Alcator C-Mod Run 1110201 Information

Miniproposals

Miniproposal: 644

Date Filed: 1/27/2011

Title: Edge profiles and fluctuations in EDA and ELM-free H-Modes

First Author: Jerry Hughes

Session Leader: Jerry Hughes (shots 1-35)

Operators
Session leader(s):	Jerry Hughes
Physics operator(s):	Jim Irby
Engineering operator(s):	Sam Pierson,Ed Fitzgerald,Sam Pierson,Ed Fitzgerald,Bill Byford

Engineering Operator Run Comment
MP 644

Session Leader Plans

Entered: Feb 1 2011 05:56:56:010AM

Author: Jerry Hughes

SL Plan for 1110201
MP644, "Edge profiles and fluctuations in EDA and ELM-free H-modes"
Possible Piggyback: MP600, "Exploring the Effect of Fast RF Power Modulation on the Quasi-coherent Mode"
SL: J. Hughes
PO: J. Irby

>>Setup:

Run begins at 09:00 and ends at 17:00, although an extra hour may be
requested if there are delays during the run that slow data
collection.

Overnight boronization requested, followed by He ECDC. Use recipe from latest
boronization.

**Special gas setup:
fill B-side lower with 1 psi Ar (PG1)
fill H-bottom with 2 psi Ne
fill NINJA with 14 psi mix 50/50 D2/He

ICRF: all transmitters available. D-port will be configured with frequency
modulation, and can be turned on during selected portions of the
discharges to look for effects on fluctuations, including the QCM.
DNB: yes

**Requested diagnostics:
core and edge TS
GPC, GPC2, FRCECE
TCI (with the difference signal from chords 2 and 3 going to fast
digitizer)
div probes
IR camera
all working bolometry
O-mode reflectometry
X-mode reflectometry
fast magnetics
Edge CXRS
Hirex Sr
PCI (masked to optimize for edge fluctuations)

**Starting shot:

Reproduce 1100212012. This was a 0.9MA, 5.4T shot from the FY10 JRT
study, with good strike point placement for the IR camera. Reduce
target nl04 from 1.2e20 to 1.0e20. Enable H-bottom and B-side lower.
Pulse PG1 from 0.30 to 0.35s for diagnostic Ar. Set H-bottom to chop
and program a 70V PG5 pulse from 0.4 to 0.5s

>>Shot plan

(1) Begin boronization recovery. Allow ICRF to condition up from 0.6s
to 1.5s with whatever waveforms they desire, until a clean 3MW can
be injected. Use these shots to tweak plasma shape, beam pulses,
NINJA puffs, etc. for optimal data collection.
(~5 shots)

(2) Raise Ip to 1.2MA, nl04 to 1.2e20. Run ICRF from 0.7s to 1.1s at 2MW and
from 1.1s to 1.5s at 3MW. If feasible, run a second discharge with power
levels of 3MW and 4MW. Modest levels of Ne seeding may continue, if needed
to reduce injections from PFCs. Target density may need to be reduced in
order to operate ICRF.
(~3 shots)

(3) Set Ip to 0.9MA, nl04 to 0.9e20. Run ICRF from 0.7s to 1.1s at 2MW and
from 1.1s to 1.5s at 3MW. If feasible, run a second discharge with power
levels of 3MW and 4MW. Use Ne as needed.
(~3 shots)

(4) Keeping Ip at 0.9MA, perform nl04 scan. Attempt a three point scan, from the
highest feasible target (>1e20) to 0.6e20. At each density, use ICRF from
0.7s to 1.1s at 2MW and from 1.1s to 1.5s at 3MW. Use Ne as needed.
(~4 shots)

(5) Set Ip to 0.7MA, nl04 to 0.7e20. Run ICRF from 0.7s to 1.1s at 2MW and
from 1.1s to 1.5s at 3MW. If feasible, run a second discharge with power
levels of 3MW and 4MW. Use Ne as needed.
(~3 shots)

(6) Keeping Ip at 0.7MA, scan upper triangularity. Attempt to achieve a range
in delta_u of 0.2 to 0.8, holding lower triangularity roughly fixed. If the
extremes in delta_u result in railed power supplies or loss of steady
H-mode, we can try lowering the plasma current. Some repositioning of the
edge TS fibers may be needed to handle the extremes in shaping. We will
attempt to hold the right gap constant, to the benefit of the midplane
diagnostics. At each new shape, run ICRF from 0.7s to 1.1s at 2MW and
from 1.1s to 1.5s at 3MW.
(~8 shots)

(7) Set Ip to 0.5MA, nl04 to 0.5e20. Run ICRF from 0.7s to 1.1s at 2MW and
from 1.1s to 1.5s at 3MW. If feasible, run a second discharge with power
levels of 3MW and 4MW. Use Ne as needed.
(~3 shots)

Physics Operators Plans

Entered: Jan 31 2011 01:46:49:353PM

Author: Jim Irby

-----------------
Engineering Setup
-----------------

Run begins at 09:00 and ends at 17:00 (or possibly 18:00 depending on progress)

Power systems as on: 1100212012

Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled

Gas setup:

Fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)

**Special gas setup:
fill H-bottom with 2 psi Ne
fill NINJA with 14 psi mix 50/50 D2/He (enabled)

Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus
Leave z-bolo shutter as is (should be open)

Torvac gatevalve toggle (yes/no): no

Boronization(yes/no): yes --- use last recipe
Overnight ECDC (yes/no): yes --- in Helium following boronization
ICRF(yes/no): yes
LH(yes/no): no
Cryopump (yes/no): yes
DNB (yes/no): yes

Vessel temperature: 35/35/35

Entered: Feb 1 2011 09:09:55:830AM

Author: Jim Irby

load from 1110128034
import seg 2 from 1100212012 into seg 2
open tree done

pg 4 at 56 ms
pg 1 from 0.3 to 0.35 s
h-bottom set for 70 V from 0.4 to 0.5 s

nl_04 from 1.2 to 1.0e20/m^2

open tree done

try for gas test but data system problems

Entered: Feb 1 2011 09:28:14:360AM

Author: Jim Irby

gas test again --- looks ok

Entered: Feb 1 2011 09:52:05:587AM

Author: Jim Irby

plasma for 0.42 s --- no clear reason for shot plasma

Session Leader Summaries

Entered: Feb 2 2011 02:31:09:657PM

Author: Jerry Hughes

SL summary for 1110201
MP 644, "Edge profiles and fluctuations in EDA and ELM-free H-modes"
SL: J. Hughes
PO: J. Irby

This run attempted to collect an extensive set of edge profile data,
including radial electric field, and also edge fluctuation data,
associated with the pedestal in EDA and ELM-free H-mode
discharges. The objective of collecting these data is to provide
experimental results for use in refining and testing models of
pedestal structure. This effort constitues a major part of the C-Mod
contribution to the FY11 JRT in pedestal physics. The experiment also
provided some useful discharges for other research, including MP600
(Y. Lin), a continuing study of the SOL heat flux channel with
divertor IR (J. Terry), and the thesis work of R.M. Churchill and
I. Cziegler.

In the experiment, we fixed magnetic field at 5.4T and varied
parameters that have been seen to affect significantly both pedestal
structure and the character of edge fluctuations. Plasma current was
varied between 0.5MA and 1.2MA, spanning the boundary between steady
EDA H-modes with a strong quasi-coherent mode (QCM) in the edge and
more quiescent ELM-free H-modes. Additionally, at a fixed current of
0.9MA, L-mode target density was scanned in the range of
1.1--1.9x10^20 m^-3, also to change the quality of the QCM. Finally we
scanned upper triangularity from less than 0.3 to nearly 0.9 with
other shape parameters fixed. A concerted effort was made to optimize
all relevant edge diagnostics and to use them on every shot. The
results are being analyzed by the C-Mod team, and will be readied for
use in the ongoing pedestal experiment/modeling collaboration.

This run was very successful. We collected nearly every point in our
desired parameter scans, despite a late start and a few bad
startups. We obtained data from Thomson scattering, beam-based CXRS,
O-mode and X-mode reflectometry, PCI, fast magnetics, gas puff
imaging, divertor IR and Hirex Sr. on almost every shot. Because this
experiment needed to be completed before the end of the campaign in
order to meet the high-level milestone, we were granted permission to
extend the run to 18:00, if necessary. This extension was very useful
in allowing us to complete the experiment, and thanks go out to all
the personnel who stuck around and made this happen.

Shots of interest:
3--9. Startup and boronization recovery
10--15, 22--24, 34--35. Current scan at roughly fixed n/n_G
15--21. Density scan at fixed Ip
24--30. Triangularity scan

Physics Operator Summaries

Entered: Feb 4 2011 08:37:43:497AM

Author: Jim Irby

Machine ran extremely well today until shot 31 when we had a controlled
shutdown because of hard x-rays levels. It took 3 shots to recover from
this shot. This shot followed two high triangularity shots. On the first of these discharges we ran the plasma into the wall at Z ~ 41 cm.

There was almost no tweaking of the startup all day.

Some dramatic changes in triangularity were produced.

Problems
--------

The runaway discharge on shot 31 damaged two new reflectometer mixers, which had just be installed.

Lost about 45 minutes this morning bringing the data system on-line.

Shot 31 was shutdown because of hards.
Shots 32,33 were short, probably because of recovery from shot 31.

Session Leader Comments

Feb 1 2011 09:06:37:977AM 1110201001 Jerry Hughes Shot 1.

Gas test. Data system problems. Shot number didn't increment.

Try again. Shot number didn't increment again.

Feb 1 2011 09:27:49:337AM 1110201002 Jerry Hughes Shot 2.

Gas test ran successfully. Data system seems to be working now.

Feb 1 2011 09:39:08:950AM 1110201003 Jerry Hughes Shot 3.

Attempt: Plasma, Boronization recovery.

Result: Early disruption

Feb 1 2011 10:03:16:427AM 1110201004 Jerry Hughes Shot 4:

Attempt: Retry.

Result: Full length plasma. EDA H-mode. RF is coming up.

Feb 1 2011 10:16:21:807AM 1110201005 Jerry Hughes Shot 5.

Attempt: Continue boronization recovery.

Result: Plasma, EDA H-modes, with some injections. Starting to get some J-port
power.

Next: Reduce inner gap for Churchill's benefit.

Feb 1 2011 10:36:12:893AM 1110201006 Jerry Hughes Shot 6.

Attempt: Continue boronization recovery. Reduce inner gap.

Result: Long EDA H-mode. RF is looking much better. D-port is trying a
50kHz modulation.
Inner gap looks okay. Right gap is drifting.
J. Terry likes the strike point very much.

Feb 1 2011 11:09:10:790AM 1110201007 Jerry Hughes Shot 7.

Result: Long EDA H-mode.

Next. Try to get RF program, dianostic timing finalized at this condition.
Turn off D-port modulation.

Matt informs me that I forgot to have Ne enabled. Oh well, boronization
recovery seems to have gone reasonably well anyway.

Feb 1 2011 10:56:37:310AM 1110201008 Jerry Hughes Shot 8.

Attempt: 0.9MA baseline

Result: Early disruption.

Feb 1 2011 11:23:28:517AM 1110201009 Jerry Hughes Shot 9.

Result: H-modes, great looking RF.
Beam timing seems okay.
Right gap may be a little small.

Next: Increase right gap.

Feb 1 2011 11:42:13:530AM 1110201010 Jerry Hughes Shot 10.

Attempt: Retry with increased gap.

Result: Plasma into rampdown. EDA H-modes, one long.
Getting a good vibe from the diagnosticians.

Next: Move on the the high Ip points.

Feb 1 2011 12:00:00:313PM 1110201011 Jerry Hughes Shot 11.

Attempt: Higher current to access ELM-free H-modes.

Result: 3 H-modes. Fluctuation instruments working. ~2 beam blips in each H-mode.
nl04 in the L-mode is a lttle low.

Good ECE cutoff data!

Next: It seems like there is some headroom on neutral pressure, so we'll try to
raise nl04 for next shot. Also, raise RF power program by 1MW.

Feb 1 2011 12:14:27:060PM 1110201012 Jerry Hughes Shot 12.

Attempt: Repeat shot 11 with higher power.

Result: Early disruption of unknown origin.

Next: Retry. Revert to density demand of shot 11.

Feb 1 2011 12:45:24:140PM 1110201013 Jerry Hughes Shot 13.

Attempt: Shot 11 with more power.

Result: Disrupton at 1.03s, after 2 H-modes.

Next: Reduce Ip to 1.1MA.

Feb 1 2011 12:47:59:203PM 1110201014 Jerry Hughes Shot 14.

Attempt: Ip=1.1MA

Result. Ran into rampdown. Got some transient H-modes. Potentially
good data in the first one, at 3MW ICRF.

Next: Go back to 0.9MA, 3 and 4MW ICRF.

Feb 1 2011 01:15:16:893PM 1110201015 Jerry Hughes Shot 15.

Attempt: Revert to 0.9MA, moderate density case

Result: 1 long EDA. No DNB.

Feb 1 2011 01:16:34:353PM 1110201016 Jerry Hughes Shot 16.

Attempt: 0.9MA, nl04~1.2e20, Prf at 2 and 3MW.

Result: Got the target, with a long EDA.
No DNB still. Edgar says it will be back on next shot.

Feb 1 2011 01:28:15:703PM 1110201017 Jerry Hughes Shot 17.

Attempt: Retry 16 with higher power.

Result. plasma into rampdown, 1 long EDA H-mode.
DNB is back

Feb 1 2011 01:47:35:740PM 1110201018 Jerry Hughes Shot 18.

Attempt. Repeat with nl04 reduced to 1.0e20.

Result: Good shot. Got RF at 3, 4MW. DNB is working. Churchill has been working
with E. Rollins to optimize the beam timing.

Next: Reduce density farther.

Feb 1 2011 02:05:17:157PM 1110201019 Jerry Hughes Shot 19.

Attempt: 0.9MA, nl04=0.8e20, RF at 3 and 4MW.

Result: Got some H-modes, not as clean as I would like.
There is an injection before the RF ever turns on, which may be mucking
things up. The density is too low when the RF actually turns on.
There is a reasonably steady phase late in the flattop.

Feb 1 2011 02:17:23:017PM 1110201020 Jerry Hughes Shot 20.

Attempt: 0.9MA, nl04~0.8e20, RF at 3 and 4MW

Result: Early disruption, pre-RF

Feb 1 2011 02:28:36:880PM 1110201021 Jerry Hughes Shot 21

Attempt: Try again.

Result: Successful shot. Low density target with initial ELM-free H-mode,
followed by some EDA.

Feb 1 2011 02:50:51:787PM 1110201022 Jerry Hughes Shot 22.

Attempt: 0.7MA, 0.7e20. RF at 2 and 3MW.

Result: Good pulse. There may be some fueling from the diagnostic NINJA
puff at 1.23s.

Next: Turn off the HFS puff and increase RF power.

Feb 1 2011 03:06:45:643PM 1110201023 Jerry Hughes Shot 23

Attempt: 0.7MA, 0.7e20 RF at 3 and 4MW.

Result: Good shot. 1 steady EDA H-mode.
NINJA is probably still doing some fueling. For the next shot refill
NINJA with 8psi He.

Feb 1 2011 03:20:06:197PM 1110201024 Jerry Hughes Shot 24.

Attempt: Repeat with a decreased delta_u. Requesting an increase in RXU from
the PO.

Result: No significant shape change. The fueling bump from the NINJA seems
to be gone with the reduced puff.

Feb 1 2011 04:05:18:430PM 1110201025 Jerry Hughes Shot 25.

Attempt: Repeat with higher triangularity.

Result: Got the delta_u up to 0.36 from 0.30 by 0.8s. delta_l is not too
different. kappa is similar.
Initial H-modes are a little ragged, maybe because the discharge is evolving
still when the RF comes on.

Feb 1 2011 04:06:13:223PM 1110201026 Jerry Hughes Shot 26.

Attempt: Big increase in delta_u

Result: Successful shot. Good RF. Jim says there's good IR data.

Next: rerun with edge TS fibers moved to improve pedestal diagnosis in this shape.

Feb 1 2011 04:19:51:857PM 1110201027 Jerry Hughes Shot 27.

Attempt. Repeat shot 26 with improved TS data.

Result: A good repeat, even down to the upper chamber burst of D-alpha, early
in the H-mode.

Next: More triangularity!

Feb 1 2011 04:43:41:573PM 1110201028 Jerry Hughes Shot 28.

result: early disruption

Feb 1 2011 04:47:05:400PM 1110201029 Jerry Hughes Shot 29.

Attempt: The weirdest looking equilibirium ever.

Result: Came pretty close. delta_u getting close to 0.9, and at some point,
the LCFS is connecting to the inner wall at z=31cm. But there is a
significant period of clean EDA H-mode.

Next: PO will increase RXU

Feb 1 2011 05:02:54:960PM 1110201030 Jerry Hughes Shot 30

Result: Plasma into rampdown. Good looking EDA H-mode.
Got fluctuation data. IR data good throughout whole triangularity scan.

This is enough triangularity scanning. Although it is fun, we should pick up
the 0.5MA data and go home.

Feb 1 2011 05:07:04:350PM 1110201031 Jerry Hughes Shot 31

Result: Early hards and controlled shutdown.

Feb 1 2011 05:27:05:397PM 1110201032 Jerry Hughes Shot 32

Fizzle.

Feb 1 2011 05:48:08:670PM 1110201033 Jerry Hughes Shot 33

Result: Early disruption. Is it being overgassed?

Feb 1 2011 06:00:57:643PM 1110201034 Jerry Hughes Shot 34:

Result: Plasma, 0.5MA, nl04~0.5e20. H-modes, the last one EDA.

Feb 1 2011 06:18:01:850PM 1110201035 Jerry Hughes Shot 35.

Attempt: Repeat 34 with more power.

Result: Success. Got 4MW in steady. Confinement is not great, but the edge Te
gets up into the 500eV range.

EOR

Physics Operator Comments

Feb 1 2011 09:55:06:037AM 1110201004 Jim Irby changes --------------------------------

no changes

results --------------------------------

plasma into rampdown

Feb 1 2011 10:27:50:490AM 1110201005 Jim Irby changes --------------------------------

no changes

results --------------------------------

plasma for 1.34 s

Feb 1 2011 10:26:31:707AM 1110201006 Jim Irby changes --------------------------------

Reduce clearin from 0.005 to -0.003 m
open tree done

results --------------------------------

plasma into rampdown

Feb 1 2011 10:41:45:930AM 1110201007 Jim Irby changes --------------------------------

no changes

results --------------------------------

plasma into rampdown

Feb 1 2011 10:56:06:147AM 1110201008 Jim Irby changes --------------------------------

no changes

results --------------------------------

Plasma for 0.465 s --- injections

Feb 1 2011 11:27:31:270AM 1110201009 Jim Irby changes --------------------------------

no changes

results --------------------------------

plasma into rampdown

Feb 1 2011 11:32:19:867AM 1110201010 Jim Irby changes --------------------------------

increase right gap by 4 mm, from 4 to 8 mm

results --------------------------------

plasma into rampdown

decreased RCUR too much ---- forgot factor of 2

Feb 1 2011 11:49:19:750AM 1110201011 Jim Irby changes --------------------------------

nl04 from 1.0 to 1.2e20/m2
Ip from 900 to 1200 kA
loaded

results --------------------------------

plasma for 1.52 s

Feb 1 2011 12:14:57:087PM 1110201012 Jim Irby changes --------------------------------

nl04 request from 1.2 to 1.3e20/m^2 --- tweak to get 1.2 target
open tree done

results --------------------------------

plasma for 0.625 s ----

Feb 1 2011 12:28:01:200PM 1110201013 Jim Irby changes --------------------------------

nl04 request from 1.3 to 1.2e20/m^2
loaded

results --------------------------------

plasma for 1.03 s --- injection

Feb 1 2011 12:40:59:747PM 1110201014 Jim Irby changes --------------------------------

Ip to 1100 kA from 1200 kA
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 01:00:43:490PM 1110201015 Jim Irby changes --------------------------------

Ip from 1100 to 900 kA
nl04 request to 0.9e20/m^2
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 01:09:20:267PM 1110201016 Jim Irby changes --------------------------------

nl04 from 0.9 to 1.2e20/m2

results --------------------------------

plasma into rampdown

Feb 1 2011 01:23:51:080PM 1110201017 Jim Irby changes --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown

Feb 1 2011 01:43:59:283PM 1110201018 Jim Irby changes --------------------------------

nl04 from 1.2 to 1.0e20/m^2
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 02:00:25:710PM 1110201019 Jim Irby changes --------------------------------

nl04 from 1.0 to 0.8e20/m^2
loaded

results --------------------------------

plasma into rampdown --- injection before rf

Feb 1 2011 02:16:17:410PM 1110201020 Jim Irby changes --------------------------------

no changes

results --------------------------------

plasma for 0.49 s --- hit wall

Feb 1 2011 02:26:37:483PM 1110201021 Jim Irby changes --------------------------------

try again --- no dpcs changes

results --------------------------------

plasma into rampdown

Feb 1 2011 02:44:38:190PM 1110201022 Jim Irby changes --------------------------------

nl04 to 0.7e20/m^2
Ip to 700 kA
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 03:07:29:490PM 1110201023 Jim Irby changes --------------------------------

no dpcs changes --- more rf power

results --------------------------------

plasma into rampdown

Feb 1 2011 03:20:04:770PM 1110201024 Jim Irby changes --------------------------------

RXU set to near 0.0 m during flattop (change of abt 7 mm)
NINJA 8.3 psi of helium
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 03:40:06:540PM 1110201025 Jim Irby changes --------------------------------

reloaded 1110201023 into seg 2 and then decreased RZU by abt 20 mm
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 03:56:05:780PM 1110201026 Jim Irby changes --------------------------------

reduced RXU another 30 mm --- should be interesting
loaded

results --------------------------------

plasma into rampdown --- triangularity good!

Feb 1 2011 04:14:13:707PM 1110201027 Jim Irby changes --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown

Feb 1 2011 04:28:28:957PM 1110201028 Jim Irby changes --------------------------------

decreased RXU another 30 mm
loaded

results --------------------------------

plasma for 0.175 s --- injections starting at 40 ms, neuts and hards coming up about that time also.

Feb 1 2011 04:44:57:410PM 1110201029 Jim Irby changes --------------------------------

Reduced RXU downward slope a little
added 2 ms of gas to the prepuff
loaded

results --------------------------------

plasma into rampdown --- too big a change in RXU --- plasma dragged into upper wall by 1.2 s

Feb 1 2011 04:53:26:777PM 1110201030 Jim Irby changes --------------------------------

RXU increased by 10 mm --- keep plasma off the wall
loaded

results --------------------------------

plasma into rampdown --- plasma off the wall

Feb 1 2011 05:45:37:817PM 1110201031 Jim Irby changes --------------------------------

load from 1110201023
import seg 1 from 1110201030 into seg 1
loaded

Ip to 500 kA
nl04 to 0.5e20/m^2
loaded

results --------------------------------

hards shut us down at 300 ms

ssd_x01 2 uA of current average with 4 uA peaks
ssd_x02 and x03 saturated most of the time

density very low after 20 ms

Feb 1 2011 05:27:32:827PM 1110201032 Jim Irby changes --------------------------------

increased pg4 prepuff a little
increased early nl04 request
loaded

results --------------------------------

plasma for 65 ms, 130 kA --- recovery from previous shot?

Feb 1 2011 05:36:56:817PM 1110201033 Jim Irby changes --------------------------------

no changes

results --------------------------------

plasma for 400 ms

Feb 1 2011 05:52:44:983PM 1110201034 Jim Irby changes --------------------------------

early nl04 request reduced
loaded

results --------------------------------

plasma into rampdown

Feb 1 2011 05:58:53:823PM 1110201035 Jim Irby changes --------------------------------

no dpcs changes --- just a little more rf power

results --------------------------------

plasma into rampdown

Engineering Operator Comments

Shot Time Type Status Comment

1 08:53:36:077AM Test Bad

2 09:24:34:160AM Test Ok

3 09:36:31:910AM Plasma Ok

4 09:50:10:097AM Plasma Ok

5 10:02:54:747AM Plasma Ok

6 10:19:51:963AM Plasma Ok

7 10:36:13:720AM Plasma Ok

8 10:52:43:947AM Plasma Bad OH@U & L Comm Fault, OH1 self powered circuit fired

9 11:07:41:983AM Plasma Ok

10 11:27:48:853AM Plasma Ok

11 11:42:36:293AM Plasma Ok

12 12:02:53:133PM Plasma Ok

13 12:20:43:213PM Plasma Ok

14 12:35:01:160PM Plasma Ok

15 12:48:37:003PM Plasma Ok

16 01:04:07:030PM Plasma Ok

17 01:21:41:770PM Plasma Ok

18 01:38:05:987PM Plasma Ok

19 01:53:43:260PM Plasma Ok

20 02:07:45:290PM Plasma Bad OH's COM fAILURE

21 02:21:30:177PM Plasma Ok

22 02:35:34:160PM Plasma Ok

23 02:49:25:680PM Plasma Ok

24 03:10:02:963PM Plasma Ok

25 03:28:35:223PM Plasma Ok

26 03:43:22:440PM Plasma Ok

27 04:04:20:893PM Plasma Ok

28 04:19:21:973PM Plasma Ok

29 04:32:50:193PM Plasma Ok

30 04:46:43:317PM Plasma Ok

31 05:01:55:223PM Plasma Ok

32 05:14:58:333PM Plasma Ok

33 05:30:12:877PM Plasma Ok

34 05:43:04:163PM Plasma Ok

35 05:55:53:823PM Plasma Ok

System Availability

Feb 1 2011 08:53:19:873AM

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 BES system is online Oct 21 2010 11:33AM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi (D+F) working. All midplane and off-midplane diode arrays working except WB1AX. Midplane foils calibrated and PRAD_MAIN is being filled. Divertor/Ledge foils not yet ready. Jul 15 2010 08:27AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Nov 16 2010 02:36PM (dekow) Jim Irby Boronization dekow,irby
CNPA yes Multiple channel CNPA available Oct 21 2010 07:11PM (parker) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor no Shut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged. Apr 06 2010 10:51AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes Wide-view CXRS system is online Oct 21 2010 11:33AM (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; new calibrations (relative brightness and position) not yet implemented Jun 29 2010 10:27AM (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 Operational Jun 26 2010 09:28PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes All channels working and calibrated. Oct 27 2010 03:41PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauges are operational. Jun 28 2010 08:02PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no Plugs for Power Supply and Controls have been unplugged and red tagged making system safe for In-Vessel Access. Apr 05 2010 11:18AM (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. Oct 22 2010 11:46AM (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 operating normally Jun 29 2010 10:26AM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Jun 26 2010 11:19PM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36PM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes System installed and aligned. Inverted Profiles for Ti are available upon request. Vtor profiles still under revision. Dec 17 2010 09:25AM (ypodpaly) John Rice High Resolution X-Ray ince,rice,ypodpaly
HXR yes 32 Channels operational Oct 23 2010 01:41PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt
ICRF D-Antenna yes system checked out ok on 11006728. Jun 28 2010 04:57PM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes system checked out ok on 1100628 Jun 28 2010 04:57PM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes system checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Laser Blow-Off yes operational and tested Jul 20 2010 04:42PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid yes LH working. New directional couplers installed at input to each klystron. Oct 21 2010 11:42AM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
Lower Hybrid Reflectometer yes 50GHz: up-, 60 GHz up- and down- Oct 21 2010 11:31AM (sgbaek) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek
Lower Hybrid SOL reflectometer yes profiles and fluctuations both working. If requested, please request LH launcher to be moved in. Jan 18 2011 03:07PM (cornwall) Cornwall Lau Lower Hybrid SOL reflectometer cornwall,wukitch,ylin
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no WB4LY and LLY working but not during ICRF. WB1LY not attached due to pickup problems. LYMID attached but have profile problems. Aug 24 2010 09:17AM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Spectra being collected and tree filled. Wavelength scan is broken so fixed on the Mo XXXI and XXXII lines. Jul 15 2010 08:28AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Oct 22 2010 11:46AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Gauges are operational Jun 28 2010 08:02PM (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 All systems are on and functional Jun 29 2010 12:56PM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes PMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03 Jun 26 2010 09:21PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby
NINJA no Capillaries tested in-vessel. Jun 28 2010 08:08PM (labombard) Brian LaBombard NINJA gas puff labombard,terry
PCI yes Operational. AM (2 * 39.51) MHz. Dec 13 2010 05:29PM (ntsujii) Miklos Porkolab Phase Contrast Imaging ennever,ntsujii,porkolab
Penning Gauges no High voltage power supplies are turned off, waiting for work at A-port horizontal to be finished. Jun 28 2010 08:07PM (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 Jun 26 2010 11:19PM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Jun 26 2010 11:19PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Jun 26 2010 11:19PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Jun 26 2010 11:20PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Operational. Jun 28 2010 08:03PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational. Jun 28 2010 08:03PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes F and J outer divertor probes are operational. Jun 28 2010 08:04PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Operational, except probe#13 Jun 28 2010 08:04PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes As of 1101123, the 60, 88u, 88l, 140 and variable set at 115GHz are operational. The 50, 75 and 112 are nonoperational. On 1101123, the noise band at ~200kHz is again seen on the 88u and 88l channels. Nov 23 2010 09:30AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Operational. New Langmuir-Mach probe head installed. Jun 28 2010 08:05PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Operational. Jun 28 2010 08:05PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes Both A and K units are operational. Coil polarity needs to be checked. Jun 28 2010 08:06PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Sparker yes HV supply on, cable run to sparker at k-hor Jun 23 2010 02:41PM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
Surface Science Station yes SSS installed and leak tested. Oct 21 2010 11:31AM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov
TCI yes No new CO2 detector, so still missing edge channels Jun 23 2010 02:40PM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes Operating with 2 lasers Oct 22 2010 01:06PM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma
TS - Edge yes Operational Jul 14 2010 11:54AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XEUS yes Raw spectra stored but not line brightness time histories are going into the tree yet. Jan 20 2011 10:45AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer mlreinke
XTOMO yes Core system working. Edge system waiting for H-modes. Jul 01 2010 11:55AM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Feb 1 2011 09:06:37:977AM	1110201001	Jerry Hughes	Shot 1. Gas test. Data system problems. Shot number didn't increment. Try again. Shot number didn't increment again.
Feb 1 2011 09:27:49:337AM	1110201002	Jerry Hughes	Shot 2. Gas test ran successfully. Data system seems to be working now.
Feb 1 2011 09:39:08:950AM	1110201003	Jerry Hughes	Shot 3. Attempt: Plasma, Boronization recovery. Result: Early disruption
Feb 1 2011 10:03:16:427AM	1110201004	Jerry Hughes	Shot 4: Attempt: Retry. Result: Full length plasma. EDA H-mode. RF is coming up.
Feb 1 2011 10:16:21:807AM	1110201005	Jerry Hughes	Shot 5. Attempt: Continue boronization recovery. Result: Plasma, EDA H-modes, with some injections. Starting to get some J-port power. Next: Reduce inner gap for Churchill's benefit.
Feb 1 2011 10:36:12:893AM	1110201006	Jerry Hughes	Shot 6. Attempt: Continue boronization recovery. Reduce inner gap. Result: Long EDA H-mode. RF is looking much better. D-port is trying a 50kHz modulation. Inner gap looks okay. Right gap is drifting. J. Terry likes the strike point very much.
Feb 1 2011 11:09:10:790AM	1110201007	Jerry Hughes	Shot 7. Result: Long EDA H-mode. Next. Try to get RF program, dianostic timing finalized at this condition. Turn off D-port modulation. Matt informs me that I forgot to have Ne enabled. Oh well, boronization recovery seems to have gone reasonably well anyway.
Feb 1 2011 10:56:37:310AM	1110201008	Jerry Hughes	Shot 8. Attempt: 0.9MA baseline Result: Early disruption.
Feb 1 2011 11:23:28:517AM	1110201009	Jerry Hughes	Shot 9. Result: H-modes, great looking RF. Beam timing seems okay. Right gap may be a little small. Next: Increase right gap.
Feb 1 2011 11:42:13:530AM	1110201010	Jerry Hughes	Shot 10. Attempt: Retry with increased gap. Result: Plasma into rampdown. EDA H-modes, one long. Getting a good vibe from the diagnosticians. Next: Move on the the high Ip points.
Feb 1 2011 12:00:00:313PM	1110201011	Jerry Hughes	Shot 11. Attempt: Higher current to access ELM-free H-modes. Result: 3 H-modes. Fluctuation instruments working. ~2 beam blips in each H-mode. nl04 in the L-mode is a lttle low. Good ECE cutoff data! Next: It seems like there is some headroom on neutral pressure, so we'll try to raise nl04 for next shot. Also, raise RF power program by 1MW.
Feb 1 2011 12:14:27:060PM	1110201012	Jerry Hughes	Shot 12. Attempt: Repeat shot 11 with higher power. Result: Early disruption of unknown origin. Next: Retry. Revert to density demand of shot 11.
Feb 1 2011 12:45:24:140PM	1110201013	Jerry Hughes	Shot 13. Attempt: Shot 11 with more power. Result: Disrupton at 1.03s, after 2 H-modes. Next: Reduce Ip to 1.1MA.
Feb 1 2011 12:47:59:203PM	1110201014	Jerry Hughes	Shot 14. Attempt: Ip=1.1MA Result. Ran into rampdown. Got some transient H-modes. Potentially good data in the first one, at 3MW ICRF. Next: Go back to 0.9MA, 3 and 4MW ICRF.
Feb 1 2011 01:15:16:893PM	1110201015	Jerry Hughes	Shot 15. Attempt: Revert to 0.9MA, moderate density case Result: 1 long EDA. No DNB.
Feb 1 2011 01:16:34:353PM	1110201016	Jerry Hughes	Shot 16. Attempt: 0.9MA, nl04~1.2e20, Prf at 2 and 3MW. Result: Got the target, with a long EDA. No DNB still. Edgar says it will be back on next shot.
Feb 1 2011 01:28:15:703PM	1110201017	Jerry Hughes	Shot 17. Attempt: Retry 16 with higher power. Result. plasma into rampdown, 1 long EDA H-mode. DNB is back
Feb 1 2011 01:47:35:740PM	1110201018	Jerry Hughes	Shot 18. Attempt. Repeat with nl04 reduced to 1.0e20. Result: Good shot. Got RF at 3, 4MW. DNB is working. Churchill has been working with E. Rollins to optimize the beam timing. Next: Reduce density farther.
Feb 1 2011 02:05:17:157PM	1110201019	Jerry Hughes	Shot 19. Attempt: 0.9MA, nl04=0.8e20, RF at 3 and 4MW. Result: Got some H-modes, not as clean as I would like. There is an injection before the RF ever turns on, which may be mucking things up. The density is too low when the RF actually turns on. There is a reasonably steady phase late in the flattop.
Feb 1 2011 02:17:23:017PM	1110201020	Jerry Hughes	Shot 20. Attempt: 0.9MA, nl04~0.8e20, RF at 3 and 4MW Result: Early disruption, pre-RF
Feb 1 2011 02:28:36:880PM	1110201021	Jerry Hughes	Shot 21 Attempt: Try again. Result: Successful shot. Low density target with initial ELM-free H-mode, followed by some EDA.
Feb 1 2011 02:50:51:787PM	1110201022	Jerry Hughes	Shot 22. Attempt: 0.7MA, 0.7e20. RF at 2 and 3MW. Result: Good pulse. There may be some fueling from the diagnostic NINJA puff at 1.23s. Next: Turn off the HFS puff and increase RF power.
Feb 1 2011 03:06:45:643PM	1110201023	Jerry Hughes	Shot 23 Attempt: 0.7MA, 0.7e20 RF at 3 and 4MW. Result: Good shot. 1 steady EDA H-mode. NINJA is probably still doing some fueling. For the next shot refill NINJA with 8psi He.
Feb 1 2011 03:20:06:197PM	1110201024	Jerry Hughes	Shot 24. Attempt: Repeat with a decreased delta_u. Requesting an increase in RXU from the PO. Result: No significant shape change. The fueling bump from the NINJA seems to be gone with the reduced puff.
Feb 1 2011 04:05:18:430PM	1110201025	Jerry Hughes	Shot 25. Attempt: Repeat with higher triangularity. Result: Got the delta_u up to 0.36 from 0.30 by 0.8s. delta_l is not too different. kappa is similar. Initial H-modes are a little ragged, maybe because the discharge is evolving still when the RF comes on.
Feb 1 2011 04:06:13:223PM	1110201026	Jerry Hughes	Shot 26. Attempt: Big increase in delta_u Result: Successful shot. Good RF. Jim says there's good IR data. Next: rerun with edge TS fibers moved to improve pedestal diagnosis in this shape.
Feb 1 2011 04:19:51:857PM	1110201027	Jerry Hughes	Shot 27. Attempt. Repeat shot 26 with improved TS data. Result: A good repeat, even down to the upper chamber burst of D-alpha, early in the H-mode. Next: More triangularity!
Feb 1 2011 04:43:41:573PM	1110201028	Jerry Hughes	Shot 28. result: early disruption
Feb 1 2011 04:47:05:400PM	1110201029	Jerry Hughes	Shot 29. Attempt: The weirdest looking equilibirium ever. Result: Came pretty close. delta_u getting close to 0.9, and at some point, the LCFS is connecting to the inner wall at z=31cm. But there is a significant period of clean EDA H-mode. Next: PO will increase RXU
Feb 1 2011 05:02:54:960PM	1110201030	Jerry Hughes	Shot 30 Result: Plasma into rampdown. Good looking EDA H-mode. Got fluctuation data. IR data good throughout whole triangularity scan. This is enough triangularity scanning. Although it is fun, we should pick up the 0.5MA data and go home.
Feb 1 2011 05:07:04:350PM	1110201031	Jerry Hughes	Shot 31 Result: Early hards and controlled shutdown.
Feb 1 2011 05:27:05:397PM	1110201032	Jerry Hughes	Shot 32 Fizzle.
Feb 1 2011 05:48:08:670PM	1110201033	Jerry Hughes	Shot 33 Result: Early disruption. Is it being overgassed?
Feb 1 2011 06:00:57:643PM	1110201034	Jerry Hughes	Shot 34: Result: Plasma, 0.5MA, nl04~0.5e20. H-modes, the last one EDA.
Feb 1 2011 06:18:01:850PM	1110201035	Jerry Hughes	Shot 35. Attempt: Repeat 34 with more power. Result: Success. Got 4MW in steady. Confinement is not great, but the edge Te gets up into the 500eV range. EOR

Physics Operator Comments
Feb 1 2011 09:55:06:037AM	1110201004	Jim Irby	changes -------------------------------- no changes results -------------------------------- plasma into rampdown
Feb 1 2011 10:27:50:490AM	1110201005	Jim Irby	changes -------------------------------- no changes results -------------------------------- plasma for 1.34 s
Feb 1 2011 10:26:31:707AM	1110201006	Jim Irby	changes -------------------------------- Reduce clearin from 0.005 to -0.003 m open tree done results -------------------------------- plasma into rampdown
Feb 1 2011 10:41:45:930AM	1110201007	Jim Irby	changes -------------------------------- no changes results -------------------------------- plasma into rampdown
Feb 1 2011 10:56:06:147AM	1110201008	Jim Irby	changes -------------------------------- no changes results -------------------------------- Plasma for 0.465 s --- injections
Feb 1 2011 11:27:31:270AM	1110201009	Jim Irby	changes -------------------------------- no changes results -------------------------------- plasma into rampdown
Feb 1 2011 11:32:19:867AM	1110201010	Jim Irby	changes -------------------------------- increase right gap by 4 mm, from 4 to 8 mm results -------------------------------- plasma into rampdown decreased RCUR too much ---- forgot factor of 2
Feb 1 2011 11:49:19:750AM	1110201011	Jim Irby	changes -------------------------------- nl04 from 1.0 to 1.2e20/m2 Ip from 900 to 1200 kA loaded results -------------------------------- plasma for 1.52 s
Feb 1 2011 12:14:57:087PM	1110201012	Jim Irby	changes -------------------------------- nl04 request from 1.2 to 1.3e20/m^2 --- tweak to get 1.2 target open tree done results -------------------------------- plasma for 0.625 s ----
Feb 1 2011 12:28:01:200PM	1110201013	Jim Irby	changes -------------------------------- nl04 request from 1.3 to 1.2e20/m^2 loaded results -------------------------------- plasma for 1.03 s --- injection
Feb 1 2011 12:40:59:747PM	1110201014	Jim Irby	changes -------------------------------- Ip to 1100 kA from 1200 kA loaded results -------------------------------- plasma into rampdown
Feb 1 2011 01:00:43:490PM	1110201015	Jim Irby	changes -------------------------------- Ip from 1100 to 900 kA nl04 request to 0.9e20/m^2 loaded results -------------------------------- plasma into rampdown
Feb 1 2011 01:09:20:267PM	1110201016	Jim Irby	changes -------------------------------- nl04 from 0.9 to 1.2e20/m2 results -------------------------------- plasma into rampdown
Feb 1 2011 01:23:51:080PM	1110201017	Jim Irby	changes -------------------------------- no dpcs changes results -------------------------------- plasma into rampdown
Feb 1 2011 01:43:59:283PM	1110201018	Jim Irby	changes -------------------------------- nl04 from 1.2 to 1.0e20/m^2 loaded results -------------------------------- plasma into rampdown
Feb 1 2011 02:00:25:710PM	1110201019	Jim Irby	changes -------------------------------- nl04 from 1.0 to 0.8e20/m^2 loaded results -------------------------------- plasma into rampdown --- injection before rf
Feb 1 2011 02:16:17:410PM	1110201020	Jim Irby	changes -------------------------------- no changes results -------------------------------- plasma for 0.49 s --- hit wall
Feb 1 2011 02:26:37:483PM	1110201021	Jim Irby	changes -------------------------------- try again --- no dpcs changes results -------------------------------- plasma into rampdown
Feb 1 2011 02:44:38:190PM	1110201022	Jim Irby	changes -------------------------------- nl04 to 0.7e20/m^2 Ip to 700 kA loaded results -------------------------------- plasma into rampdown
Feb 1 2011 03:07:29:490PM	1110201023	Jim Irby	changes -------------------------------- no dpcs changes --- more rf power results -------------------------------- plasma into rampdown
Feb 1 2011 03:20:04:770PM	1110201024	Jim Irby	changes -------------------------------- RXU set to near 0.0 m during flattop (change of abt 7 mm) NINJA 8.3 psi of helium loaded results -------------------------------- plasma into rampdown
Feb 1 2011 03:40:06:540PM	1110201025	Jim Irby	changes -------------------------------- reloaded 1110201023 into seg 2 and then decreased RZU by abt 20 mm loaded results -------------------------------- plasma into rampdown
Feb 1 2011 03:56:05:780PM	1110201026	Jim Irby	changes -------------------------------- reduced RXU another 30 mm --- should be interesting loaded results -------------------------------- plasma into rampdown --- triangularity good!
Feb 1 2011 04:14:13:707PM	1110201027	Jim Irby	changes -------------------------------- no dpcs changes results -------------------------------- plasma into rampdown
Feb 1 2011 04:28:28:957PM	1110201028	Jim Irby	changes -------------------------------- decreased RXU another 30 mm loaded results -------------------------------- plasma for 0.175 s --- injections starting at 40 ms, neuts and hards coming up about that time also.
Feb 1 2011 04:44:57:410PM	1110201029	Jim Irby	changes -------------------------------- Reduced RXU downward slope a little added 2 ms of gas to the prepuff loaded results -------------------------------- plasma into rampdown --- too big a change in RXU --- plasma dragged into upper wall by 1.2 s
Feb 1 2011 04:53:26:777PM	1110201030	Jim Irby	changes -------------------------------- RXU increased by 10 mm --- keep plasma off the wall loaded results -------------------------------- plasma into rampdown --- plasma off the wall
Feb 1 2011 05:45:37:817PM	1110201031	Jim Irby	changes -------------------------------- load from 1110201023 import seg 1 from 1110201030 into seg 1 loaded Ip to 500 kA nl04 to 0.5e20/m^2 loaded results -------------------------------- hards shut us down at 300 ms ssd_x01 2 uA of current average with 4 uA peaks ssd_x02 and x03 saturated most of the time density very low after 20 ms
Feb 1 2011 05:27:32:827PM	1110201032	Jim Irby	changes -------------------------------- increased pg4 prepuff a little increased early nl04 request loaded results -------------------------------- plasma for 65 ms, 130 kA --- recovery from previous shot?
Feb 1 2011 05:36:56:817PM	1110201033	Jim Irby	changes -------------------------------- no changes results -------------------------------- plasma for 400 ms
Feb 1 2011 05:52:44:983PM	1110201034	Jim Irby	changes -------------------------------- early nl04 request reduced loaded results -------------------------------- plasma into rampdown
Feb 1 2011 05:58:53:823PM	1110201035	Jim Irby	changes -------------------------------- no dpcs changes --- just a little more rf power results -------------------------------- plasma into rampdown

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:53:36:077AM	Test	Bad
2	09:24:34:160AM	Test	Ok
3	09:36:31:910AM	Plasma	Ok
4	09:50:10:097AM	Plasma	Ok
5	10:02:54:747AM	Plasma	Ok
6	10:19:51:963AM	Plasma	Ok
7	10:36:13:720AM	Plasma	Ok
8	10:52:43:947AM	Plasma	Bad	OH@U & L Comm Fault, OH1 self powered circuit fired
9	11:07:41:983AM	Plasma	Ok
10	11:27:48:853AM	Plasma	Ok
11	11:42:36:293AM	Plasma	Ok
12	12:02:53:133PM	Plasma	Ok
13	12:20:43:213PM	Plasma	Ok
14	12:35:01:160PM	Plasma	Ok
15	12:48:37:003PM	Plasma	Ok
16	01:04:07:030PM	Plasma	Ok
17	01:21:41:770PM	Plasma	Ok
18	01:38:05:987PM	Plasma	Ok
19	01:53:43:260PM	Plasma	Ok
20	02:07:45:290PM	Plasma	Bad	OH's COM fAILURE
21	02:21:30:177PM	Plasma	Ok
22	02:35:34:160PM	Plasma	Ok
23	02:49:25:680PM	Plasma	Ok
24	03:10:02:963PM	Plasma	Ok
25	03:28:35:223PM	Plasma	Ok
26	03:43:22:440PM	Plasma	Ok
27	04:04:20:893PM	Plasma	Ok
28	04:19:21:973PM	Plasma	Ok
29	04:32:50:193PM	Plasma	Ok
30	04:46:43:317PM	Plasma	Ok
31	05:01:55:223PM	Plasma	Ok
32	05:14:58:333PM	Plasma	Ok
33	05:30:12:877PM	Plasma	Ok
34	05:43:04:163PM	Plasma	Ok
35	05:55:53:823PM	Plasma	Ok