Alcator C-Mod Run 1080115 Information

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Miniproposals
Miniproposal:473
Date Filed: 3/9/2007
Title:Lower Hybrid System Check-out and Initial operation
First Author:J. Randall Wilson
Session Leader:Greg Wallace (shots 1-28)

Operators
Session leader(s):Greg Wallace
Physics operator(s):Jim Irby
Engineering operator(s):Bill Cochran,Bill Byford,Ed Fitzgerald

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

Session Leader Plans
Entered: Jan 14 2008 09:16:38:737AM
Author: Greg Wallace
Session leader plan for 1080115
Session leader: G. Wallace
Physics operator: J. Irby
MP 473: Lower Hybrid System Check-out and Initial operation

The purpose of this run will be to isolate the damage by ICRF on the LH launcher
and to find conditions under which we can operate both systems without causing
harm to either.

Plasma setup: Overnight ECDC. Starting shot will be 1080109002. No NINJA at
first.

LH setup: 2.5mm behind limiter, 90deg current drive phasing, 85kW per klystron
at 40kV beam voltage, firing from t=.7 to 1.3s. Be prepared to set launcher to
1.5, 2.5, 3.5, 4.5mm during the run. These values have been calculated and
written on the sheet in the cell.


(very rough) Shot plan:
1) Repeat of shot 1080109002, i.e. no NINJA, no ICRF, upper null, 1.5cm outer
gap, and ~500kW LH power. The launcher will be at 2.5mm behind limiter vs 1.5mm
behind limiter, though.

2) Same plasma as shot 1. Turn off LH and run 2MW on J from 0.7 to 0.9s, 1MW on
E from 0.9 to 1.1s, and 1MW on D from 1.1 to 1.3s. Look to see when/if glowing
appears on LH launcher.

3) Repeat shot 2 but add LH from 0.7 to 1.3s at 85kW per klystron.

4) If glowing is visible on shots 2-3, turn on ICRF antenna which causes
strongest glow from 1.0 to 1.3s at 1-2MW. Keep LH on from 0.7 to 1.3s.
Increase outer gap to 2.5cm.

or

Start stacking antennas and raising power until glowing starts.

5) If glow is still visible, increase outer gap to 3.5cm.

or

If coupling is degraded due to increased outer gap/ICRF, add 5psi NINJA puff
from 0.55 to 1.15s.

6) If increasing outer gap works, turn up RF and LH power until we see glowing
again. As glowing comes back try increasing outer gap again.

7) If increasing outer gap does not make the glowing go away, move launcher to
3.5mm behind the limiter.



8) Repeat steps 1-7 (roughly) in lower null. Start with equilibrium from
1071219015 but program density to 4e19 (or as low as possible). Decrease J to
1.5MW if we are going into H-mode.

Physics Operators Plans
Entered: Jan 14 2008 08:08:09:467PM
Author: Jim Irby
-----------------
Engineering Setup
-----------------

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

Power systems as on: 1080109002

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

Gas setup:

Fill B-Top with 6 psi D2 Hybrid enabled (PG4)
fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1)
leave B-side upper as is Hybrid DISABLED (PG2)
fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3)
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): yes
DNB(yes/no): yes
Cryopump (yes/no): no

Vessel temperature: 35/35/35

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

Session Leader Summaries
Entered: Jan 16 2008 04:56:25:020PM
Author: Greg Wallace
Session Leader Summary for 1080115:

The day started out slowly with some computer problems and a leak in the
alternator air valve. First plasma shot was at 10:45.

All shots on this day were with the LH launcher at 2.5mm behind the LH limiter.
Similar shots on 1080109 were conducted at a 1.5mm launcher position. Compared
to these earlier shots coupling was quite poor despite similar (~4e17 m^-3)
densities on the LH probes. (Compare 1080115002 to 1080109002)

After establishing a coupling baseline, it was determined that the D-port ICRF
antenna was indeed causing the glowing problems seen on the LH grill.
Unfortunately the LH camera view had shifted since the week before and the worst
spot of the glowing was not visible with that camera. The WIDE2 camera did have
a view of the entire grill, although not with high enough resolution to tell
exactly where the glowing was coming from.

Many injections were observed coming from the LH antenna on several shots (10,
12, 13, 16, 18, 22), some causing disruptions (10, 22). These injections seem
to be very well correlated with power from the D antenna, even with outer gaps
of ~2.5cm.

Operation later in the day with 2MW from J-port proved successful. The coupling
of the LH system was noticably worse with the ICRF on, but still tolerable (few
trips).

Tests with the NINJA system on did not show any clear improvement in coupling
with or without ICRF. This seems to be the final nail in the coffin for the
NINJA LH capillaries.

Physics Operator Summaries
Entered: Jan 15 2008 06:20:05:847PM
Author: Jim Irby
The first 1.5 hours of the run were spent getting the data system going
and verifying that the alternator/power room air switch was okay. We
lost a little more time checking that the TF supplies were sharing
properly.

Machine generally ran well. We had some fizzles that are correlated
with large impurity levels on the RGA. Problems began around shot 16,
after which the impurities remained high until I stopped toggling the
gatevalves. Levels then trended down shot to shot. Somewhat
surprising. Shot 16 was the first shot with ninja at 10 psi; it had a
late MARFE and large density rise from the puff. Following this shot we
had the large impurity levels, with a fizzle on shot 17.

On several shots today we blew off some metal from the lower hybrid probe
support rail shimstock. Cu was seen by Matt. I assume there
will be more detail in the SL summary.

Suggest we add some color to PCS to highlight which segments are
active. Some lesser physops program the wrong segment on occasion.


test 01
dud
fizzle 11,17,19,21,23

plasma 02,03,04,05,06,07,08,10,12,13,
14,15,16,18,20,22,24,25,26,27,
28

disruption 05,10,18,22

Session Leader Comments
Jan 15 2008 08:57:02:313AM1080115001Greg WallaceNo power shot.
Jan 15 2008 10:44:41:610AM1080115002Greg WallacePoor coupling despite edge densities around 4e17 on the LH probes. Only difference between this shot and 1080109002 is that the grill is now 2.5mm vs 1.5mm behind the limiter, and yet the measured edge densities are nearly identical. Will repeat with nl_04=5e19.
Jan 15 2008 10:58:54:533AM1080115003Greg WallaceLH system was able to couple when nl_04 >3.8e19. Next shot will increase density a bit more so we will hopefully get a clean LH shot.
Jan 15 2008 11:21:49:470AM1080115004Greg WallaceYet again, density was too low, below 4e19. Will try increasing the density one more time.

Sudden jump/drop in many jungle gym channels at 1.2s. Not sure what to make of that although it seems to make a big difference in reflections. Maybe phasing was off?

LH camera view has shifted since 1080109. Normal bright spot is now not on the camera view.
Jan 15 2008 11:33:20:133AM1080115005Greg WallaceLH ran well until disruption. Will keep this plasma for the next few shots. Next shot will turn on ICRF and turn off LH.

Glowing in the normal place is visible on this shot, and gets brighter right before the disruption. Some afterglow is visible.
Jan 15 2008 11:48:04:457AM1080115006Greg WallaceNo LH on this shot. J did not work due to mismatch. The normal spot did glow from ~1.15-1.3s, indicating that D is the problem, as expected. Will repeat with an attempt to improve the matching on J. Need more ferrits!
Jan 15 2008 11:59:50:390AM1080115007Greg WallaceJ-port worked well at 2MW on this shot. No glowing with J or E, D still shows some glow but not as obvious as previous shot. Unfortunately the shifted camera view is cutting off the left half of the bottom rows, which is where we need to see the most.

Next shot will add in LH.
Jan 16 2008 04:41:25:893PM1080115008Greg WallaceLH but no J. Next shot will repeat.
Jan 15 2008 12:45:16:210PM1080115009Greg WallaceStill some glowing during D port. Next shot will be just D from .9 to 1.3 seconds with LH on.
Jan 15 2008 12:44:30:913PM1080115010Greg WallaceDisruption caused by injection from LH grill at 1.22s. There is some glowing on the Langmuir probes, followed by a very bright spot and a disruption. Next shot will increase outer gap to 2.0cm.

Matt reports seeing copper. Looks like this might have been the shim stock.
Jan 15 2008 12:51:51:107PM1080115011Greg WallaceFizzle.
Jan 17 2008 11:35:32:887AM1080115012Greg WallaceLH could not run with the ICRF with the bigger outer gap. No glowing on the LH launcher during LH part of pulse. nl_04=5-5.5e19.

Injection from the LH launcher at 1.4s during post LH ICRF pulse. This is 2MW from J and 1MW from E.

Next shot will add 5psi NINJA from 0.85 to 1.15s.
Jan 15 2008 01:42:30:633PM1080115013Greg WallaceBig glowing hunk of metal jumps off the LH grill at 1.15s. Unfortunately this is only visible on WIDE2 camera view. Looks like it came from the normal area, but we can't tell if it's the probe or the

Next shot will shorten LH pulse so it ends at 1.1s. Also increase outer gap to 2.5cm and ramp ICRF from 200kW to 1MW.
Jan 15 2008 01:52:10:443PM1080115014Greg WallaceNINJA puff hit around 1.0s. Will move forward 200ms for next shot.

No glowing on cameras, but LH coupling still bad with ICRF on. Will cross fingers and hope that the earlier gas puff (starting while LH is actually on) helps.

Ramped ICRF shows that minimum available power from D (200kW) is enough to trip out the LH system.
Jan 15 2008 02:14:48:190PM1080115015Greg WallaceAble to couple up to ~400kW from D with the NINJA on at 5psi. Next shot will increase to 10psi. Doesn't seem to be much glowing visible with 2.5cm outer gap.
Jan 15 2008 02:40:59:157PM1080115016Greg WallaceInjection from LH grill at .98s and 1.07s. Visible flashing and molten metal on the WIDE2 camera. Not much to see on the LH camera.

LH was able to couple, with exception of one trip caused by explosion from the launcher, through to the end of it's programmed pulse. Keep the conditions the same.
Jan 15 2008 02:39:15:873PM1080115017Greg WallaceFizzle.
Jan 15 2008 02:59:07:113PM1080115018Greg WallaceMore injections from the LH grill. No disruption but some sparks coming off still.

Disrupted at 1.6s but not due to anything from LH.

LH reflection coeff is modulated with the sparks seen. Next shot will turn off LH but keep ICRF the same.
Jan 15 2008 02:56:38:923PM1080115019Greg WallaceFizzle.
Jan 15 2008 03:14:28:757PM1080115020Greg WallaceAll quiet on the western front.

No arcing, sparking, or anything else besides the NINJA glow. Next shot will turn off ICRF and turn on LHRF.
Jan 15 2008 03:24:08:300PM1080115021Greg WallaceFizzle.
Jan 15 2008 03:48:00:250PM1080115022Greg WallaceAnother disruption, might have been caused by LH sparking but not clear on this shot. This shot had no ICRF but still problems with the launcher glowing and arcing. Next shot will turn off both LH and ICRF.
Jan 15 2008 03:50:02:157PM1080115023Greg WallaceFizzle.
Jan 15 2008 04:15:14:640PM1080115024Greg WallaceEverything ran smoothly on this one.

Next shot will turn off NINJA, turn on LH from .7 to 1.1, and turn on D from .9 to 1.3s.
Jan 15 2008 04:23:04:273PM1080115025Greg WallaceNext shot will turn on J at 2MW and turn off E. Also extend LH pulse to 1.3s.

No glowing or sparking on the LH launcher from E+LH.
Jan 15 2008 04:38:44:760PM1080115026Greg WallaceLH seems happy with J port. Good strong signs of current drive despite higher density. Next shot will change timing of the LH and ICRF systems.

J at 2MW from .6 to 1.4s.

LH at 400kW from .8 to 1.2s.
Jan 15 2008 04:53:17:620PM1080115027Greg WallaceLH and ICRF ran well other than disruption. Didn't seem to be coming from the LH grill. Next shot will stay the same but decrease outer gap to 1.5cm.
Jan 15 2008 05:12:55:050PM1080115028Greg WallaceHigh reflections tripped out LH. Maybe reducing the outer gap hurt things??? Density was a bit lower than previous shot although edge density was higher.

Last shot of the day.

Physics Operator Comments
Jan 15 2008 10:06:11:440AM1080115001Jim IrbyLoaded shot 1080109002
loaded

prepuff from 35 to 20 ms (no cryopump)
loaded

nl_04 5e19/m^2 for first 1 s then negative
Ip 750 kA

We will start with a no power shot to test data system

Well, data system problems plus the alternator air switch has a leak.
People enter power room. Tom looks at data system.

09:30 Air switch is now okay. Cycled several times. Air pressure holding steady. Visual inspection okay.

09:58 Data system may be okay. Try no power shot:

data system seems okay --- airswitch okay

Jan 15 2008 10:35:43:320AM1080115002Jim IrbyTry for plasma

Another few minutes to check lh data systems

in init at 10:26 -----

plasma into rampdown (at last)

not much lh power

Bill C enters power room to check noise of TF convertor..
Jan 15 2008 10:59:27:813AM1080115003Jim Irbynl_04 request to 8e19/m^2 before 0.5 s then 5e19/m^2 for the rest of the shot
loaded

plasma into rampdown --- early runaways --- density still too low
Jan 15 2008 11:16:25:317AM1080115004Jim Irbyearly nl_04 request to 1e20/m^2
added a little more pg3 puff around 50 ms
loaded

plasma into rampdown ---- PO error --- programming seg 2 when we were running seg 3.


Jan 15 2008 11:33:15:697AM1080115005Jim IrbyAmanda reports data system errors --- Josh and Tom checking

now programming seg3 instead of seg2.

prepuff from 20 to 21 ms (starting at 0.4 s)
nl04 request to 6e19/m^2 early then down to 5e19/m^2 by 0.70 s
loaded

plasma for 1.24 s --- density okay --- lh coupling okay

early runaways gone

radiation coming up before disruption
Jan 15 2008 11:45:09:377AM1080115006Jim Irbyno dpcs changes
no lh
icrf on

plasma into rampdown

ece data still an issue --- someone turned off ece tree
Jan 15 2008 11:58:18:467AM1080115007Jim Irbyno dpcs changes --- just icrf matching changes

plasma into rampdown --- some early hards


Jan 15 2008 12:18:32:883PM1080115008Jim Irbyprefill from 21 to 22 ms
loaded

plasma into rampdown ---still have early runaways


Jan 15 2008 12:37:42:483PM1080115009Jim Irbyprefill from 22 to 23 ms
loaded
repeat of 08 otherwise --- try for j-port

plasma into rampdown --- hards much lower

prefill pressure very high, but it's working


Jan 15 2008 12:51:01:780PM1080115010Jim Irbydpcs repeat

disruption


Jan 15 2008 01:02:51:917PM1080115011Jim Irby

fizzle
Jan 15 2008 01:20:54:297PM1080115012Jim Irbyclearin from .0025 to .0030 m
rcur from 0.65725 to 0.65400 m

plasma into rampdown --- outer gap 2.2 rather than 2.0 as requested, but okay with SL.







Jan 15 2008 01:40:47:790PM1080115013Jim Irbyno dpcs changes

plasma into rampdown --- piece of lh grill ejected toward lower divertor


Jan 15 2008 02:06:54:790PM1080115014Jim Irbyclearin from .003 to .0033 m
rcur from 0.6540 to 0.6625 m

plasma into rampdown --- got requested .0025 m outer gap

Jan 15 2008 02:09:44:150PM1080115015Jim Irbyno dpcs changes

plasma into rampdown --- grill aglow


Jan 15 2008 02:27:27:610PM1080115016Jim Irbyno dpcs changes

more ninja

plasma into rampdown --- ninja brining up line density

lost another chunk of the lh shimstock or stainless bar (see wide2)
Jan 15 2008 02:44:21:973PM1080115017Jim Irbydpcs repeat

fizzle??

large levels of mass 44 and 49 following shot 16



Jan 15 2008 02:54:07:407PM1080115018Jim Irbyno changes

plasma for 1.627 s


Jan 15 2008 03:08:11:907PM1080115019Jim Irbyno changes

fizzle --- from last disruption I assume

large mass 49,44,28,32,14 following disruption on shot 18

Jan 15 2008 03:25:25:440PM1080115020Jim Irbyno dpcs changes

plasma into rampdown


Jan 15 2008 03:29:12:040PM1080115021Jim Irbyno dpcs changes

fizzle --- pressure was up 10% relative to shot 20?



Jan 15 2008 03:45:53:747PM1080115022Jim Irbyprefill from 23 to 21 ms

plasma but disruption at 1.06 s

good startup --- pressure lower


Jan 15 2008 03:57:42:277PM1080115023Jim Irbyprefill from 21 to 20 ms

fizzle --- standard carbon burst

impurity levels on rga staying high (since shot 16)
Jan 15 2008 04:14:40:233PM1080115024Jim Irbyno dpcs changes
gatevalve toggle disabled

plasma --- rampdown to 400 kA



Jan 15 2008 04:29:41:780PM1080115025Jim Irbyprefill from 20 to 21 ms

plasma into rampdown --- large MARFE early??


Jan 15 2008 04:39:47:980PM1080115026Jim Irbyrepeat dpcs

plasma into rampdown --- no MARFE this time





Jan 15 2008 04:59:30:770PM1080115027Jim Irbydropped seg1 pg3 puff
dropped early nl_04 density request --- trying to lower density
loaded


plasma for 1.2 s --- lower target density but rises with rf


Jan 15 2008 05:32:49:323PM1080115028Jim Irbyrcur from 0.6525 to 0.6575 m

plasma --- got gap change to .015 m


Engineering Operator Comments
ShotTimeTypeStatusComment
108:57:12:517AMTestOk
210:26:51:620AMPlasmaOk
310:48:59:427AMPlasmaOk
411:01:48:490AMPlasmaOk
511:23:05:410AMPlasmaOk
611:36:04:830AMPlasmaOk
711:51:48:087AMPlasmaOk
812:08:37:310PMPlasmaOk
912:22:08:607PMPlasmaOk
1012:34:50:430PMPlasmaOk
1112:49:49:137PMPlasmaOk
1201:04:08:230PMPlasmaOk
1301:27:58:493PMPlasmaOk
1401:43:39:260PMPlasmaOk
1502:02:59:220PMPlasmaOk
1602:15:44:203PMPlasmaOk
1702:28:29:330PMPlasmaOk
1802:41:54:843PMPlasmaOk
1902:54:44:720PMPlasmaOk
2003:09:41:673PMPlasmaOk
2103:22:16:330PMPlasmaOk
2203:35:12:983PMPlasmaOk
2303:48:23:670PMPlasmaOk
2404:00:59:217PMPlasmaOk
2504:15:46:500PMPlasmaOk
2604:29:57:343PMPlasmaOk
2704:42:20:687PMPlasmaOk
2804:59:50:987PMPlasmaOk

System Availability
Jan 15 2008 08:56:50:843AM
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