2009 01:16:44:490PM	1091113018	Yijun Lin	4.8 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.13 Delta W 16 kJ Rotation smaller. 0.5/0.48, Next: 4.6 T. same 100 ms He3
Nov 13 2009 01:17:32:867PM	1091113019	Yijun Lin	4.6 T, 0.8 MA, nl 0.7, USN antenna phase +90 He3 puff 100 ms He3 monitor at 0.9 sec: 0.13 Delta W little. small rotation change. about half of shot 16. Next: 5.1 T, dipole phase. 100 ms He3.
Nov 13 2009 01:36:13:873PM	1091113020	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase: dipole He3 puff 100 ms He3 monitor at 0.9 sec: 0.16 Delta W: Rotation: 0.55/0.52, DV peak 70 km/s. av 55 km/s. Clearly, no effect in changing phase (similar to shot 6). But do one more shot. Next: 5.1 T, dipole (180 degree) phase, lower to 75 ms He3.
Nov 13 2009 01:43:17:140PM	1091113021	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase: dipole He3 puff 75 ms He3 monitor at 0.9 sec: 0.16 Delta W: 20 Rotation: 0.56/0.54, DV peak 70 km/s. av 60 km/s. Still good shot. Next: 5.1 T, -90 degree phase, 100 ms He3.
Nov 13 2009 01:52:40:160PM	1091113022	Yijun Lin	disrupted at 0.65 sec. antenna was in -90 phase. next: try again.
Nov 13 2009 02:09:08:150PM	1091113023	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase: -90 degree He3 puff 100 ms He3 monitor at 0.9 sec: 0.12 Delta W: 17 Rotation: 0.46/0.36, DV peak 50 km/s. av 50 km/s. (lower rotation). Next: 5.1 T, -90 degree phase, 125 ms He3.
Nov 13 2009 02:20:39:810PM	1091113024	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase: -90 degree He3 puff 100 ms He3 monitor at 0.9 sec: 0.16 Delta W: 18 Rotation: 0.35/0.22, DV peak 40 km/s. av 27 km/s. (lower rotation, as expected). Next: 5.1 T, D+E only. Same power as J.
Nov 13 2009 02:33:39:033PM	1091113025	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN antenna phase: -90 degree He3 puff 125 ms He3 monitor at 0.9 sec: 0.19 Delta W: 15 Rotation: 0.18/0.18, DV av 25 km/s. (follows Rice scaling). (D did not run). Next:repeat 5.1 T, D+E only.
Nov 13 2009 02:57:03:840PM	1091113026	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 2.5 MW. He3 monitor at 0.9 sec: 0.19 Delta W: 33 Rotation: 0.63/0.6, DV pk 60, av 51 km/s. (slightly above Rice scaling). Also slower rise. Next: 5.1 T, D+E+J. 4.MW total. No notches. J +90 phase. He3 100 ms
Nov 13 2009 03:02:56:450PM	1091113027	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 1.5 MW. J 2.5 MW, +90 degree He3 puff 100 ms. He3 monitor at 0.9 sec: 0.22 Delta W: 40 Rotation: 0.79/0.78, DV pk 109, av 90 km/s. Still in L-mode. Next: repeat, with He3 75 ms. Also make J power later.
Nov 13 2009 03:38:47:963PM	1091113027	Steve Wukitch	plasma H-modes D/E 1.5 MW, J 2.5 MW - first RF pulse D/E 2.5 MW, J 1.5 MW - second RF pulse higher radiation in first RF pulse next: increase BT to 5.6 T
Nov 13 2009 03:11:44:657PM	1091113028	Yijun Lin	early disruption.
Nov 13 2009 03:33:45:807PM	1091113029	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 1.5 MW. J 2.5 MW, +90 degree He3 puff 75 ms. He3 monitor at 0.9 sec: 0.12 Delta W: 42 L-mode. 55 H-mode. Rotation: 0.86/0.89. DV 99 L-mode. 110 km/s H-mode. some H-mode. Next: repeat, Move J later. 75 ms He3. 150 ms Ar.
Nov 13 2009 03:44:10:450PM	1091113030	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 1.5 MW. J 2.5 MW, +90 degree He3 puff 75 ms. He3 monitor at 0.9 sec: 0.12 Delta W: 42 L-mode Rotation: DV 99 L-mode (good shot) Next: repeat, Swap J and D+E. See what happens in the rotation. same he3 puff.
Nov 13 2009 03:58:45:970PM	1091113031	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 2.5 MW. J 1.5 MW, +90 degree He3 puff 75 ms. He3 monitor at 0.9 sec: 0.12 Delta W: 42 L-mode Rotation: not clear cut comparison with shot 30. Next: run D+E earlier at 1.5 MW, Run J 0.85sec. Raise J power to 2.8 MW. Same He3 puff.
Nov 13 2009 04:08:28:337PM	1091113032	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 1.5 MW. J 2.5 MW, +90 degree He3 puff 75 ms. He3 monitor at 0.9 sec: 0.12 Delta W: 42 L-mode Rotation: 84 L, 104 H. Next: Lower D/E power. Ramp-up J power, to stay L-mode as long as possible.
Nov 13 2009 04:23:47:013PM	1091113033	Yijun Lin	5.1 T, 0.8 MA, nl 0.7, USN D+E at 1.5 MW. J 2.8 MW, +90 degree He3 puff 75 ms. He3 monitor at 0.9 sec: 0.12 Delta W: 39 L-mode, 52 in H-mode. Rotation: DV 104 km/s in L-mode. No increase in H-mode. Next: 1 MA. All other parameters the same.
Nov 13 2009 04:36:46:690PM	1091113034	Yijun Lin	5.1 T, 1.0 MA, nl 0.7, USN J 2.5 MW, +90 degree He3 puff 75 ms. He3 monitor at 0.9 sec: 0.1 Delta W: 16 Rotation: 0.62/0.6, DV~60 km/s in L-mode. (Further from Rice scaling?) Next: 0.6 MA, 75 ms He3
Nov 13 2009 04:47:26:787PM	1091113035	Yijun Lin	5.1 T, 0.6 MA, nl 0.7, USN J 2.5 MW, +90 degree He3 puff 100 ms. He3 monitor at 0.9 sec: 0.22 Delta W: 11 Rotation: 0.25/0.18, DV~18 km/s. This close to Rice scaling. No improvement. Most likely, too much He3. Next: He3 75 ms. same current.
Nov 13 2009 05:03:18:310PM	1091113036	Yijun Lin	5.1 T, 0.6 MA, nl 0.7, USN J 2.5 MW, +90 degree He3 puff 100 ms. He3 monitor at 0.9 sec: 0.22 Delta W: 11 Rotation: 0.17/0.17, DV~20 km/s. (~ Rice scaling?) So the effect seems to be much smaller than higher current. Next: End of run.

Physics Operator Comments
Nov 13 2009 09:07:22:550AM	1091113001	Robert Granetz	Shot 01 -- Plasma, full length. 0.8 MA, 5.1 T, 0.7-0.8e20 m-2, USN. Prf_J = 2.5 MW. Next shot: increase Ar puff to 100 ms
Nov 13 2009 09:19:22:040AM	1091113002	Robert Granetz	Shot 02 -- Plasma, disrupted at t=0.76 s due to a high-Z injection at t=0.72 s. Next shot: repeat, no changes
Nov 13 2009 09:36:12:577AM	1091113003	Robert Granetz	Shot 03 -- Plasma, but it gets snuffed out at 35 ms. Lots of early density. Maybe the walls were very gassed up after the previous disruption. Very bizarre shot. Next shot: reduce pre-fill by 2 ms
Nov 13 2009 09:51:28:037AM	1091113004	Robert Granetz	Shot 04 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Lots of early hard x-rays. Several large high-Z injection during the flattop. Prf_J = 2.5 MW. Next shot: add 2 ms back to the prefill pulse; increase He3 pulse duration to 150 ms (from 100 ms)
Nov 13 2009 10:05:28:947AM	1091113005	Robert Granetz	Shot 05 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Still lots of early runaways. Prf_J = 2.6 MW. Next shot: add another 2 ms to pre-fill pulse; cut He3 pulse duration to 75 ms
Nov 13 2009 10:19:50:203AM	1091113006	Robert Granetz	Shot 06 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Early hards, but not as much as on the previous couple of shots. Less He3 than the previous shot. Next shot: turn off He3 (turn off its enable bit); tweak early PG3 gas programming
Nov 13 2009 10:31:36:927AM	1091113007	Robert Granetz	Shot 07 -- Plasma, full length. 0.8 MA, 5.1 T, USN. No He3. Fewer early hard x-rays. Next shot: increase argon pulse to 125 ms; re-enable He3 (B-side-upper) and increase pulse to 200 ms
Nov 13 2009 10:43:06:400AM	1091113008	Robert Granetz	Shot 08 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Lots of He3. Prf_J = 2.6 MW. Next shot: increase He3 pulse to 250 ms
Nov 13 2009 11:01:45:140AM	1091113009	Robert Granetz	Shot 09 -- Plasma, full length. 0.8 MA, 5.1 T, USN, lots of He3. Prf_J = 2.6 MW. Lots of early hard x-rays. Next shot: Run a locked mode shot to calibrate HIREX-SR rotation. This entails loading a special segment (seg 3 from 1080130018) and "call"ing all the estimators. For some reason, when I did this on cmodws50 I got an error message about a missing library. However, Steve Wolfe is able to do this operation without getting an error message, so he did the DPCS programming for shot 10.
Nov 13 2009 11:08:55:190AM	1091113010	Robert Granetz	Shot 10 -- Plasma, disrupted at t=0.75 s due to a locked mode. This special DPCS programming turns the A-coil full on to purposely create the locked mode. The SL would rather have the locked plasma survive for a while before it disrupts, but we don't have a way of programming for that. Next shot: repeat, no changes
Nov 13 2009 04:39:47:707PM	1091113011	Robert Granetz	Shot 11 -- Plasma, nearly full length. Disrupts in rampdown due to locked mode which started around t=0.7 s. Next shot: set Btor to 5.6 T (adjust ECE grating accordingly); switch back to segment 2 for normal (i.e. non-locked-mode) shot; set He3 pulse to 100 ms
Nov 13 2009 11:35:59:467AM	1091113012	Robert Granetz	Shot 12 -- Plasma, full length. 0.8 MA, 5.6 T, USN. Prf_J = 2.6 MW. Early hard x-rays are almost gone on this shot. Next shot: set Btor to 5.4 T
Nov 13 2009 11:59:30:663AM	1091113013	Robert Granetz	Shot 13 -- Plasma, disrupted at t=1.01 s, but I don't see a large injection at that time. But the SL got the desired data. 5.4 T. Next shot: set Btor to 5.2 T
Nov 13 2009 12:03:08:697PM	1091113014	Robert Granetz	Shot 14 -- Plasma, full length. 0.8 MA, 5.2 T, USN. Prf_J=2.5 MW. Lots of early hard x-rays. Next shot: set Btor to 5.0 T; tweak early PG3 programming
Nov 13 2009 12:15:30:077PM	1091113015	Robert Granetz	Shot 15 -- Plasma, but disrupted at t=0.56 because OH2L crowbarred at t=0.46 s, leading to the disruption 100 ms later. Next shot: repeat, no changes
Nov 13 2009 12:41:33:943PM	1091113016	Robert Granetz	Shot 16 -- Plasma, full length. 0.8 MA, 5.0 T, USN. Prf_J = 2.6 MW. Next shot: reduce Btor to 4.8 T
Nov 13 2009 12:48:08:480PM	1091113017	Robert Granetz	Shot 17 -- Dud; EF1U switch opened at t=-0.92 s. Next shot: try again, no changes
Nov 13 2009 01:02:10:890PM	1091113018	Robert Granetz	Shot 18 -- Plasma, full length. 0.8 MA, 4.8 T, USN. Prf_J = 2.6 MW. Huge early runaway signal, even though I didn't change a thing between now and shot 16, which had a very low signal. Next shot: decrease Btor to 4.6 T
Nov 13 2009 01:17:48:100PM	1091113019	Robert Granetz	Shot 19 -- Plasma, full length. 0.8 MA, 4.6 T, USN. Prf_J = 2.5. Lots of early runaways. Next shot: raise Btor to 5.1 T
Nov 13 2009 01:29:32:447PM	1091113020	Robert Granetz	Shot 20 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf_J = 2.7 MHz. Next shot: decrease He3 pulse to 75 ms
Nov 13 2009 01:43:26:920PM	1091113021	Robert Granetz	Shot 21 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_J = 2.7 MW. Next shot: change antenna phase; increase He3 pulse back to 100 ms
Nov 13 2009 01:54:50:927PM	1091113022	Robert Granetz	Shot 22 -- Plasma, disrupted at t=0.67 s. Looks like impurity accumulation. 0.8 MA, 5.1 T, USN. The J antenna was at -90 degree phasing (had been at +90 today up until this shot). Next shot: repeat, no changes
Nov 13 2009 02:09:36:243PM	1091113023	Robert Granetz	Shot 23 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_J = 2.6 MW, -90 deg phasing. Next shot: increase He3 pulse duration to 125 ms
Nov 13 2009 02:21:55:890PM	1091113024	Robert Granetz	Shot 24 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_J = 2.7 MW, -90 phasing Next shot: turn off J-port antenna; turn on D & E antennas; leave He3 puff on
Nov 13 2009 02:33:31:473PM	1091113025	Robert Granetz	Shot 25 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf_E = 1.25 MW. No power from D. J is turned off for now. Next shot: repeat to get D antenna going
Nov 13 2009 02:53:00:603PM	1091113026	Robert Granetz	Shot 26 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf = 2.4 MW (equally from D & E). J is still turned off. Next shot: turn on J (at 50 MHz), in addition to D & E; reduce He3 pulse duration to 100 ms
Nov 13 2009 03:04:14:890PM	1091113027	Robert Granetz	Shot 27 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf = 4 MW (1.5 MW from D+E, 2.5 from J) Next shot: reduce He3 pulse length to 75 ms
Nov 13 2009 03:14:59:097PM	1091113028	Robert Granetz	Shot 28 -- Plasma, but very short and disruptive, with lots of runaways. Next shot: increase pre-fill by 3 ms; tweak early PG3 programming
Nov 13 2009 03:32:12:930PM	1091113029	Robert Granetz	Shot 29 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf=4 MW. Still lots of early hard x-rays. Next shot: more early PG3 tweaking
Nov 13 2009 03:47:56:577PM	1091113030	Robert Granetz	Shot 30 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Still lots of early hard x-rays. Prf = 4.0 MW (D,E,J) Next shot: repeat, no DPCS changes, but Yijun will swap the timing of the 80 and 50 MHz systems
Nov 13 2009 03:58:33:253PM	1091113031	Robert Granetz	Shot 31 -- Plasma, full length. 0.8 MA, 5.1 T, USN. Prf=4 MW (D,E,J). Still have lots of early hard x-rays. Increasing the pre-fill and the early PG3 gas input doesn't seem to affect the early density. Next shot: more PG3 tweaking
Nov 13 2009 04:11:00:023PM	1091113032	Robert Granetz	Shot 32 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf = 4.2 MW (D,E,J). Lots of early hard x-rays. Next shot: change argon pulse programming to start at t=0.35 s and end at t=0.55 s; add another 2 ms to pre-fill (will now be 34 ms)
Nov 13 2009 04:23:33:403PM	1091113033	Robert Granetz	Shot 33 -- Plasma, full length. 0.8 MA, 5.1 T, USN, Prf = 3.0-4.1 MW (ramped). Still lots of early hard x-rays. Next shot: increase Ip to 1 MA; add another 2 ms to pre-fill
Nov 13 2009 04:36:28:207PM	1091113034	Robert Granetz	Shot 34 -- Plasma, full length. 1.0 MA, 5.1 T, USN, Prf_J = 2.6 MW (D & E are turned off) Next shot: set Ip to 0.6 MA; set He3 pulse duration to 100 ms
Nov 13 2009 04:49:31:240PM	1091113035	Robert Granetz	Shot 35 -- Plasma, nearly full length. 0.6 MA, 5.1 T, USN, Prf_J = 2.6 MW (D & E are off). Still lots of early hard x-rays. Next shot: set He3 pulse length to 75 ms; set argon pulse to start at t=0.30 s and end at t=0.425 s (125 ms duration)
Nov 13 2009 05:01:31:917PM	1091113036	Robert Granetz	Shot 36 -- Plasma, nearly full length. 0.6 MA, 5.1 T, USN, Prf_J = 2.6 MW (D & E are off). Early hard x-rays were down somewhat, but still pretty high. End of run

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:58:44:453AM	Plasma	Ok
2	09:12:52:757AM	Plasma	Ok
3	09:28:33:980AM	Plasma	Ok
4	09:41:07:563AM	Plasma	Ok
5	09:54:26:553AM	Plasma	Ok
6	10:08:04:760AM	Plasma	Ok
7	10:20:43:500AM	Plasma	Ok
8	10:33:40:223AM	Plasma	Ok
9	10:46:30:090AM	Plasma	Ok
10	11:00:09:470AM	Plasma	Ok
11	11:12:59:863AM	Plasma	Ok
12	11:26:10:963AM	Plasma	Ok
13	11:41:04:420AM	Plasma	Ok
14	11:55:06:240AM	Plasma	Ok
15	12:09:36:963PM	Plasma	Bad	OH2L fault at 465mS
16	12:30:05:707PM	Plasma	Ok
17	12:43:06:807PM	Plasma	Bad	EF1U switch opened at -0.9 sec
18	12:56:07:873PM	Plasma	Ok
19	01:09:33:720PM	Plasma	Ok
20	01:22:18:303PM	Plasma	Ok
21	01:35:00:903PM	Plasma	Ok
22	01:47:43:440PM	Plasma	Ok
23	02:00:50:007PM	Plasma	Ok
24	02:13:37:167PM	Plasma	Ok
25	02:27:12:030PM	Plasma	Ok
26	02:41:41:537PM	Plasma	Ok
27	02:54:31:807PM	Plasma	Ok
28	03:08:59:437PM	Plasma	Ok
29	03:22:10:490PM	Plasma	Ok
30	03:34:56:480PM	Plasma	Ok
31	03:47:40:513PM	Plasma	Ok
32	04:00:35:630PM	Plasma	Ok
33	04:13:20:197PM	Plasma	Ok
34	04:26:52:547PM	Plasma	Ok
35	04:39:52:207PM	Plasma	Ok
36	04:55:11:447PM	Plasma	Ok