Alcator C-Mod Run 1080116 Information

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Miniproposals
Miniproposal:459a
Date Filed: 1/7/2008
Title:VUV Spectrometer Calibration using Kryp-ton
First Author:Matt Reinke
Session Leader:Matt Reinke (shots 1-15)
Miniproposal:520
Date Filed: 1/9/2008
Title:Sawtooth Evoluiton Studies
First Author:Alex Ince-Cushman
Session Leader:Alex Ince-Cushman (shots 16-28)

Operators
Session leader(s):Matt Reinke,Alex Ince-Cushman
Physics operator(s):Bill Rowan
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: Jan 15 2008 04:36:51:337PM
Author: Matt Reinke
MP 459a: VUV Spectrometer Calibration Using Krypton

SL: M. Reinke
PO: W. Rowan

The purpose of this experiment is to create calibration plasmas for the McPherson VUV spectrometer. Strong krypton puffing into an ICRF heated, high density, pumped USN L-mode should allow highly radiative dischrages dominated by krypton emission.

Diagnostics: All possible Te and ne profile diagnostics (GPC1 and GPC2, edge/core TS, TCI, FRC). CHERS specialy configured (n=18-17 3605 angstroms)

Beam timing: 150 ms on, 150 ms off full beam current starting at 0.3 and ending at 1.5 seconds.
B-SIDE lower pressure: 0.5 psi of Krypton (increase shot2shot as requested)
Start with cryopump cold for first shot

Shot# 1-2: Establish USN, 1 MA, pumped L-mode with 2 MW ICRF (0.4-1.5 seconds) at nl04=1.0e20. Load from 1070830032. Set krypton puff to 100 ms at 0.3 seconds.

Shot# 3-7: Increase krypton puff to 0.3-0.8 seconds and then 0.3-1.3 seconds. Adjust plenum pressure and RF power level as necessary to maintain SS radiative dischage. Increase RF to maximum SS level or until Li/Be-like Kr is present. View Na/Mg-like wavelength region on McPherson.

Shot# 8-11: At best discharge from (003-007) scan McPherson in wavelength

Shot# 12-16: OPTIONAL Scan Na/Mg wavelength region in space using best shot.



Entered: Jan 15 2008 07:50:02:167PM
Author: Alex Ince-Cushman
MP 520: Sawtooth Evolution Studies

Session Leader: Alex Ince-Cushman (afternoon)
Physics Operator: Bill Rowan

The goal of this experiment is to measure the evolution of toroidal
rotation and ion temperature profiles within a sawtooth oscillation.

Diagnostics: Hirex, Thomson, Edge Thomson, GPC, Bolometer arrays, McPherson,
Chromex, CXRS, FRC, VISSPEC (viewing He-like Ar CX lines using the edge
toroidal periscope).

Step 1: (1-2 shots) Locked mode shots for velocity calibration. Based on
Shot 1070830020. Ip = 0.8, nl04=0.4e20. Turn off A-coils at 1.0 to let
locked mode develop. Argon puff 200ms @ 0.3s

TURN CRYOPUMP ON

Step 2: (6-8): Establish USN, 1 MA, pumped L-mode with 2 MW ICRF at
nl04=1.0e20. Then Ramp up RF and puff.

Load 1070608023. Argon pressure @ 1.5 psi, 500ms puff @ 0.3s, 2MW RF
Load 1070608030. Argon pressure @ 2.3 psi, 1.0s puff @ 0.3s, 3.5 MW RF
Load 1070608032. Argon pressure @ 2.8 psi, 1.0s puff @ 0.3s, 4.5 MW RF

Step 3: (3-4): Adjust RF Phasing to optimize sawtooth period.
Step 4: If time permits attempt discharges at Ip = 0.8 MA and 1.2 MA

Physics Operators Plans
Entered: Jan 16 2008 07:58:21:040AM
Author: Bill Rowan
Physop Run Plan for 16 Jan 2008, Run 1080116

MP459A VUV Spectrometer Calib. w/Krypton
MP520 Sawtooth evolution studies


SL: Reinke for MP459A
Ince-Cushman for MP520
PO: Rowan

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

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

Power systems as on: 1070830032

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

Gas setup:

NOTE: B-side lower is NOT as for normal operation. Note pressure and gas.

Fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 0.5 psi KRYPTON Hybrid DISABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
fill NINJA with 10 psi D2 DISABLED

Enable gatevalves and shutters: ECE, VUV, DNB, Z-bolo

Torvac gatevalve toggle (yes/no):Yes

Boronization(yes/no): no
Overnight ECDC (yes/no): Yes
ICRF(yes/no): yes
LH(yes/no): no
DNB(yes/no): yes
Cryopump (yes/no): Yes

Vessel temperature: 35/35/35

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

------------------------------
Run Plan.
------------------------------
First run MP459a for Reinke. This requires krypton puffing through the valve normally used for Ar.

Then run MP520 for Ince-Cushman. This will require a change of the shot for the power systems. Refill B-side lower with argon.

Results 1 - 4 of 4.

Entered: Jan 16 2008 08:22:47:020AM
Author: Bill Rowan
Confirmed that Kr is in the B-side lower plenum. 0.5 psi
changed PG3: puff on at 0.3 s and off at 0.4 s

Entered: Jan 16 2008 08:56:07:200AM
Author: Bill Rowan
enabled krypton
Entered: Jan 16 2008 08:56:22:730AM
Author: Bill Rowan
Cryo pump on for the first shot.
increase prefill from 22 ms used on 1080115028 to 35 ms

Entered: Jan 16 2008 09:01:04:347AM
Author: Bill Rowan
ef3 control problem before the first shot
Entered: Jan 16 2008 09:12:20:640AM
Author: Bill Rowan
001. Plasma. Disruption at 1.1s
Entered: Jan 16 2008 09:25:13:203AM
Author: Bill Rowan
No RF
cryo pump ran

Session Leader Summaries
Entered: Jan 16 2008 05:54:04:447PM
Author: Matt Reinke
MP 459a: VUV Spectrometer Calibration Using Krypton

Ok run day. We had problems with RF the first half of the morning. E was having problems matching so we had to rely heavily on J, while D was fine. Drops in the RF were leading to disruptions but we still got useful data from most shots.

The primary goal of the run was to collect McPherson spectra from plasmas where krypton dominated the radiated power. We were able to collect the data for the Na/Mg-like lines but did not have enough RF to reach the Te necessary for Li/Be-like lines.

We demonstrated the ability of the cryopump to maintain a steady state krypton puff, which is great news. For nl04=1.0e20, RF=4.0 MW the plenum pressure was 1.2 psi with a puff from 0.3 to 1.3 seconds.

We saw some lines on HIREXSR, but the signal levels were very low and the wavelengths did not match anything from list of known lines. This indicates that they will probably not be useful for quantitative transport analysis.

We were unable to see any clear Kr charge exchange using the beam, but the beam was in very poor shape (low current) so I'd like to try this again at some point.

We didn't get to the spatial scan of the McPherson due to a lack of time.
Entered: Jan 16 2008 06:59:44:363PM
Author: Alex Ince-Cushman
MP 520: Sawtooth Evolution Studies

The locked mode portion of the experiment was successful. Two steady locked mode discharges were obtained (Shots 16 & 20) with sufficient argon levels to provide a good wavelength calibration for Hirex-Sr.

The intra-sawtooth profile measurement portion of the run was partially successful. Due to a problem with J port we are unable to use RF phasing techniques to generate monster sawtooth oscillations. We did, however, take data at the maximum Hirex-sr frame rate (200Hz) on 3 discharges (21, 24 & 25) with moderate sawtooth oscillation periods.

The â??tooth-to-toothâ?? repeatability was quite good during the flattop portions of these discharges and so it should be possible to â??addâ?? sawtooth oscillations together to improve the quality of the data. There are clear indications of sawtooth modulation on emissivity and ion temperature during these discharges but, inexplicably, the rotation signal seems to be oscillating at a frequency other that the sawtooth frequency.

Physics Operator Summaries
Entered: Jan 16 2008 06:48:15:400PM
Author: Bill Rowan
The discharges today were near 1 MA plasma current, 5.4 T field, and ICRF heating in excess of 1 MW.
There were copious quantities of puffed impurities, argon and krypton

The cryopump was used on essentially every shot. It was necessary to assure that it actually achieved
and held low pressure before each shot. There were examples of burps which in some cases rose as
high as the 10**-4 range.

We made significant progress on two miniproposals today. MP459A VUV Spectrometer Calib. w/Krypton
and MP520 Sawtooth evolution studies.

For MP454A, krypton was puffed into the discharge with ICRF heating. The krypton puff was balanced
against cryopumping to maintain a constant, high level. ICRF heating prevented radiative collapse of
the discharge.

After completion of the first MP, there was a break of approximately an hour to work on ICRF.

For MP520, argon was puffed into discharges with a locked mode and discharges selected for large
amplitude sawteeth. See SL report for details.
Both discharges were easy to simply "dial-up"

Score card
22 plasmas (001,002,003,005,006,007,008,009,010,011,012, 013,014,015,016,017,018,019,020,021,024,025)
06 fizzles (004,022,023,026,027,028)
-----------
28 total


Session Leader Comments
Jan 16 2008 09:19:28:837AM1080116001Matt ReinkePRAD linearly increasing from 0.6 till disruption. B-SIDE LOWER programming was wrong and the gas puff was on continuously. Also no RF so radiation quickly killed the plasma.

NEXT: Repeat
Jan 16 2008 09:40:35:673AM1080116002Matt ReinkeKr gas puff to 100 ms puff but little to no Kr seen in plasma.
RF = 0.75 MW

NEXT: increse RF to 3 MW and Kr puff to 500 ms starting at 0.3
Jan 16 2008 09:56:34:863AM1080116003Matt ReinkeGood shot. Have evidence of the Kr being pumped by the cyro from the Na-like in on the McPherson. RF = 1.0 MW.

Next: Repeat and try to bring up RF.
Jan 16 2008 10:21:36:017AM1080116005Matt ReinkeRF is getting there. Kr still showing pumping. Need steady RF before pressure can be increased.

Next: Repeat
Jan 16 2008 10:40:12:023AM1080116006Matt ReinkeGood RF, was tripping on the H-modes. Increse plenum pressure and pulse length for SS radiative discharge.

Next: RF = 3.0, Press= 0.80, puff time = 0.3-1.3 seconds.
Jan 16 2008 10:53:15:583AM1080116007Matt ReinkeGood shot, got SS radiative L-mode. Peak Te is about 3.5. Need to increase to get more Li/Be-like.

Next: RF to 4.0 MW, after that increase the plenum pressure to 1.1 psi
Jan 16 2008 11:01:19:673AM1080116008Matt ReinkeGot H-modes again with RF at 4.0 MW. Increasing plenum pressure

Next: same RF, plenum pressure at 1.2 psi
Jan 16 2008 11:29:05:767AM1080116009Matt ReinkeGood shot. ICRF limited by E-Port not being able to tune to this shot. Could bypass with a cell access, but I'm getting a large amount of Kr in, so I'll use this discharge for the spectral scan.

Next: Repeat but McPherson moved from 240 to 205 angstroms.
Jan 16 2008 11:46:07:193AM1080116010Matt ReinkeEarly disruption, but got some SS section. Will move on in spectra and come back if time.

Next: Repeat shot WL = 185 angstroms.
Jan 16 2008 12:01:44:960PM1080116011Matt ReinkeEarly disruption again caused by lack of RF power. Steve says J is arcing. Reduce demand to try and get clean RF.

Next: RF to 3.5 MW, move to 160 angstroms.
Jan 16 2008 12:15:03:447PM1080116012Matt ReinkeGood shot. See both Mg and Na like lines. No evidence of significant Li and Be like, but that's not suprising since Te is only ~3.5 keV.

Next: Repeat, move to 170 angstroms to better center lines.
Jan 16 2008 12:28:42:133PM1080116013Matt ReinkeEarly disruption, no SS level.

Repeat shot:
Jan 16 2008 12:50:11:533PM1080116014Matt ReinkeGood shot. Steve says we cooked something on J and it's a long time to repair. Try with D & E at 3 MW.

Next RF=3.0 MW with WL = 145.0 Ang. Then I'm done. Steve says a 1 hour power room access to fix J which is necessary for 2nd half of run day.
Jan 16 2008 01:01:12:933PM1080116015Matt ReinkeGood shot, disruption halfway through. I'm done with this run.
Jan 16 2008 02:38:11:003PM1080116016Alex Ince-CushmanGood locked mode starting at 0.8s. Argon puff at 200ms. Argon levels are good. No sign of Kr from the previous shots. Increase Ar puff to 300ms for the next discharge.
Jan 16 2008 06:04:30:677PM1080116020Alex Ince-CushmanGood locked mode shot. Central rotation seems to go to zero in two discrete steps. We are now finished with the locked mode portion of the MP and will move on to sawtooth studies.


Jan 16 2008 06:37:47:090PM1080116021Alex Ince-CushmanTry to re-run shot 15 using Ar instead of Kr. The Hirex-Sr frame rate was reduced to 5ms to make multiple measurements per sawtooth oscillation. Ar signal levels should be sufficient for profile inversions. Sawtooth period of 16-20ms.
Jan 16 2008 06:40:05:403PM1080116024Alex Ince-CushmanAr Signal levels similar to shot 24. Sawtooth periods ~18-20ms.
Jan 16 2008 06:42:54:017PM1080116025Alex Ince-CushmanCurrent increased to 1.2MA. Ar Signal level is still good. Sawtooth periods seem to have shortened ~15ms.

Physics Operator Comments
Jan 16 2008 07:57:21:383AMBill Rowanreloaded 1070830032
segment 4 is active
recalculated predictors for seg02 - 04
Loaded

reload seg 1 from 1080115028 for breakdown
Loaded

Jan 16 2008 09:43:20:787AM1080116002Bill Rowan002. Plasma. Disruption at 1.4s

Next shot. increased kr puff to 500 ms Working on the ICRF

Jan 16 2008 09:56:10:817AM1080116003Bill Rowan003. Plasma.

Next shot. Repeat.

Jan 16 2008 10:06:03:763AM1080116004Bill Rowan004. Fizzle
The pressure was quite high due to a cryo burp.
0.13 mT at 0 s

Next shot. Try again.

Jan 16 2008 10:25:09:083AM1080116005Bill Rowan005. Plasma.
The pressure just before the shot made strong excursions but was dropping
past 4e-07 at the time of the shot.
Pressure at t=0 was approx 0.08 mT. Higher than it was running earlier.


Next shot.
No PCS changes

Jan 16 2008 10:34:58:097AM1080116006Bill Rowan006. Plasma

Next shot
Moved rxu down by 5 mm
Moved zxu out by approx 5 mm

Jan 16 2008 10:36:55:300AM1080116006Bill RowanIncreased the pg1 pressure

Jan 16 2008 10:40:23:367AM1080116006Bill RowanIncreased the pg1 pressure 0.8psi

Jan 16 2008 10:44:43:327AM1080116007Bill Rowan007. Plasma
large pressure excursions after cryo cools for a shot
we are waiting until the pressure is in the range of 3e-07 before taking the shot
during check, it jumped into the 10-5 range and then came back down to 3e-07 just before the shot

Jan 16 2008 11:00:52:733AM1080116008Bill Rowan008. Plasma
increase the pg1 to approx 1.2 psi

Next shot.
No PCS changes
Jan 16 2008 11:26:17:187AM1080116009Bill Rowan009. Plasma
Cryo excursions continue but 1.7e-07 at the time of the shot.

Next shot
Added 1 ms to the prefill. It is now 36 ms

Jan 16 2008 11:41:24:517AM1080116010Bill Rowan010. Plasma. Disruption at 1 s

Next shot.
No PCS changes
Jan 16 2008 11:55:33:780AM1080116011Bill Rowan011. Plasma. Disruption at 1.0 s

Next shot.
No PCS changes.
Reducing RF power to get a clean pulse

Jan 16 2008 12:13:55:710PM1080116012Bill Rowan012. Plasma. Disrupted only after rampdown started.

Next shot.
No PCS changes

Jan 16 2008 12:27:37:100PM1080116013Bill Rowan013. Plasma. Disruption at 1 s

Next shot. Increase prefill to 37 ms
Jan 16 2008 12:48:11:843PM1080116014Bill Rowan014. Plasma.

Next shot.
No PCS changes

Jan 16 2008 02:21:53:107PM1080116015Bill Rowan015. Plasma

Next shot.
change to MP520. SL: Ince-Cushman
Loaded argon into b-side lower. pressure is 1.5 psi
Load from 1070608023. Recalibrated predictors for segments 2 and 3.
Reload segment 1 from 014.
Cryo to remain on.

Sl made an error on the shot number
Load from 1070830023. Recalculated predictors for segment 2, 3, and 4
Reload segment 1 from 014
changed PG1: on at 0.3 and off at 0.8
New power systems shot is 1070830023

The RF repairs will not be possible so we must go to a different part of the run
locked mode shot
New power supply setup shot is 1070830020
Loaded from 1070830020. Recalculated predictors for segment 2, 3, and 4
Segment 3 is the one that is in use.
graphical entries in b21_proj wire are zeroed
changed PG1: on at 0.3 and off at 0.5

Jan 16 2008 02:35:13:607PM1080116016Bill Rowan016. Plasma.
Locked.

Next shot.
disabled the c-coils
increased argon puff. start at 0.3 and end at 0.6

Jan 16 2008 02:42:04:717PM1080116017Bill Rowan017. Plasma
Disruption at 1 s

Next shot.
re-enabled the c-coils
Ninja puffing from the inner wall as agreed by SL

Jan 16 2008 03:03:41:140PM1080116018Bill Rowan018. Plasma
Disruption at 0.6 s

Next shot.
Reduce the argon puff to 200 ms

Jan 16 2008 03:11:47:260PM1080116019Bill Rowan019. Plasma
Disruption at 0.7 s

Next shot
Reduce the argon puff to 100 ms

Jan 16 2008 03:39:53:493PM1080116021Bill Rowan021. Plasma
Density is lower than expected

Next shot.
Increase ip to 1.2 MA

Jan 16 2008 03:47:01:597PM1080116022Bill Rowan022. Fizzle

Next shot.
Increase prefill by 2 ms

Jan 16 2008 03:56:34:437PM1080116022Bill Rowan022. Fizzle

Next shot.
Revert to a previous shot. Interesting results on 021.
change nl_04 demand to produce 1.2e+20
Jan 16 2008 04:20:14:227PM1080116024Bill Rowan024. Plasma

Next shot.
Increase plasma current to 1.2 MA



Jan 16 2008 04:32:09:740PM1080116025Bill Rowan025. Plasma

Next shot.
nl_04 demand = 0.,8e+20
Jan 16 2008 04:55:52:880PM1080116027Bill Rowan027. Fizzle

next shot
reduce prefill by 2 ms to 38 ms

Jan 16 2008 05:08:25:770PM1080116028Bill Rowan028. Fizzle

Last shot.

Engineering Operator Comments
ShotTimeTypeStatusComment
109:09:50:433AMPlasmaOk
209:27:52:423AMPlasmaOk
309:46:05:757AMPlasmaOk
409:59:28:490AMPlasmaOk
510:13:29:337AMPlasmaOk
610:26:22:880AMPlasmaOk
710:42:11:977AMPlasmaOk
810:56:55:260AMPlasmaOk
911:16:30:783AMPlasmaOk
1011:34:49:150AMPlasmaOk
1111:49:53:603AMPlasmaOk
1212:02:37:040PMPlasmaOk
1312:16:04:913PMPlasmaOk
1412:29:57:820PMPlasmaOk
1512:53:26:240PMPlasmaOk
1602:23:49:920PMPlasmaOk
1702:37:44:123PMPlasmaOk
1802:50:34:360PMPlasmaOk
1903:03:35:220PMPlasmaOk
2003:16:12:420PMPlasmaOk
2103:29:23:293PMPlasmaOk
2203:42:15:433PMPlasmaOk
2303:56:32:997PMPlasmaOk
2404:11:53:720PMPlasmaOk
2504:25:54:483PMPlasmaOk
2604:39:35:877PMPlasmaOk
2704:52:09:513PMPlasmaOk
2805:06:13:703PMPlasmaOk

System Availability
Jan 16 2008 09:09:29:043AM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDyesFully operationalMar 28 2007 09:19PM (sears)Joe SnipesActive MHD Antennasears,snipes
BESyesvertical array of six views at R ~ 87.3 cm, radial array of three views out to R ~ 89 cm, both at outboard midplane. Three discrete fiber views of beam at R ~ 70.0, 76.5 and 82.5 cm.Feb 06 2007 10:00AM (bravenec)Ron BravenecBeam Emission Spectroscopybravenec
BolometersyesDiode 2pi working fine, foil 2pi being low-pass filtered to remove noise. Outboard miidplane AXUV fine. Midplane foils working fine, but need to fill tree with calibrations. 2D AXUV arrays are being digitized but need further debugging and calibration.Dec 19 2007 07:16PM (mlreinke)Matt ReinkeBolometershutch,mlreinke
BoronizationnoFirst Boronization 5/9/07 Bottle has been removed from the cellSep 14 2007 12:42PM (dekow)Jim IrbyBoronizationdekow,irby
CNPAyesSingle channel CNPA available as of 12/1707Dec 17 2007 05:48PM (parker)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertoryesCryopump is operationalDec 11 2007 10:13AM (labombard)Brian LaBombardUpper Divertor Cryopumpirby,labombard
CXRSyesThe pedestal toroidal array was installed, spatially and absolutely calibrated. There are 10 chords intersect the beam at the major_R_range=[74.2:86.3]cm. Spatial resolution: 1.2 cm. The F-top poloidal array was installed and spatially calibrated. There are 19 chords intersect the beam at the major_R_range=[67.8:91.0]cm. Spatial resolution: 1.22 cm.Nov 27 2007 10:21AM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,rachmcd,rowan
D Alphayes\ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are availableNov 26 2007 04:23PM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayesoptics repaired, camera re-installed, and view has been re-calibratedNov 27 2007 09:54AM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationno Nov 20 2007 10:47PM (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
DNBno Nov 20 2007 10:47PM (granetz)Robert GranetzDiagnostic Neutral Beambeals,granetz
FRC-ECEnoProblem with LO'sJan 10 2008 01:17PM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesGauge is operational and calibrated against G-side MKS on shot#1071127002Nov 27 2007 01:25PM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
GPCyesAll 9 channels operational as of new year.Jan 03 2008 09:31AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels operational.Jan 02 2008 12:22PM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPInoNeither the Xpt-view nor the midplane-view camera is operational. Nov 26 2007 04:25PM (terry)Jim TerryGas Puff Imagingterry,zweben
H/DyesShould be operational for the FY08 campaignNov 27 2007 09:54AM (marmar)Earl MarmarH/D Ratiomarmar
Hirex Jryes Mar 06 2007 08:59AM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SrnoBe Window has a leak and so the gate valve is closedNov 23 2007 12:50PM (ince)John RiceHigh Resolution X-Rayince,rice
HXRyesSomething might be wrong with channel 26; all others working fine.Mar 23 2007 10:43AM (schmidt)Ron ParkerHard X-Ray Arrayparker,schmidt
ICRF D-Antennayesavailable (quarter-wave transformer for pre-matching)Dec 11 2007 09:01AM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayesavailable (with FFT for automatical matching)Dec 11 2007 09:01AM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayesnormally in [0,pi,pi,0] phase for heating. current drive phase available if requested.Dec 11 2007 09:03AM (ylin)Steve WukitchJ-port antennawukitch,ylin
Lower HybridyesBody I Fault Circuits Repaired and tested. High power tests completedDec 05 2007 06:40PM (dterry)Ron ParkerLower Hybriddterry,parker
LPIyes1/9/08Jan 09 2008 03:23PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphayesMidplane working fine, emissivity profiles being stored in tree, but still need to apply in-vessel calibrations to data. WB1-LY being digitized, but not processed in tree.Dec 09 2007 06:53PM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesWorking fine.Nov 29 2007 01:36PM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesWorking, moderate speed for now.Jan 02 2008 01:19PM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyesE-Top, E-Bottom, F-top (cryo), G-side, and B-bottom are operational. F-top gauge has a 'sniffer tube' to measure pressures in cryopump gas box.Mar 20 2007 06:42PM (g)Brian LaBombardBaratron pressure gaugeslabombard
MLPnoInitial tests on the A-port scanning probe went well. We need to take care of some control glitches that caused some component failures. May 30 2007 08:01PM (labombard)Brian LaBombardMirror Langmuir Probe Electronics Systemlabombard
MSEnoWe are basically awaiting the DNB & its new aperture. MSE itself is OK. 5 photo detectors have been shipped out for repair, so currently only 5 channels are available. We expect the full channels will be available late in Jan 08.Jan 04 2008 01:11PM (jinseok)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesVoltage is on for the He3 bank. Voltage will be turned on for the global system at the first plasma attempts.Nov 26 2007 08:31AM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and Hardsyescalibration unchanged from 2007 campaignDec 04 2007 08:56PM (irby)Jim IrbyX-Ray/Neutron Detector at K-Horirby
NINJAyesAll capillaries displayed by the NINJA_CONTROL GUI have been tested. Nov 26 2007 04:26PM (terry)Brian LaBombardNINJA gas pufflabombard,terry
PCInoBoth CO2 and HeNe Lasers are disabled----- safe for machine entry.Sep 14 2007 03:21PM (lianglin)Miklos PorkolabPhase Contrast Imagingedlund,lianglin,ntsujii,porkolab
Penning GaugesyesAll gauges except B_DivL are operatingNov 27 2007 01:31PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational.Nov 26 2007 04:27PM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoSafe for Machine EntrySep 14 2007 12:17PM (irby)Jim IrbyC-Mod Polarimeterirby
Probe Array - ISDyesOperationalNov 27 2007 01:40PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesOperationalNov 27 2007 01:40PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesOperationalNov 27 2007 01:41PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyesOperationalNov 27 2007 01:41PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
Reflectometeryes50, 60, 75 and 88GHz channels are connected and being tested for the campaignDec 18 2007 10:28AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesOperational, but needs to be checked with plasma.Nov 27 2007 01:45PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesFSP is operationalDec 11 2007 10:13AM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesA- and K-port WASP electrodes have been replaced/tested.Nov 27 2007 01:44PM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
TCIyesCO2 Laser is on --- initial alignment completeNov 16 2007 01:23PM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - Coreyes8 polychromators, 1 laser. Density is uncalibrated. Jan 03 2008 08:31AM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes,yma
TS - EdgeyesSystem is working. Alignment w.r.t. YAG is not optimized yet, so measurements may be noisy. Density is uncalibrated. Jan 09 2008 09:07AM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes,yma
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58AM (agraf)Alex GrafVisible Spectrometeragraf
XTOMOyessystem operationalJan 10 2008 11:41AM (mlreinke)Bob GranetzX-Ray Tomographygranetz,mlreinke