Alcator C-Mod Run 1120117 Information

Miniproposals

Miniproposal: 296

Date Filed: 5/14/2001

Title: Confirmation of Thomson scattering density calibration using electron cyclotron emission cutoffs

First Author: Jerry Hughes

Session Leader: Jerry Hughes (shots 26-31)

Miniproposal: 607

Date Filed: 6/16/2010

Title: Optimize the Gate Timing for the Thomson Scattering Data Acquisition System

First Author: Yunxing Ma

Session Leader: Jerry Hughes (shots 1-31)

Operators
Session leader(s):	Jerry Hughes,Jerry Hughes
Physics operator(s):	Syunichi Shiraiwa
Engineering operator(s):	Bill Cochran,Gary Dekow,Ed Fitzgerald

Engineering Operator Run Comment
MP607 "Optimize the Gate Timing for the Thomson Scattering Data Acquisit

Session Leader Plans

Entered: Jan 13 2012 11:40:23:223AM

Author: Jerry Hughes

SL run plan for 17 Jan 2012

MP607 "Optimize the Gate Timing for the Thomson Scattering Data Acquisition System"
MP296 "Confirmation of Thomson scattering density calibration using electron cyclotron emission cutoffs"

Objective:

The main purpose of the run is to shakedown the upgraded Thomson scattering
system in plasma. We will (a) optimize alignment of the collection fiber plate
with the YAGs, (b) optimize integrator gate timing, (c) compare Te profiles
with Te from ECE and perhaps Ti from Hirex, and (d) obtain density calibration
data using ECE cutoffs.

ICRF and LH are not requested, although they may piggyback upon the SL's approval. Testing of the new divertor impurity seeding valves may also proceed
at low input levels.

Additionally, the PO may be requested to adjust the X-point and strike point position. This will be to evaluate the Ohmic confinement and rotation as a
function of strike position (floor vs. vertical plate).

Gas request:
D2 majority fueling
1psi Ar in B-side lower for Hirex
10 psi D2 in NINJA
If H-div and B-div are working, fill with either Ne or N2, depending on
feedback from Wolfe + Lipschultz

Diagnostic request:
GPC set to 5.4T. GPC2 optimized for 4.0T
Hirex available for Ti
DNB is requested, if available.

Run plan:

1. The run will start with a series of 5.4T, 1MA plasmas. Target nl04 = 7e19.
PO may use 1100708021 as a reference.

The first few shots will be used to optimize the alignment of the TS fiber
plate. Also, the TS team will monitor a scope attached to the TS DAQ in order
to check the pulse and gate timing. Frequent cell access will be required to
troubleshoot and to switch inputs to the scope.

For some shots, adjustment of the outer strike point position will be
requested.

2a. When alignment and timing are optimized, reduce Bt to 4.0T. Target nl04
demand should be ramped from 1e20 to 2e20 in order to cutoff GPC2. If q is too
low in this setup, reduce Ip to 0.9MA.

2b. Once density ramp is established, tweak Bt in increments of 0.1T in order
to obtain cutoff data at additional radii.

Physics Operators Plans

Entered: Jan 17 2012 08:35:54:650AM

Author: Syunichi Shiraiwa

PO plan for 17 Jan 2012

(note : this entry is not completed)

MP607 "Optimize the Gate Timing for the Thomson Scattering Data Acquisition System" , Yunxing Ma
MP296 "Confirmation of Thomson scattering density calibration using electron cyclotron emission cutoffs" Jerry Hughes

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

Run begins at 09:00 and ends at 17:00

Power systems as on: 1120105019 (5.4T, 0.8MA, 8e19, LSN)

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

Gas setup:

B-Top with 6 psi D2 Hybrid enabled (PG4)
B-side lower with 1 psi Ar Hybrid DISABLED (PG1)
B-side upper as is Hybrid DISABLED (PG2)
B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
H-bot with 4psi Ne Hybrid enabled (PG5)
NINJA 10 psi D2, DISABLED

B-div, Hybrid DISABLED (PG6)
H-div, Hybrid DISABLED (PG7)
(H-div and B-div does not have independent plenum)

Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus + LoWEUS
Z-bolo shutter should be closed unless requested by physop

Check with the physop before opening other diagnostic gate-valves or shutters.

Torvac gatevalve toggle (yes/no): no

Boronization(yes/no): no
Overnight ECDC (yes/no): YES
ICRF(yes/no): no
LH(yes/no): no
Cryopump (yes/no): yes
DNB (yes/no): yes
Impurity blow-off injection: yes

Vessel temperature: 35/35/35

------------------------------
ECDC Parameters
------------------------------
gas and pressure: D2 at 2e-4 Torr
sweep: 44/45/103 cm
scan: 20/120 s

------------------------------
LH (request for low power coupling study)
------------------------------
Set LH launcher 5mm behind the GH limiter
Set WG switch to dummy load.

------------------------------
Shot Plan
------------------------------

First few shots will be gas test. We will take case 1 of below, and if we need more shot
to open main piezo, we will take case 2 and 3.

0) Gas test
(case 1)
H-bot with 4psi Ne Hybrid enabled (PG5)
Set H-bot (PG5) to 50 V from -1.9 to -1.4
Saved as 1120117001 in /home/shiraiwa/pcs

(case 2)
DISABLE H-bot, and ENABLE B-DIVERTOR
Set B_div (PG6) to 50 V from -1.9 to -1.4
Set PG5 to zero
Saved as 1120117002 in /home/shiraiwa/pcs

(case 3)
DISABLE B_div, and ENABLE H-DIVERTOR
Set H_div (PG7) to 50 V from -1.9 to -1.4
Set PG6 to zero
Saved as 1120117003 in /home/shiraiwa/pcs

1) Load 1120105019 (5.4T, 0.8MA, 8e19, LSN)
Adjust Ip to 1MA
Adjust density target from nl04 9e19 to 8e19.

Saved as 1120117004 in /home/shiraiwa/pcs

Session Leader Summaries

Entered: Jan 17 2012 05:11:22:650PM

Author: Jerry Hughes

Following some gas tests, we had a series of shots (5--24) to (a) align the
TS fiber plate to the laser image using plasma and (b) to verify the correct
gate timing for the TS integrators. Most channels with measurable signal were
evaluated in this manner, and the bottom line is the timing looks very good.

We ended the day with 2 ECE cutoff shots (27, 30) at 4.0T and 3.9T.

The last shot was an attempt at a locked-mode shot for Hirex calibration, but it
resulted in a fizzle, like many of our shots.

We will get a preliminary calibration in the tree ASAP and get our analysis
codes working again.

Also it became clear today that we are not getting as much scattered energy as
we expect with the new setup. This will require some troubleshooting.

Physics Operator Summaries

Entered: Jan 17 2012 05:45:42:270PM

Author: Syunichi Shiraiwa

PO Summary 1120117

(this entry is under construction)

Today, the machine worked well.

1) Gas test
All test for H-bot/B-div/H-div was performed
B-main did not puff initially, but it started to work after appling 40ms 100V pulse (shot #4)

2) TS optimization

3) Cross calibration of TS with ECE using high density discharges.

4) On the last shot, the locked mode calibration was tried, but we got a fizzle probably
due to a previous disruption.

Session Leader Comments

Jan 17 2012 09:22:42:960AM 1120117002 Jerry Hughes Shot 2.

Gas test.

Put YAGs in this time, 10 pulses each.
FERA triggers. There's the stray light on FERA 40.
Alignment channels are showing lots of signal.

Good laser energy + gate trace on the scope.
Save as shot002.csv

Jan 17 2012 09:30:12:543AM 1120117003 Jerry Hughes Shot 3

Another gas test.

Another 10 pulses from each YAG

save scope trace as shot003.csv
CH1: FERA gate complement
CH2: GLUE out (YAG2)
CH3: null
CH4: null

Jan 17 2012 09:40:46:510AM 1120117004 Jerry Hughes Shot 4

Another gas test.

Set YAG2 to 49 pulses, YAG1 to 50.
This way the scope will show us the YAG1 energy pulse.

saved results as shot004.csv
CH1: FERA gate complement
CH2: FERA 00 (YAG1)
CH3: null
CH4: null

Jan 17 2012 10:05:36:943AM 1120117005 Jerry Hughes Shot 5

Plasma attempt.

Both YAG1, YAG2 to 50 pulses each.

Agilent Scope:
CH1: FERA 02
CH2: FERA 00 (YAG2)
CH3: FERA 44
CH4: FERA 45

Not much signal evident on these channels

Saved file as shot005.csv

A number of FERA channels see signal. Looks like the first TS data with the
new lasers has been obtained

Jan 17 2012 10:24:25:240AM 1120117006 Jerry Hughes Shot 6

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.
Yunxing makes an adjustment to the fiber plate.

Agilent Scope:
CH1: FERA 30
CH2: FERA 00 (YAG2)
CH3: FERA 31
CH4: FERA 32

Saved file as shot006.csv

Clear TS pulses digitized on all 3 of the tested channels

Jan 17 2012 10:34:57:037AM 1120117007 Jerry Hughes Shot 7

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.
Yunxing makes another adjustment to the fiber plate.

Agilent Scope:
CH1: FERA 49
CH2: FERA 00 (YAG2)
CH3: FERA 56
CH4: FERA 14

Saved file as shot007.csv

Fairly clear timing signatures on all 3 of these test channels.

Jan 17 2012 10:49:57:653AM 1120117008 Jerry Hughes Shot 8

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.
Yunxing makes another adjustment to the fiber plate.
Also he switched FERA inputs 40 and 41

Agilent Scope:
CH1: FERA 22
CH2: FERA 00 (YAG2)
CH3: FERA 06
CH4: FERA 52

Saved file as shot008.csv

Clear timing signatures on these 3 test channels.

Jan 17 2012 11:09:05:167AM 1120117009 Jerry Hughes Shot 9

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.
Yunxing makes another adjustment to the fiber plate.

Agilent Scope:
CH1: FERA 29
CH2: FERA 00 (YAG2)
CH3: FERA 02
CH4: FERA 39

Saved file as shot009.csv

Got clear timing signatures on all 3.

Jan 17 2012 11:38:20:337AM 1120117010 Jerry Hughes Shot 10

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.
Yunxing readjusts fiber plate to recover shot 08 alignment.

Agilent Scope:
CH1: FERA 34
CH2: FERA 00 (YAG2)
CH3: FERA 10
CH4: FERA 48

Saved file as shot010.csv

Good timing signatures on the 3 test channels.

Jan 17 2012 11:44:45:607AM 1120117011 Jerry Hughes Shot 11

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.

Agilent Scope:
CH1: FERA 17
CH2: FERA 00 (YAG2)
CH3: FERA 26
CH4: FERA 23

Saved file as shot011.csv

Good timing signatures on all 3 test channels.

Jan 17 2012 11:56:44:043AM 1120117012 Jerry Hughes Shot 12

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.

Agilent Scope:
CH1: FERA 19
CH2: FERA 00 (YAG2)
CH3: FERA 27
CH4: FERA 37

Saved file as shot0xx.csv

Jan 17 2012 12:14:46:517PM 1120117012 Jerry Hughes Shot 12

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.

Agilent Scope:
CH1: FERA 19
CH2: FERA 00 (YAG2)
CH3: FERA 27
CH4: FERA 37

Saved file as shot012.csv

Good timing signatures on all 3 test channels.

Jan 17 2012 12:24:36:927PM 1120117013 Jerry Hughes Shot 13

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.

Agilent Scope:
CH1: FERA 07
CH2: FERA 00 (YAG2)
CH3: FERA 11
CH4: FERA 61

Saved file as shot013.csv

Clear timing signature for FERA 07, less clear for 11, 61, but they are there.

Jan 17 2012 12:41:37:120PM 1120117014 Jerry Hughes Shot 14

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.

Agilent Scope:
CH1: FERA 03
CH2: FERA 00 (YAG2)
CH3: FERA 53
CH4: FERA 57

Saved file as shot014.csv

Good timing signatures on each of the 3 test channels.

Jan 17 2012 01:00:17:290PM 1120117015 Jerry Hughes Shot 15

Plasma attempt.

Both YAG1, YAG2 to 55 pulses each.

Agilent Scope:
CH1: FERA 09
CH2: FERA 00 (YAG2)
CH3: FERA 35
CH4: FERA 44

Saved file as shot015.csv

Good timing signatures on FERA 35, 44. Peak is buried in the noise on FERA09

Jan 17 2012 01:15:55:123PM 1120117016 Jerry Hughes Shot 16

Plasma attempt.

Both YAG1, YAG2 to 75 pulses each.

Agilent Scope:
CH1: FERA 20
CH2: FERA 00 (YAG2)
CH3: FERA 24
CH4: FERA 28

Saved file as shot016.csv

Good timing signatures on all 3 test channels

Jan 17 2012 01:30:54:943PM 1120117017 Jerry Hughes Shot 17

Plasma attempt.

Both YAG1, YAG2 at 75 pulses each.

Agilent Scope:
CH1: FERA 16
CH2: FERA 00 (YAG2)
CH3: FERA 12
CH4: FERA 08

Saved file as shot017.csv

Decent timing signatures on FERA 16,08. Can't really make out the TS signal in 12.

Jan 17 2012 01:47:23:403PM 1120117018 Jerry Hughes Shot 18

Plasma attempt.

Both YAG1, YAG2 at 75 pulses each.

Fizzle.

Agilent Scope:
CH1: FERA 62
CH2: FERA 00 (YAG2)
CH3: FERA 12
CH4: FERA 58

Saved file as shot018.csv

Got good background noise level measurement on FERA 12,58,62

Jan 17 2012 02:08:40:137PM 1120117019 Jerry Hughes Shot 19

Plasma attempt. Retry of 18. Allowing divertor puff of Ne at 0.7s.

Result: Fizzle

Both YAG1, YAG2 at 60 pulses each.

Agilent Scope:
CH1: FERA 62
CH2: FERA 00 (YAG2)
CH3: FERA 12
CH4: FERA 58

Saved file as shot019.csv

Jan 17 2012 02:17:08:350PM 1120117020 Jerry Hughes Shot 20

Plasma attempt. Retry of 18. Allowing divertor puff of Ne at 0.7s.

Both YAG1, YAG2 at 60 pulses each.
Another fizzle.

Agilent Scope:
CH1: FERA 62
CH2: FERA 00 (YAG2)
CH3: FERA 12
CH4: FERA 58

Saved file as shot020.csv

Jan 17 2012 02:30:27:020PM 1120117021 Jerry Hughes Shot 21

Plasma attempt. Retry of 18. Divertor puff is diabled now.

Both YAG1, YAG2 at 60 pulses each.

Agilent Scope:
CH1: FERA 62
CH2: FERA 00 (YAG2)
CH3: FERA 12
CH4: FERA 58

Saved file as shot021.csv

Timing signal on FERA62.

Jan 17 2012 02:49:05:830PM 1120117022 Jerry Hughes Shot 22

Plasma attempt.

Both YAG1, YAG2 at 75 pulses each.
Before this shot I attempted to shroud the alignment box more tightly with
cloth. I also placed foil around the unused alignment fibers, to try to
prevent IR from getting into the box.

Result: Alignment channels are no longer saturated.

Agilent Scope:
CH1: FERA 36
CH2: FERA 00 (YAG2)
CH3: FERA 45
CH4: FERA 50

Saved file as shot022.csv

Timing signatures are quite weak.

Jan 17 2012 03:05:53:770PM 1120117023 Jerry Hughes Shot 23

Plasma attempt. PO will add a more aggressive density ramp.

Both YAG1, YAG2 at 75 pulses each.

Agilent Scope:
CH1: FERA 46 (One of the alignment channels
CH2: FERA 00 (YAG2)
CH3: FERA 41
CH4: FERA 12

Saved file as shot023.csv

Got a clear timing signal on FERA12 that time.
FERA41 is the one that is diconnected somehow, and so it shows 0 signal.
FERA 46, the alignment channel, is basically meaningless.

Jan 17 2012 03:30:17:910PM 1120117024 Jerry Hughes Shot 24

Plasma attempt.

Both YAG1, YAG2 at 75 pulses each.

Result: Fizzle

Agilent Scope:
CH1: FERA 45
CH2: FERA 00 (YAG2)
CH3: FERA 60
CH4: FERA 40

Saved file as shot024.csv

Digitized the stray light signal on FERA40.

Jan 17 2012 03:52:28:990PM 1120117025 Jerry Hughes Shot 25

Plasma attempt.

Both YAG1, YAG2 at 75 pulses each.

Result: Fizzle

Agilent Scope:
CH1: FERA 45
CH2: FERA 00 (YAG2)
CH3: FERA 60
CH4: FERA 40

Saved file as shot025.csv

Digitized the stray light signal on FERA40.

Jan 17 2012 03:56:16:827PM 1120117026 Jerry Hughes Shot 26
Shot 26

Moving on to density ramps to induce ECE cutoffs.
Returned all cables to normal configuration, so that we digitize laser energy.

Request 4.0T, 0.8MA flattop, with density ramp.

Unfortunately, YAGs were shut off by WD timeout while I was in the cell. I
didn't notice until we were in INIT, and there wasn't time to re-warm them.

Result: Fizzle

Agilent Scope:
CH1: null
CH2: FERA gate complement
CH3: FERA 46 (connected to PULSED OUT 13)
CH4: null

No triggers.

Jan 17 2012 04:21:25:060PM 1120117027 Jerry Hughes Shot 27

4.0T, 0.8MA.Good density ramp.

Getting cutoffs in GPC2. Center is cutoff by 1.3s.
There are some axial/HFS cutoffs in GPC1 as well.

Agilent Scope:
CH1: null
CH2: FERA gate complement
CH3: FERA 46 (connected to PULSED OUT 13)
CH4: null

I saw some signal on the channel digitizing the unused polychromator output.

Jan 17 2012 04:25:24:400PM 1120117028 Jerry Hughes Shot 28

Plasma attempt. Fizzle is the result.

Agilent Scope:
CH1: null
CH2: FERA gate complement
CH3: FERA 46 (connected to PULSED OUT 13)
CH4: null

Triggering on CH3. Seeing stray light.
Saving trace as shot028.csv

Jan 17 2012 04:46:13:930PM 1120117029 Jerry Hughes Shot 29

Plasma attempt. Fizzle

Agilent Scope:
CH1: null
CH2: FERA gate complement
CH3: FERA 46 (connected to PULSED OUT 13)
CH4: null

Triggering on CH3. Seeing stray light.

Physics Operator Comments

Jan 17 2012 09:59:24:980AM 1120117001 Syunichi Shiraiwa Gas Test

Load 1120117001 from ~/pcs
Enable H-Bot

Jan 17 2012 09:59:01:433AM 1120117002 Syunichi Shiraiwa Retry H-bot.

Disabled by itself again.
Next test B_div (pg6)

Jan 17 2012 09:58:25:173AM 1120117003 Syunichi Shiraiwa B-div is okey. PG3 does not open yet.

Jan 17 2012 09:56:45:733AM 1120117004 Syunichi Shiraiwa Load 1120117003 from ~/pcs/

Set 100V 40ms to pg3 in seg 1

Disable B-div
Enable H-div

Jan 17 2012 10:00:57:077AM 1120117005 Syunichi Shiraiwa First attempt to make a plasma

Load 1120117004 from ~/pcs/
Disable H-div
Enalbe B-side lower (1ps Ar)

Full length plasma

Next :
Reduce Ne04 deriv feedback to suppress ne04 oscillation
(set seg#2 ne0 deriv to 2 (from 3) between 0.01s and 0.6s)

Jan 17 2012 10:15:54:867AM 1120117006 Syunichi Shiraiwa Full length plasma

Next : Set density target to 0.7e20

Jan 17 2012 10:46:08:733AM 1120117007 Syunichi Shiraiwa Full length plasma

Next : repeat

Jan 17 2012 11:01:25:257AM 1120117008 Syunichi Shiraiwa Full length plasma

Next : repeat

Jan 17 2012 11:20:52:840AM 1120117009 Syunichi Shiraiwa Full length plasma

Next :
Adjust ne04
Move RXL down by 5mm

Jan 17 2012 11:39:03:003AM 1120117010 Syunichi Shiraiwa Full length plasma

Next :
Try to move strike point during the later half of discharge
Move RXL in by 10mm
Move ZXL up by 20mm

Jan 17 2012 11:52:03:413AM 1120117011 Syunichi Shiraiwa Full length plasma

Next :
Try to move strike point during the later half of discharge
Move RXL in by 5mm
Move ZXL up by 10mm

Jan 17 2012 11:52:08:630AM 1120117011 Syunichi Shiraiwa Full length plasma

Next :
Try to move strike point during the later half of discharge
Move RXL in by 5mm
Move ZXL up by 10mm

Jan 17 2012 12:17:06:233PM 1120117012 Syunichi Shiraiwa Full length plasma.
Density moved around.

Next :
Adjust Ne04 to reduce the drop before 1s.
Ninja will start at 1.0s

Jan 17 2012 12:55:37:627PM 1120117014 Syunichi Shiraiwa Full length plasma.
Density moved around.

Next :
try to reproduce the shape of 1101221027

Jan 17 2012 01:03:52:363PM 1120117015 Syunichi Shiraiwa Disruption during the ramp down
Strike point is good.
Density stays almost constant (although I did not change anything....)

Next :
increase ne04 to 1e20
increase ZXL during the ramp down

Jan 17 2012 01:22:16:240PM 1120117016 Syunichi Shiraiwa Density is 0.8e20 although the request was 1e20

Next :
adjust the density demand to 1.1e20

Jan 17 2012 01:54:04:717PM 1120117018 Syunichi Shiraiwa Fizzle

Next:
increase pre-puff by 2ms
Enable B-div
Set B-div(pg6) to 50V from 0.7 to 0.8s

Jan 17 2012 02:07:51:063PM 1120117019 Syunichi Shiraiwa Fizzle

Next:
increase pre-puff by 2ms

Jan 17 2012 02:21:16:080PM 1120117021 Syunichi Shiraiwa Fizzle

Next:
Disable B-div
set pre-puff to 18ms

Jan 17 2012 02:31:14:350PM 1120117021 Syunichi Shiraiwa Full length plasma

Next :
adjust density control

Jan 17 2012 02:57:17:797PM 1120117022 Syunichi Shiraiwa Full length plasma

Next :
density ramp-up to 2e20
move RXL outward by 2 cm to short the leg.

Jan 17 2012 03:05:44:177PM 1120117023 Syunichi Shiraiwa Disrupted at 1.4s
Ne04 data is strange.

Jan 17 2012 03:31:08:450PM 1120117024 Syunichi Shiraiwa (Post disruption) Fizzle

Next: Retry

Jan 17 2012 03:52:00:683PM 1120117025 Syunichi Shiraiwa Fizzle

Next:
Reduce prefill to 16ms
Reduce Ip to 8e5 A
Reduce Bt to 4T during seg. #2

Jan 17 2012 04:10:43:333PM 1120117026 Syunichi Shiraiwa Fizzle

Next: Set pre-puff to 18ms

Jan 17 2012 04:19:37:110PM 1120117027 Syunichi Shiraiwa Disrupted at 1.45s
Ne04 increased up to 1.7e20

Next:
reduce pre-puff to 16ms
reduce Bt to 3.9T
stop ne04 control at 1.3s

Jan 17 2012 04:25:53:560PM 1120117028 Syunichi Shiraiwa Fizzle

Next :
Set the pre-puff to 18ms

Jan 17 2012 04:57:34:997PM 1120117030 Syunichi Shiraiwa Plasma disrupted at 1.45s
Bt = 3.9T
Ne04 increased up-to 1.5e20

Next :
Locked mode : load seg#3 from 1120106024 to seg#2

Engineering Operator Comments

Shot Time Type Status Comment

1 08:54:14:510AM Test Bad Gas Test

2 09:05:33:273AM Test Bad Gas Test

3 09:17:54:687AM Test Bad Gas Test

4 09:28:13:570AM Test Ok Gas Test

5 09:44:21:797AM Plasma Ok

6 10:06:48:013AM Plasma Ok

7 10:28:40:810AM Plasma Ok

8 10:45:19:833AM Plasma Ok

9 11:02:25:343AM Plasma Ok

10 11:23:05:707AM Plasma Ok

11 11:41:17:347AM Plasma Ok

12 12:00:17:673PM Plasma Ok

13 12:17:53:300PM Plasma Ok

14 12:37:24:057PM Plasma Ok

15 12:54:57:933PM Plasma Ok

16 01:11:57:223PM Plasma Ok

17 01:25:57:590PM Plasma Ok

18 01:40:12:597PM Plasma Ok

19 01:56:12:900PM Plasma Ok

20 02:09:19:440PM Plasma Ok

21 02:23:15:297PM Plasma Ok

22 02:42:21:743PM Plasma Ok

23 02:58:54:463PM Plasma Ok

24 03:20:58:513PM Plasma Ok

25 03:33:58:393PM Plasma Ok

26 03:52:57:840PM Plasma Ok

27 04:07:14:683PM Plasma Ok

28 04:20:22:220PM Plasma Ok

29 04:33:25:767PM Plasma Ok

30 04:46:19:770PM Plasma Ok

31 05:04:04:230PM Plasma Ok

System Availability

Jan 17 2012 08:53:52:110AM

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 golfit
BES yes BES system is online Nov 22 2011 02:21PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes 2pi and midplane AXUV diodes awaiting first plasma. Divertor diodes installed, but amplifiers need to be installed. Core and divertor bolometry not yet hooked up Nov 17 2011 02:45PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no Bottle Removed. System has been tested and will be ready once bottle is installed Jan 09 2012 06:32AM (dekow) Jim Irby Boronization dekow,irby
CECE no Jan 06 2012 03:48PM Anne White Correlation ECE whitea
CNPA yes Multiple channel CNPA available, no safety risk for in-vessel access Apr 14 2011 12:01PM (parker) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Operational. He level meter not working on 500L dewar. Frank will take manual readings. Jan 11 2012 11:46AM (labombard) Brian LaBombard Upper Divertor Cryopump dekow,irby,labombard
CXRS yes core-CXRS system is online Nov 22 2011 02:21PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
CXRS edge yes Michael CHurchill has primary responsibility at the moment Apr 19 2011 11:44AM (blip) Bruce Lipshultz Measurement of CXR light in the pedestal region at both the high- and low-field sides blip,rmchurch
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 no system is is installed and aligned, but not functional (appears to be a broken cable) Dec 05 2011 02:41PM (marmar) Earl Marmar Visible Bremsstrahlung Imaging marmar
Disruption Mitigation no gas jet valve disabled on 2011/04/13 Apr 13 2011 02:04PM (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
DMBolo AXUV diodes no Diodes are taking data, but system is not fully operational yet. Post-acquisition data processing code is not yet functional. Dec 02 2011 03:27PM (golynyk) Geoff Olynyk Set of six AXUV diodes in a toroidal array of midplane wall boxes. golynyk,granetz,mlreinke,whyte
DNB yes Dec 01 2011 11:46AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,mochung
ECDC yes Operational as of 11/19/11 Nov 22 2011 03:01PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE no Power off to RF and IF sections- Power on to DA Apr 11 2011 02:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels bespam,liao,phillips,rowan,whitea
FTCI no Jan 06 2012 04:36PM Jim Irby Fast two-color interferometer irby
G-Side Ratiomatic yes Dec 02 2011 12:24PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no Power supply unplugged and redtagged, HV cables removed Apr 14 2011 08:03AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Using new preamps. Nov 30 2011 07:51AM (hubbard) Amanda Hubbard ECE Polychromater hubbard
GPC2 yes Dewar cold. Nov 21 2011 09:55AM (hubbard) Amanda Hubbard ECE Polychromater hubbard
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 system is functional and taking data Dec 05 2011 02:42PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Jan 09 2012 06:32AM (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 Installed and aligned. Will be available for Ti/Vr profiles after focusing tests and locked modes are taken. Dec 06 2011 08:21AM (ypodpaly) John Rice High Resolution X-Ray cgao,ldelgado,rice,ypodpaly
HXR yes 32 Channels operational,, no safety risk for in-vessel access Apr 14 2011 12:05PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt
ICRF D-Antenna no secured Apr 14 2011 08:55AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna no secured Apr 14 2011 08:55AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna no secured Apr 14 2011 08:56AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Impurity Spectroscopy yes Being upgraded with better optics and new spectrographs. Dan Miller has primary responsibility. Apr 19 2011 11:46AM (blip) Bruce Lipshultz Measurement of recycling light and impurity source rates at multiple surfaces around the tokamak blip,miller
Laser Blow-Off yes Operational and tested Jan 06 2012 03:50PM (g) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid no LH HV Breaker Opened and Tagged, TPS Upgrade Underway Nov 10 2011 03:51PM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg
Lower Hybrid Reflectometer no off Apr 15 2011 08:24AM (dominguez) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek
LoWEUS yes LoWEUS working with the shot cycle. Viewing Mo line-emission normally covered by McPherson. Raw data only in tree. Dec 01 2011 02:54PM (mlreinke) Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometer markchil,mlreinke
LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no Midplane Lyman awaiting first plasma. B-PORT and LEDGE arrays installed but do not yet have amplifiers hooked up. Nov 17 2011 02:42PM (mlreinke) Matt Reinke Lyman alpha cameras faustian,labombard,mlreinke
Magnetics yes Dec 01 2011 11:51AM (g) Robert Granetz Bp coils and flux loops for equilibrium control granetz,wolfe
McPherson no new turbo pump, installed, McP pumping down. Almost ready to open to machine. Dec 06 2011 12:16PM (mlreinke) Jim Terry VUV Spectrometer markchil,mlreinke,terry
Michelson yes Front end at 4.5e-8 T. Reduced speed for initial operation. Nov 30 2011 07:51AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Dec 02 2011 12:27PM (toland) Brian LaBombard Baratron pressure gauges labombard,toland
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 1/3/2011: push-pull mechanism broken. MSE inoperative Jan 03 2012 11:47AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes High voltage is on. We're ready for plasma. Nov 21 2011 12:58PM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes All detectors Powered On --- Waiting for neutrons for calibration Nov 22 2011 01:05PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby
NINJA yes C-bottom and new F-bottom system ready. Dec 02 2011 12:28PM (toland) Brian LaBombard NINJA gas puff labombard,terry,toland
PCI yes Operational. Nov 30 2011 12:45PM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab
Penning Gauges yes Operational. High voltage comes on during INIT and off at RECOOL. Dec 09 2011 09:48AM (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 yes 3 chords operational but with high noise level Jan 06 2012 04:22PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Jan 09 2012 06:33AM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby
Power - PEI yes Jan 09 2012 06:33AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Jan 09 2012 06:33AM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Jan 09 2012 06:33AM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Operational, except for probe #1 (open circuit) and probe #16 (not installed). Dec 09 2011 09:50AM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational, except for bottom-D probe (open circuit). Dec 09 2011 09:52AM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes F-divertor ok. J-divertor ok, except for JDIV_06 which is shorted out. Dec 09 2011 09:54AM (labombard) Brian LaBombard Outer Lower Divertor Probe Array (F and J) labombard
Probe Array - UDIV yes Operational except for probes #4, 5 and 13 (open) Dec 09 2011 09:56AM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes As of 1120105xxx, all channels are connected Jan 05 2012 09:14AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Ion Sensitive Probe head installed. Testing in piggy-back mode. Dec 20 2011 12:33PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Operational. Dec 09 2011 09:57AM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes A-port WASP is operational. K-port WASP is dead (all probes melted together). Dec 09 2011 09:58AM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Shoelace Antenna yes Fixed frequency operation available (100kHz) at moderate power (< 0.5kW). Otherwise in receiver mode. Jan 11 2012 11:50AM (labombard) Brian LaBombard High-k active MHD antenna, for QCM, WCM studies golfit,labombard
SOL reflectometer yes c-port waveguides operational, h-port waveguides are not. Nov 29 2011 12:04PM (cornwall) Cornwall Lau SOL reflectometer cornwall,wukitch,ylin
Sparker yes New Type II sparker replaced Type I on 11/17/2011 Nov 23 2011 08:53AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
Surface Science Station no SSS is up to air, no safety issues Apr 14 2011 12:06PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov
TCI yes TCI Operational. Density feedback operational. Nov 10 2011 11:47AM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core no All lasers are shut down and cannot be fired into cell. Apr 11 2011 01:20PM (jwhughes) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma
TS - Edge no All lasers are shut down and cannot be fired into cell. Apr 11 2011 01:20PM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jrwalk,jwhughes,yma
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XEUS yes XEUS working with the shot cycle. Viewing low-Z emission. Dec 01 2011 02:55PM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer markchil,mlreinke
XTOMO yes ARRAY1->4 waiting first plasma, new core ARRAY5 needs debugging and the calibration data checked Nov 17 2011 02:44PM (mlreinke) Robert Granetz X-Ray Tomography faustian,granetz,mlreinke

Jan 17 2012 10:58:17:807AM

signal levels are pretty the same as of shot 7, I doubt we might have hit the optimum alignment pos, or close

Fiber adj after this shot:
Bot plate 60 REV
Top plate 60 REV

Session Leader Comments
Jan 17 2012 09:22:42:960AM	1120117002	Jerry Hughes	Shot 2. Gas test. Put YAGs in this time, 10 pulses each. FERA triggers. There's the stray light on FERA 40. Alignment channels are showing lots of signal. Good laser energy + gate trace on the scope. Save as shot002.csv
Jan 17 2012 09:30:12:543AM	1120117003	Jerry Hughes	Shot 3 Another gas test. Another 10 pulses from each YAG save scope trace as shot003.csv CH1: FERA gate complement CH2: GLUE out (YAG2) CH3: null CH4: null
Jan 17 2012 09:40:46:510AM	1120117004	Jerry Hughes	Shot 4 Another gas test. Set YAG2 to 49 pulses, YAG1 to 50. This way the scope will show us the YAG1 energy pulse. saved results as shot004.csv CH1: FERA gate complement CH2: FERA 00 (YAG1) CH3: null CH4: null
Jan 17 2012 10:05:36:943AM	1120117005	Jerry Hughes	Shot 5 Plasma attempt. Both YAG1, YAG2 to 50 pulses each. Agilent Scope: CH1: FERA 02 CH2: FERA 00 (YAG2) CH3: FERA 44 CH4: FERA 45 Not much signal evident on these channels Saved file as shot005.csv A number of FERA channels see signal. Looks like the first TS data with the new lasers has been obtained
Jan 17 2012 10:24:25:240AM	1120117006	Jerry Hughes	Shot 6 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Yunxing makes an adjustment to the fiber plate. Agilent Scope: CH1: FERA 30 CH2: FERA 00 (YAG2) CH3: FERA 31 CH4: FERA 32 Saved file as shot006.csv Clear TS pulses digitized on all 3 of the tested channels
Jan 17 2012 10:34:57:037AM	1120117007	Jerry Hughes	Shot 7 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Yunxing makes another adjustment to the fiber plate. Agilent Scope: CH1: FERA 49 CH2: FERA 00 (YAG2) CH3: FERA 56 CH4: FERA 14 Saved file as shot007.csv Fairly clear timing signatures on all 3 of these test channels.
Jan 17 2012 10:49:57:653AM	1120117008	Jerry Hughes	Shot 8 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Yunxing makes another adjustment to the fiber plate. Also he switched FERA inputs 40 and 41 Agilent Scope: CH1: FERA 22 CH2: FERA 00 (YAG2) CH3: FERA 06 CH4: FERA 52 Saved file as shot008.csv Clear timing signatures on these 3 test channels.
Jan 17 2012 11:09:05:167AM	1120117009	Jerry Hughes	Shot 9 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Yunxing makes another adjustment to the fiber plate. Agilent Scope: CH1: FERA 29 CH2: FERA 00 (YAG2) CH3: FERA 02 CH4: FERA 39 Saved file as shot009.csv Got clear timing signatures on all 3.
Jan 17 2012 11:38:20:337AM	1120117010	Jerry Hughes	Shot 10 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Yunxing readjusts fiber plate to recover shot 08 alignment. Agilent Scope: CH1: FERA 34 CH2: FERA 00 (YAG2) CH3: FERA 10 CH4: FERA 48 Saved file as shot010.csv Good timing signatures on the 3 test channels.
Jan 17 2012 11:44:45:607AM	1120117011	Jerry Hughes	Shot 11 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Agilent Scope: CH1: FERA 17 CH2: FERA 00 (YAG2) CH3: FERA 26 CH4: FERA 23 Saved file as shot011.csv Good timing signatures on all 3 test channels.
Jan 17 2012 11:56:44:043AM	1120117012	Jerry Hughes	Shot 12 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Agilent Scope: CH1: FERA 19 CH2: FERA 00 (YAG2) CH3: FERA 27 CH4: FERA 37 Saved file as shot0xx.csv
Jan 17 2012 12:14:46:517PM	1120117012	Jerry Hughes	Shot 12 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Agilent Scope: CH1: FERA 19 CH2: FERA 00 (YAG2) CH3: FERA 27 CH4: FERA 37 Saved file as shot012.csv Good timing signatures on all 3 test channels.
Jan 17 2012 12:24:36:927PM	1120117013	Jerry Hughes	Shot 13 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Agilent Scope: CH1: FERA 07 CH2: FERA 00 (YAG2) CH3: FERA 11 CH4: FERA 61 Saved file as shot013.csv Clear timing signature for FERA 07, less clear for 11, 61, but they are there.
Jan 17 2012 12:41:37:120PM	1120117014	Jerry Hughes	Shot 14 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Agilent Scope: CH1: FERA 03 CH2: FERA 00 (YAG2) CH3: FERA 53 CH4: FERA 57 Saved file as shot014.csv Good timing signatures on each of the 3 test channels.
Jan 17 2012 01:00:17:290PM	1120117015	Jerry Hughes	Shot 15 Plasma attempt. Both YAG1, YAG2 to 55 pulses each. Agilent Scope: CH1: FERA 09 CH2: FERA 00 (YAG2) CH3: FERA 35 CH4: FERA 44 Saved file as shot015.csv Good timing signatures on FERA 35, 44. Peak is buried in the noise on FERA09
Jan 17 2012 01:15:55:123PM	1120117016	Jerry Hughes	Shot 16 Plasma attempt. Both YAG1, YAG2 to 75 pulses each. Agilent Scope: CH1: FERA 20 CH2: FERA 00 (YAG2) CH3: FERA 24 CH4: FERA 28 Saved file as shot016.csv Good timing signatures on all 3 test channels
Jan 17 2012 01:30:54:943PM	1120117017	Jerry Hughes	Shot 17 Plasma attempt. Both YAG1, YAG2 at 75 pulses each. Agilent Scope: CH1: FERA 16 CH2: FERA 00 (YAG2) CH3: FERA 12 CH4: FERA 08 Saved file as shot017.csv Decent timing signatures on FERA 16,08. Can't really make out the TS signal in 12.
Jan 17 2012 01:47:23:403PM	1120117018	Jerry Hughes	Shot 18 Plasma attempt. Both YAG1, YAG2 at 75 pulses each. Fizzle. Agilent Scope: CH1: FERA 62 CH2: FERA 00 (YAG2) CH3: FERA 12 CH4: FERA 58 Saved file as shot018.csv Got good background noise level measurement on FERA 12,58,62
Jan 17 2012 02:08:40:137PM	1120117019	Jerry Hughes	Shot 19 Plasma attempt. Retry of 18. Allowing divertor puff of Ne at 0.7s. Result: Fizzle Both YAG1, YAG2 at 60 pulses each. Agilent Scope: CH1: FERA 62 CH2: FERA 00 (YAG2) CH3: FERA 12 CH4: FERA 58 Saved file as shot019.csv
Jan 17 2012 02:17:08:350PM	1120117020	Jerry Hughes	Shot 20 Plasma attempt. Retry of 18. Allowing divertor puff of Ne at 0.7s. Both YAG1, YAG2 at 60 pulses each. Another fizzle. Agilent Scope: CH1: FERA 62 CH2: FERA 00 (YAG2) CH3: FERA 12 CH4: FERA 58 Saved file as shot020.csv
Jan 17 2012 02:30:27:020PM	1120117021	Jerry Hughes	Shot 21 Plasma attempt. Retry of 18. Divertor puff is diabled now. Both YAG1, YAG2 at 60 pulses each. Agilent Scope: CH1: FERA 62 CH2: FERA 00 (YAG2) CH3: FERA 12 CH4: FERA 58 Saved file as shot021.csv Timing signal on FERA62.
Jan 17 2012 02:49:05:830PM	1120117022	Jerry Hughes	Shot 22 Plasma attempt. Both YAG1, YAG2 at 75 pulses each. Before this shot I attempted to shroud the alignment box more tightly with cloth. I also placed foil around the unused alignment fibers, to try to prevent IR from getting into the box. Result: Alignment channels are no longer saturated. Agilent Scope: CH1: FERA 36 CH2: FERA 00 (YAG2) CH3: FERA 45 CH4: FERA 50 Saved file as shot022.csv Timing signatures are quite weak.
Jan 17 2012 03:05:53:770PM	1120117023	Jerry Hughes	Shot 23 Plasma attempt. PO will add a more aggressive density ramp. Both YAG1, YAG2 at 75 pulses each. Agilent Scope: CH1: FERA 46 (One of the alignment channels CH2: FERA 00 (YAG2) CH3: FERA 41 CH4: FERA 12 Saved file as shot023.csv Got a clear timing signal on FERA12 that time. FERA41 is the one that is diconnected somehow, and so it shows 0 signal. FERA 46, the alignment channel, is basically meaningless.
Jan 17 2012 03:30:17:910PM	1120117024	Jerry Hughes	Shot 24 Plasma attempt. Both YAG1, YAG2 at 75 pulses each. Result: Fizzle Agilent Scope: CH1: FERA 45 CH2: FERA 00 (YAG2) CH3: FERA 60 CH4: FERA 40 Saved file as shot024.csv Digitized the stray light signal on FERA40.
Jan 17 2012 03:52:28:990PM	1120117025	Jerry Hughes	Shot 25 Plasma attempt. Both YAG1, YAG2 at 75 pulses each. Result: Fizzle Agilent Scope: CH1: FERA 45 CH2: FERA 00 (YAG2) CH3: FERA 60 CH4: FERA 40 Saved file as shot025.csv Digitized the stray light signal on FERA40.
Jan 17 2012 03:56:16:827PM	1120117026	Jerry Hughes	Shot 26 Shot 26 Moving on to density ramps to induce ECE cutoffs. Returned all cables to normal configuration, so that we digitize laser energy. Request 4.0T, 0.8MA flattop, with density ramp. Unfortunately, YAGs were shut off by WD timeout while I was in the cell. I didn't notice until we were in INIT, and there wasn't time to re-warm them. Result: Fizzle Agilent Scope: CH1: null CH2: FERA gate complement CH3: FERA 46 (connected to PULSED OUT 13) CH4: null No triggers.
Jan 17 2012 04:21:25:060PM	1120117027	Jerry Hughes	Shot 27 4.0T, 0.8MA.Good density ramp. Getting cutoffs in GPC2. Center is cutoff by 1.3s. There are some axial/HFS cutoffs in GPC1 as well. Agilent Scope: CH1: null CH2: FERA gate complement CH3: FERA 46 (connected to PULSED OUT 13) CH4: null I saw some signal on the channel digitizing the unused polychromator output.
Jan 17 2012 04:25:24:400PM	1120117028	Jerry Hughes	Shot 28 Plasma attempt. Fizzle is the result. Agilent Scope: CH1: null CH2: FERA gate complement CH3: FERA 46 (connected to PULSED OUT 13) CH4: null Triggering on CH3. Seeing stray light. Saving trace as shot028.csv
Jan 17 2012 04:46:13:930PM	1120117029	Jerry Hughes	Shot 29 Plasma attempt. Fizzle Agilent Scope: CH1: null CH2: FERA gate complement CH3: FERA 46 (connected to PULSED OUT 13) CH4: null Triggering on CH3. Seeing stray light.

Physics Operator Comments
Jan 17 2012 09:59:24:980AM	1120117001	Syunichi Shiraiwa	Gas Test Load 1120117001 from ~/pcs Enable H-Bot
Jan 17 2012 09:59:01:433AM	1120117002	Syunichi Shiraiwa	Retry H-bot. Disabled by itself again. Next test B_div (pg6)
Jan 17 2012 09:58:25:173AM	1120117003	Syunichi Shiraiwa	B-div is okey. PG3 does not open yet.
Jan 17 2012 09:56:45:733AM	1120117004	Syunichi Shiraiwa	Load 1120117003 from ~/pcs/ Set 100V 40ms to pg3 in seg 1 Disable B-div Enable H-div
Jan 17 2012 10:00:57:077AM	1120117005	Syunichi Shiraiwa	First attempt to make a plasma Load 1120117004 from ~/pcs/ Disable H-div Enalbe B-side lower (1ps Ar) Full length plasma Next : Reduce Ne04 deriv feedback to suppress ne04 oscillation (set seg#2 ne0 deriv to 2 (from 3) between 0.01s and 0.6s)
Jan 17 2012 10:15:54:867AM	1120117006	Syunichi Shiraiwa	Full length plasma Next : Set density target to 0.7e20
Jan 17 2012 10:46:08:733AM	1120117007	Syunichi Shiraiwa	Full length plasma Next : repeat
Jan 17 2012 11:01:25:257AM	1120117008	Syunichi Shiraiwa	Full length plasma Next : repeat
Jan 17 2012 11:20:52:840AM	1120117009	Syunichi Shiraiwa	Full length plasma Next : Adjust ne04 Move RXL down by 5mm
Jan 17 2012 11:39:03:003AM	1120117010	Syunichi Shiraiwa	Full length plasma Next : Try to move strike point during the later half of discharge Move RXL in by 10mm Move ZXL up by 20mm
Jan 17 2012 11:52:03:413AM	1120117011	Syunichi Shiraiwa	Full length plasma Next : Try to move strike point during the later half of discharge Move RXL in by 5mm Move ZXL up by 10mm
Jan 17 2012 11:52:08:630AM	1120117011	Syunichi Shiraiwa	Full length plasma Next : Try to move strike point during the later half of discharge Move RXL in by 5mm Move ZXL up by 10mm
Jan 17 2012 12:17:06:233PM	1120117012	Syunichi Shiraiwa	Full length plasma. Density moved around. Next : Adjust Ne04 to reduce the drop before 1s. Ninja will start at 1.0s
Jan 17 2012 12:55:37:627PM	1120117014	Syunichi Shiraiwa	Full length plasma. Density moved around. Next : try to reproduce the shape of 1101221027
Jan 17 2012 01:03:52:363PM	1120117015	Syunichi Shiraiwa	Disruption during the ramp down Strike point is good. Density stays almost constant (although I did not change anything....) Next : increase ne04 to 1e20 increase ZXL during the ramp down
Jan 17 2012 01:22:16:240PM	1120117016	Syunichi Shiraiwa	Density is 0.8e20 although the request was 1e20 Next : adjust the density demand to 1.1e20
Jan 17 2012 01:54:04:717PM	1120117018	Syunichi Shiraiwa	Fizzle Next: increase pre-puff by 2ms Enable B-div Set B-div(pg6) to 50V from 0.7 to 0.8s
Jan 17 2012 02:07:51:063PM	1120117019	Syunichi Shiraiwa	Fizzle Next: increase pre-puff by 2ms
Jan 17 2012 02:21:16:080PM	1120117021	Syunichi Shiraiwa	Fizzle Next: Disable B-div set pre-puff to 18ms
Jan 17 2012 02:31:14:350PM	1120117021	Syunichi Shiraiwa	Full length plasma Next : adjust density control
Jan 17 2012 02:57:17:797PM	1120117022	Syunichi Shiraiwa	Full length plasma Next : density ramp-up to 2e20 move RXL outward by 2 cm to short the leg.
Jan 17 2012 03:05:44:177PM	1120117023	Syunichi Shiraiwa	Disrupted at 1.4s Ne04 data is strange.
Jan 17 2012 03:31:08:450PM	1120117024	Syunichi Shiraiwa	(Post disruption) Fizzle Next: Retry
Jan 17 2012 03:52:00:683PM	1120117025	Syunichi Shiraiwa	Fizzle Next: Reduce prefill to 16ms Reduce Ip to 8e5 A Reduce Bt to 4T during seg. #2
Jan 17 2012 04:10:43:333PM	1120117026	Syunichi Shiraiwa	Fizzle Next: Set pre-puff to 18ms
Jan 17 2012 04:19:37:110PM	1120117027	Syunichi Shiraiwa	Disrupted at 1.45s Ne04 increased up to 1.7e20 Next: reduce pre-puff to 16ms reduce Bt to 3.9T stop ne04 control at 1.3s
Jan 17 2012 04:25:53:560PM	1120117028	Syunichi Shiraiwa	Fizzle Next : Set the pre-puff to 18ms
Jan 17 2012 04:57:34:997PM	1120117030	Syunichi Shiraiwa	Plasma disrupted at 1.45s Bt = 3.9T Ne04 increased up-to 1.5e20 Next : Locked mode : load seg#3 from 1120106024 to seg#2

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:54:14:510AM	Test	Bad	Gas Test
2	09:05:33:273AM	Test	Bad	Gas Test
3	09:17:54:687AM	Test	Bad	Gas Test
4	09:28:13:570AM	Test	Ok	Gas Test
5	09:44:21:797AM	Plasma	Ok
6	10:06:48:013AM	Plasma	Ok
7	10:28:40:810AM	Plasma	Ok
8	10:45:19:833AM	Plasma	Ok
9	11:02:25:343AM	Plasma	Ok
10	11:23:05:707AM	Plasma	Ok
11	11:41:17:347AM	Plasma	Ok
12	12:00:17:673PM	Plasma	Ok
13	12:17:53:300PM	Plasma	Ok
14	12:37:24:057PM	Plasma	Ok
15	12:54:57:933PM	Plasma	Ok
16	01:11:57:223PM	Plasma	Ok
17	01:25:57:590PM	Plasma	Ok
18	01:40:12:597PM	Plasma	Ok
19	01:56:12:900PM	Plasma	Ok
20	02:09:19:440PM	Plasma	Ok
21	02:23:15:297PM	Plasma	Ok
22	02:42:21:743PM	Plasma	Ok
23	02:58:54:463PM	Plasma	Ok
24	03:20:58:513PM	Plasma	Ok
25	03:33:58:393PM	Plasma	Ok
26	03:52:57:840PM	Plasma	Ok
27	04:07:14:683PM	Plasma	Ok
28	04:20:22:220PM	Plasma	Ok
29	04:33:25:767PM	Plasma	Ok
30	04:46:19:770PM	Plasma	Ok
31	05:04:04:230PM	Plasma	Ok