Alcator C-Mod Run 1100325 Information

Back to runs

Miniproposals
Miniproposal:599
Date Filed: 2/24/2010
Title:Up/Down Poloidal Impurity Density Variation
First Author:Matt Reinke
Session Leader:Matt Reinke (shots 1-32)

Operators
Session leader(s):Matt Reinke
Physics operator(s):Bill Rowan
Engineering operator(s):Sam Pierson,Bill Cochran,Andy Pfeiffer,Bill Byford

Engineering Operator Run Comment
SL: Reinke PO: Rowan MP 599, Up/Down Poloidal Impurity Density Variation

Session Leader Plans
Entered: Mar 25 2010 08:23:02:843AM
Author: Matt Reinke
Run Plan for MP 599 - Up/Down Poloidal Impurity Density Variation
SL: M. Reinke
PO: W. Rowan

The purpose of this run is to cover a wide parameter space in Ip, Bt and ne in Ohmic and ICRF L-mode plasmas to study parallel impurity transport. Density will be scanned during the shot in order to maximize the coverage. We will be looking for a sine term (up/down) in the impurity density on a flux surface.

CRITICAL DIAGNOSTIS:
HIREXSR, xtomo, bolometry, Thomson, GPC1,GPC2, FRCECE

DESIRED DIGANOSTICS:
XEUS, McPherson (Be-like Ar for absolute density), passive CXRS

IF POSSIBLE:
Lyman, scanning probes

ECDC in He overnight to prepare for low-density shots
Locked mode reference shot: 1100323023
cryopump required on first shot
ICRF (D+E if possible) near the end of the day
B-SIDE-LOWER filled with 2.0 psi Ar (use chopper to raise/lower)
Load reference shot 1100226015 (5.4 T, USN, pumped, 1 MA, nl04=0.7)
Ar puff from 0.4-1.2 chopped at 60% (adjust chopped fraction during the day)
Fill NINJA with 35 psi D2 for possible fueling assistance at high density

SHOT SEQUENCE:
==============
1) Test proper machine operation Bt=5.4, Ip=0.8, nl04=0.9 (steady)

LOCKED MODE CALIBRATION

2) Set nl04 to scan from 1.2-0.6 from 0.7-1.4 seconds. Adjust Ar chopping as necessary.
a) Set Bt=5.4 scan Ip shot-to-shot: 0.8, 0.6, 0.4 MA
b) Set Bt=4.0 scan Ip shot-to-shot: 0.8, 0.6

3) Set nl04 to scan from 1.0-0.6 from 0.7-1.4 seconds
a) Set Bt=4.0 Ip=0.4 MA
b) Set Bt=2.7 scan Ip shot-to-shot: 0.6, 0.4 MA

LOCKED MODE CALIBRATION

4) Set nl04 to scan from 0.6-0.2 from 0.7-1.4 seconds
a) Set Bt=5.4 scan Ip shot-to-shot: 0.8, 0.6, 0.4 MA
b) Set Bt=4.0 scan Ip shot-to-shot: 0.8, 0.6, 0.4 MA
c) Set Bt=2.7 scan Ip shot-to-shot: 0.6, 0.4 MA

5) Set nl04 to scan from 1.2-1.8 from 0.7-1.4 seconds. Add inner-wall NINJA as necessary for high density scans.
a) Set Bt=5.4, Ip=0.8 MA
b) Set Bt=4.0, Ip=0.8 MA

LOCKED MODE CALIBRATION

6) Set nl04 to scan from 0.8-1.6 from 0.7-1.4 seconds
a) Set Bt=5.4, Ip=1.1 MA

7) Set nl04 to scan from 1.6-2.4 from 0.7-1.4 seconds
a) Set Bt=5.4, Ip=1.1 MA

8) @Bt=5.4, scan ICRF power from 0.5-3.0 MW from 0.7-1.4 seconds
a) set Ip=0.4 MA, scan nl04 shot-to-shot: 0.4, 0.8
a) set Ip=0.8 MA, scan nl04 shot-to-shot: 0.5, 1.0

LOCKED MODE CALIBRATION

On the off chance there is extra time, fill in parameter space as desired.

***Additions***
Do a large outer gap scan plasma for spatial calibration of HIREXSR: 1100205010
If low current shots are preventing good He-like Ar signal, add 1 MW of steady ICRF (J-ANT @ 4.0 T, D+E @ 5.4 T, try 2nd harmonic at 2.7?)
At some point do a He puff to get branching ratio calibration at ~240 Angstroms to allow for absolute Ar calculation



Physics Operators Plans
Entered: Mar 24 2010 12:14:25:373PM
Author: Bill Rowan
Engineering Setup and Physop Run Plan for Thursday, 25 Mar 2010, Run 1100325

MP 599, Up/Down Poloidal Impurity Density Variation
SL: Reinke
PO: Rowan

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

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

Power systems as on: 1100226015

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 2.0 psi Ar Hybrid DISABLED (PG1) <-note pressure
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
fill NINJA with 35 psi D2 DISABLED <- note pressure

Enable gatevalves and shutters: ECE, VUV, HiREX Sr, Z-bolo, Bspec

Torvac gatevalve toggle (yes/no): no

Boronization(yes/no): no
Overnight ECDC (yes/no): yes, in helium
ICRF(yes/no): yes, near the end of the day
LH(yes/no): no
Cryopump (yes/no): yes, from the first shot

Vessel temperature: 35/35/35

------------------------------
ECDC Parameters (if requested)
------------------------------
gas and pressure: He at 5e-5 Torr
sweep: 44/45/103 cm
scan: 20/120 s


------------------------------
PO Run Plan
------------------------------

For the first shot
Segment 1 startup from 1100324
Segment 2 from segment 2 shot 1100226015 for L-mode plasmas
Segment 4 from segment 4 shot 1100317016 for locked mode plasmas

Setup the dpcs_piezo_chopper for the first shot
(dpcs_piezo_chopper, OUTPUTS="pulse_gas1", segment 2 PG1 60%)

At intervals through the day, run a locked mode calibration shot using reference shot 1100317016. Already loaded into segment 4. Reload power systems.
dpcs_piezo_chopper may or may not be used. SL will advise.

SL responsible for NINJA operation.

SL will advise on adjustment of PG1 chopper based on ability to analyze data

Session Leader Summaries
Entered: Mar 25 2010 06:43:56:110PM
Author: Matt Reinke
Very rough run day despite it being nearly all Ohmic.

No Power Shots: 017, 020
Fizzle/Dud: 008, 009, 014, 024, 028
Early Disruptions: 001, 003, 019, 026, 032
Useful Shots: 002, 004, 005, 006, 007, 010, 011, 012, 013, 015, 016, 018, 021, 022, 023, 025, 027, 029, 030, 031
TOTAL SHOT CYCLES: 32

Got a 20/32 = 62% utility of the shots today w/ 22% being fizzle/duds/nopower and 16% being early disruptions before a useful flattop.

From the experimental side of things we were able to collect a range of fields (5.4, 4.0 and 2.7) and currents (1.0, 0.8, 0.6) at the MID and LOW density points in the MP. We ran up against a MARFE in extending the parameter space to high density and low current. Qualitative analysis showed the presence of the up/down asymmetry on XTOMO and HIREXSR and it could be seen to change during the density scans and shot-to-shot when the Ip and Bt were modified. This should be an excellent initial set of data to use in testing theories of parallel impurity transport.

SCAN SHOTS:

| SHT | B_T | I_p | ch_nl04 | RR | M |
-----------------------------------------
| 010 | 5.4 | 1.0 | 9.7-6.1 | NO | N |
| 011 | 5.4 | 0.8 | 9.5-7.6 | NO | Y |
| 012 | 5.4 | 0.8 | 7.0-4.3 | NO | N |
| 013 | 5.4 | 0.6 | 7.6-5.8 | YS | Y |
| 015 | 5.4 | 0.6 | 7.3-4.1 | YS | Y |
| 016 | 4.1 | 0.8 | 7.2-4.4 | NO | N |
| 018 | 4.1 | 0.6 | 7.2-4.4 | YS | Y |
| 021 | 2.8 | 0.6 | 5.0-3.9 | YS | N |
| 023 | 5.4 | 0.8 | 5.4-2.7 | YS | N |
| 025 | 5.4 | 0.6 | 5.5-2.3 | NO | N |
| 027 | 4.1 | 0.8 | 6.0-3.2 | YS | N |
| 029 | 4.1 | 0.6 | 5.3-2.7 | YS | N |
| 031 | 2.8 | 0.6 | 5.4-3.9 | YS | N |



A bonus was collecting a number of rotation reversals (MP535a) as we scanned the density in the low-field, higher current shots.


Physics Operator Summaries
Entered: Mar 26 2010 01:38:51:500PM
Author: Bill Rowan
Physics Operator Summary for Thursday, March 25, 2010, Run 1100325

This run consisted of Ohmic discharges with cryo pumping. The discharge was an USN (1100226015) for which toroidal field, plasma current, and density were varied. The planned range of discharges was extremely wide. The range of achievable discharges was limited by marfes and impurity injections. I wonder whether some of the marfing might have derived from the large argon injections.

A very effective density scan employed the cryopump. A density scan was programmed from a relatively high value to a low one. Without the cryo pump this would likely not have worked. Unfortunately, in some cases, the high density demand led to a marfe and that prevented the remainder of the discharge from being useful. An alternative approach that might be tried is to start at a low density and scan up so that marfes would occur only after useful data was obtained over the available C-Mod range.

There was an attempt to use the dcps_piezo_chopper. This was quickly set to 100% duty factor and left for the remainder of the day.

There was one fizzle due to cryo otherwise the cryo ran well throughout the day.

The run ended about 15 minutes early due to a blown fuse in OH2U.

Score card
25 plasma 001,002,003,004,005,006,007,010,011,
012,013,015,016,018,019,021.022.023,
025,026,027,029,030,031,032.
04 fizzle 008,009,014,024
02 no power 017,020
01 dud 028
-----------
32 total


Session Leader Comments
Mar 25 2010 01:45:45:683PMMatt ReinkeEarly injection and possible locked mode disruption.

NEXT: repeat, hope that injection goes away
Mar 25 2010 09:04:48:610AM1100325001Matt ReinkeEarly disruption, two injections. First looks like Mo, second possibly low-z since the nl04 spikes.
Mar 25 2010 09:31:49:670AM1100325002Matt ReinkeGot the Mo injection again at startup, but this time it lived, only to be killed by a Ar puff that was too aggresive.

NEXT: reduce chopper to 30%
Mar 25 2010 09:32:53:560AM1100325003Matt ReinkeShot locks early (sadly too early for Ar) and disruptions after 0.5 seconds.

NEXT: Repeat put Ip=0.8, nl04=0.9
Mar 25 2010 09:50:22:707AM1100325004Matt ReinkeGot into rampdown but had a (Ar induced?) MARFE.
Ar brightness high on the upper channels of HIREXSR and XTOMO

NEXT: Reduce B_SIDE_LOWER to 1 psi Ar and reapeat
Mar 25 2010 10:01:34:960AM1100325005Matt ReinkeStill got a MARFE at 1.1 seconds, but pre-MARFE Ar is 1/2 of 004 so impurities might not be causing it. Push through it, see if it's outgassing that will go away?

NEXT: Locked mode calibration shot (1100323023)
Mar 25 2010 10:16:34:640AM1100325006Matt ReinkeGood locked mode shot for HIREXSR. Looks like only a 5 km/s drift from previous calib.

NEXT: Reload shot 005, start density scan shots: nl04 from 1.2-0.6 from t=0.7-1.4
Mar 25 2010 10:36:43:820AM1100325007Matt ReinkeNasty MARFE. Wolfe says "DUH" at this current/density demand.

NEXT: set Ar to steady 0.3-0.45 puff, Ip=1.0 MA and repeat
Mar 25 2010 11:24:20:430AM1100325010Matt ReinkeGreat density scan on this shot (1.0-0.6). Demand was 1.2, so it's running a bit low.
Can see some evolution of the asymmetry, appears to increase as nl04 decreases.

NEXT: Try again at 0.8 MA, see if MARFE is still lurking. Set nl04 demand to 1.0-0.6
Mar 25 2010 11:32:50:120AM1100325011Matt ReinkeGot a nl04 scan from 0.95-0.75 w/ a MARFE.

NEXT: nl04 from 0.8-0.4, same Ip/Bt
Mar 25 2010 11:45:35:517AM1100325012Matt ReinkeGood density scan (0.7-0.45)

NEXT: Lower Ip to 0.6 MA and repeat
Mar 25 2010 12:05:35:650PM1100325013Matt ReinkeGot a MARFE that really made the density evolution strange.

NEXT: repeat target w/ 1 MW ICRF from 0.5-1.5 and lower Ar to 100 ms puff
Mar 25 2010 12:37:38:313PM1100325015Matt ReinkeGood density ramp, but still got a MARFE despite RF

NEXT: Increase Ip to 0.8 MA, Decrease Bt to 4.0 T and turn off ICRF
Mar 25 2010 12:50:41:430PM1100325016Matt ReinkeGood nl04 ramp from 7.0-4.5

NEXT: repeat w/ Ip=0.6 MA
Mar 25 2010 01:31:26:100PM1100325018Matt ReinkeGood density scan w/ MARFE

NEXT: Lower Bt to 2.7 T, change nl04 scan to be 0.6-0.4
Mar 25 2010 02:13:57:837PM1100325021Matt ReinkeGood density scan (0.55-0.39). Also got a rotation reversal at 1.05

NEXT: Repeat locked mode shot (006). Enable helium for branching ratio calibration. Puff from 0.3-0.6
Mar 25 2010 02:27:30:527PM1100325022Matt ReinkeGood locked mode shot. He seen on the He II visible monitor but not enough in the VUV spectrum. Will try it again in a few shots.

NEXT: start lower density shots (nl04 from 0.6-0.2). Bt=5.4, Ip=0.8 MA
Mar 25 2010 02:39:14:843PM1100325023Matt ReinkeGood density scan (0.72-0.27). Got another rotation reversal.

NEXT: Reduce Ip to 0.6 MA. Add a 50 ms Ar puff at 1.2 to help keep up signal level.
Mar 25 2010 03:10:40:780PM1100325025Matt ReinkeGood density scan (0.52-0.32). Got a VERY slow rotation reversal on this shot.

NEXT: Lower Ip to 0.4 MA
Mar 25 2010 03:22:39:457PM1100325026Matt ReinkeEarly disruption w/ a MARFE after 0.63 seconds. Looks like a locked mode right before the MARFE. Abandon data point!

NEXT: Bt=4.0 T, Ip=0.8 MA
Mar 25 2010 03:35:42:397PM1100325027Matt ReinkeGood density ramp (0.6-0.3). Rotation reversal as well.

NEXT: Reduce Ip to 0.6 MA
Mar 25 2010 04:01:54:360PM1100325029Matt ReinkeGood density scan (0.5-0.25) and yet another rotation reversal

NEXT: lower Ip to 0.4 MA
Mar 25 2010 04:17:06:210PM1100325030Matt ReinkeHit another MARFE on this shot.

NEXT: Bt to 2.7 T, Ip to 600 kA
Mar 25 2010 04:30:31:263PM1100325031Matt ReinkeDecent density scan (0.54-0.39) but similar to 021. Got some kind of small MARFE and another rotation reversal.

NEXT: Large outer gap scan shot (1100205010) for HIREXSR spatial alignment check.
Mar 25 2010 04:48:06:740PM1100325032Matt ReinkeEarly disruption, looks like a possible locked mode.

NEXT: Blew a fuse which will be ~30 minutes...END OF RUN

Physics Operator Comments
Mar 25 2010 08:11:22:997AMBill RowanECDC
Ran in D2 until 6:30 when error was noted.
Ran in He from 6:30 to 8

Mar 25 2010 09:06:53:063AM1100325001Bill Rowanload segment 1 from 1100324020
load segment 2 from 1100226015
load segment 4 from 1100323023
segments 1 and 2 are on
dcps_piezo_chopper, outputs "pulse_gas1", 60% from 0.4 to 1.2 s, turned on
Load at 25-Mar-2010 08:47:58.00

enabled argon B-side lower and verified 2 psi

E-port antenna set to run from 1.4 to 1.5 as a test since it will be used later in the day, low power

cryo ready for the first shot


disruption at 0.2 s
there were two injections 0.15 s and 0.2 s.
The first notched the current.
The second appears to have caused the disruption.
Ninja found to be on at a late time (after disruption)
Mar 25 2010 09:19:21:477AM1100325002Bill Rowan002
No dpcs changes
Ninja off

disruption at 1.1 s
Maybe argon too high? Will drop for the next shot.
Injection at 0.12 s

Mar 25 2010 09:35:34:000AM1100325003Bill Rowan003.
Reduce the duty factor on the argon chopper to 30% based on SL assertion about non-linearity in chopper
Load at 25-Mar-2010 09:20:58.00

Disruption at 0.53 s
Locked mode

Mar 25 2010 09:45:04:017AM1100325004Bill Rowan004
nl_04 increased to 0.9e+20
ip decreased to 0.8 MA
Load at 25-Mar-2010 09:37:51.00

Full length plasma, disruption in rampdown
Marfe after 0.7
Injection at 0.68s

Mar 25 2010 09:47:20:253AM1100325005Bill Rowan005
lower the argon pressure to 1 psi, b-side lower, pg1
expecting marfe to disappear

Mar 25 2010 10:14:59:027AM1100325006Bill Rowan006
Loaded the locked mode shot. Turn off segment 2 and turn on segment 4
checked to assure the argon puff is set to 100% from 0.3 to 0.6 s
Load at 25-Mar-2010 10:02:42.00

Locked.

Mar 25 2010 10:49:18:243AM1100325008Bill Rowan008
reduced the argon puff. 0.3 to 0.45s at 100%
increase the current from 0.8 MA to 1 MA
Load at 25-Mar-2010 10:38:19.00

Fizzle
prefill pressure at 0.12. On 007, it was 0.08

Mar 25 2010 11:08:01:517AM1100325009Bill Rowan009
No PCS changes

Fizzle
Pressure was lower
Bounce

Mar 25 2010 11:17:44:570AM1100325010Bill Rowan010
Increase the prefill from 70 ms to 72 ms
Load at 25-Mar-2010 11:07:21.00

full length shot.
density scan okay

Mar 25 2010 11:32:54:150AM1100325011Bill Rowan011
reduced ip to 0.8 MA
nl_04 scan: 1.0@0.7s to 0.6@1.4s
Load at 25-Mar-2010 11:23:37.00

Marfe.
density scan acceptable.

Mar 25 2010 11:45:36:110AM1100325012Bill Rowan012.
nl_04 scan: 0.8@0.7s to 0.4@1.4s
Load at 25-Mar-2010 11:32:03.00

No marfe
Density scan okay

Mar 25 2010 12:04:25:070PM1100325013Bill Rowan013.
IP = 0.6 MA
Load at 25-Mar-2010 11:46:58.00

Marfe at 0.75 s. Seems to turn off. Takes a notch out of the density scan when it is on.

Mar 25 2010 12:21:07:060PM1100325014Bill Rowan014
Goal is to remedy the marfe
RF on from 0.5 to 1.5
Argon reduced and on 100% from 0.3 to 0.4 s
Load at 25-Mar-2010 12:07:06.00

Fizzle
Bounce
Mar 25 2010 12:41:50:300PM1100325015Bill Rowan015
No PCS changes

Nice ramp with some evidence of the marfe


Mar 25 2010 12:49:10:473PM1100325016Bill Rowan016.
Reduce the TF to 4 T from 5.46 T
TF current reduced from 150kA to 110 kA
Increased IP from 0.6 MA to 0.8 MA
RF off
Load at 25-Mar-2010 12:43:15.00

Full length shot
No marfe
Nice density scan
IP = 0.8 MA
TF = 4.1T
2 small injections: 0.46 and 0.56

Mar 25 2010 01:09:07:890PM1100325017Bill Rowan017.
IP reduced to 0.6 MA
Load at 25-Mar-2010 12:51:32.00

No power shot.

Mar 25 2010 01:29:01:443PM1100325018Bill Rowan018
Repeat previous setup

Marfe
IP=0.6 MA
Density scan -- does show evidence of marfe

Mar 25 2010 01:42:40:370PM1100325019Bill Rowan019.
TF reduced to 2.7 T from 4 T
TF current reduced from 110kA to 74.2 kA
nl_04 scan: 0.6@0.7s to 0.4@1.4s
Load at 25-Mar-2010 13:34:20.00

Disruption at 150 ms
Injection at 0.14 s, notches the current
Marfe at 0.3 s and that ends the discharge

Mar 25 2010 01:53:17:483PM1100325020Bill Rowan020.
No PCS changes

No power shot

Mar 25 2010 02:10:57:083PM1100325021Bill Rowan021.
No PCS changes
Attempt at successful 019.

IP=0.6 MA
No Marfe
density scan looks okay

Mar 25 2010 02:23:51:510PM1100325022Bill Rowan022.
Locked mode shot
turn segment 2 off and segment 4 on

Verified PG1, argon puff to be 100% and 0.3 to 0.6 s

Enable b-side upper, helium-3
Set PG2, helium-3 puff to be from 0.3 to 0.6

Load at 25-Mar-2010 14:16:09.00

Locked around 0.7 s

Mar 25 2010 02:37:07:453PM1100325023Bill Rowan023
turn segment 4 off and segment 2 on

IP increased to 0.8 MA

BT increased to 5.4 T from 2.7T
increaed TF current from 74.2 kA to 150 kA

nl_04 scan: 0.6@0.7s to 0.2@1.4s

Load at 25-Mar-2010 14:30:32.00


No marfe
IP=0.8 MA
BT=5.4T
Nice density scan

Mar 25 2010 02:52:24:677PM1100325024Bill Rowan024.
Add a 50 ms argon puff (PG1) at 1.1 s
Reduced IP from 0.8 MA to 0.6 MA
Load at 25-Mar-2010 14:43:39.00

Fizzle

Mar 25 2010 03:07:07:823PM1100325025Bill Rowan025.
Increased prefill from 72 ms to 74 ms
Assuming bounces are the problem
Load at 25-Mar-2010 14:53:33.0

Full length shot.
IP=0.62 MA

Mar 25 2010 03:23:06:237PM1100325026Bill Rowan026.
Decrease IP from 0.6 MA to 0.4 MA
Load at 25-Mar-2010 15:09:02.00

Injection at 0.5 s
Disruption at 0.7 s
Marfe at 0.62 which leads to the disruption at 0.7 s
Also locks

Mar 25 2010 03:37:28:867PM1100325027Bill Rowan027.
Increase the current from 0.4 MA to 0.8MA
Decrease TF from 5.4 T to 4 T
Decrease TF current from 150kA to 110 kA
Load at 25-Mar-2010 15:25:06.00

Full length shot
Disrupted in ramp down
IP=0.8 MA
BT=4.1 T

Mar 25 2010 03:47:36:370PM1100325028Bill Rowan028
Decrease IP from 0.8 MA to 0.6 MA
Load at 25-Mar-2010 15:39:05.00

Dud.
EF1U commutation fault

Mar 25 2010 04:11:20:927PM1100325029Bill Rowan029
Second attempt at setup for 028

Full length shot
IP=0.61 MA

Received a new automatic message
------------------------------------------------------------------------
*** alt bearing #2 vibration level > 1.40000 mil for shot 1100325029

*** Raw signal pk-to-pk : 1.65920 mil
*** fundamental pk-to-pk : 0.640125 mil
*** 2nd harmonic pk-to-pk : 0.764411 mil
*** 1st + 2nd pk-to-pk : 1.40454 mil
------------------------------------------------------------------------
Queried engineers and determined alternator operating normally
Mar 25 2010 04:02:53:110PM1100325030Bill Rowan030
Decrease IP from 0.6 MA to 0.4 MA
Load at 25-Mar-2010 16:02:37.00

Mar 25 2010 04:28:11:060PM1100325031Bill Rowan031
Decrease BT from 4 T to 2.7 T
Decrease TF current from 110 kA to 74.2 kA
Increase the current from 0.4 MA to 0.6 MA
Load at 25-Mar-2010 16:18:35.00

Full length
IP = 0.6 MA
BT=2.8 T

Mar 25 2010 04:48:20:097PM1100325032Bill Rowan032.
Load segment 3 from 1100205010 segment 3
This is a very impressive outer gap scan.

Turned off segment 2 and turned on segment 3
Load at 25-Mar-2010 16:33:03.00

Disrupted at 0.48 s
blew a fuse in OH2
End of the run

Engineering Operator Comments
ShotTimeTypeStatusComment
108:57:45:450AMPlasmaOk
209:11:41:753AMPlasmaOk
309:26:05:180AMPlasmaOk
409:40:13:560AMPlasmaOk
509:54:18:380AMPlasmaOk
610:11:21:900AMPlasmaOk
710:27:05:283AMPlasmaOk
810:41:58:850AMPlasmaOk
910:58:18:530AMPlasmaOk
1011:12:41:643AMPlasmaOk
1111:27:14:120AMPlasmaOk
1211:41:52:500AMPlasmaOk
1311:57:25:553AMPlasmaOk
1412:15:22:573PMPlasmaOk
1512:30:49:403PMPlasmaOk
1612:44:44:067PMPlasmaOk
1701:05:58:590PMPlasmaBadIgor failed no power
1801:25:17:363PMPlasmaOk
1901:38:20:197PMPlasmaOk
2001:52:45:420PMPlasmaBadIgor failed again
2102:07:14:020PMPlasmaOk
2202:19:53:463PMPlasmaOk
2302:33:06:123PMPlasmaOk
2402:46:49:893PMPlasmaOk
2503:02:47:040PMPlasmaOk
2603:16:48:343PMPlasmaOk
2703:30:38:693PMPlasmaOk
2803:44:46:840PMPlasmaOk
2903:57:51:483PMPlasmaOk
3004:10:57:050PMPlasmaOk
3104:24:30:683PMPlasmaOk
3204:37:28:860PMPlasmaOk

System Availability
Mar 25 2010 08:57:22:750AM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDnosecured - tagged outJun 02 2008 11:03AM (sears)Joe SnipesActive MHD Antennasears,snipes
BESyes7 horizontal views spread out R_maj=[0.72-0.9m], 3 cm over the tokamak midplane (beam) Jul 09 2009 05:12PM (bespam)Bill RowanBeam Emission Spectroscopybespam,liao,rowan
Bolometersyes2pi (diode+foil), AXA, AXJ, WB3AX, WB4AX, LEDGE-AX working fine. MID-FOILS working fine. The LEDGE/DIV foils still need calibrations appliedAug 27 2009 09:09AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
Boronizationyes Nov 13 2009 06:37AM (dekow)Jim IrbyBoronizationdekow,irby
CNPAnoSingle channel CNPA available as of 12/1707Jun 10 2009 10:22AM (twf)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertoryesOperationalNov 09 2009 09:12AM (irby)Brian LaBombardUpper Divertor Cryopumpirby,labombard
CXRSyesThe 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 RowanCharge Exchange Spectroscopybespam,blip,liao,rachmcd,rowan
D Alphayes\ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not availableJul 01 2009 09:45AM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayessystem is aligned and operating; not yet calibratedJul 14 2009 02:22PM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationyesoperational, but turned offNov 03 2009 04:59PM (granetz)Robert GranetzGas Jetgranetz,whyte
Divertor IRno Mar 06 2007 10:50AM Glen WurdenDivertor IR Digital Videogwurden,terry
Divertor IR Spectroscopyno Mar 06 2007 10:51AM Glen WurdenDivertor IR Spectroscopygwurden,terry
DNBnoin test mode onlyNov 03 2009 05:01PM (granetz)Robert GranetzDiagnostic Neutral Beamdterry,granetz,gung
ECDCyes Nov 09 2009 09:13AM (irby)Jim Irby2.45 GHz, 3 kW, discharge cleaning systemdekow,irby,pfeiffer
FRC-ECEyesAll channels working and calibrated.Feb 02 2010 09:56AM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesGauge installed. Controller repaired.Aug 23 2009 10:36PM (toland)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
Glow Dischargeno6/10/09: 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 AccessJun 10 2009 01:47PM (dekow)Jim Irby1 kV, 5 A, glow discharge systemdekow,dterry,irby
GPCyesOperational.Jul 28 2009 04:23PM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels operational.Jul 28 2009 04:23PM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPIyesThe 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 TerryGas Puff Imagingterry,zweben
H/Dyesposes no safety hazard for people working around the machineJun 18 2009 01:04PM (marmar)Earl MarmarH/D Ratiomarmar
HEATyes Oct 27 2009 10:39AM (dekow)Gary Dekow - Machine Heaters -burke,dekow
Hirex JryesHirex-Jr has been installed and testedJun 17 2009 11:54AM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex Sryescurrently only one detector is operational, off-axis He-like argon emissionJul 14 2009 10:01AM (rice)John RiceHigh Resolution X-Rayince,rice
HXRnoIn safe mode (high voltage turned off)May 27 2008 09:19PM (schmidt)Ron ParkerHard X-Ray Arrayparker,schmidt
ICRF D-Antennayesoperational at 80 MHzJul 21 2009 04:49PM (wukitch)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayesantenna and FFT operationalJul 21 2009 04:49PM (wukitch)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayesavailable at 80 MHz and [0,pi,0,pi] phasingSep 04 2009 10:01AM (wukitch)Steve WukitchJ-port antennawukitch,ylin
Laser Blow-OffyesRequires some advance notice for laser start-upOct 16 2009 12:46PM (g)Martin GreenwaldImpurity Injection Systemg,nthoward
Lower HybridnoBreaker locked and tagged out. Waveguide disassembly started. Open Waveguides have been shorted.May 28 2008 09:47AM (dterry)Ron ParkerLower Hybriddterry,parker,wallaceg
LPInoBeam line removedMay 30 2008 02:09PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphayesMidplane, WB4-LY, LEDGE-LY all collecting data. WB1-LY not attached.Aug 27 2009 09:10AM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesOperating normallyAug 27 2009 09:10AM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Recalibrated 7/27/09.Jul 28 2009 04:22PM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyesGauges are on. B-bottom is not operating - bad sensor head?Jul 14 2009 09:12PM (labombard)Brian LaBombardBaratron pressure gaugeslabombard
MLPnoSystem 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 LaBombardMirror Langmuir Probe Electronics Systemlabombard
MSEnoAs of 6/10/09, MSE is calibrated & ready to go. Awaiting DNB.Jun 10 2009 10:34AM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesNeutron detectors are calibrated and ready to go. Voltages will be turned on prior to first plasma.Jun 10 2009 10:35AM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesPower back on morning of 11/09 before runNov 09 2009 09:10AM (irby)Jim IrbyX-Ray/Neutron Detector at K-Horirby
NINJAnoCapillaries were tested in-vessel. Plenum has a leak and needs fixing.Jul 14 2009 09:14PM (labombard)Brian LaBombardNINJA gas pufflabombard,terry
PCIyesOperational.Nov 12 2009 02:36PM (ntsujii)Miklos PorkolabPhase Contrast Imagingarai,ennever,ntsujii,porkolab
Penning GaugesyesHigh voltage is enabled (on during INIT, off during RECOOL).Jun 30 2009 09:42PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational.Jul 01 2009 09:46AM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoSafe for Machine EntrySep 14 2007 12:17PM (irby)Jim IrbyC-Mod Polarimeterirby
Power - Alternator Air SwitchyesChecked and Operational as of 06/18/09Jun 19 2009 08:04AM (irby)Gary Dekowfeeds all the other suppliescochran,dekow,dterry,irby
Power - PEIyes Nov 13 2009 06:38AM (dekow)Gary DekowPEI Systemcochran,dekow,dterry,irby
Power - TMXyesChecked out and ready for Magnet Tests as of 06/18/09Jun 19 2009 08:07AM (irby)Gary DekowEf2s,. EFCs and A-Coilsbyford,cochran,dekow,dterry,irby
Power SystemsyesChecked out and ready for Magnet Tests as of 06/18/09Jun 19 2009 08:07AM (irby)Jim IrbyC-Mod Magnet Suppliesbyford,cochran,dekow,dterry,irby
Probe Array - ISDyesArray is operational with new cPCI data system. Probe 14 has open circuit.Jul 14 2009 09:17PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHnoLH launcher not installed. Cables are unplugged at the A-port rack.Jul 14 2009 09:16PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesArray is operational with new cPCI data system.Jul 14 2009 09:16PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyesArray is operational with new cPCI data system. Probe 13 has a bad cable (open).Jul 14 2009 09:17PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometeryesSince 1100120000 the system is operational except for channel 110 which is not installedJan 20 2010 09:17AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesProbe is operational. Needs plasma conditioning.Jul 14 2009 09:18PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesProbe is operational. Needs plasma conditioning.Jul 14 2009 09:18PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesSystem connected to A-port WASP. Needs plasma testing.Jul 14 2009 09:19PM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
SparkeryesSparker back in operation before 11/09 runNov 09 2009 09:11AM (irby)Jim IrbyField Emission Preionization for C-Moddekow,irby,parkin
TCIyesSystem restarted and aligned. Several chords available including NL04. Density Feedback available. Ready for plasma.Jun 18 2009 09:15AM (murray)Jim IrbyTwo-Color Interferometerirby,murray
TS - Coreyes2 lasers working. 15 spatial channels operational. Calibrated Oct 13 2009 07:49PM (yma)Jerry HughesCore Thomson scatteringjwhughes,yma,zhang
TS - EdgeyesOperational, and calibrated.Oct 11 2009 03:01PM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes,yma,zhang
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58AM (agraf)Alex GrafVisible Spectrometeragraf
XTOMOyesOperating normallyAug 27 2009 09:10AM (mlreinke)Bob GranetzX-Ray Tomographygranetz,mlreinke