Alcator C-Mod Run 1100804 Information

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Miniproposals
Miniproposal:355
Date Filed:11/12/2003
Title:ICRF Testing & Conditioning
First Author:Steve Wukitch
Session Leader:Yijun Lin (shots 1-16)
Miniproposal:614
Date Filed: 7/23/2010
Title:Pedestal modifications with lower hybrid in EDA H-mode
First Author:Jerry Hughes
Session Leader:Jerry Hughes (shots 17-32)

Operators
Session leader(s):Yijun Lin,Jerry Hughes
Physics operator(s):Jim Irby
Engineering operator(s):Andy Pfeiffer,Bill Parkin,Ed Fitzgerald

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

Session Leader Plans
Entered: Aug 3 2010 12:58:57:300PM
Author: Yijun Lin
1st half of the run:

Post-boronization (1st in this campaign) recovery, and check out LH+ICRF combination

Start from 1100730034, 5.4 T, 800 kA, nl=0.9e20 m^-2.

Ramp up RF power, and condition the antennas.
Need to watch neutral pressure, H/D, divertor heating and limiter (GH and K) heating, antenna voltage handling in H-modes (EDA).

After the machine condition is good for low density plasma, run low density plasmas, and check out whether LH can be run together with ICRF antenna(s).
Entered: Aug 4 2010 06:05:45:340AM
Author: Jerry Hughes
RUN PLAN for 1100804(PM)

This plan for 2nd half of run assumes reasonable progress is made in the AM on
(a) obtaining steady H-modes with ICRF, post-boronization
(b) operating ICRF and LHRF simultaneously

Requested systems: ICRF, LH, cryopump, Ar puff for Hirex, standard error field
correction, DNB if available
Requested diagnostics: TS, ECE, TCI, HXR camera, div probes, bolos, Ly-a, PCI,
reflectometry, Edge CXRS,
Special request for LH group: spectrum analyzer connected to probe on LH grill

Starting shot:

Load from 1080306013. 5.4T, 600kA, target nl04=6x1019m-2. Pumped. This
shot is near DN with a ZCUR ramp programmed in around 0.7--0.8s, in order to
shift from LSN to USN. Apply Prf=1.7MW from 0.6--1.5. Leave LH off to begin.

Shot plan:

The following shot plan is intended for a full day's run with good operational
conditions. Getting through the 3rd or 4th step in this session will be
considered a great success.

-Step 1. Run the above shot and evaluate quality of the resulting H-mode. Adjust
target density, input power if necessary to obtain a steady EDA condition.
If feasible, change timing so that ICRF is on from 0.5s to 1.5s and the SSEP
sweep completes at 0.75s.

-Step 2. Apply LH power at 110° phasing (n||~2.3) into the H-mode from 0.9 to
1.4s. Try a power level of 700kW, and lower power if necessary until a steady
LH trace can be achieved. Evaluate effects on discharge; compare with
1080306013.

-Step 3. Lower hybrid power scan. Take the result of Step 2, and run with PLH at
½ and ¼ of its baseline value, keeping other parameters fixed. For the half
power case, operate the LH grill with only the central sets of columns, so that
the in the next step, the counter-current and heating phasing can be tried at
the same power level.

-Step 4. Phasing scan. If a clear pedestal modification is observed at half power
in Step 3, then rerun shot at that power level with (a) counter-Ip phasing and
(b) heating phasing for comparison.

-Step 5. ICRF power scan. Take the case established in Step 2. At 1.1s, step
ICRF power up by 0.5MW, and at 1.25s, step up again by 0.5MW (or to max
available). Then, run a case in which ICRF is stepped down by 0.5MW at 1.1s,
and then again at 1.25s. Then, to establish a control, rerun these shots with
Plh=0.

-Step 6. Density/accessibility scan at 600kA. Take the base case from Step 2 and
begin increasing target density in an attempt to promote inaccessibility of LH
waves. Try nl04 of 0.8, 1.0x1020m-2. If resultant H-modes remain accessible to
LH, reduce phase angle to 90°, and then possibly to 80°.

-Step 7. Density/accessibility scan at 800kA. Raise Ip to 800kA and keep ICRF and
LH programs roughly as in Step 6. Run successive shots with nl04 of 0.8 and
1.0x1020m-2. If pedestal modification is not observed, attempt to increase phase
angle to 120°, and possibly to 130°

-Step 8. Higher currents. If promising results are seen in Step 7 at low n||,
then raise Ip to 1MA, and then 1.2MA, keeping ICRF and LH programs roughly as
in Step 7. Use nl04 of 1.0x1020m-2. It may be difficult to obtain a steady EDA
H-mode target for the LH pulse at these higher currents. If this is the case,
then attempt to enter this condition by beginning with a successful case from
Step 6 or 7 and ramping Ip up after LH turn-on.




Physics Operators Plans
Entered: Aug 3 2010 04:59:45:863PM
Author: Jim Irby
-----------------
Engineering Setup
-----------------

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

First half of run will be boronization recovery and tests of compatibility of ICRF and LH

Power systems as on: 1100730034


Second half of run devoted to EDA h-modes with LH

Power systems as on: 1080306013

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 gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus
Leave z-bolo shutter as is (should be open)

Torvac gatevalve toggle (yes/no): no

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

Vessel temperature: 35/35/35

------------------------------
ECDC Parameters (for Boronization)
------------------------------
dP: approx 120 psi

Approx gauge and piezo levels from last boronization
with 10% diborane bottle:

TC6:80.1 mTorr
TC9:66.6 mTorr
TC3:4.6 mTorr
piezo: 42 %

rmin/rdwell/rmax: 44/52/103 cm
tdwell/tsweep: 60/120 s

EF4 current: 0 A

Post boronization ECDC
----------------------------
1st Gas Setup:
Gas: Helium-4
sweep: 44/45/103 cm
scan: 20/120 s
Pressure: 6.0e-5 Torr
Duration:2 Hrs.

2nd Gas Setup
Gas: D2
sweep: 44/45/103 cm
scan: 20/120 s
Pressure: 2.0e-4 Torr
Duration:1 Hr.

Session Leader Summaries
Entered: Aug 5 2010 09:06:16:813AM
Author: Jerry Hughes
Summary for the afternoon session:

This was a productive half-run, which will be continued at 9:00 tomorrow.

We accomplished the following:
1. Established EDA H-mode target for LH injection that was utilized on
1080306. (600kA, USN pumped, <2MW ICRF)
2. Injected LHRF into the target at power levels up to 600kW.
3. Reproduced density pump-out in the H-mode with LH on (as on 1080306013).
4. Performed a LH power scan to determine dependence of the pump-out on P_LH.

Our initial results show that we can obtain the pedestal modification with lower
n_|| than had been previously employed (~1.9 rather than 2.3), which strongly
suggests that wave accessibility to the core is non-essential to initiate
the modification. Also, we established that the density pump-out rate is depends
on P_LH, and seems to have a threshold power of somewhere between 120 and 200kW.

The significant results today were obtained with 90deg phasing on the LH.
Attempts to couple in this condition at 70deg and 110deg were less successful.




Physics Operator Summaries
Entered: Aug 5 2010 08:15:45:107AM
Author: Jim Irby
Machine ran well today. We had a fizzle on shot 12 that may have been
the result of a bounce. Earl suggested that we increase EF4 from -1280
to -1270 A. That seems to have fixed the problem.

We spent the first half of the run day getting the machine running
following boronization, and conditioning the ICRF antennas. After a
couple of disruptions we had full length plasma for this part of the run from shot 03 on.

On shot 17 we switched to the EDA h-mode run with ICRF, LH, and
cryopumping. Some tweaks were required to ZCUR and ZXU to make the
plasma more like the discharges from 2008. These were near double null
plasmas. We had difficulty getting into rampdown (beyond 1.5 s) after
the ZXU tweaks were made. Steve Wolfe noted that ZXU was being swept
out strongly positive at about 1.38 s. When we just kept ZXU flat, we
were able to extend the discharge well into rampdown (shot 30).

Session Leader Comments
Aug 4 2010 09:10:02:113AM1100804001Yijun LinMax faults on all antennas.
It looked like neutral pressure was too high, but ratio-matic was broken.

Next: repeat.
Aug 4 2010 09:26:04:567AM1100804002Yijun LinMax faults on all antennas.
Ran better. Go a short H-mode.

Next: Lower power level and let some power go through the antennas.
Aug 4 2010 10:00:21:040AM1100804003Yijun LinD/E reasonable.
J max faults
Long H-mode, H/(H+D) ~ 5%

Next: Raise D/E power, and lower J power to let it run.
Aug 4 2010 09:57:38:707AM1100804004Yijun LinD/E reasonable. to > 1 MW.
J struggling (even at 0.6 MW)
Long H-mode

Next: Start D/E later than J. and hope J can run by itself.
Aug 4 2010 10:11:48:073AM1100804005Yijun LinD/E reasonable. to > 1 MW.
J ran by itself in L-mode, but struggling with D/E and H-mode.
Long H-mode

Next: Start D/E later. Raise J power.
Aug 4 2010 10:44:04:593AM1100804007Yijun LinD/E reasonable. to > 1 MW.
J ran by itself in L-mode, but struggling at 1 MW level.
Long H-mode

Next: repeat.
Aug 4 2010 11:11:00:100AM1100804009Yijun LinD/E reasonable. to > 1 MW.
J ran by itself in L-mode, but struggling at 1 MW level.
Long H-mode

Next: Overlap LH with J up to 1.0 sec. Only run J, and make it run at low power for a longer pulse.
Aug 4 2010 11:28:23:790AM1100804010Yijun LinJ ran by itself in L-mode, but struggling
LH many tripps during J-antenna.

Next: repeat with E+LH, and Move J later.
Aug 4 2010 11:47:08:630AM1100804011Yijun LinJ ran by itself in L-mode, but struggling
E was tripping, also LH many trips during E-antenna.

(E and LH were fighting each other. LH caused E to trip, and E caused LH to trip.).
Next: reload shot 10. Run J and LH.
Aug 4 2010 11:58:09:677AM1100804012Yijun Linfizzle
Aug 4 2010 12:12:10:697PM1100804013Yijun LinJ ran.
J and LH together. OK.

Next: repeat. raise J power.
Aug 4 2010 12:25:15:510PM1100804014Yijun LinJ ran.
J and LH together. OK.

Next: repeat.
Aug 4 2010 12:40:30:120PM1100804015Yijun LinJ ran. many faults
J and LH together. OK.

Next: E 1.1 MW, J 0.6 MW. 0.7-1.5 sec. LH in the middle of ICRF.
(a test case for the 2nd half of run).
Aug 4 2010 12:58:17:163PM1100804016Yijun LinJ ran. J and LH together. OK.
E ran, many faults when LH was on (how?)
(There were more arcing events seen by E antenna during LH).

Next: sign-out as session leader.
Aug 4 2010 01:22:48:370PM1100804017Jerry HughesPushing forward to try to make progress on MP614.

First shot. Try to reproduce something like th target conditions in 1080306013.
Start with LH turned off.

Result. Nice cruopumped plasma at 600kA. Not enough RF to sustain an H-mode,
although it looks like some dithering is occuring early.
SSEP sweep occurs as desired and density control looks good after it goes USN.

Next: Retry.

Aug 4 2010 01:43:08:847PM1100804018Jerry HughesShot 18.

Retry of 17. Peak ICRF is getting closer to the demand of 1.7MW, late in the shot
at least. H-modes are fairly radiative. Matt informs us that the Ar puff is
100ms in this load. Oops.

Next: Retry with improved ICRF, Ar turned off.

Aug 4 2010 01:55:04:190PM1100804019Jerry HughesShot 19.

Better. 2 longer EDA H-modes. Prf~1.7MW peak, with faults.
The upper x-point is ~2.4cm lower than on 1080306. This has the consequence
of putting the strike point on the cryopumping slots, which is not recommended.

Next: repeat with ZXU increased.
Aug 4 2010 02:15:30:800PM1100804020Jerry HughesShot 20.

Result: A very nice EDA H-mode with 1.7MW peak RF.

In raising the X-point, we prevented the full transition to USN, i.e. SSEP didn't
go through zero.

Next: PO will make a shift to the ZCUR program, try to go through DN.
LH will try from 1.0s to 1.4s at the 600kW level.

Aug 4 2010 02:24:06:127PM1100804021Jerry HughesShot 21.

Best RF yet. Good low density EDA target.
LH is wearing a :(

As on last shot, we are disrupting at the beginning of rampdown.
The change in ZCUR did not take effect after 1s. PO will fix for next shot.


Aug 4 2010 02:48:25:147PM1100804022Jerry HughesShot 22.

Equilibrium looks fairly good now. RF pulse is of excellent quality. Still
have a good target EDA plasma for long period.
LH still trips out at <300kW. Greg pins it on column 7, and Yijun suggests
reducing power demand on E and putting a bit more into J-port.

During the LH ramp from 150 to ~230kW, an increase in the ECE signal and an
increase in the H-alpha observed. Same phenomenon on shot 21.

Dan reports the ramped tiles are getting hot. We will need to try to alleviate
that on future shots by going more USN.

Next shot: Try Yijun's power redistribution plan.


Aug 4 2010 03:14:09:533PM1100804023Jerry HughesShot 23.

Still disrupting at around 1.5s.

The redistribution of RF power did not cure the LH. However, it does get to
nearly 400kW. The ECE and H-alpha respond, and it looks like the Isat on UDIV07
increases during the pulse.

Greg is checking things out with a dummy load shot. He doesn't trust the phasing
on klystron 4.

Next: Jim will increase ZCUR to get heat flux off the lower divertor.


Aug 4 2010 03:15:47:110PM1100804024Jerry HughesShot 24.

Similar to previous shot. Phenomenology during LH rise is the same.

Next: Amanda and Greg have the idea of trying lower n||.
Aug 4 2010 03:31:50:207PM1100804025Jerry HughesShot 25.

Same as before, but LH will step up in phase during the shot: 70, 90, then
110 deg.

This is promising. The 90 deg phase runs well, and appears to give good density
pump-out. nebar rises after LH turn off

There is an issue with edge TS. Trying to evauate it.
Oh, It's a timebase shift in the L8212. It may be correctable.
Aug 4 2010 03:46:32:773PM1100804026Jerry HughesShot 26.

Shot ran well. Clear beginnings of density pump-out at LH turn on.
Effect killed by an injection, and radiated power rise at 1.06s.
Max P_LH=500kW

Edge TS timebase issue appears to be fixed now.


Dec 1 2010 11:18:37:843AM1100804027Jerry Hughes
Shot 27.

This is the key shot of this run, even though I somehow neglected to make an
entry about it on the day of the run.

PLH=600kW. Clear desnity pump-out in H-mode.


Aug 4 2010 04:06:58:837PM1100804028Jerry Hughes
Are those ELMs at 1.01--1.03s???
Aug 4 2010 04:18:04:007PM1100804028Jerry Hughes
Same EDA target as before.
LH power is 200kW with a step up to 400kW after 250ms.
The dn/dt appears to be smaller at the lower power.
The saturation density matches the case at P_LH=600kW


Aug 4 2010 04:44:30:710PM1100804029Jerry HughesShot 29.

P_LH at 320kW. Good pump-out. Faster dn/dt than at 200kW.


Aug 4 2010 04:45:53:763PM1100804030Jerry HughesP_LH at 130kW. Unfortunately the H-mode was lost before the LH ever turned on.

Next: retry.
Aug 4 2010 05:03:03:150PM1100804031Jerry HughesThe H-mode stays around a bit longer that time.
P_LH at ~120kW for 200ms. It looks like if there is density pump-out, it's small.
The Prad is a little high, but not to a level that would mitigate the pedestal
pump-out at higher P_LH.

So, it looks like the threshold for the pedestal mod is between 120 and 200kW
at this plasma condition and this LH phasing.

Next: Run a shot with no LH power.


Aug 4 2010 05:06:45:600PM1100804031Jerry Hughes
An attempt at a control with 0 LH power. This back-transitioned early again.
We may have to turn off Ar tomorrow altogether.


Physics Operator Comments
Aug 4 2010 09:18:46:510AM1100804001Jim IrbyLoad from 1100730034
open tree done

prepuff at 19 ms
ef4 -1280 A
nl04 0.8e20/m^2
Bt 5.4 T
Ip 800 kA
running seg 1 and seg 2

nl04 from 0.8 to 0.9e20 /m^2
loaded

import seg 2 from 1080306013 into seg 3

Followed Steve's Magnetics Predictor recalculation directions:

1) go into the Edit Wire screens for each of the magnetics predictors (BR_0,BZ_0,RCUR,ZCUR,RXL,ZXL,RXU,ZXU,SSEP,STRKPSI) that appear in any loaded or imported segment, noting any values in the OFFSET column
2) hit the CALL button for all rows that have an algorithm name other than CLEAR or CUSTOM
3) Replace any non-zero entries in the OFFSET column which get reset to zero by the CALL.
4) APPLY (or OK) the screen,
5) OK the Factor screen when it pops up, and also any P_INFO warnings that appear.

Recals required for: RCUR, ZCUR, ZCUR, RXL, ZXL, RXU,ZXU, ssep, ssep

This procedure was done in seg 3 only since the other segments are from a recent shot.

Open tree done

seg1 and seg2 enabled for first part of run
no cryopump

***********************************************
plasma for 1.349 s

CIII light nearly gone < 7e-4 V
density rise 50% higher than on the startup shot from last week
current rise very similar

0.4 MW of LH
no ICRF





Aug 4 2010 09:34:07:177AM1100804002Jim Irbychanges --------------------------------

data system hang --- Josh is checking 09:18

no dpcs changes


results --------------------------------

bp at 1.7e-6 Torr

plasma for 1.477 s
vertical instability
h-mode --- a little icrf

Aug 4 2010 09:43:00:793AM1100804003Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown --- h-mode

upto to 1.5 MW of ICRF
360 kW of LH --- ref coef 25%
h/(h+d) abt 5%







Aug 4 2010 10:01:49:170AM1100804004Jim Irbychanges --------------------------------

Cell access for Z-bol, DNB, Polar, etc....

Tommy opened Z-Bolo (closed for boronization and first 3 shots)

Enabled argon puff --- 75 ms

no dpcs changes

results --------------------------------

plama into rampdown --- ICRF a little better


Aug 4 2010 10:17:43:590AM1100804005Jim Irbychanges --------------------------------

argon enabled --- puff from 75 to 50 ms
open tree done

results --------------------------------

plasma into rampdown


Aug 4 2010 10:28:48:710AM1100804006Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown --- a few h-modes

h/(h+d) abt 5%


Aug 4 2010 10:49:39:210AM1100804007Jim Irbychanges --------------------------------

Cell open for DNB --- DNB gatevalve enabled

prefill from 20 to 21 ms --- a little tweak because of the DNB
loaded

results --------------------------------

plasma into rampdown





Aug 4 2010 11:01:44:510AM1100804008Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown

sparker cleaned up from boronization --- only 2 faults

density and h-alpha signals still rising quickly for the first 200 ms compared to startup shot
CIII still low



Aug 4 2010 11:16:03:213AM1100804009Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown --- 2 h-modes, one from J, one from DE


Aug 4 2010 11:35:49:960AM1100804010Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into pumpdown
Aug 4 2010 11:46:10:817AM1100804011Jim Irbychanges --------------------------------

no changes

results --------------------------------

plasma into rampdown


Aug 4 2010 12:05:05:510PM1100804012Jim Irbychanges --------------------------------

Opened cell

no changes

results --------------------------------

fizzle --- fields ok, but banged something around 12 ms




Aug 4 2010 12:20:44:163PM1100804013Jim Irbychanges --------------------------------

try again --- no dpcs changes


results --------------------------------

plasma into rampdown

Aug 4 2010 12:32:18:573PM1100804014Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown

Aug 4 2010 12:49:28:353PM1100804015Jim Irbychanges --------------------------------

Earl suggested a small change in EF4:

EF4 from -1280 to -1270 A


results --------------------------------

plasma into rampdown


Aug 4 2010 12:52:05:183PM1100804016Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown

Aug 4 2010 01:26:14:823PM1100804017Jim Irbychanges --------------------------------

Switching to Jerry's run

seg2 off, seg 3 on
loaded

error message noting that clearin was using bad flux loops
did recal on clearin
loaded --- no errors


prefill from 22 to 55 ms
loaded

cryopump should be ready for shot


results --------------------------------

plasma into rampdown --- density about right




Aug 4 2010 01:29:44:920PM1100804018Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma into rampdown -- a few h-modes

argon was enabled at 100 ms from the old shot --- argon now disabled

Aug 4 2010 01:54:16:270PM1100804019Jim Irbychanges --------------------------------

fizzle detector from 1.8 to 2.1 s --- not enough double swing at low Ip

no dpcs changes, but argon disabled

results --------------------------------

plasma into rampdown --- looks better: 2 extended h-modes


Aug 4 2010 02:06:38:820PM1100804020Jim Irbychanges --------------------------------

ZXU from 0 to 0.024 m --- ramped up to .02 m by 0.4 s
loaded

results --------------------------------

Plasma for 1.56 s


Aug 4 2010 02:25:46:537PM1100804021Jim Irbychanges --------------------------------

ZCUR made more positive by 0.005 m
loaded

results --------------------------------

plasma for 1.524 s --- ZCUR was not increased as intended after 1 s




Aug 4 2010 02:42:18:770PM1100804022Jim Irbychanges --------------------------------

ZCUR raised about 0.005 m after 0.8 s
loaded

results --------------------------------

plasma for 1.52 s --- ICRF looking good


Aug 4 2010 02:59:08:893PM1100804023Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma for 1.52 s
Aug 4 2010 03:13:53:900PM1100804024Jim Irbychanges --------------------------------

ZCUR increased .01 m
CLEARIN ramped down starting at 1.5 s (was extended to 2 s)
loaded

results --------------------------------

plasma for 1.12 s --- injection??


Aug 4 2010 03:25:34:833PM1100804025Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma for 1.51 s


Aug 4 2010 03:37:28:183PM1100804026Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma for 1.55 s
Aug 4 2010 04:03:37:463PM1100804027Jim Irbychanges --------------------------------

argon enabled from 0.3 to 0.35 s
RCUR ramped down starting at 1.45 s (from flat beyond 2 s)
loaded


results --------------------------------

plasma for 1.53 s


Aug 4 2010 04:19:00:050PM1100804029Jim Irbychanges --------------------------------

no dpcs changes

results --------------------------------

plasma for 1.53 s

Aug 4 2010 04:42:45:887PM1100804030Jim Irbychanges --------------------------------

RXU was being swept strongly positive at 1.38 s??

RXU kept flat to 1.75 s
loaded

results --------------------------------

plasma into rampdown
Aug 4 2010 04:56:17:350PM1100804031Jim Irbychanges --------------------------------

argon puff to 35 ms from 50.
loaded


results --------------------------------

plasma into rampdown


Engineering Operator Comments
ShotTimeTypeStatusComment
109:02:13:357AMPlasmaOk
209:20:13:860AMPlasmaOk
309:33:14:450AMPlasmaOk
409:52:10:690AMPlasmaOk
510:04:57:987AMPlasmaOk
610:18:01:290AMPlasmaOk
710:37:00:253AMPlasmaOk
810:50:09:947AMPlasmaOk
911:03:08:560AMPlasmaOk
1011:19:06:423AMPlasmaOk
1111:36:05:953AMPlasmaOk
1211:52:05:517AMPlasmaOk
1312:05:26:953PMPlasmaOk
1412:18:28:677PMPlasmaOk
1512:32:54:490PMPlasmaOk
1612:47:18:273PMPlasmaOk
1701:07:50:767PMPlasmaOk
1801:22:52:547PMPlasmaOk
1901:40:44:133PMPlasmaOk
2001:55:29:220PMPlasmaOk
2102:13:00:243PMPlasmaOk
2202:30:14:513PMPlasmaOk
2302:44:34:630PMPlasmaOk
2403:00:15:783PMPlasmaOk
2503:14:13:547PMPlasmaOk
2603:29:28:453PMPlasmaOk
2703:45:36:963PMPlasmaOk
2804:00:25:650PMPlasmaOk
2904:17:20:373PMPlasmaOk
3004:32:02:720PMPlasmaOk
3104:47:15:037PMPlasmaOk
3205:02:03:650PMPlasmaOk

System Availability
Aug 4 2010 09:01:58:590AM
SystemAvailableCommentAvailability
Changed
OwnerDescriptionWho Can
Change
Active MHDnosecured - tagged outJun 02 2008 11:03AM (sears)Joe SnipesActive MHD Antennasears,snipes
BESnoBES system is ready for Up-to-air (Apr, 2010)Mar 31 2010 10:36AM (bespam)Bill RowanBeam Emission Spectroscopybespam,liao,rowan
Bolometersyes2pi (D+F) working. All midplane and off-midplane diode arrays working except WB1AX. Midplane foils calibrated and PRAD_MAIN is being filled. Divertor/Ledge foils not yet ready.Jul 15 2010 08:27AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
Boronizationno3/26/10 Bottle Removed From Cell, monitors powered down, Autodialer function bypassedMar 26 2010 05:29PM (dekow)Jim IrbyBoronizationdekow,irby
CNPAnoSingle channel CNPA available as of 12/1707Jun 10 2009 10:22AM (twf)Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertornoShut down. Helium dewar removed. LN2 manual valve and solenoid valves are closed and tagged.Apr 06 2010 10:51AM (labombard)Brian LaBombardUpper Divertor Cryopumpirby,labombard
CXRSnoWide-view CXRS system is power down and ready for up-to-air (Apr, 2010)Mar 31 2010 10:36AM (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; new calibrations (relative brightness and position) not yet implementedJun 29 2010 10:27AM (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
ECDCyesOperationalJun 26 2010 09:28PM (irby)Jim Irby2.45 GHz, 3 kW, discharge cleaning systemdekow,irby,pfeiffer
FRC-ECEyesAll channels working and calibrated.Jul 30 2010 08:13AM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesGauges are operational.Jun 28 2010 08:02PM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
Glow DischargenoPlugs for Power Supply and Controls have been unplugged and red tagged making system safe for In-Vessel Access.Apr 05 2010 11:18AM (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. Ch 5 preamp replaced 6/18.Jun 22 2010 03:03PM (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/Dyesoperating normallyJun 29 2010 10:26AM (marmar)Earl MarmarH/D Ratiomarmar
HEATyes Jun 26 2010 11:19PM (dekow)Gary Dekow - Machine Heaters -burke,dekow
Hirex JryesHirex-Jr has been installedJun 28 2010 03:36PM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesSystem installed and aligned. Inverted profiles are still not available.Jul 22 2010 08:41AM (ypodpaly)John RiceHigh Resolution X-Rayince,rice,ypodpaly
HXRyes Jun 28 2010 12:12PM (schmidt)Ron ParkerHard X-Ray Arrayparker,schmidt
ICRF D-Antennayessystem checked out ok on 11006728. Jun 28 2010 04:57PM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayessystem checked out ok on 1100628Jun 28 2010 04:57PM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayessystem checked out ok. conditioned to vacuum. Jun 28 2010 04:58PM (ylin)Steve WukitchJ-port antennawukitch,ylin
Laser Blow-Offyesoperational and testedJul 20 2010 04:42PM (g)Martin GreenwaldImpurity Injection Systemg,nthoward
Lower HybridyesLH was tested into dummy loads synced to shot. Shorts have been removed. Probe Cal. 6/29/10 evening.Jun 29 2010 03:51PM (dterry)Ron ParkerLower Hybriddterry,parker,wallaceg
Lower Hybrid Reflectometeryes60 GHz system to detect upshifted signalJul 28 2010 01:39PM (sgbaek)Arturo DominguezLower Hybrid Reflectometerdominguez,marmar,parker,sgbaek
LPInoBeam line removedMay 30 2008 02:09PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphayesLYMID, WB4LY and LLY working. WB1LY not attached due to pickup problems.Jul 01 2010 11:58AM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesSpectra being collected and tree filled. Wavelength scan is broken so fixed on the Mo XXXI and XXXII lines.Jul 15 2010 08:28AM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Start at reduced speed.Jun 22 2010 03:02PM (hubbard)Amanda HubbardECE Te Profileshubbard,schmidt
MKSyesGauges are operationalJun 28 2010 08:02PM (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
NeutronsyesAll systems are on and functionalJun 29 2010 12:56PM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesPMT Neuts_hards, ssd_x01, ssd_x02, ssd_x03Jun 26 2010 09:21PM (irby)Jim IrbyX-Ray/Neutron Detectors at K-Horirby
NINJAnoCapillaries tested in-vessel.Jun 28 2010 08:08PM (labombard)Brian LaBombardNINJA gas pufflabombard,terry
PCIyesOperational. AM (2 * 39.51) MHz.Jul 19 2010 05:54PM (ntsujii)Miklos PorkolabPhase Contrast Imagingarai,ennever,ntsujii,porkolab
Penning GaugesnoHigh voltage power supplies are turned off, waiting for work at A-port horizontal to be finished.Jun 28 2010 08:07PM (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 Switchyes Jun 26 2010 11:19PM (dekow)Gary Dekowfeeds all the other suppliescochran,dekow,dterry,irby
Power - PEIyes Jun 26 2010 11:19PM (dekow)Gary DekowPEI Systemcochran,dekow,dterry,irby
Power - TMXyes Jun 26 2010 11:19PM (dekow)Gary DekowEf2s,. EFCs and A-Coilsbyford,cochran,dekow,dterry,irby
Power Systemsyes Jun 26 2010 11:20PM (dekow)Jim IrbyC-Mod Magnet Suppliesbyford,cochran,dekow,dterry,irby
Probe Array - ISDyesOperational.Jun 28 2010 08:03PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesOperational.Jun 28 2010 08:03PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesF and J outer divertor probes are operational.Jun 28 2010 08:04PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyesOperational, except probe#13Jun 28 2010 08:04PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometeryesOn 1100803xxx 60-140 channels are all connected. The 50I/Q are being used by the 75GHz channel in order to track down a noise issue.Aug 03 2010 09:31AM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesOperational. New Langmuir-Mach probe head installed.Jun 28 2010 08:05PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesOperational.Jun 28 2010 08:05PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesBoth A and K units are operational. Coil polarity needs to be checked.Jun 28 2010 08:06PM (labombard)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
SparkeryesHV supply on, cable run to sparker at k-horJun 23 2010 02:41PM (irby)Jim IrbyField Emission Preionization for C-Moddekow,irby,parkin
Surface Science StationnoSSS installed and leak tested, individual probes not installedJun 28 2010 01:28PM (ochoukov)Bruce LipschultzRadially scanning probe located on K-portblip,ochoukov
TCIyesNo new CO2 detector, so still missing edge channelsJun 23 2010 02:40PM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - CoreyesOperating with 2 lasers, but density is **uncalibrated**Jul 14 2010 11:54AM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes,yma
TS - EdgeyesOperationalJul 14 2010 11:54AM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes,yma
Vispecno350 and 670 nm, 4 spatial channelsNov 28 2007 09:58AM (agraf)Alex GrafVisible Spectrometeragraf
XEUSyesOperationalJul 01 2010 11:57AM (mlreinke)Matt ReinkeX-ray Extended Ultraviolet Spectrometermlreinke
XTOMOyesCore system working. Edge system waiting for H-modes.Jul 01 2010 11:55AM (mlreinke)Bob GranetzX-Ray Tomographygranetz,mlreinke