Alcator C-Mod Run 1091124 Information

Miniproposals

Miniproposal: 536

Date Filed: 2/21/2008

Title: Evaluation of FWEH, FWCD and MCCD

First Author: Steve Wukitch

Session Leader: Steve Wukitch (shots 20-36)

Miniproposal: 583

Date Filed: 9/29/2009

Title: Optimization of mode conversion flow drive

First Author: Yijun Lin

Session Leader: Yijun Lin (shots 1-19)

Operators
Session leader(s):	Yijun Lin,Steve Wukitch
Physics operator(s):	Ian Hutchinson
Engineering operator(s):	Sam Pierson,Bill Byford,Ed Fitzgerald

Engineering Operator Run Comment
MP583: Optimization of mode conversion flow drive (Day 3)

Session Leader Plans

Entered: Nov 23 2009 09:51:06:437PM

Author: Yijun Lin

1091124, (tuesday)
SL-plan for Run: 1091124 (morning)
MP583: Optimization of mode conversion flow drive (Day 3)
SL: Lin
PO: Hutchinson

Boronization: overnight (standard setup).

Target boronization parameters:

10% deuterated diborane/90 % helium
dP: 120 psi
TC6: 80 mTorr
rmin/rdwell/rmax: 44/52/103 cm
tdwell/tsweep: 60/120 s
Pulsar set @ .7 on/ 0.3 off
EF4 current: 0 A

Post boronization ECDC
----------------------------
1st Gas Setup:
Gas: He
sweep: 44/45/103 cm
scan: 20/120 s
Pressure: 5e-5 Torr
Duration: 2 hrs

2nd Gas Setup
Gas: D2
sweep: 44/45/103 cm
scan: 20/120 s
Pressure: 2e-4 Torr
Duration: 1 hr
-----------------------

========= First half run: MP583: mode conversion flow drive (Day 3).=====================

ICRF: J at 50MHz and D/E at 80 MHz.
B side-top: 15 psi He3.
B side-lower: 1 psi Ar.
Cryopump: required.

Main diagnostics: He3 monitor, HIREX, FRC-ECE, and PCI.

Part A (~8 shots): Plain vanilla 1 MA EDA H-mode, reload 1091118029, 1 MA, 5.1 T, raise target nl04 = 1.0e20 m^-2. To condition up the antennas and also check rotation vs. dW/Ip scaling in normal LSN EDA H-mode.

ICRF waveform: D+E @ 80 MHz, 2.0 MW from 0.6 to 1.5 sec. to get H-mode
J @ 50 MHz, 2.4 MW from 0.9 to 1.5 sec, +90 degree phase.

He3 puff: 100 ms from 0.2 sec (puff length may vary shot by shot, or add a 2nd puff later in the shot).
Ar puff: normal puff length for HIREX.

After the antennas are conditioned, run LSN EDA H-mode at 0.8 MA (target nl04=0.8e20 m^-2), and 0.6 MA (target nl04=0.6e20 m^-2).

Part B (2-3 shots): Counter-Ip rotation drive at -90 degree phase.

It has been speculated based on the result on 1091118 that -90 degree phase may drive counter-Ip flow at high power. Reload 1091118004, USN, 0.8 MA, nl = 0.8e20 m^-2, J -90 degree phase from 0.6 to 1.5 sec. 3 steps down, 2.5 MW then 1.8 MW, then 1 MW (300 ms each step). He3 puff 100 ms at 0.2 sec. If I do see counter-Ip rotation, do another shot at +90 degree with the same RF waveform.

Part C (~10 shots): Low density H-mode.

C1 (<= 3 shots): Like 1091022029, program a SSEP jog at 0.8 sec, sweep from -0.5 cm to 0.5 cm. Cryopump on. Move J power later to start at 1.0 sec. Hopefully this exercise can reduce the density level in H-mode. If not, vary upper-trianglarity, and repeat. If it fails in reducing density in three tries, goto C3.

C2 (3 shots): If low density H-mode obtained in C1, run several shots at different Ip = 1.0, 0.8, 0.6 MA using the SSEP jog. Target density will also be changed accordingly.

C3 (2 shots): Run comparison shots with -90 degree antenna phase at 1 MA (with SSEP jog and without SSEP jog).

C4 (1 shot): choose the shot with the largest rotation, modulate J power, and check out momentum transport.

Part D (5 shots): if time permits, or Part C does not work,

reload shot 1091118032, run different current and/or antenna phase. RF modulation for momentum transport study.

End of first half run (switch to MP536).

Entered: Nov 24 2009 01:17:59:230PM

Author: Steve Wukitch

-- Part II --

1. Continuation of fast wave absorption measurements

start with 1091119004

2. Using optimum conditions, modulate J power
a. Widely spaced, full power switch off
b. periodic modulation, slow compared to sawtooth period - 25%, 50%,100% power modulation
c. periodic modulation, fast compared to sawtooth period - 25%, 50%,100% power modulation

If time permits, follow up on 3He minority sawtooth pacing

start with 1091123034 - raise current to 1 MA

Scan J antenna phase +90/-90

Physics Operators Plans

Session Leader Summaries

Entered: Nov 25 2009 02:14:44:690PM

Author: Yijun Lin

SL_summary: MP583 (day 2.5).

The main goal of this part of experiment: flow drive in low density H-mode was not acomplished due to the difficulties in obtaining low density H-mode at high current. Because of the strong linkage between the plasma current and density in H-mode, we were not be able to do an (Ip/ne) scan in H-mode. Rotation increases during 50 MHz mode conversion heating, but further analysis is needed to separate the MC driven rotation from the intrinsic rotation (with large rise of plasma store energy).

Shot 10 was to verify whether we could drive counter-Ip rotation at high RF power and -90 degree phase. The rotation was clearly co-current.

Shot 18 and 19 were for RF modulation and momentum transport analysis. Strong rotation was observed in these L-mode USN shots.

Entered: Nov 25 2009 11:10:37:980PM

Author: Steve Wukitch

Part II

A successful follow up to previous FW heating experiments on 1091119 and we were able to obtain several power modulations both faster and slower than sawtooth period. These are good candidates for obtaining the electron power deposition profile. The PCI only detected fast waves so there is no residual He3 to complicate the interpretation. On 023, the FW absorption is quite good and the break-in-slope for the central ECE channels is quite obvious at the RF transition. In the last hour, we returned to the sawtooth pacing MP and developed a good discharge at 1 MA and the last shot, 036, is an interesting candidate for analysis.

Session Leader Comments

Nov 24 2009 09:09:15:667AM 1091124001 Yijun Lin shot 1: post-boronization recovery and RF antenna conditioning
1 MA, nl04=1.0, 5.1 T, LSN
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.9 to 1.5 sec, +90 degree phase.

Too much gas from the wall. neutral pressure too high for J.
Not much rotation seen by hirex.

Next: Start J earlier so that it may run at the part with lower neutral pressure (with cryopump on)

Nov 24 2009 09:24:59:277AM 1091124002 Yijun Lin post-boronization recovery and RF antenna conditioning
1 MA, nl04=1.0, 5.1 T, LSN
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.65 to 1.5 sec, +90 degree phase.

J ran a little. Still too high neutral pressure later.

Next: Start J at 0.8 sec.

Nov 24 2009 10:48:17:213AM 1091124003 Yijun Lin post-boronization recovery and RF antenna conditioning
1 MA, nl04=1.0, 5.1 T, LSN, 100 ms He3
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

No H-mode with D+E. H-mode with J. but faulted out at high neutral pressure.

result: DV 36 km/s (above L-mode scaling, lower than Rice scaling)
Rice scaling: dw/Ip ~ 70 km/s
L-mode MCFD scaling: 20*prf*ip/nl04 = 23 km/s

Next: Lower density a little to get into H-mode early.

Nov 24 2009 09:52:02:447AM 1091124004 Yijun Lin post-boronization recovery and RF antenna conditioning
1 MA, nl04=1.0, 5.1 T, LSN
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

H-mode with D/E. With J, large change in stored energy, not much in dV.

D+E: (close to Rice scaling)
result: DV 64 km/s
Rice scaling: dw/Ip ~ 57 km/s

J: (smaller than both scalings).
result: DV 13 km/s
MCFD scaling: 20*prf*ip/nl04 = 21 km/s
Rice scaling: dw/Ip ~ 28 km/s

Next: Move J to 0.85 sec. Puff He3 150 ms.

Nov 24 2009 10:47:25:853AM 1091124005 Yijun Lin 1 MA, nl04=0.8, 5.1 T, LSN, 150 ms He3
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

Same as shot 3. no H-mode with D/E.
With J, large change in stored energy, not much in dV.

D+E: (close to Rice scaling)
result: DV 18 km/s
Rice scaling: dw/Ip ~ 22 km/s

J: (entering H-mode with J. Like shot 3, dV twice L-mode MCFD scaling, lower than Rice scaling).
result: DV 48 km/s
L-mode MCFD scaling: 20*prf*ip/nl04 = 24 km/s
Rice scaling: dw/Ip ~ 90 km/s

Next: Raise D+E power to 2.5 MW to get H-mode earlier.

Nov 24 2009 10:17:26:587AM 1091124006 Yijun Lin 1 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3
D+E: 2.5 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

Short ELM-free-like H-modes with D + E. J faulted out.
D+E: (close to Rice scaling)
result: DV 55 km/s
Rice scaling: dw/Ip ~ 63 km/s

Next: Raise target density, to get EDA like H-mode.

Nov 24 2009 10:27:51:167AM 1091124007 Yijun Lin 1 MA, nl04=1.0, 5.1 T, LSN, 150 ms He3
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

Shorty H-modes.

next: 800 kA. and see if I can get longer H-mode. Lower D+E to 2 MW, J to 2 MW.

Nov 24 2009 10:45:22:980AM 1091124008 Yijun Lin 0.8 MA, nl04=0.9, 5.1 T, LSN, 150 ms He3
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.2 MW, 0.8 to 1.5 sec, +90 degree phase.

D+E: (lower than Rice scaling)
result: DV 30 km/s
Rice scaling: dw/Ip ~ 50 km/s

J: into H-mode. (close to Rice scaling?)
result: DV 42 km/s
MCFD scaling: 20*prf*ip/nl04 = 23 km/s
Rice scaling: dw/Ip ~ 40 km/s

Next: Lower Ip to 600 kA and lower target density.

Nov 24 2009 10:59:15:260AM 1091124009 Yijun Lin 0.6 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3
D+E: 2 MW, 0.6 to 1.5 sec
J: 2.2 MW, 0.8 to 1.5 sec, +90 degree phase.

disrupted at 0.95 sec.

D+E: (near Rice scaling)
result: DV 45 km/s
Rice scaling: dw/Ip ~ 43 km/s

J: into H-mode. (low rotation)
result: DV 16 km/s
L-mode MCFD scaling: 20*prf*ip/nl04 = 22 km/s
Rice scaling: dw/Ip ~ 23 km/s

No clear conclusion can be drawn.

Next: Go to Part B (check out counter Ip drive). 1091118004. USn, 0.8 MA, nl0. J -90 phase. 2.5MW -> 1.8 MW --> 1 MW. He 100 ms. (with cryopump on to have the same startup).

Nov 24 2009 11:11:10:340AM 1091124010 Yijun Lin Attempt for counter-Ip rotation at -90 phase.
No evidence on counter-Ip.

DV 43 km/s
L-mode MCFD scaling: 20*prf*ip/nl04 = 45 km/s
Rice scaling: 20 km/s
It matches the l-mode scaling, as already shown early (not much difference in antenna phase)

So the rotation reverse in shots 1091118004 et al, was most like due to plasma evolution (or He3 depletion).

Next: go to part C. With SSEP jog for density control. Comparing shot 8 today.

Nov 24 2009 11:28:32:370AM 1091124011 Yijun Lin 0.8 MA, nl04=0., 5.1 T, LSN, 100 ms He3
D+E: 2 MW, 0.6 to 1.5 sec
J: 2 MW, 0.8 to 1.5 sec, +90 degree phase.

rotation close to Rice scaling (70 km/s)
H-mode could not stay.

(not much sign that the H-mode density is lower than shot 8).

Next: raise RF power, and see if the plasma can stay in H-mode. and long EDAs.

Nov 24 2009 11:45:22:200AM 1091124012 Yijun Lin 0.8 MA, nl04=0.95, 5.1 T, LSN, 150 ms He3
D+E: 2.8 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

Rice scaling 50 km/s
DV 75 km/s. (but very complicated)l
L-mode MCFD scaling: 27 km/s.

Next: Raise target density to 1.1 and raise D/E to 2.7 MW and see if H-mode can stay.

Nov 24 2009 11:52:17:747AM 1091124013 Yijun Lin 0.8 MA, nl04=0., 5.1 T, LSN, 150 ms He3
D+E: 2.8 MW, 0.6 to 1.5 sec
J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase.

Similar to shot 12.

Rice scaling 50 km/s
DV 75 km/s. (but it is not clear cut).
L-mode MCFD scaling: 27 km/s.

Next: re-run shot 8.

Nov 24 2009 12:26:53:217PM 1091124014 Yijun Lin 0.8 MA, nl04=0., 5.1 T, LSN, 150 ms He3
D+E: 2.5 MW, 0.6 to 1.5 sec
J: 2.5 MW, 0.8 to 1.5 sec, +90 degree phase.

Similar to shot 13. (was going to lower power, but did not take. Error?)

Rice scaling 50 km/s
DV 54 km/s.
L-mode MCFD scaling: 24 km/s.

Next: repeat. with -90 degree phase.

Nov 24 2009 12:32:41:170PM 1091124015 Yijun Lin 0.8 MA, nl04=0.9, 5.1 T, LSN, 150 ms He3
D+E: 2. MW, 0.6 to 1.5 sec
J: 2.2 MW, 0.8 to 1.5 sec, -90 degree phase.

Rice scaling 45 km/s
DV 24 km/s.
L-mode MCFD scaling: 24 km/s.

compare to shot 8, rotation is smaller. So there is effect with antenna phase.

Next: re-run shot 9. 0.6 MA shot

Nov 24 2009 12:38:15:170PM 1091124016 Yijun Lin 0.6 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3
D+E: 2. MW, 0.6 to 1.5 sec
J: 2.2 MW, 0.8 to 1.5 sec, +90 degree phase.

Rice scaling 30 km/s (counted from J starting)
DV 30 km/s.
L-mode MCFD scaling: 30 km/s.

Next: repeat with -90 degree phase.

Nov 24 2009 12:51:17:747PM 1091124017 Yijun Lin 0.6 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3
D+E: 2. MW, 0.6 to 1.5 sec
J: 2.2 MW, 0.8 to 1.5 sec, -90 degree phase.

Not clear what to draw from 17 and 16. Rotation is slightly smaller than 16 (+90).

Rice scaling 20 km/s
DV 25 km/s.
L-mode MCFD scaling: 30 km/s.

Next: go to Part D, reload shot 1091118032, Ip to 0.8 MA. Modulate RF power.

Nov 24 2009 01:06:29:357PM 1091124018 Yijun Lin 0.8 MA, nl04=0.6, 5.1 T, USN, 100 ms He3
J 2.6 MW. Modulate (150 ms on, 150 ms off).

Rice scaling 25 km/s
DV 75 km/s. (about the same as the scaling from last week).
L-mode MCFD scaling: 70 km/s.

Next: repeat with -90 degree phase.

Nov 24 2009 01:18:17:153PM 1091124019 Yijun Lin 0.8 MA, nl04=0.6, 5.1 T, USN, 100 ms He3
J 2.6 MW. Modulate (150 ms on, 150 ms off).

Rice scaling 30 km/s
DV ~ 55 km/s.
L-mode MCFD scaling: 60 km/s.

So it is still true -90 drives slower rotation, and the rotation rises more slowly also. Hopefully, the last two shots are good enough for momentum transport modeling.

End of MP583, Switch to MP536

Nov 24 2009 01:31:48:527PM 1091124020 Steve Wukitch early disruption

unwanted 200 ms Ar puff

low density - looks like a locked mode

next: disable Ar, raise target density to nl04~0.7

Nov 24 2009 01:40:55:730PM 1091124021 Steve Wukitch fizzle

Nov 24 2009 02:19:17:340PM 1091124022 Steve Wukitch plasma

reasonable heating however late H-mode

overload FMIT#4

next: chase tune, improve density waveform

Nov 24 2009 02:20:08:810PM 1091124023 Steve Wukitch plasma

reasonable heating however late H-mode

early injection from J suppresses heating initially

next: raise plasma current to 1.2 MA, start modulation 18 ms period (faster than sawteeth)

Nov 24 2009 03:01:37:433PM 1091124024 Steve Wukitch plasma

radiative event ~0.9 s

RF related?

next:

Nov 24 2009 02:46:20:293PM 1091124025 Steve Wukitch plasma

Zeff_av went to 5 from 2 which is too much

neon did calm the injections

modulation was good

next: lower neon puff to 0.1 s starting at 0.55 s, modulate 2 MW with 18 ms period

Nov 24 2009 03:03:11:857PM 1091124026 Steve Wukitch plasma

Zeff_av went to 5 again

modulation was good

next: lower neon puff to 0.075 s starting at 0.575 s, modulate 1 MW with 12 ms period

Nov 24 2009 03:05:09:183PM 1091124027 Steve Wukitch early termination

no RF

Nov 24 2009 03:16:47:700PM 1091124028 Steve Wukitch early termination

no RF

Nov 24 2009 03:37:44:530PM 1091124029 Steve Wukitch plasma - 1 MA

good RF modulation with 18 ms period, 1 MW

next: decrease period to 12 ms, 1 MW

Nov 24 2009 03:52:35:903PM 1091124030 Steve Wukitch plasma

good modulation, 12 ms period, 1 MW

next: modulate with 25 ms period, 1.5 MW

Nov 24 2009 03:56:36:497PM 1091124031 Steve Wukitch early disruption

locked mode

Nov 24 2009 04:14:25:683PM 1091124032 Steve Wukitch plasma

modulation was less than perfect

next: repeat

Nov 24 2009 04:25:33:123PM 1091124033 Steve Wukitch plasma

modulation was less than perfect

next: back to He3 minority, -90deg, BT=5.6 T, 1 MA

Nov 24 2009 04:49:54:857PM 1091124034 Steve Wukitch plasma

He3 resonance crosses q=1 near 1.4 s

RF was okay but had 3 initial faults, -90deg phase

good heating despite being off axis

next: raise BT 5.7-5.9 T, no Ne puff

Nov 24 2009 04:57:47:153PM 1091124035 Steve Wukitch plasma

better alignment between He3 resonance and q=1

next: have J remain on

Nov 24 2009 05:02:54:590PM 1091124036 Steve Wukitch plasma

end of run

Physics Operator Comments

Nov 24 2009 08:48:30:133AM Ian Hutchinson Load from 1091118029. Seems to have 37ms of puff: intended for cryopump, I'd
guess, but at -.5s.
Nl04 to .9e20 at .5s. Load.

Nov 24 2009 09:16:28:057AM 1091124001 Ian Hutchinson Plasma to rampdown.

Fill puff to 44ms.

Nov 24 2009 09:29:12:290AM 1091124002 Ian Hutchinson Plasma to rampdown.

NL04 to 1e20 at .5s

Nov 24 2009 09:43:53:697AM 1091124003 Ian Hutchinson Plasma to rampdown.

Nl04 to .8e20
Move fill puff to -.3s and make 40ms.

Nov 24 2009 10:00:35:680AM 1091124004 Ian Hutchinson Plasma to rampdown.

Increase Argon to 100ms.
Increse He puff to 150ms.
Load.

Nov 24 2009 10:10:29:930AM 1091124005 Ian Hutchinson Plasma to rampdown.

Nov 24 2009 10:26:40:807AM 1091124006 Ian Hutchinson Plasma to rampdown.

NL04 to 1e20
Reduce Ar puff back to 75ms.

Nov 24 2009 10:37:28:870AM 1091124007 Ian Hutchinson Plasma to rampdown.

Ip to 0.8MA.

Nov 24 2009 10:50:44:480AM 1091124008 Ian Hutchinson Plasma to rampdown.

Raise nl04 point at .25s. Flattop to .8e20
Ip to 0.6MA.

Nov 24 2009 11:07:02:087AM 1091124009 Ian Hutchinson Plasma disrupts at .95s. Brick.

Load from 1091118004. Import segment 1 from 1091124009.
Load.

Nov 24 2009 11:17:23:357AM 1091124010 Ian Hutchinson Plasma to rampdown

Load from 1091022029
Move the zcur swing from 1s to 0.8s. These does not seem to be any other
programming that does ssep control.
nl04 to 1.e20. Load.
Import seg 1 from shot 9. Load.

Nov 24 2009 11:36:52:717AM 1091124011 Ian Hutchinson Plasma to rampdown.

Fill puff to 50ms.
He3 puff to 150ms from 100ms. Load.

Nov 24 2009 11:47:38:107AM 1091124012 Ian Hutchinson Plasma to rampdown.

nl04 to 1.1e20

Nov 24 2009 12:05:26:480PM 1091124013 Ian Hutchinson Plasma to rampdown.

Reload shot 8. Import seg 1 from shot 13. Load.

Nov 24 2009 12:17:17:590PM 1091124014 Ian Hutchinson Plasma to rampdown.

Nov 24 2009 12:30:17:670PM 1091124015 Ian Hutchinson Plasma to rampdown.

Load from shot 9. Import segment 1 from 15. Load.

Nov 24 2009 12:48:25:997PM 1091124016 Ian Hutchinson Plasma to rampdown.

Nov 24 2009 12:59:14:027PM 1091124017 Ian Hutchinson Plasma to rampdown.

Load from 1091118032. Import seg 1 from shot 17.
Set Ip to 0.8MA.

Nov 24 2009 01:14:34:230PM 1091124018 Ian Hutchinson Plasma to rampdown.

Nov 24 2009 01:26:11:217PM 1091124019 Ian Hutchinson Plasma to rampdown.

Move to second half of the day:
Load from 1091117004. Load.
I am told that's the wrong shot. Load from 1091119004. Load.

Nov 24 2009 01:40:11:903PM 1091124020 Ian Hutchinson Plasma disrupts at .66s.

Turn off Argon. Raise nl04 to .7e20
Lower fill puff to 35ms.

Nov 24 2009 01:51:58:950PM 1091124021 Ian Hutchinson Fizzle.

Fill puff to 25ms.

Nov 24 2009 02:06:12:183PM 1091124022 Ian Hutchinson Plasma to rampdown.

Nov 24 2009 02:17:31:513PM 1091124023 Ian Hutchinson Plasma to rampdown.

Fill puff to 30ms. Ip to 1.2MA.

Nov 24 2009 02:33:30:467PM 1091124024 Ian Hutchinson Plasma to .88s. Big injection.

Fill puff to 20ms.
Purge Ar from B-side lower and fill with 2psi of Neon.
Add 150ms puff of Neon at .5s

Nov 24 2009 02:53:04:527PM 1091124025 Ian Hutchinson Plasma to 1.74s.

Fill puff back to 30ms.
Neon puff to 100ms.

Nov 24 2009 03:02:18:107PM 1091124026 Ian Hutchinson Plasma to 1.64s.

Neon puff to 75ms.

Nov 24 2009 03:16:13:013PM 1091124027 Ian Hutchinson Plasma disrupts at .43s

Ip to 1MA.
Fill puff to 25ms.

Nov 24 2009 03:28:45:780PM 1091124028 Ian Hutchinson Plasma disrupts at .5s

Increase clearin.
Change b21proj to have -2.20880e-08 for ef3l coefficient from -1.2...

Nov 24 2009 03:42:43:357PM 1091124029 Ian Hutchinson Plasma to 1.68s

Delay the rcur ramp end to .5s
Increase clearin.
Fill puff to 30ms.

Nov 24 2009 03:54:04:793PM 1091124030 Ian Hutchinson Plasma.

Fill puff to 34ms.

Nov 24 2009 04:09:13:967PM 1091124031 Ian Hutchinson Plasma disrupts at .44s. On examination all the shots that disrupt relatively
early appear to have very small sawteeth typical of locked modes.

Move start of A-coil to .1s
Put fill puff to 30ms.

Nov 24 2009 04:19:11:543PM 1091124032 Ian Hutchinson Plasma.

Fill puff to 35ms.

Nov 24 2009 04:39:03:137PM 1091124033 Ian Hutchinson Plasma.

Import seg 2 from 1091123034 to seg 4. Grab TF trace and put in seg 2.
Increase the b21proj EF3l term to -3.2

Install He3 puff .4s 60ms.

Nov 24 2009 04:48:39:200PM 1091124034 Ian Hutchinson Plasma.

Slow TF ramp rate. Raise max TF current 2%.
Remove Ne puff.

Nov 24 2009 05:05:21:497PM 1091124035 Ian Hutchinson Plasma to rampdown.

b21proj back to 1.2..

Nov 24 2009 05:05:31:933PM 1091124036 Ian Hutchinson Plasma to rampdown.

Engineering Operator Comments

Shot Time Type Status Comment

1 08:58:54:450AM Plasma Ok

2 09:14:33:557AM Plasma Ok

3 09:27:18:540AM Plasma Ok

4 09:41:13:463AM Plasma Ok

5 09:53:42:667AM Plasma Ok

6 10:08:05:777AM Plasma Ok

7 10:20:43:837AM Plasma Ok

8 10:35:05:730AM Plasma Ok

9 10:48:43:103AM Plasma Ok

10 11:01:52:673AM Plasma Ok

11 11:15:44:887AM Plasma Ok

12 11:32:54:277AM Plasma Ok

13 11:45:45:903AM Plasma Ok

14 11:58:48:403AM Plasma Ok

15 12:13:15:980PM Plasma Ok

16 12:27:59:530PM Plasma Ok

17 12:42:25:763PM Plasma Ok

18 12:57:24:310PM Plasma Ok

19 01:10:50:403PM Plasma Ok

20 01:24:10:560PM Plasma Ok

21 01:37:10:310PM Plasma Ok

22 01:50:01:527PM Plasma Ok

23 02:02:49:527PM Plasma Ok

24 02:15:31:263PM Plasma Ok

25 02:31:15:077PM Plasma Ok

26 02:47:07:543PM Plasma Ok

27 03:00:02:060PM Plasma Ok

28 03:13:58:327PM Plasma Ok

29 03:26:38:920PM Plasma Ok

30 03:39:15:890PM Plasma Ok

31 03:51:52:217PM Plasma Ok

32 04:04:33:120PM Plasma Ok

33 04:17:14:170PM Plasma Ok

34 04:34:01:840PM Plasma Ok

35 04:46:41:277PM Plasma Ok

36 05:01:05:870PM Plasma Ok

System Availability

Nov 24 2009 08:58:32:917AM

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 24 2009 09:09:15:667AM	1091124001	Yijun Lin	shot 1: post-boronization recovery and RF antenna conditioning 1 MA, nl04=1.0, 5.1 T, LSN D+E: 2 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.9 to 1.5 sec, +90 degree phase. Too much gas from the wall. neutral pressure too high for J. Not much rotation seen by hirex. Next: Start J earlier so that it may run at the part with lower neutral pressure (with cryopump on)
Nov 24 2009 09:24:59:277AM	1091124002	Yijun Lin	post-boronization recovery and RF antenna conditioning 1 MA, nl04=1.0, 5.1 T, LSN D+E: 2 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.65 to 1.5 sec, +90 degree phase. J ran a little. Still too high neutral pressure later. Next: Start J at 0.8 sec.
Nov 24 2009 10:48:17:213AM	1091124003	Yijun Lin	post-boronization recovery and RF antenna conditioning 1 MA, nl04=1.0, 5.1 T, LSN, 100 ms He3 D+E: 2 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. No H-mode with D+E. H-mode with J. but faulted out at high neutral pressure. result: DV 36 km/s (above L-mode scaling, lower than Rice scaling) Rice scaling: dw/Ip ~ 70 km/s L-mode MCFD scaling: 20prfip/nl04 = 23 km/s Next: Lower density a little to get into H-mode early.
Nov 24 2009 09:52:02:447AM	1091124004	Yijun Lin	post-boronization recovery and RF antenna conditioning 1 MA, nl04=1.0, 5.1 T, LSN D+E: 2 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. H-mode with D/E. With J, large change in stored energy, not much in dV. D+E: (close to Rice scaling) result: DV 64 km/s Rice scaling: dw/Ip ~ 57 km/s J: (smaller than both scalings). result: DV 13 km/s MCFD scaling: 20prfip/nl04 = 21 km/s Rice scaling: dw/Ip ~ 28 km/s Next: Move J to 0.85 sec. Puff He3 150 ms.
Nov 24 2009 10:47:25:853AM	1091124005	Yijun Lin	1 MA, nl04=0.8, 5.1 T, LSN, 150 ms He3 D+E: 2 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. Same as shot 3. no H-mode with D/E. With J, large change in stored energy, not much in dV. D+E: (close to Rice scaling) result: DV 18 km/s Rice scaling: dw/Ip ~ 22 km/s J: (entering H-mode with J. Like shot 3, dV twice L-mode MCFD scaling, lower than Rice scaling). result: DV 48 km/s L-mode MCFD scaling: 20prfip/nl04 = 24 km/s Rice scaling: dw/Ip ~ 90 km/s Next: Raise D+E power to 2.5 MW to get H-mode earlier.
Nov 24 2009 10:17:26:587AM	1091124006	Yijun Lin	1 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3 D+E: 2.5 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. Short ELM-free-like H-modes with D + E. J faulted out. D+E: (close to Rice scaling) result: DV 55 km/s Rice scaling: dw/Ip ~ 63 km/s Next: Raise target density, to get EDA like H-mode.
Nov 24 2009 10:27:51:167AM	1091124007	Yijun Lin	1 MA, nl04=1.0, 5.1 T, LSN, 150 ms He3 D+E: 2 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. Shorty H-modes. next: 800 kA. and see if I can get longer H-mode. Lower D+E to 2 MW, J to 2 MW.
Nov 24 2009 10:45:22:980AM	1091124008	Yijun Lin	0.8 MA, nl04=0.9, 5.1 T, LSN, 150 ms He3 D+E: 2 MW, 0.6 to 1.5 sec J: 2.2 MW, 0.8 to 1.5 sec, +90 degree phase. D+E: (lower than Rice scaling) result: DV 30 km/s Rice scaling: dw/Ip ~ 50 km/s J: into H-mode. (close to Rice scaling?) result: DV 42 km/s MCFD scaling: 20prfip/nl04 = 23 km/s Rice scaling: dw/Ip ~ 40 km/s Next: Lower Ip to 600 kA and lower target density.
Nov 24 2009 10:59:15:260AM	1091124009	Yijun Lin	0.6 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3 D+E: 2 MW, 0.6 to 1.5 sec J: 2.2 MW, 0.8 to 1.5 sec, +90 degree phase. disrupted at 0.95 sec. D+E: (near Rice scaling) result: DV 45 km/s Rice scaling: dw/Ip ~ 43 km/s J: into H-mode. (low rotation) result: DV 16 km/s L-mode MCFD scaling: 20prfip/nl04 = 22 km/s Rice scaling: dw/Ip ~ 23 km/s No clear conclusion can be drawn. Next: Go to Part B (check out counter Ip drive). 1091118004. USn, 0.8 MA, nl0. J -90 phase. 2.5MW -> 1.8 MW --> 1 MW. He 100 ms. (with cryopump on to have the same startup).
Nov 24 2009 11:11:10:340AM	1091124010	Yijun Lin	Attempt for counter-Ip rotation at -90 phase. No evidence on counter-Ip. DV 43 km/s L-mode MCFD scaling: 20prfip/nl04 = 45 km/s Rice scaling: 20 km/s It matches the l-mode scaling, as already shown early (not much difference in antenna phase) So the rotation reverse in shots 1091118004 et al, was most like due to plasma evolution (or He3 depletion). Next: go to part C. With SSEP jog for density control. Comparing shot 8 today.
Nov 24 2009 11:28:32:370AM	1091124011	Yijun Lin	0.8 MA, nl04=0., 5.1 T, LSN, 100 ms He3 D+E: 2 MW, 0.6 to 1.5 sec J: 2 MW, 0.8 to 1.5 sec, +90 degree phase. rotation close to Rice scaling (70 km/s) H-mode could not stay. (not much sign that the H-mode density is lower than shot 8). Next: raise RF power, and see if the plasma can stay in H-mode. and long EDAs.
Nov 24 2009 11:45:22:200AM	1091124012	Yijun Lin	0.8 MA, nl04=0.95, 5.1 T, LSN, 150 ms He3 D+E: 2.8 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. Rice scaling 50 km/s DV 75 km/s. (but very complicated)l L-mode MCFD scaling: 27 km/s. Next: Raise target density to 1.1 and raise D/E to 2.7 MW and see if H-mode can stay.
Nov 24 2009 11:52:17:747AM	1091124013	Yijun Lin	0.8 MA, nl04=0., 5.1 T, LSN, 150 ms He3 D+E: 2.8 MW, 0.6 to 1.5 sec J: 2.4 MW, 0.8 to 1.5 sec, +90 degree phase. Similar to shot 12. Rice scaling 50 km/s DV 75 km/s. (but it is not clear cut). L-mode MCFD scaling: 27 km/s. Next: re-run shot 8.
Nov 24 2009 12:26:53:217PM	1091124014	Yijun Lin	0.8 MA, nl04=0., 5.1 T, LSN, 150 ms He3 D+E: 2.5 MW, 0.6 to 1.5 sec J: 2.5 MW, 0.8 to 1.5 sec, +90 degree phase. Similar to shot 13. (was going to lower power, but did not take. Error?) Rice scaling 50 km/s DV 54 km/s. L-mode MCFD scaling: 24 km/s. Next: repeat. with -90 degree phase.
Nov 24 2009 12:32:41:170PM	1091124015	Yijun Lin	0.8 MA, nl04=0.9, 5.1 T, LSN, 150 ms He3 D+E: 2. MW, 0.6 to 1.5 sec J: 2.2 MW, 0.8 to 1.5 sec, -90 degree phase. Rice scaling 45 km/s DV 24 km/s. L-mode MCFD scaling: 24 km/s. compare to shot 8, rotation is smaller. So there is effect with antenna phase. Next: re-run shot 9. 0.6 MA shot
Nov 24 2009 12:38:15:170PM	1091124016	Yijun Lin	0.6 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3 D+E: 2. MW, 0.6 to 1.5 sec J: 2.2 MW, 0.8 to 1.5 sec, +90 degree phase. Rice scaling 30 km/s (counted from J starting) DV 30 km/s. L-mode MCFD scaling: 30 km/s. Next: repeat with -90 degree phase.
Nov 24 2009 12:51:17:747PM	1091124017	Yijun Lin	0.6 MA, nl04=0.7, 5.1 T, LSN, 150 ms He3 D+E: 2. MW, 0.6 to 1.5 sec J: 2.2 MW, 0.8 to 1.5 sec, -90 degree phase. Not clear what to draw from 17 and 16. Rotation is slightly smaller than 16 (+90). Rice scaling 20 km/s DV 25 km/s. L-mode MCFD scaling: 30 km/s. Next: go to Part D, reload shot 1091118032, Ip to 0.8 MA. Modulate RF power.
Nov 24 2009 01:06:29:357PM	1091124018	Yijun Lin	0.8 MA, nl04=0.6, 5.1 T, USN, 100 ms He3 J 2.6 MW. Modulate (150 ms on, 150 ms off). Rice scaling 25 km/s DV 75 km/s. (about the same as the scaling from last week). L-mode MCFD scaling: 70 km/s. Next: repeat with -90 degree phase.
Nov 24 2009 01:18:17:153PM	1091124019	Yijun Lin	0.8 MA, nl04=0.6, 5.1 T, USN, 100 ms He3 J 2.6 MW. Modulate (150 ms on, 150 ms off). Rice scaling 30 km/s DV ~ 55 km/s. L-mode MCFD scaling: 60 km/s. So it is still true -90 drives slower rotation, and the rotation rises more slowly also. Hopefully, the last two shots are good enough for momentum transport modeling. End of MP583, Switch to MP536
Nov 24 2009 01:31:48:527PM	1091124020	Steve Wukitch	early disruption unwanted 200 ms Ar puff low density - looks like a locked mode next: disable Ar, raise target density to nl04~0.7
Nov 24 2009 01:40:55:730PM	1091124021	Steve Wukitch	fizzle
Nov 24 2009 02:19:17:340PM	1091124022	Steve Wukitch	plasma reasonable heating however late H-mode overload FMIT#4 next: chase tune, improve density waveform
Nov 24 2009 02:20:08:810PM	1091124023	Steve Wukitch	plasma reasonable heating however late H-mode early injection from J suppresses heating initially next: raise plasma current to 1.2 MA, start modulation 18 ms period (faster than sawteeth)
Nov 24 2009 03:01:37:433PM	1091124024	Steve Wukitch	plasma radiative event ~0.9 s RF related? next:
Nov 24 2009 02:46:20:293PM	1091124025	Steve Wukitch	plasma Zeff_av went to 5 from 2 which is too much neon did calm the injections modulation was good next: lower neon puff to 0.1 s starting at 0.55 s, modulate 2 MW with 18 ms period
Nov 24 2009 03:03:11:857PM	1091124026	Steve Wukitch	plasma Zeff_av went to 5 again modulation was good next: lower neon puff to 0.075 s starting at 0.575 s, modulate 1 MW with 12 ms period
Nov 24 2009 03:05:09:183PM	1091124027	Steve Wukitch	early termination no RF
Nov 24 2009 03:16:47:700PM	1091124028	Steve Wukitch	early termination no RF
Nov 24 2009 03:37:44:530PM	1091124029	Steve Wukitch	plasma - 1 MA good RF modulation with 18 ms period, 1 MW next: decrease period to 12 ms, 1 MW
Nov 24 2009 03:52:35:903PM	1091124030	Steve Wukitch	plasma good modulation, 12 ms period, 1 MW next: modulate with 25 ms period, 1.5 MW
Nov 24 2009 03:56:36:497PM	1091124031	Steve Wukitch	early disruption locked mode
Nov 24 2009 04:14:25:683PM	1091124032	Steve Wukitch	plasma modulation was less than perfect next: repeat
Nov 24 2009 04:25:33:123PM	1091124033	Steve Wukitch	plasma modulation was less than perfect next: back to He3 minority, -90deg, BT=5.6 T, 1 MA
Nov 24 2009 04:49:54:857PM	1091124034	Steve Wukitch	plasma He3 resonance crosses q=1 near 1.4 s RF was okay but had 3 initial faults, -90deg phase good heating despite being off axis next: raise BT 5.7-5.9 T, no Ne puff
Nov 24 2009 04:57:47:153PM	1091124035	Steve Wukitch	plasma better alignment between He3 resonance and q=1 next: have J remain on
Nov 24 2009 05:02:54:590PM	1091124036	Steve Wukitch	plasma end of run

Physics Operator Comments
Nov 24 2009 08:48:30:133AM		Ian Hutchinson	Load from 1091118029. Seems to have 37ms of puff: intended for cryopump, I'd guess, but at -.5s. Nl04 to .9e20 at .5s. Load.
Nov 24 2009 09:16:28:057AM	1091124001	Ian Hutchinson	Plasma to rampdown. Fill puff to 44ms.
Nov 24 2009 09:29:12:290AM	1091124002	Ian Hutchinson	Plasma to rampdown. NL04 to 1e20 at .5s
Nov 24 2009 09:43:53:697AM	1091124003	Ian Hutchinson	Plasma to rampdown. Nl04 to .8e20 Move fill puff to -.3s and make 40ms.
Nov 24 2009 10:00:35:680AM	1091124004	Ian Hutchinson	Plasma to rampdown. Increase Argon to 100ms. Increse He puff to 150ms. Load.
Nov 24 2009 10:10:29:930AM	1091124005	Ian Hutchinson	Plasma to rampdown.
Nov 24 2009 10:26:40:807AM	1091124006	Ian Hutchinson	Plasma to rampdown. NL04 to 1e20 Reduce Ar puff back to 75ms.
Nov 24 2009 10:37:28:870AM	1091124007	Ian Hutchinson	Plasma to rampdown. Ip to 0.8MA.
Nov 24 2009 10:50:44:480AM	1091124008	Ian Hutchinson	Plasma to rampdown. Raise nl04 point at .25s. Flattop to .8e20 Ip to 0.6MA.
Nov 24 2009 11:07:02:087AM	1091124009	Ian Hutchinson	Plasma disrupts at .95s. Brick. Load from 1091118004. Import segment 1 from 1091124009. Load.
Nov 24 2009 11:17:23:357AM	1091124010	Ian Hutchinson	Plasma to rampdown Load from 1091022029 Move the zcur swing from 1s to 0.8s. These does not seem to be any other programming that does ssep control. nl04 to 1.e20. Load. Import seg 1 from shot 9. Load.
Nov 24 2009 11:36:52:717AM	1091124011	Ian Hutchinson	Plasma to rampdown. Fill puff to 50ms. He3 puff to 150ms from 100ms. Load.
Nov 24 2009 11:47:38:107AM	1091124012	Ian Hutchinson	Plasma to rampdown. nl04 to 1.1e20
Nov 24 2009 12:05:26:480PM	1091124013	Ian Hutchinson	Plasma to rampdown. Reload shot 8. Import seg 1 from shot 13. Load.
Nov 24 2009 12:17:17:590PM	1091124014	Ian Hutchinson	Plasma to rampdown.
Nov 24 2009 12:30:17:670PM	1091124015	Ian Hutchinson	Plasma to rampdown. Load from shot 9. Import segment 1 from 15. Load.
Nov 24 2009 12:48:25:997PM	1091124016	Ian Hutchinson	Plasma to rampdown.
Nov 24 2009 12:59:14:027PM	1091124017	Ian Hutchinson	Plasma to rampdown. Load from 1091118032. Import seg 1 from shot 17. Set Ip to 0.8MA.
Nov 24 2009 01:14:34:230PM	1091124018	Ian Hutchinson	Plasma to rampdown.
Nov 24 2009 01:26:11:217PM	1091124019	Ian Hutchinson	Plasma to rampdown. Move to second half of the day: Load from 1091117004. Load. I am told that's the wrong shot. Load from 1091119004. Load.
Nov 24 2009 01:40:11:903PM	1091124020	Ian Hutchinson	Plasma disrupts at .66s. Turn off Argon. Raise nl04 to .7e20 Lower fill puff to 35ms.
Nov 24 2009 01:51:58:950PM	1091124021	Ian Hutchinson	Fizzle. Fill puff to 25ms.
Nov 24 2009 02:06:12:183PM	1091124022	Ian Hutchinson	Plasma to rampdown.
Nov 24 2009 02:17:31:513PM	1091124023	Ian Hutchinson	Plasma to rampdown. Fill puff to 30ms. Ip to 1.2MA.
Nov 24 2009 02:33:30:467PM	1091124024	Ian Hutchinson	Plasma to .88s. Big injection. Fill puff to 20ms. Purge Ar from B-side lower and fill with 2psi of Neon. Add 150ms puff of Neon at .5s
Nov 24 2009 02:53:04:527PM	1091124025	Ian Hutchinson	Plasma to 1.74s. Fill puff back to 30ms. Neon puff to 100ms.
Nov 24 2009 03:02:18:107PM	1091124026	Ian Hutchinson	Plasma to 1.64s. Neon puff to 75ms.
Nov 24 2009 03:16:13:013PM	1091124027	Ian Hutchinson	Plasma disrupts at .43s Ip to 1MA. Fill puff to 25ms.
Nov 24 2009 03:28:45:780PM	1091124028	Ian Hutchinson	Plasma disrupts at .5s Increase clearin. Change b21proj to have -2.20880e-08 for ef3l coefficient from -1.2...
Nov 24 2009 03:42:43:357PM	1091124029	Ian Hutchinson	Plasma to 1.68s Delay the rcur ramp end to .5s Increase clearin. Fill puff to 30ms.
Nov 24 2009 03:54:04:793PM	1091124030	Ian Hutchinson	Plasma. Fill puff to 34ms.
Nov 24 2009 04:09:13:967PM	1091124031	Ian Hutchinson	Plasma disrupts at .44s. On examination all the shots that disrupt relatively early appear to have very small sawteeth typical of locked modes. Move start of A-coil to .1s Put fill puff to 30ms.
Nov 24 2009 04:19:11:543PM	1091124032	Ian Hutchinson	Plasma. Fill puff to 35ms.
Nov 24 2009 04:39:03:137PM	1091124033	Ian Hutchinson	Plasma. Import seg 2 from 1091123034 to seg 4. Grab TF trace and put in seg 2. Increase the b21proj EF3l term to -3.2 Install He3 puff .4s 60ms.
Nov 24 2009 04:48:39:200PM	1091124034	Ian Hutchinson	Plasma. Slow TF ramp rate. Raise max TF current 2%. Remove Ne puff.
Nov 24 2009 05:05:21:497PM	1091124035	Ian Hutchinson	Plasma to rampdown. b21proj back to 1.2..
Nov 24 2009 05:05:31:933PM	1091124036	Ian Hutchinson	Plasma to rampdown.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:58:54:450AM	Plasma	Ok
2	09:14:33:557AM	Plasma	Ok
3	09:27:18:540AM	Plasma	Ok
4	09:41:13:463AM	Plasma	Ok
5	09:53:42:667AM	Plasma	Ok
6	10:08:05:777AM	Plasma	Ok
7	10:20:43:837AM	Plasma	Ok
8	10:35:05:730AM	Plasma	Ok
9	10:48:43:103AM	Plasma	Ok
10	11:01:52:673AM	Plasma	Ok
11	11:15:44:887AM	Plasma	Ok
12	11:32:54:277AM	Plasma	Ok
13	11:45:45:903AM	Plasma	Ok
14	11:58:48:403AM	Plasma	Ok
15	12:13:15:980PM	Plasma	Ok
16	12:27:59:530PM	Plasma	Ok
17	12:42:25:763PM	Plasma	Ok
18	12:57:24:310PM	Plasma	Ok
19	01:10:50:403PM	Plasma	Ok
20	01:24:10:560PM	Plasma	Ok
21	01:37:10:310PM	Plasma	Ok
22	01:50:01:527PM	Plasma	Ok
23	02:02:49:527PM	Plasma	Ok
24	02:15:31:263PM	Plasma	Ok
25	02:31:15:077PM	Plasma	Ok
26	02:47:07:543PM	Plasma	Ok
27	03:00:02:060PM	Plasma	Ok
28	03:13:58:327PM	Plasma	Ok
29	03:26:38:920PM	Plasma	Ok
30	03:39:15:890PM	Plasma	Ok
31	03:51:52:217PM	Plasma	Ok
32	04:04:33:120PM	Plasma	Ok
33	04:17:14:170PM	Plasma	Ok
34	04:34:01:840PM	Plasma	Ok
35	04:46:41:277PM	Plasma	Ok
36	05:01:05:870PM	Plasma	Ok