Alcator C-Mod Run 1090715 Information

Miniproposals

Miniproposal: 557

Date Filed: 7/13/2009

Title: Commisioning of new divertor heat flux diagnostics

First Author: Brian Labombard

Session Leader: Brian Labombard (shots 1-36)

Operators
Session leader(s):	Brian Labombard
Physics operator(s):	Ian Hutchinson
Engineering operator(s):	Andy Pfeiffer,Sam Pierson,Gary Dekow

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

Session Leader Plans

Entered: Jul 15 2009 08:42:04:870AM

Author: Brian Labombard

Run Plan for 1090715

MP#557 "Commissioning of new divertor heat flux diagnostics"

Goal
A new set of heat-flux instruments was installed to diagnose C-Mod's lower divertor.
We wish to test and optimize the performance of these diagnostics, with particular focus on
examining the heat-flux footprint around the outer divertor strike point. We also wish to
condition-up the scanning probes, which requires some careful gap programming and repeated
shots.

Approach
Dial-up some standard lower-single null discharges with controlled inner/outer gaps but
also with some control on the outer divertor strike point location. The latter may be
accomplished by preprogramming the boundary shape. However, it is more desirable to
implement a feedback control of the strike-point position, if possible.
We will start by taking a series of nearly identical discharges with stationary or slow sweeps
of the outer divertor strike-point, watching the behavior of the heat-flux sensors. A coarse
density scan may be performed if things go well. Some cell access may be required to debug
systems. We should start with 0.8 MA discharges, but then push to 1.0 MA to increase heat
flux signals.

Key Diagnostics: Divertor heat-flux sensors, divertor IR system, all scanning probe systems
(ASP, FSP, WASP),

Desired but not required: edge Thomson, gas-puff imaging (diodes and fast camera)

We may need multiple cell entries to debug diagnosics.

Plan
Start with a recent 0.8 MA, 5.4 tesla discharge (or something close and tweak it).
- Left gap ~1.2 cm, right gap ~1.6 cm
- Outer divertor strike point on the lower part of tile number 2.
- Set NL04 = 0.6e20 m^-2
- If NINJA is available, fill to 10 PSI D2
- ICRF - may piggyback after 1.2 on some shots

- Fixed Strike Points -
A. NL04 ~ 0.6, Ip = 0.8 MA - 5 shots
Adjust gaps as necessary to optimize scanning probe
targeting. Try to hold outer divertor strike point at a fixed location during
the shot - the lower half of tile number two. We want to hold the heat flux footprint
on the outer divertor fixed so that the calorimeter delta-Ts (before and after shot)
can be used to map it out.

Assess temperature rises. We may want to change to 1.0 MA. If so, we will need to take more
shots to set this up. Assuming that we stay at 0.8 MA, do the following:

- Shot-by-Shot Strike Point Scan -
B. NL04 ~ 0.6, Ip = 0.8 MA - 5 shots
Slowly march the strikepoint up the divertor plate on a shot-by-shot basis - about
a centimeter in the vertical position of the strike point per shot.

C. NL04 ~ 0.8, Ip = 0.8 MA - 5 shots
Repeat C at this new density

D. NL04 ~ 1.0, Ip = 0.8 MA - 5 shots
Repeat C at this new density

E. NL04 ~ 1.2, Ip = 0.8 MA - 5 shots
Repeat C at this new density

F. NL04 ~ 0.6, Ip = 1.0 MA - 5 shots
Repeat C at this new density and current

Physics Operators Plans

Session Leader Summaries

Entered: Jul 15 2009 11:03:21:960PM

Author: Brian Labombard

Run Summary for 1090715

MP#557 "Commissioning of new divertor heat flux diagnostics"

This was a productive run. The primary goal was to develop discharges with controlled
outer divertor strike point and to use this to test and optimize embedded heat flux
sensor signals. Ian managed to implement some kind of feedback control of the
outer divertor strike point in just a few shots. By shot 7 we had a 0.8 MA LSN discharge
with the strike point roughly stationary on Langmuir probe #4 on the outer divertor and
were confident enough to start exercising the ASP, FSP and WASP systems. (As an aside,
we discovered that the coil polarity on the A-port WASP drive was reversed. We corrected
it during a cell entry.) Unfortunately, surface heat flux sensor number 4 and 10 decided to
die early, leaving us with only 4 good remaining sensors: 1, 3, 5 and 9. And with
the strike point on Langmuir probe #4, surface sensor #5 is just slightly below the
heat flux footprint. All the while, Jim Terry and Josh Payne were busily trying to get the
IR camera up and running. View alignment was the primary obstacle, followed by the lack of
a trigger. Numerous cell entries were required. Anyway, we pushed on with trying to
fix the strikepoint onto probe #1. This proved to be more difficult, requiring
many tweaks and shots without firing the scanning probes, just to be safe.
By shot 21 we started poking the probes at a reasonable discharge with strike points
hovering around probes 1 and 2. On shot 22 the IR camera demonstrated success - a
spectacular movie of strike point heat on the J-divertor ramped tiles! Hat's off
to Jim Terry and Josh Payne for cobbling this together under the pressure. Still, with the
strike point on 1-2, not a lot of heat was arriving on the good surface heat flux
sensors. The calorimeters appeared to respond ok (11 of 14 working), but the timescales look
a bit long - something that will need more analysis. Finally, we ran
shots with the strikepoint on probe#2 (shots 28 and beyond). This lead to some
nice reproducible temperature rises on surface sensor #5 during the shot, roughly 300 C.
These should provide a cross-calibration with the IR system. Having done the strikepoint
control part of the MP, we started varying the density. Shot 35 was the first attempt
at this (NL04 ~ 0.8e20). We will pick up on this in tomorrow's run.
___________________________________________________________________________________
Shot log

1-no power test. ASP, FSP scanning at 0.62s
2-LSN, NL04=0.58, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point sweeps up divertor plate. Analysis jobs not running ("wrong ELF class: ELFCLASS32")

Start strike-point control (target: probe#4)

3-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point sweeping up plate. Surface TC sensor #4 is now dead.
4-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Slower strike point sweep up plate.
5-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point on probe #4 after 0.75s. SSEP is now more negative, but ramps up after 1 s.
6-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point on probe #4. SSEP at -2 cm, flat.
7-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(0), FSP(-15), WASP(rho=5) scanning at 0.7, 0.9, 1.1s
8- no power
9-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-10), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
Strike point steady on probe#4
10- no probes scanning
Strike point steady on probe#4
11-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(0), FSP(-10), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
Strike point steady on probe#4
12-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(+2), FSP(-7), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
ASP at separatrix, FSP could be deeper, WASP position uncertain.
13-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-5), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
ASP near sep., FSP near sep. cleaning up, WASP scanning the wrong direcion!
14-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-5), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
ASP near sep. on first scan, FSP near sep., WASP scanning the wrong direction!

Try strike point control on probe#1

15-LSN, NL04=0.69, Ip=0.8, Bt=5.3, no probes scanning.
Asking for strike point on tile#1 -- disrupts at 1.4s -- ends up limited on the outer divertor shelf.
16-LSN, lost NL04, Ip=0.8, Bt=5.3, no probes scanning.
17-LSN, NL04=0.59, Ip=0.8, Bt=5.3, no probes scanning.
Strike point hovers around probes #1 and 2.
18-LSN, NL04=0.59, Ip=0.8, Bt=5.3, no probes scanning.
Strike point hovers around probes #1 and 2.
19-LSN, NL04=0.6, Ip=0.8, Bt=5.3, no probes scanning.
Max plasma pressure on probe#2.
20-LSN, NL04=0.62, Ip=0.8, Bt=5.3, no probes scanning.
Max plasma pressure on probe#2.
21-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(-5), WASP(rho=5) scanning at 0.7, 0.9, 1.1s
ASP and WASP need to be deeper.
22-fizzle
23-LSN, NL04=0.62, Ip=0.8, Bt=5.3, No probes scanning.
Divertor IR records first heatflux footprint on this shot.
24-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(-2), WASP(rho=2) scanning at 0.7, 0.9, 1.1s, FSP(-5) at 1.1s
ASP,FSP,WASP need to be deeper.
25-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP(0), WASP(rho=0) scanning at 0.7, 0.9, 1.1s, FSP(-1) at 1.1s
ASP,FSP,WASP still need to be deeper.
26-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+2), WASP(rho=-1) scanning at 0.7, 0.9, 1.1s, FSP(+2) at 1.1s
ASP-first scan at sep., FSP-could be deeper, WASP- at sep.
27-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+2.5)WASP(rho=-1) scanning at 0.6, 0.9, 1.2s, FSP(+6) at 1.2s
Good data. IR camera recorded images.

Change strike point to probe#3
28-LSN, NL04=0.61, Ip=0.8, Bt=5.3, No probes scanning
strike point on probe#3
29-fizzle

30-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-1) scanning at 0.6, 0.9, 1.2s, FSP(-5) at 1.2s
Strike point on probe#3
ASP-excellent, cleans up on first scan
WASP - good
FSP- scanning at wrong time - should have been 0.9s
31-fizzle
32-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s
ASP-excellent
WASP - no data. cPCI error
FSP- no data. cPCI error
33-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s
ASP-excellent
WASP - excellent
FSP- could be deeper
34-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-3) at 0.9s
ASP - in fluctuation mode - Easts floating, Wests sweeping
WASP - in fluctuation mode - Easts floating, Wests sweeping
FSP - in fluctuation mode - Easts floating, Wests sweeping
34- IR camera image of this shot, with sensor locations on Tile#3 lighting up.
Surface TC#5 on tile#3 sees 300 C rise. This could be a good shot for cross-calibration.

Go to NL04~0.8
35-LSN, NL04=0.8, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s
ASP-could be deeper
WASP - could be deeper
FSP- too deep
36- fizzle

Physics Operator Summaries

Entered: Jul 15 2009 05:03:12:737PM

Author: Ian Hutchinson

Strkpsi control for testing of the divertor calorimetry.

Summary
_______

Strkpsi control was implemented successfully, relaxing the control of
zxl. For control at low positions it was necessary to draw the rxl ramping to
about -2cm (still under PCS control) by the end of the shot. This
provided the ability to meet the demand for a low strike point without
excessively moving the x-point down.

Scorecard
---------

Shot,Duration(s),Ipmax(MA),Result Shot,Duration(s),Ipmax,Result | 01 0.000 0.002 Dud | 02 1.970 0.825 Plasma | | 03 1.969 0.823 Plasma | 04 1.968 0.818 Plasma | | 05 1.967 0.812 Plasma | 06 1.966 0.813 Plasma | | 07 1.966 0.818 Plasma | 08 0.000 0.002 Dud | | 09 1.311 0.824 Plasma | 10 1.968 0.823 Plasma | | 11 1.967 0.821 Plasma | 12 1.966 0.820 Plasma | | 13 1.967 0.819 Plasma | 14 1.967 0.821 Plasma | | 15 1.447 0.826 Plasma | 16 1.584 0.830 Plasma | | 17 1.964 0.826 Plasma | 18 1.965 0.828 Plasma | | 19 1.964 0.829 Plasma | 20 1.964 0.830 Plasma | | 21 1.963 0.835 Plasma | 22 0.000 0.051 Fizzle | | 23 1.964 0.834 Plasma | 24 1.964 0.833 Plasma | | 25 1.963 0.833 Plasma | 26 1.964 0.832 Plasma | | 27 1.964 0.830 Plasma | 28 1.962 0.829 Plasma | | 29 0.000 0.086 Plasma | 30 1.963 0.829 Plasma | | 31 0.000 0.054 Fizzle | 32 1.965 0.830 Plasma | | 33 1.963 0.829 Plasma | 34 1.964 0.826 Plasma | | 35 1.947 0.819 Plasma | 36 0.000 0.052 Fizzle | *** Consider increasing shotmax. 36 Date 1090715: 36 shots. 31 plasmas. 3 fizzles. 2 duds. 0 System Error. (Plasma = Ip gt 60.0 kA Dud = H_alpha lt 0.40 V) Total plasma duration: 57.39 s (exceeding -100 kA)

The duds were deliberate gas and no-power shots. Fizzles appeared to
be vertical problems.

Session Leader Comments

Jul 15 2009 09:23:27:573AM 1090715002 Brian Labombard 2-LSN, NL04=0.58, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point sweeps up divertor plate. Analysis jobs not running ("wrong ELF class: ELFCLASS32")

Jul 15 2009 09:35:06:043AM 1090715003 Brian Labombard 3-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point sweeping up plate. Surface TC sensor #4 is now dead.

Jul 15 2009 09:49:51:793AM 1090715004 Brian Labombard 4-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Slower strike point sweep up plate.

Jul 15 2009 10:00:45:090AM 1090715005 Brian Labombard 5-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point on probe #4 after 0.75s. SSEP is now more negative, but ramps up after 1 s.

Jul 15 2009 10:10:23:917AM 1090715006 Brian Labombard 6-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning.
Strike point on probe #4. SSEP at -2 cm, flat.

Jul 15 2009 11:36:09:247AM 1090715009 Brian Labombard 9-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-10), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
Strike point steady on probe#4

Jul 15 2009 11:08:26:870AM 1090715010 Brian Labombard 10 - No probes scanning - workstation died and I couldn't check the setup.

Jul 15 2009 11:36:43:060AM 1090715011 Brian Labombard 11-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(0), FSP(-10), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
Strike point steady on probe#4

Jul 15 2009 11:37:21:637AM 1090715012 Brian Labombard 12-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(+2), FSP(-7), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
ASP at separatrix, FSP could be deeper, WASP position uncertain.

Jul 15 2009 12:18:59:450PM 1090715013 Brian Labombard 13-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-5), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
ASP near sep., FSP near sep. cleaning up, WASP scanning the wrong direction!

Jul 15 2009 12:19:45:777PM 1090715014 Brian Labombard 14-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-5), WASP(rho=2) scanning at 0.7, 0.9, 1.1s
ASP near sep. on first scan, FSP near sep., WASP scanning the wrong direcion!

Jul 15 2009 12:20:31:307PM 1090715015 Brian Labombard 15-LSN, NL04=0.69, Ip=0.8, Bt=5.3, no probes scanning.
Asking for strike point on tile#1 -- disrupts at 1.4s -- ends up limited on the outer divertor shelf

Jul 15 2009 12:44:27:810PM 1090715017 Brian Labombard 17-LSN, NL04=0.59, Ip=0.8, Bt=5.3, no probes scanning.
Strike point hovers around probes #1 and 2.

Jul 15 2009 12:59:57:073PM 1090715018 Brian Labombard 18 - a repeat of shot 17. No probes scanning.

Jul 15 2009 01:12:43:200PM 1090715019 Brian Labombard 19-LSN, NL04=0.6, Ip=0.8, Bt=5.3, no probes scanning.
Max plasma pressure on probe#2.

Jul 15 2009 01:43:32:780PM 1090715020 Brian Labombard 20-LSN, NL04=0.62, Ip=0.8, Bt=5.3, no probes scanning.
Max plasma pressure on probe#2.

Jul 15 2009 01:44:59:800PM 1090715021 Brian Labombard 21-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(-5), WASP(rho=5) scanning at 0.7, 0.9, 1.1s
ASP and WASP need to be deeper.

Jul 15 2009 02:18:00:377PM 1090715023 Brian Labombard 23-LSN, NL04=0.62, Ip=0.8, Bt=5.3, No probes scanning.
Strike point on probe#2.
Divertor IR records first heatflux footprint on this shot!

Jul 15 2009 02:32:57:640PM 1090715024 Brian Labombard 24-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(-2), WASP(rho=2) scanning at 0.7, 0.9, 1.1s, FSP(-5) at 1.1s
ASP,FSP,WASP need to be deeper.

Jul 15 2009 02:45:11:563PM 1090715025 Brian Labombard 25-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(0), WASP(rho=0) scanning at 0.7, 0.9, 1.1s, FSP(-1) at 1.1s
ASP,FSP,WASP still need to be deeper.

Jul 15 2009 03:02:13:347PM 1090715026 Brian Labombard 26-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+2), WASP(rho=-1) scanning at 0.7, 0.9, 1.1s, FSP(+2) at 1.1s
ASP-first scan at sep., FSP-could be deeper, WASP- at sep.

Jul 15 2009 03:24:57:377PM 1090715027 Brian Labombard 27-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+2.5)WASP(rho=-1) scanning at 0.6, 0.9, 1.2s, FSP(+6) at 1.2s
Good data. IR camera recorded images

Jul 15 2009 03:25:16:267PM 1090715028 Brian Labombard 28-LSN, NL04=0.61, Ip=0.8, Bt=5.3, No probes scanning
strike point on probe#3

Jul 15 2009 04:21:08:140PM 1090715032 Brian Labombard 32-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s
ASP-excellent
WASP - no data. cPCI error
FSP- no data. cPCI error

Jul 15 2009 04:48:11:423PM 1090715033 Brian Labombard 33-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s
ASP-excellent
WASP - excellent
FSP- could be deeper

Jul 15 2009 04:48:48:390PM 1090715034 Brian Labombard 34-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-3) at 0.9s
ASP - in fluctuation mode - Easts floating, Wests sweeping
WASP - in fluctuation mode - Easts floating, Wests sweeping
FSP - in fluctuation mode - Easts floating, Wests sweeping

Next: go to nNL04 ~ 0.8

Jul 15 2009 05:00:26:657PM 1090715034 Brian Labombard 34- IR camera image of this shot, with sensor locations on Tile#3 lighting up.
Surface TC#5 on tile#3 sees 300 C rise. This could be a good shot for cross-calibration.

Physics Operator Comments

Jul 15 2009 08:50:50:963AM Ian Hutchinson Load from 1070714024.
Lower current to 0.8MA.
Right and left gaps are about 1.1cm. So move rcur in by 2mm.
nl04 to 0.6
Sest 9-12 to Ip ref.
Type in strkpsi.
Call
Zero values. Apply.
Controller. Make the keywords to be all the usual except. Wolfe says, strkpsi
instead of ZXL IN allnames. CALL.OK. Verify the rate? Put .98.
Reference points are Rstrk-.62, Zstrk=-.52m defaults.
Load. Save as home/hutch/scratch 1010.
Load from 1090714026 for a gas valve test. Load.

Jul 15 2009 08:52:55:213AM 1090715001 Ian Hutchinson Gas puff only test. [Apparently not successful. PG5 not working.]

Load the proper shot from 1010.
Load.

Jul 15 2009 09:18:31:823AM 1090715002 Ian Hutchinson Plasma.

Turn on the strkpsi controller stepping up the proportional gain to 1.2 at 1s.
It turns off at 1.5s. Value is set at zero. Might be a bit high for Brian.
Lower the ZXL gain from max of 8, stepping down to 2 at 1s.
Load. Strange message about times. Acknowledge.

Jul 15 2009 09:34:48:150AM 1090715003 Ian Hutchinson Plasma. Looks as if strkpsi is doing something. It is pushed up slightly.

Double the gain on strkspi.
Reduce ZXL gain to low value after 1s.
Load. Adjusting matix load time message again.

Jul 15 2009 10:01:44:480AM 1090715004 Ian Hutchinson Plasma. Control seems slightly better.

ZXL gain to zero at .4s through 1.5s.
strkspsi gain to 5.
zcur to -15mm from -9mm to make more single null.

Jul 15 2009 10:04:23:277AM 1090715005 Ian Hutchinson Plasma. Obvious control of strkpsi later in shot.

Increase early gain of strkpsi. Decrease zxl early gain.
Increase zxu later in the shot to increase ssep.

Jul 15 2009 10:22:13:510AM 1090715006 Ian Hutchinson Plasma. Good control except for the OH1 crossover.

Tweak rcur out at .2s and .5s.
Tweak Ip rise. Load.

Jul 15 2009 10:30:44:433AM 1090715007 Ian Hutchinson Plasma. Runaways caused by initation bounce. Very early breakdown.

Tweak rxl out a bit at .5 to .6s.
Got the stupid message back and made incorrect timing of load.
So make the next a no power shot.

Jul 15 2009 10:41:34:277AM 1090715008 Ian Hutchinson No power shot

Jul 15 2009 11:01:17:433AM 1090715009 Ian Hutchinson Plasma. Disrupts at 1.3s. Monstrous injection.

Lower zxl gain at .2s to avoid oscillation I hope.

Jul 15 2009 11:11:36:463AM 1090715010 Ian Hutchinson Plasma.

Increase PG3 in segment 1 to 30V, to try to minimize runaways.

Jul 15 2009 11:23:15:527AM 1090715011 Ian Hutchinson Plasma. Still runaways.

Increase fill puff to 17ms from 15ms.

Jul 15 2009 11:37:58:543AM 1090715012 Ian Hutchinson Plasma.

ICEF4 to -1300 from -1290A.

Jul 15 2009 11:50:43:543AM 1090715013 Ian Hutchinson Plasma. Runaways still.

Fill puff to 19ms.

Jul 15 2009 12:03:36:653PM 1090715014 Ian Hutchinson Plasma.

strk coordinates are .62, -.52. We want to move the strikepoint down by
4cm. So we use keywords Zsout=-.56 Rsout=.624. These are not rstrk. An unfortunate error of documentation.

Move the EF1 crowbar to .15s.

Load.

Jul 15 2009 12:24:41:810PM 1090715015 Ian Hutchinson Plasma disrupts at 1.44s. Shape is very strangely distorted in trying to
keep the strikepoint low. Nominal strkpsi is -1mm. (Versus about +1mm).

Get rid of keywords on strkpsi. Set p-value to -.1mm.
Install an RXL ramp to -.04 at 1.5s.

Jul 15 2009 12:35:13:497PM 1090715016 Ian Hutchinson Plasma disrupts in rampdown.
Zeros EF2L at 1s.

Back off on RXL ramp to peak at -.021.
Install some more gradual steps in the release of strkpsi

Jul 15 2009 12:47:49:810PM 1090715017 Ian Hutchinson Plasma ramps down.

Increase strkpsi to -1.5mm.
Make ef2byef4 -3000 from -2000 at >1s

Jul 15 2009 01:09:57:040PM 1090715018 Ian Hutchinson Plasma ramps down. Forgot to load. A repeat.

Load.

Jul 15 2009 01:29:46:997PM 1090715019 Ian Hutchinson Plasma.

Lower zxl at .25s.
Increase strkpsi gain to 6 from 5.
Enable argon.

Jul 15 2009 01:42:55:497PM 1090715020 Ian Hutchinson Plasma to rampdown.

Reduce RXL during first .7s.
Increase clearin by 5mm to 0.
Load.

Jul 15 2009 01:55:41:470PM 1090715021 Ian Hutchinson Plasma to rampdown.

The oscillation in the first .7s seems to be triggered by the turn on of EF4byEF2
Turn on more gradually. Also draw the ICEF4 to be less positive at .3s which
appears to be a related issue.
Tweak the clearin up at .25s

Jul 15 2009 02:13:43:707PM 1090715022 Ian Hutchinson Fizzle for no obvious reason.

Jul 15 2009 02:38:39:250PM 1090715024 Ian Hutchinson Plasma.

Jul 15 2009 02:47:34:640PM 1090715025 Ian Hutchinson Plasma.

strkspi D to 1. Physics PID is then D=.001, P=6 (1/s). Should be a miniscule
effect.

Jul 15 2009 02:57:59:220PM 1090715026 Ian Hutchinson Plasma.

Jul 15 2009 03:19:35:503PM 1090715027 Ian Hutchinson Plasma.

Strkpsi to -.7mm. D to 3.
Adjust RXL in .4s time

Jul 15 2009 03:28:09:250PM 1090715028 Ian Hutchinson Plasma.

strkspi D to 6.

Jul 15 2009 03:44:02:390PM 1090715029 Ian Hutchinson Vertical position error throws the plasma away at about 80kA.
Can't really see why.

Jul 15 2009 03:56:54:033PM 1090715030 Ian Hutchinson Plasma. Injection at .63s attributed to ASP.

Jul 15 2009 04:21:40:173PM 1090715031 Ian Hutchinson Fizzle. Strong. Looks like a vertical problem.

Br offset to .0007 from .001.

Jul 15 2009 04:21:51:533PM 1090715032 Ian Hutchinson Plasma.

Jul 15 2009 04:39:30:360PM 1090715033 Ian Hutchinson Plasma.

Jul 15 2009 04:46:51:190PM 1090715034 Ian Hutchinson Plasma.

Raise nl04 to .8e20.

Jul 15 2009 05:00:49:503PM 1090715035 Ian Hutchinson Plasma.

Jul 15 2009 05:02:47:957PM 1090715036 Ian Hutchinson Fizzle.

Engineering Operator Comments

Shot Time Type Status Comment

1 08:48:55:963AM Test Bad Gas test H

2 09:03:17:417AM Plasma Ok

3 09:16:45:040AM Plasma Ok

4 09:33:25:747AM Plasma Ok

5 09:49:25:090AM Plasma Ok

6 10:02:24:933AM Plasma Ok

7 10:15:10:463AM Plasma Ok

8 10:27:44:857AM Plasma Bad Programming error

9 10:41:08:433AM Plasma Ok

10 10:53:57:137AM Plasma Ok

11 11:07:49:040AM Plasma Ok

12 11:20:32:370AM Plasma Ok

13 11:33:22:040AM Plasma Ok

14 11:46:21:510AM Plasma Ok

15 12:02:34:790PM Plasma Ok

16 12:18:36:043PM Plasma Ok

17 12:33:07:090PM Plasma Ok

18 12:45:58:667PM Plasma Ok

19 12:58:41:667PM Plasma Ok

20 01:18:06:323PM Plasma Ok

21 01:32:59:963PM Plasma Ok

22 01:52:25:437PM Plasma Ok

23 02:06:01:033PM Plasma Ok

24 02:19:45:017PM Plasma Ok

25 02:32:22:550PM Plasma Ok

26 02:45:39:580PM Plasma Ok

27 02:59:08:767PM Plasma Ok

28 03:12:35:143PM Plasma Ok

29 03:26:00:377PM Plasma Ok

30 03:38:38:847PM Plasma Ok

31 03:51:59:890PM Plasma Ok

32 04:04:36:330PM Plasma Ok

33 04:19:14:800PM Plasma Ok

34 04:31:50:017PM Plasma Ok

35 04:44:40:347PM Plasma Ok

36 04:58:54:360PM Plasma Ok

System Availability

Jul 15 2009 08:48:33:073AM

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 Most systems collecting data but not calibrated. WB2 and WB1 not attached. Jul 07 2009 01:00PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no Bottle Removed from the Cell, Piezo box on Igloo Removed. System in safe mode for In-Vessel Access May 30 2008 02:25PM (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 no Cyopump hardware is not yet reinstalled in the cell. Jul 14 2009 09:21PM (labombard) 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 no safely disabled; ready to be dismantled May 28 2008 10:22AM (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 power locked & tagged out; gate valve disabled May 28 2008 10:03AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,gung
ECDC no 6/10/09 Magnetron relocated to west wall in cell at H-port. All controls and hardware have been installed but need to be tested prior to full operation. Magnetron Unplugged and Red tagged, PEI breaker red tagged, Safe for In-Vessel Activity Jun 10 2009 02:35PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes The lower freq. 16 channels are ready. Still need calibration and signal level adjustments Jul 14 2009 12:15PM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge installed. Problem with controller - signal noisy. Jul 14 2009 09:11PM (labombard) 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, but NOT CALIBRATED. Ch 1 seems low, others reasonable. Jun 26 2009 08:25AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Operational, but NOT CALIBRATED Jun 26 2009 08:26AM (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 no Disconnect switch is open, reg tagged and locked. Shunt Trip Breaker is opened. Safe for in-vessel work. Jun 04 2008 12:24PM (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 no Transmission line disconnected. HV tagged out. Safe for machine entry. May 28 2008 08:16AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna no Transmission line disconnected. HV tagged out. Safe for machine entry. FFT out May 28 2008 08:17AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna no HV tagged. Safe for machine entry. loop dissembly started. May 28 2008 08:17AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
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 but processed data not in tree. WB1-LY not attached. Jul 07 2009 01:01PM (mlreinke) Matt Reinke Lyman alpha cameras labombard,mlreinke
McPherson no Pumped down and awaiting good vacuum conditions to allow plasma tests Jul 13 2009 10:08PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. NOT RECALIBRATED Jun 26 2009 11:25AM (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 Operational --- Uncalibrated and needs to be positioned at port Jun 25 2009 05:08PM (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 no Both HeNe and CO2 lasers have been shutdown. System is safe. May 30 2008 01:58PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,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 Operational ---- ECDC running as required Jun 19 2009 08:06AM (irby) 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 As of 7/8/09, the 50, 60, 75 and 88 (baseband, lsb and usb) are available. The 140GHz channel and swept frequency channel are online but untested for their cutoff frequencies. The 110 is offline Jul 14 2009 02:30PM (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 now at K-Hor. Set for 100 uA of current. Will up to 200 uA before first plasma Jun 18 2009 01:01PM (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 Midplane channel is operational, but ***uncalibrated*** Jul 14 2009 08:36AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma,zhang
TS - Edge no Expected availability: week of July 20 Jun 24 2009 01:32PM (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 cables attached, DAQ test run, ready for first plasma Jun 17 2009 03:42PM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Jul 15 2009 09:23:27:573AM	1090715002	Brian Labombard	2-LSN, NL04=0.58, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning. Strike point sweeps up divertor plate. Analysis jobs not running ("wrong ELF class: ELFCLASS32")
Jul 15 2009 09:35:06:043AM	1090715003	Brian Labombard	3-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning. Strike point sweeping up plate. Surface TC sensor #4 is now dead.
Jul 15 2009 09:49:51:793AM	1090715004	Brian Labombard	4-LSN, NL04=0.6, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning. Slower strike point sweep up plate.
Jul 15 2009 10:00:45:090AM	1090715005	Brian Labombard	5-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning. Strike point on probe #4 after 0.75s. SSEP is now more negative, but ramps up after 1 s.
Jul 15 2009 10:10:23:917AM	1090715006	Brian Labombard	6-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP, FSP, WASP not scanning. Strike point on probe #4. SSEP at -2 cm, flat.
Jul 15 2009 11:36:09:247AM	1090715009	Brian Labombard	9-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-10), WASP(rho=2) scanning at 0.7, 0.9, 1.1s Strike point steady on probe#4
Jul 15 2009 11:08:26:870AM	1090715010	Brian Labombard	10 - No probes scanning - workstation died and I couldn't check the setup.
Jul 15 2009 11:36:43:060AM	1090715011	Brian Labombard	11-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(0), FSP(-10), WASP(rho=2) scanning at 0.7, 0.9, 1.1s Strike point steady on probe#4
Jul 15 2009 11:37:21:637AM	1090715012	Brian Labombard	12-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(+2), FSP(-7), WASP(rho=2) scanning at 0.7, 0.9, 1.1s ASP at separatrix, FSP could be deeper, WASP position uncertain.
Jul 15 2009 12:18:59:450PM	1090715013	Brian Labombard	13-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-5), WASP(rho=2) scanning at 0.7, 0.9, 1.1s ASP near sep., FSP near sep. cleaning up, WASP scanning the wrong direction!
Jul 15 2009 12:19:45:777PM	1090715014	Brian Labombard	14-LSN, NL04=0.63, Ip=0.8, Bt=5.3, ASP(+2), FSP(-5), WASP(rho=2) scanning at 0.7, 0.9, 1.1s ASP near sep. on first scan, FSP near sep., WASP scanning the wrong direcion!
Jul 15 2009 12:20:31:307PM	1090715015	Brian Labombard	15-LSN, NL04=0.69, Ip=0.8, Bt=5.3, no probes scanning. Asking for strike point on tile#1 -- disrupts at 1.4s -- ends up limited on the outer divertor shelf
Jul 15 2009 12:44:27:810PM	1090715017	Brian Labombard	17-LSN, NL04=0.59, Ip=0.8, Bt=5.3, no probes scanning. Strike point hovers around probes #1 and 2.
Jul 15 2009 12:59:57:073PM	1090715018	Brian Labombard	18 - a repeat of shot 17. No probes scanning.
Jul 15 2009 01:12:43:200PM	1090715019	Brian Labombard	19-LSN, NL04=0.6, Ip=0.8, Bt=5.3, no probes scanning. Max plasma pressure on probe#2.
Jul 15 2009 01:43:32:780PM	1090715020	Brian Labombard	20-LSN, NL04=0.62, Ip=0.8, Bt=5.3, no probes scanning. Max plasma pressure on probe#2.
Jul 15 2009 01:44:59:800PM	1090715021	Brian Labombard	21-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(-5), WASP(rho=5) scanning at 0.7, 0.9, 1.1s ASP and WASP need to be deeper.
Jul 15 2009 02:18:00:377PM	1090715023	Brian Labombard	23-LSN, NL04=0.62, Ip=0.8, Bt=5.3, No probes scanning. Strike point on probe#2. Divertor IR records first heatflux footprint on this shot!
Jul 15 2009 02:32:57:640PM	1090715024	Brian Labombard	24-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(-2), WASP(rho=2) scanning at 0.7, 0.9, 1.1s, FSP(-5) at 1.1s ASP,FSP,WASP need to be deeper.
Jul 15 2009 02:45:11:563PM	1090715025	Brian Labombard	25-LSN, NL04=0.62, Ip=0.8, Bt=5.3, ASP(0), WASP(rho=0) scanning at 0.7, 0.9, 1.1s, FSP(-1) at 1.1s ASP,FSP,WASP still need to be deeper.
Jul 15 2009 03:02:13:347PM	1090715026	Brian Labombard	26-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+2), WASP(rho=-1) scanning at 0.7, 0.9, 1.1s, FSP(+2) at 1.1s ASP-first scan at sep., FSP-could be deeper, WASP- at sep.
Jul 15 2009 03:24:57:377PM	1090715027	Brian Labombard	27-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+2.5)WASP(rho=-1) scanning at 0.6, 0.9, 1.2s, FSP(+6) at 1.2s Good data. IR camera recorded images
Jul 15 2009 03:25:16:267PM	1090715028	Brian Labombard	28-LSN, NL04=0.61, Ip=0.8, Bt=5.3, No probes scanning strike point on probe#3
Jul 15 2009 04:21:08:140PM	1090715032	Brian Labombard	32-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s ASP-excellent WASP - no data. cPCI error FSP- no data. cPCI error
Jul 15 2009 04:48:11:423PM	1090715033	Brian Labombard	33-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-4) at 0.9s ASP-excellent WASP - excellent FSP- could be deeper
Jul 15 2009 04:48:48:390PM	1090715034	Brian Labombard	34-LSN, NL04=0.61, Ip=0.8, Bt=5.3, ASP(+4), WASP(rho=-2) scanning at 0.6, 0.9, 1.2s, FSP(-3) at 0.9s ASP - in fluctuation mode - Easts floating, Wests sweeping WASP - in fluctuation mode - Easts floating, Wests sweeping FSP - in fluctuation mode - Easts floating, Wests sweeping Next: go to nNL04 ~ 0.8
Jul 15 2009 05:00:26:657PM	1090715034	Brian Labombard	34- IR camera image of this shot, with sensor locations on Tile#3 lighting up. Surface TC#5 on tile#3 sees 300 C rise. This could be a good shot for cross-calibration.

Physics Operator Comments
Jul 15 2009 08:50:50:963AM		Ian Hutchinson	Load from 1070714024. Lower current to 0.8MA. Right and left gaps are about 1.1cm. So move rcur in by 2mm. nl04 to 0.6 Sest 9-12 to Ip ref. Type in strkpsi. Call Zero values. Apply. Controller. Make the keywords to be all the usual except. Wolfe says, strkpsi instead of ZXL IN allnames. CALL.OK. Verify the rate? Put .98. Reference points are Rstrk-.62, Zstrk=-.52m defaults. Load. Save as home/hutch/scratch 1010. Load from 1090714026 for a gas valve test. Load.
Jul 15 2009 08:52:55:213AM	1090715001	Ian Hutchinson	Gas puff only test. [Apparently not successful. PG5 not working.] Load the proper shot from 1010. Load.
Jul 15 2009 09:18:31:823AM	1090715002	Ian Hutchinson	Plasma. Turn on the strkpsi controller stepping up the proportional gain to 1.2 at 1s. It turns off at 1.5s. Value is set at zero. Might be a bit high for Brian. Lower the ZXL gain from max of 8, stepping down to 2 at 1s. Load. Strange message about times. Acknowledge.
Jul 15 2009 09:34:48:150AM	1090715003	Ian Hutchinson	Plasma. Looks as if strkpsi is doing something. It is pushed up slightly. Double the gain on strkspi. Reduce ZXL gain to low value after 1s. Load. Adjusting matix load time message again.
Jul 15 2009 10:01:44:480AM	1090715004	Ian Hutchinson	Plasma. Control seems slightly better. ZXL gain to zero at .4s through 1.5s. strkspsi gain to 5. zcur to -15mm from -9mm to make more single null.
Jul 15 2009 10:04:23:277AM	1090715005	Ian Hutchinson	Plasma. Obvious control of strkpsi later in shot. Increase early gain of strkpsi. Decrease zxl early gain. Increase zxu later in the shot to increase ssep.
Jul 15 2009 10:22:13:510AM	1090715006	Ian Hutchinson	Plasma. Good control except for the OH1 crossover. Tweak rcur out at .2s and .5s. Tweak Ip rise. Load.
Jul 15 2009 10:30:44:433AM	1090715007	Ian Hutchinson	Plasma. Runaways caused by initation bounce. Very early breakdown. Tweak rxl out a bit at .5 to .6s. Got the stupid message back and made incorrect timing of load. So make the next a no power shot.
Jul 15 2009 10:41:34:277AM	1090715008	Ian Hutchinson	No power shot
Jul 15 2009 11:01:17:433AM	1090715009	Ian Hutchinson	Plasma. Disrupts at 1.3s. Monstrous injection. Lower zxl gain at .2s to avoid oscillation I hope.
Jul 15 2009 11:11:36:463AM	1090715010	Ian Hutchinson	Plasma. Increase PG3 in segment 1 to 30V, to try to minimize runaways.
Jul 15 2009 11:23:15:527AM	1090715011	Ian Hutchinson	Plasma. Still runaways. Increase fill puff to 17ms from 15ms.
Jul 15 2009 11:37:58:543AM	1090715012	Ian Hutchinson	Plasma. ICEF4 to -1300 from -1290A.
Jul 15 2009 11:50:43:543AM	1090715013	Ian Hutchinson	Plasma. Runaways still. Fill puff to 19ms.
Jul 15 2009 12:03:36:653PM	1090715014	Ian Hutchinson	Plasma. strk coordinates are .62, -.52. We want to move the strikepoint down by 4cm. So we use keywords Zsout=-.56 Rsout=.624. These are not rstrk. An unfortunate error of documentation. Move the EF1 crowbar to .15s. Load.
Jul 15 2009 12:24:41:810PM	1090715015	Ian Hutchinson	Plasma disrupts at 1.44s. Shape is very strangely distorted in trying to keep the strikepoint low. Nominal strkpsi is -1mm. (Versus about +1mm). Get rid of keywords on strkpsi. Set p-value to -.1mm. Install an RXL ramp to -.04 at 1.5s.
Jul 15 2009 12:35:13:497PM	1090715016	Ian Hutchinson	Plasma disrupts in rampdown. Zeros EF2L at 1s. Back off on RXL ramp to peak at -.021. Install some more gradual steps in the release of strkpsi
Jul 15 2009 12:47:49:810PM	1090715017	Ian Hutchinson	Plasma ramps down. Increase strkpsi to -1.5mm. Make ef2byef4 -3000 from -2000 at >1s
Jul 15 2009 01:09:57:040PM	1090715018	Ian Hutchinson	Plasma ramps down. Forgot to load. A repeat. Load.
Jul 15 2009 01:29:46:997PM	1090715019	Ian Hutchinson	Plasma. Lower zxl at .25s. Increase strkpsi gain to 6 from 5. Enable argon.
Jul 15 2009 01:42:55:497PM	1090715020	Ian Hutchinson	Plasma to rampdown. Reduce RXL during first .7s. Increase clearin by 5mm to 0. Load.
Jul 15 2009 01:55:41:470PM	1090715021	Ian Hutchinson	Plasma to rampdown. The oscillation in the first .7s seems to be triggered by the turn on of EF4byEF2 Turn on more gradually. Also draw the ICEF4 to be less positive at .3s which appears to be a related issue. Tweak the clearin up at .25s
Jul 15 2009 02:13:43:707PM	1090715022	Ian Hutchinson	Fizzle for no obvious reason.
Jul 15 2009 02:38:39:250PM	1090715024	Ian Hutchinson	Plasma.
Jul 15 2009 02:47:34:640PM	1090715025	Ian Hutchinson	Plasma. strkspi D to 1. Physics PID is then D=.001, P=6 (1/s). Should be a miniscule effect.
Jul 15 2009 02:57:59:220PM	1090715026	Ian Hutchinson	Plasma.
Jul 15 2009 03:19:35:503PM	1090715027	Ian Hutchinson	Plasma. Strkpsi to -.7mm. D to 3. Adjust RXL in .4s time
Jul 15 2009 03:28:09:250PM	1090715028	Ian Hutchinson	Plasma. strkspi D to 6.
Jul 15 2009 03:44:02:390PM	1090715029	Ian Hutchinson	Vertical position error throws the plasma away at about 80kA. Can't really see why.
Jul 15 2009 03:56:54:033PM	1090715030	Ian Hutchinson	Plasma. Injection at .63s attributed to ASP.
Jul 15 2009 04:21:40:173PM	1090715031	Ian Hutchinson	Fizzle. Strong. Looks like a vertical problem. Br offset to .0007 from .001.
Jul 15 2009 04:21:51:533PM	1090715032	Ian Hutchinson	Plasma.
Jul 15 2009 04:39:30:360PM	1090715033	Ian Hutchinson	Plasma.
Jul 15 2009 04:46:51:190PM	1090715034	Ian Hutchinson	Plasma. Raise nl04 to .8e20.
Jul 15 2009 05:00:49:503PM	1090715035	Ian Hutchinson	Plasma.
Jul 15 2009 05:02:47:957PM	1090715036	Ian Hutchinson	Fizzle.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:48:55:963AM	Test	Bad	Gas test H
2	09:03:17:417AM	Plasma	Ok
3	09:16:45:040AM	Plasma	Ok
4	09:33:25:747AM	Plasma	Ok
5	09:49:25:090AM	Plasma	Ok
6	10:02:24:933AM	Plasma	Ok
7	10:15:10:463AM	Plasma	Ok
8	10:27:44:857AM	Plasma	Bad	Programming error
9	10:41:08:433AM	Plasma	Ok
10	10:53:57:137AM	Plasma	Ok
11	11:07:49:040AM	Plasma	Ok
12	11:20:32:370AM	Plasma	Ok
13	11:33:22:040AM	Plasma	Ok
14	11:46:21:510AM	Plasma	Ok
15	12:02:34:790PM	Plasma	Ok
16	12:18:36:043PM	Plasma	Ok
17	12:33:07:090PM	Plasma	Ok
18	12:45:58:667PM	Plasma	Ok
19	12:58:41:667PM	Plasma	Ok
20	01:18:06:323PM	Plasma	Ok
21	01:32:59:963PM	Plasma	Ok
22	01:52:25:437PM	Plasma	Ok
23	02:06:01:033PM	Plasma	Ok
24	02:19:45:017PM	Plasma	Ok
25	02:32:22:550PM	Plasma	Ok
26	02:45:39:580PM	Plasma	Ok
27	02:59:08:767PM	Plasma	Ok
28	03:12:35:143PM	Plasma	Ok
29	03:26:00:377PM	Plasma	Ok
30	03:38:38:847PM	Plasma	Ok
31	03:51:59:890PM	Plasma	Ok
32	04:04:36:330PM	Plasma	Ok
33	04:19:14:800PM	Plasma	Ok
34	04:31:50:017PM	Plasma	Ok
35	04:44:40:347PM	Plasma	Ok
36	04:58:54:360PM	Plasma	Ok