Alcator C-Mod Run 1070711 Information

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Miniproposals
Miniproposal:492
Date Filed: 6/19/2007
Title:Lower lp Long Pulse L-mode and H-mode Advanced Scenarios
First Author:Chuck Kessel
Session Leader:Chuck Kessel (shots 1-24)

Operators
Session leader(s):Chuck Kessel
Physics operator(s):Steve Wolfe
Engineering operator(s):Andy Pfeiffer,Ed Fitzgerald

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

Session Leader Plans
Entered: Jul 10 2007 02:35:33:643PM
Author: Chuck Kessel
MP492: Kessel, Hubbard, Bonoli, Lin, Parker, Terry, Schmidt, Wallace, Wilson, Wolfe, Wukitch

Toroidal Field: 5.4 T for ICRF
Plasma Current: 0.60 MA (and 0.45 kA for 2nd day)
Working Gas Species: D, H-minority.
Density: Target 6-9e19 m-2
Cryopump: on standby to cool down in 30 minutes (He permitting)
Equilibrium configuration (if possible, refer to database equilibria): slow Ip ramp discharges 1070412 at Ip = 600 kA listed below

ICRF Power, pulse length, phasing: J-port essential, 1.0-2.0 MW. D and/or E desirable, 1 MW.
LHCD Power, pulse length, phasing: 0.5-1.0 MW, variable phase (probably 90 deg, but also 120 deg), longest pulse available.
Pellet Injection (species): no
Impurity blow-off injection: no
Diagnostic Neutral Beam: Highly desirable
Special gas puffing: NINJA (with D2) should be available.
Non-axisymmetric Coils (Connections, Current); Yes; optimized to reduce locked modes.

Start with established discharge with slower Ip ramp: 1070412022 for 1000 ms rampup and early divert, at Ip = 600 kA. Adjust this discharge to get 500 ms rampup.

0) establish older discharge with flux loop correction

1) tune plasma position for ICRF and LH coupling at early times (200 ms) to allow effective heating (2 shots) (reference discharge has too large an outer gap at early times, and possibly also later times)

2) 500 ms rampup to 600 kA (4 shots)
a. ICRF only, 1.0 MW at 500 ms
b. ICRF only, 1.0 MW at 200 ms
c. ICRF only, 2.0 MW at 500 ms
d. ICRF only, 2.0 MW at 200 ms

3) 1000 ms rampup to 600 kA (4 shots)
a. same as above but with 500 and 200 ms on times for ICRF

4) 500 ms rampup to 600 kA (2 shots) (LH: 90 deg phasing, possibility for 120 deg)
a. LH only, (maximum available) 0.5 MW at 500 ms
b. LH only, (maximum available) 0.5 MW at 200 ms

5) 1000 ms rampup to 600 kA (2 shots) (LH: 90 deg phasing, possibility for 120 deg)
a. same as above but with 500 and 200 ms on times for LH

6) 500 ms rampup to 600 kA (2 shots) (LH: 90 deg phasing, possibility for 120 deg)
a. ICRF 1.0-2.0 MW at 200 ms, LH 0.5-1.0 MW at 400 ms
b. ICRF 1.0-2.0 MW at 400 ms, LH 0.5-1.0 MW at 600 ms

7) 1000 ms rampup to 600 kA (2 shots) (LH: 90 deg phasing, possibility for 120 deg)
a. ICRF 1.0-2.0 MW at 200 ms, LH 0.5-1.0 MW at 400 ms
b. ICRF 1.0-2.0 MW at 400 ms, LH 0.5-1.0 MW at 600 ms

Start with established discharges with slower Ip ramps generated on previous day, to produce Ip = 450 kA. 1070412022 (or equivalent) can be used for the 500 ms rampup, by truncating the rampup. The 1000 ms ramp will have to be developed.

Repeat sequence above.

Physics Operators Plans
Entered: Jul 10 2007 04:30:33:387PM
Author: Steve Wolfe
Physop Plan and Engineering setup for Wednesday, July 11, 2007

MP#492: Lower Ip Advanced Scenarios
SL: Kessel, Hubbard
PO: wolfe

No overnight boronization!
Overnight ECDC in D2 at 2e-4, 
sweep rmin/rdwell/rmax=44/45/103
tdwell/period = 20/60sec
60C bake

Engineering setup:
-------------------

Power systems as on 1070412022 (Note non-standard crowbar times)
A-coil configuration standard (+Dtop -Dbot -Jtop +Jbot) enabled
  start time 0.2sec

Gas setup: 
   fill B-Top            with  6 psi D2  Hybrid enabled  (PG4)
   fill B-side lower     with  1 psi Ar  Hybrid Enabled (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  Enabled 
Enable the following gate valves and shutters, assuming no vacuum problems:
  ECE, VUV, DNB, Z-bolo shutters

Torvac setup: Gate valves open

ICRF: In RUN-ON by 08:00 (#1,2, and 4)
LH: Ready for use later in run 

Physop Plan:
-------------

Step 0:
--------
The first trick will be to recover the startup from 1070412022, which
dates from before the f10 loop died. This is a special startup with 
early current control and tweaks to supply voltages, so we can't just
start from a recent segment 1. The major changes will be: 
RCUR offset from 1500 to 1000 -- This is most likely to cause issues
BR0 to -.003 
IC_EF4U leave at -1325, since Bz looks a little negative today

Obviously, need to recalculate all the magnetics predictors in both 
segments 1 and 2. 

Following the SL plan, change the Ip program in seg2 to flattop at
600kA at 0.5sec. May want to move early RXL program from -.01 to -.03
or increase the early gain to get the xpoint off the inner nose. If there
are significant problems with this, consider reverting to 1070412015. 
Note that pg2 (argon) puff was at 35ms; leave it like that until
somebody complains, one way or the other. 

Step 1: Still with 600kA at 500ms, try optimizing ICRF target (outer 
  gap) for early times. 

Step 2: Keep PCS program the same while ICRF timing and power are varied

Step 3: Delay start of flattop to 1.0sec (like on shot 22) and repeat 
 ICRF variations. 

Step 4: Back to 500ms start of flattop, possibly retune target for 
  LH

Step 5: back to 1.0sec SOF, more LH

Step 6: Back to 500ms SOF, both ICRF and LH (* if possible, else go to 8)

Step 7: Back to 1.0sec SOF, repeat ICRF + LH (* if possible)

Step 8: If time remains, or we have to skip 6 and 7, begin 450kA experiments.
 First case would be 450kA at 0.5sec, which should look like just an earlier 
 flattop on step 3. 







Session Leader Summaries
Entered: Jul 12 2007 07:20:44:030AM
Author: Chuck Kessel
MP492 Slow Ip Rampup with ICRF and LH heating/CD

Discharge 1070412022 (1000 ms ramp to 600 kA) provided the reference for these experiments, and was used to generate the 500 ms rampup case. The plasma current was at 600 kA and Bt was at 5.4 T all day. ICRF heating included 1MW from J-port, 1 MW from D-port and 1 MW from E-port. LH (90 deg phasing co-CD) power reached 500 kW, with 400 kW more reliable in terms of avoiding trips. The goal of the experiments was to establish discharges with slower Ip ramps and varying timing and power levels of heating from both ICRF and LH. The 500 ms rampup case was setup quickly with an ohmic reference shot (003). Work was needed on the plasma position relative to the antenna and although the ICRF was working OK, smaller outer gaps with better contouring to the LH antenna were ongoing over several shots for the LH. The LH pulses were stretched out to about 900 ms. In addition, efforts to remove the lull (after 40 ms) in the Ip ramp after the first preprogrammed segment were attempted. A sequence was completed,

500 ms rampup to 600 kA
a) 1.0 MW ICRF at 500 ms (005)
b) 1.0 MW ICRF at 300 ms (actual on at 400 ms choppy and 500 ms clean) (006)
c) 1.0 MW ICRF at 200 ms (008)
d) 2.0 MW ICRF at 200 ms (010)
e) 2.0 MW ICRF at 200 ms, 3.0 MW at 400 ms (got NSTAR thing going on) (011)
f) 0.4 MW LH at 200 ms (012,013,015)
g) higher power LH at 200 ms (backed off to 0.4 MW after these shots) (016,017)
h) 1.0 MW ICRF and 0.4 MW LH at 200 ms (018)
i) 1.0 MW ICRF and 0.4 MW LH at 200 ms, and 2.0 MW ICRF at 400 ms (019)
j) 2.0 MW ICRF and 0.4 MW LH at 200 ms (020)

1000 ms rampup to 600 kA
a) 2.0 MW ICRF at 200 ms
b) 2.0 MW ICRF and 0.4 MW LH at 200 ms

During the discharge the plasma was entering H-mode but not sustaining it (probably due to low density according to Hubbard and Hughes) even with only 1 MW of ICRF. Unfortunately the longest H-mode appeared in a discharge that disrupted (022). Each additional power notch (from ICRF and/or LH) caused a corresponding drop in the surface voltage and li. The sawtooth onset was being delayed significantly (compared to the normal onset at say 140 ms). Electron temperatures were reaching 3-3.5 keV under 2 MW of ICRF and LH and 2.5-3 under 2 MW of ICRF. A particular case with a long enough LH dropout showed that Te clearly dropped in its absence and recovered when the LH recovered. A cursory look at li indicated that the LH may have had a strong impact on li even at only 0.4 MW. We were successful on getting the ICRF and LH into the plasma simultaneously, the ICRF and LH pulses were long and pretty clean. There were some long delays associated with TF cooling, however we got 24 discharges and accomplished a lot of what we were after. Probably the only downside was that H-modes were not sustained since we would like to the higher edge Te and get the ICRF+LH working under these conditions.

Physics Operator Summaries
Entered: Jul 11 2007 06:50:59:780PM
Author: Steve Wolfe
Physics Operator Summary for Wed. July 11, 2007
MP#492: Slow ramp AT scenarios
SL: Kessel
PO: wolfe
EO: Pfeiffer, Fitzgerald

A mixed day, with some progress on the MP. We also had some
delays and some problems with injections and disruptions, and 
one (#11) possible NSTAR related issue with EFC, 3 MW ICRF and LH (into
dummy load). We didn't try 3MW again.

Toward the end of the day we had a few OH2 coax warnings, probably
because the shots were not double swinging the OH's. For Shot#22 we 
implemented the late TF/OH inversion times and delayed fizzle settings,
although due to disruptions on the succeeding shots these were not
required. I recommend that tomorrow's run use these power supply
timings, from shot 1070711022, rather than those from the earlier
shots today, in order to avoid the coax warnings. 

The first two shots were short and seemed to suffer from 
vertical instability before 200ms. There had been a burst
of such on the original shot 1070412022. Small adjustments
to clearin reducing the early elongation seemed to improve
this to the point that shot#3 survived to full length. This
more or less completed step 0. Despite the reduced CLEARIN,
this shot and all the rest today were diverting nice and early,
between 0.16 and 0.18sec. 

Unfortunately, after shot 3 the HEAT breaker tripped out due 
to a bad thermocouple on the vessel and we ended up losing 
two hours. First there was a long delay to reset the breaker,
fix the TC, and let the vessel come back up to temperature; 
it got as low as -12C or so.  Then the TF resistance value
would not come back down to its usual value required for the
cryo permissive. There was suspicion that the resistance temp
reading was invalid, although the values with the 5A supply
and the first-last turn with the PEI at 600A and at 3000A all
indicated higher than normal values. PEI values were around -149C
and the 5A supply gave -139C. Shot #4 was a no-power shot with
TF scanner, and it also indicated a first-last turn resistance
slightly higher than following the full magnet shot #3; this after
almost an hour of cooling. All the magnet arm tc's were reading
cold, <-170C by this time. We proceeded with a shot, with the
resistance reading around -153C at INIT. Subsequent exploration
indicated that increasing the CC cooling was capable of bringing
the TF resistance measurement down to its usual < -160C level,
at the expense of possibly overcooling the vessel and ports. There
were some indications of a small N2 leak on the RGA. 

By the time we got to take shot#5, it was decided to increase the
Ip target at 0.1sec from 200kA to 300kA. The idea was to prevent
the flat or decreasing current waveform between the OH crowbar time
at 0.04sec and 0.10 sec, with the idea of recucing the high li.
This may have been successful, although it took a couple shots since
I initially forgot to increase the Ip gain starting at .04 sec. 
Shot #5 also had ICRF, beginning step 1 and/or 2a.

Most of the rest of the physop's day was spent making shape tweaks to improve 
the outer gap and later trying to match better to the top of the
LH grill. The LH grill probes were observed to be lighting up on the 
video view, and later in the day there were some probe Isat warnings,
although the EFIT outer gap was not that small, >5mm after about shot
#11. While I don't necessarily trust the EFIT gaps with f10 and f11 gone,
this behavior is contrary to the earlier result in which EFIT seemed 
to be claiming the gap to be smaller than it really was, as on 1070619. 
I checked that this was not due to the new EFIT icalz setting by comparing 
to a run of efit01 on 1070711024 using the old icalz value, which
showed insignificantly different outer gap (>1cm). Between shots 13 and 
20 the RXU value was varied between -.02 and +.05 in an effort to 
get higher density and better reflection coefficient at the top
of the LH grill. The results did not seem to make sense (at least to
me). In addition for all of the LH shots (beginning on #12) the LH
seemed to cause a density pumpout between .2 and .3sec.  

We were successful in putting both LH (~.5MW) and ICRF(2MW) into the plasma
starting at 0.2sec, and combining the two, in the initial ramp case
with start of flattop at 0.5sec (600kA). We also got a very nice 
long ramp case with start of flattop at 1.0sec and 2MW ICRF starting
at 0.2sec (shot#21). Shots 22 and 24 both had combined LH and ICRF
into the long ramp case but disrupted early, apparently due to 
injections. Sawteeth were delayed in cases with both ICRF and with LH.
Some of these also had some interesting low-frequency (4,8,12kHz) MHD,
possibly tearing modes. Both the ICRF and LH seemed quite robust to 
excessive trips at these levels, although at higher power the LH 
began to fault. 

There were UFO's and meteors all day on the video cameras, some
of which may have done us in. The H-modes were frequent, but mostly
short. None looked EDA'ish, but the target density was pretty low. 
All the H-L's seemed to be radiative, some helped along by injections
during the h-mode. Since these shots all had early (<180ms) divertor,
this may be a counter-argument to the opinion that getting off the 
limiter early is a cure for impurity problems.
It was interesting that despite the nice constant RF pulses starting
at 0.2sec, most of the H-modes did not come until much later in the
discharge. 

Scorecard:
       No power tests    1
       Duds              1 (No TMX supplies)
       Fizzles           2
       Plasmas <200msec  3
       Plasmas >200msec 17
       ================ ==
       Shots            24




Session Leader Comments

Physics Operator Comments
Jul 11 2007 07:27:55:733AMSteve Wolfe
Setting up for MP#492 experiment,
using PCS from 1070412022 modified for broken flux loops

Import Seg1 & seg2 from 1070412022
Call the predictors-
Seg 1:
 Rcur - change offset from 1500 to 1000
 zcur2, zcur3, zxl, bz_0,
 BR_0 - change offset from -.0007 to -.003
 Ip (superfluous)
Seg 2:
 rcur (all 3 rows)
 zcur2, zcur3
 clearin
 rxl,zxl,rxu,zxu

Program changes in seg2 (start=0.08)
 Ip SOF from 1.0 to 0.5sec
 Leave RXL for now.
Seg1:
 PG4 from 25ms to 20ms

Load at 11-Jul-2007 07:27:38.00
Open tree /home/wolfe/pcs_scratch      -1
Open tree done
 
 
 

Jul 11 2007 09:20:31:163AM1070711001Steve Wolfe
Shot#1: Trying to reproduce startup of 1070412022
but with a 500ms start of flattop. No RF or LH requested yet.

Result: Short, but not a fizzle. 
Gets to about 180ms, looks like a vertical stability problem
The old shot was close to having this problem too, but survived.
I could back off on clearin, or increase rcur some.
Since I want to get the outer gap down anyway, I'll try the latter. 
 

Jul 11 2007 09:37:06:613AM1070711002Steve Wolfe
Shot#2: MOve rcur point at .255s from .652 to .660 and
                           .374s from .65352 to .660
                           .543  from .6553 to .660
Leave clearin as is for now. 
Another shorty. Something funny about the EFC current this time.
I think I'd better back off on clearin. 
Breakdown looks ok, bz is a bit negative.

Jul 11 2007 09:50:13:327AM1070711003Steve Wolfe
Shot#3: Drop clearin @.12 from .018 to .01
plasma full length. diverts around 180ms. 
Still a little dicey between 160 and 240ms
on efc. 

Next: start tuning gaps a little

Jul 11 2007 10:08:49:310AM1070711003Steve Wolfe
Shot#4: clearin @.12sec from .01 to .008
rcur @.8 from .659 to .660
ZXL @.536 from +.044 to .02,.62 to .01

HEAT breaker tripped before this shot and had to be reset.
Vessel temperature got down to -12C. Likely about a half-hour delay.

Jul 11 2007 11:28:01:247AM1070711004Steve Wolfe
Shot#4: clearin @.12sec from .01 to .008
rcur @.8 from .659 to .660
ZXL @.536 from +.044 to .02,.62 to .01
** Change Ip demand to ask for 300kA at .1 sec instead of 200kA **
segments 1 and 2. late change per SL request.

Shot#4 will be a no power cycle to get a TF scanner reading. 
There seems to be a problem with the TF resistance value
at the PLC. 

Jul 11 2007 12:10:01:810PM1070711005Steve Wolfe
Shot#5: Resistance reading still shows -153C, 
Jim says take the shot anyway. 
clearin @.12sec from .01 to .008
rcur @.8 from .659 to .660
ZXL @.536 from +.044 to .02,.62 to .01
** Change Ip demand to ask for 300kA at .1 sec instead of 200kA **
segments 1 and 2. late change per SL request.

plasma full length, H-mode from .63 to .9sec
Early current still has the flat spot, probably because
there's no gain on Ip until 70ms and then only at 1.0 instead of 4.

Try moving rcur out earlier and turn Ip gain on sooner 


Jul 11 2007 12:39:48:613PM1070711006Steve Wolfe
Shot#6: In seg1: Ip gain on at 1 at .04sec, to 4 at .06sec
In seg2: first rcur point at .66 from .255sec to .18sec
ICRF to fire at 300msec

To INIT at -150C reading.
Got runaways this time. plasma ran full length
bounce in startup (12msec)
Three h-modes, starting at 1sec. 
Did get less of a current pause after crowbar at .04sec
outer gap is smaller, down to 2cm at 0.2sec, <1cm at .3sec
RF didn't try to come on until .4sec, stayed on after .5sec


Jul 11 2007 12:55:14:080PM1070711007Steve Wolfe
Shot#7: pg 4 from 20 to 23msec, ic_ef4u from -1325 to -1310A
rcur @.18sec from .660 to .6625
fizzle. 

Next: EF4 back to -1325


Jul 11 2007 01:05:44:023PM1070711008Steve Wolfe
Shot#8: pg 4 from 20 to 23msec, ic_ef4u back to -1325 from -1310A
rcur @.18sec from .660 to .6625
plasma, bounced again, one early runawau dump around 40msec
RF on at .2sec, heating is clear on ece. 
H-modes at 1.2sec, outer gap goes to 1mm at .3sec

Next: Increase RF to 2MW, try to flatten gap 


Jul 11 2007 01:21:21:397PM1070711009Steve Wolfe
Shot#9: pg 4 from 23 to 25msec
Add an rcur point at .25s,.659

fizzle. actually, made it to 200kA, but had bounced twice.
Bz came up on this shot. 

Next: rcur offset from 1000 to 1300


Jul 11 2007 01:37:00:330PM1070711010Steve Wolfe
Shot#10: rcur offset from 1000 to 1300
pg 4 still at 25msec
Add an rcur point at .25s,.659

plasma full length, still has one early bounce
RF ok at .2sec, 2MW; H-mode starts at 1.2sec
outer gap back up to 4mm at .3sec, ends up at 1.5cm after .6sec
I think the ZXL sweep is affecting this gap through the CLEARIN.

Next: LH is complaining about probe ISAT at .3 sec and 1.7sec
Need to open the gap more. 

Jul 11 2007 01:59:20:643PM1070711011Steve Wolfe
Shot#11: MOve ZXL down to zero faster earlier; see if that 
gets rid of the small outer gap around 0.3sec. 
Move CLEARIN ramp in rampdown slower
No startup changes. 

Disrupted at 0.8sec. Gap didn't change as much as I expected. 
On the plus side, no bounce. 

There was a trip on TMX on EFC-B, but that seems to be later. 
Not sure what happened. There are thrashes on zcur and efc
starting at 0.7sec, but I don't know what's cause and what's effect. 



Jul 11 2007 02:19:47:363PM1070711012Steve Wolfe
Shot#12: drop pg4 from 25 to 23msec
Trying for LH at 0.2sec
plasma full length. Got the LH ok, 400kW.  

Next: move XU up and out between .2 and .4 for LH coupling

Jul 11 2007 02:30:40:807PM1070711013Steve Wolfe
Shot#13:  move ZXU up between .2 and .4 and
RXU out from -.02 to 0 all through shot for LH coupling
plasma ful length, LH on with no dropouts

Next: try moving closer at top (still more)

Jul 11 2007 02:40:39:300PM1070711014Steve Wolfe
Shot#14: RXU from 0 to +.02, ZXU back down to 0
NO TMX supplies == DUD

Next: try that again

Jul 11 2007 03:02:15:003PM1070711015Steve Wolfe
Shot#15: RXU from 0 to +.02, ZXU back down to 0
plasma full length, 
Still not close enough to top of grill

Jul 11 2007 03:17:35:993PM1070711016Steve Wolfe
Shot#16: RXU from +.02 to +.05
Move nl04=5e19 from .4 to .3sec
plasma full length, som LH trips. 
Density at top of grill is higher this time.

Next: repeat

Jul 11 2007 03:34:27:723PM1070711017Steve Wolfe
Shot#17: RXU back from .05 to .02 
(Now he claims it may have been too close on 16)
plasma full length, LH still tripping between .27 and .34
Now the density at the grill is higher by a factor of 10. 
There is something very screwy with that measurement.
This one does have more gas coming in then.

Next: ICRF + LH, no PCS change


Jul 11 2007 03:44:30:280PM1070711018Steve Wolfe
Shot#18:  ICRF + LH, no PCS change
plasma full length, with some fireworks. 
Something comes in at .8sec and gives a huge fast xray dump.
h-mode at .38sec

Next: raise ICRF, not LH


Jul 11 2007 03:57:12:523PM1070711019Steve Wolfe
Shot#19:  ICRF + LH, no PCS change
plasma full length, six h-modes
LH has a couple of dropouts; ICRF ok in two steps
Some injections throughout, 

Next: Move 2MW ICRF earlier



Jul 11 2007 04:09:57:237PM1070711020Steve Wolfe
Shot#20:  ICRF + LH, no PCS change
plasma full length, h-modes, sparks
LH and ICRF on ok, one ICRF trip at .29

Next: go to the slow ramp?



Jul 11 2007 04:26:42:013PM1070711021Steve Wolfe
Shot#21: Move start of flattop to 1.0sec
2MW ICRF, LH off
Alternator fault in INIT, cleared
plasma full length. Got some h-modes late. 
ICRF looks clean. Stored energy ramps up 
with the current. 
rmidout no longer has overshoot. 
Got an oh2l coax warning. We're not double swinging. 
change invert times and fizzle gate. 



Jul 11 2007 04:43:16:543PM1070711022Steve Wolfe
Shot#22: No PCS changes, ICRF and LH
fizzle gate off to 2.1, tf and oh inverts to 2.3sec

disrupted at .68sec, H-mode early, RF and LH both there. 
Doesn't look like a vertical or EFC problem this time.
I think it's just a killer injection.



Jul 11 2007 04:46:22:187PM1070711023Steve Wolfe
Shot#23: No PCS changes, ICRF and LH at .2sec
fizzle gate off to 2.1, tf and oh inverts to 2.3sec

fizzle. 
Next: drop pg4 2ms (one shot late)


Jul 11 2007 05:15:18:660PM1070711024Steve Wolfe
Shot#24: drop pg4 2ms (one shot late)
Allow pellet at 1.6sec 
Last shot today try for combined LH and ICRF in slow ramp case

Disrupted at .9sec. ICRF and LH one short drop-out
No long hmode this time. Still seems to be an injection,
but I'm suspicious that it may be associated with the LH,
since 21 didn't seem to have a problem.

On 21,22, and 24 there seem to be low frequency MHD modes (tearing?)
around 4kHz and harmonics(?). On 22 and 24 these are there and
strong just before the disruption, on 21 they seem to go away
during the H-modes after 1.1sec. No sign that they slow and lock
at the disruption, but maybe they are contributory. 




Engineering Operator Comments
ShotTimeTypeStatusComment
109:10:55:687AMPlasmaOk
209:27:49:950AMPlasmaOk
309:40:32:290AMPlasmaOk
411:29:55:793AMTestOk
511:59:05:333AMPlasmaOk
612:32:00:640PMPlasmaOk
712:46:14:540PMPlasmaOk
812:59:03:143PMPlasmaOk
901:11:39:653PMPlasmaOk
1001:24:28:100PMPlasmaOk
1101:41:54:863PMPlasmaBadEFC Power Supply Problem during the Shot
1202:07:09:087PMPlasmaOk
1302:24:03:473PMPlasmaOk
1402:37:53:140PMPlasmaBadWe forgot to reset TMX beakers after an i2T fault
1502:53:49:927PMPlasmaOk
1603:07:21:020PMPlasmaOk
1703:22:48:637PMPlasmaOk
1803:35:56:587PMPlasmaOk
1903:49:11:080PMPlasmaOk
2004:02:02:540PMPlasmaOk
2104:14:36:223PMPlasmaOk
2204:31:10:750PMPlasmaOk
2304:43:56:153PMPlasmaOk
2404:56:33:630PMPlasmaOk

System Availability
Jul 11 2007 09:10:31:093AM
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
Bolometersyes2Pi diode operational, 2Pi foil being upgrade for noise resistance. Midplane foils calibrated for senstivity, still need better time constants. Midplane and divertor AXUV being digitized, processing calibration data.May 29 2007 11:22AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
BoronizationyesFirst Boronization 5/9/07May 10 2007 04:55PM (irby)Jim IrbyBoronizationdekow,irby
CNPAno Jan 14 2007 02:06PM Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertoryesThe cryopump is operational in a manual mode. We will be working on interfacing its control system with the C-Mod state machine for semi-automatic operation.May 30 2007 07:58PM (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=[75,4:87.4]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.Jun 20 2007 05:35PM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,rachmcd,rowan
D Alphayes\ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are availableMar 11 2007 10:28PM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayescamera is re-installed, and view has been calibratedFeb 26 2007 03:28PM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationno Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNByesAll systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shotsMar 28 2007 09:36AM (beals)Bob GranetzDiagnostic Beambeals,granetz
FRC-ECEnoOnly high frequency channels now working (17 to 32). LO is OK. Problem looks to be in mixer amp unit.Jun 29 2007 05:42PM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesThe gauge is operational.Mar 30 2007 10:54AM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
GPCyesChs 1-8 operational. May 24 2007 08:40AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels (except 1,5,8,10,17) operational. Jun 08 2007 08:29AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPIyesNew view just outside of the lower X-point is operational, but data is being archived locally , not to the tree. Midplane GPI is not operational.Mar 27 2007 01:59PM (terry)Jim TerryGas Puff Imagingterry,zweben
H/Dyesspectral calibration needs to be checked, but system should be ready for the runFeb 26 2007 03:28PM (marmar)Earl MarmarH/D Ratiomarmar
Hirex Jryes Mar 06 2007 08:59AM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesStoring Data, but profiles not yet availableApr 27 2007 01:20PM (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-Antennayes80.5 MHz. Max power is about 1.5 MWJun 20 2007 09:23AM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayes80 MHz. Maxc power is about 1.5 MWJun 20 2007 09:23AM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayes78 MHz. dipole configuration. Using #4 transmitter only. Max power about 1.5 MW instead of 3 MW.Jun 20 2007 09:22AM (ylin)Steve WukitchJ-port antennawukitch,ylin
Lower Hybridno6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry)Ron ParkerLower Hybriddterry,parker
LPIyes Apr 26 2007 08:35PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphayesMidplane data being digitized, processing calibration data. Divertor views showing significant noise, and not available. Upper view being debugged.May 29 2007 11:23AM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesWorking normally.Apr 19 2007 09:52AM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Mar 28 2007 08:33AM (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
MSEno(1) Bandpass filters replacement underway (2) Beam-into-gas spectrum measurement underway (3) Shutter mechanism currently unstable; remains open. (4) Expect beam-into-gas calibrations complete about 4/24. Apr 03 2007 12:05PM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesBoth neutron systems are fully operationalApr 05 2007 11:19AM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesoperationalMar 21 2007 04:29PM (irby)Jim IrbyX-Ray/Neutron Detector at K-Horirby
NINJAyesAll capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter).Mar 29 2007 11:47AM (terry)Brian LaBombardNINJA gas pufflabombard,terry
PCIyesThe system is to be optimized.May 30 2007 01:12PM (lianglin)Miklos PorkolabPhase Contrast Imagingedlund,lianglin,ntsujii,porkolab
Penning Gaugesyes8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'.Mar 13 2007 10:01PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational.Mar 27 2007 01:53PM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoRetro shutter closedMar 15 2007 11:00AM (irby)Jim IrbyC-Mod Polarimeterirby
Probe Array - ISDyesProbes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms.Mar 13 2007 09:47PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesAll 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesProbes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyes14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis.Mar 13 2007 12:46PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometernoTemporarily out of serviceJul 10 2007 01:44PM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesPerpendicular Mach probe head is installed. The drive is operational.Mar 15 2007 09:09PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesPerpendicular Mach probe head is installed. The probe drive is now operational.Mar 13 2007 09:51PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesA-port WASP successfully collected data on 04/04. Some intermittent open circuit on SE Electrode. K-WASP took data on 04/11. Both ready to scan as needed.Apr 12 2007 04:18PM (nsmick)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
TCIyesNL_04 at 71.04 cm from 3/9/07 calibrationMay 23 2007 07:38AM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - Coreyes2 lasers, 11 spatial channels. Density is calibrated based on ECE cutoffs obtained on 4 May 2007. Additional spatial channels will be added over the next several weeks.May 10 2007 10:37AM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes
TS - Edgeyes2 lasers, 20 spatial channels. Fiber holder position is -124.5mm (standard). Density is calibrated according to Raman scattering results from 26 May, supplemented with ECE cutoffs obtained on shot 1070531015.Jun 14 2007 06:21PM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes
Vispecyes350 and 670 nm, 4 spatial channelsMay 04 2007 01:02PM (agraf)Alex GrafVisible Spectrometeragraf


Jul 11 2007 09:27:26:997AM
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
Bolometersyes2Pi diode operational, 2Pi foil being upgrade for noise resistance. Midplane foils calibrated for senstivity, still need better time constants. Midplane and divertor AXUV being digitized, processing calibration data.May 29 2007 11:22AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
BoronizationyesFirst Boronization 5/9/07May 10 2007 04:55PM (irby)Jim IrbyBoronizationdekow,irby
CNPAno Jan 14 2007 02:06PM Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertoryesThe cryopump is operational in a manual mode. We will be working on interfacing its control system with the C-Mod state machine for semi-automatic operation.May 30 2007 07:58PM (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=[75,4:87.4]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.Jun 20 2007 05:35PM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,rachmcd,rowan
D Alphayes\ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are availableMar 11 2007 10:28PM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayescamera is re-installed, and view has been calibratedFeb 26 2007 03:28PM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationno Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNByesAll systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shotsMar 28 2007 09:36AM (beals)Bob GranetzDiagnostic Beambeals,granetz
FRC-ECEnoOnly high frequency channels now working (17 to 32). LO is OK. Problem looks to be in mixer amp unit.Jun 29 2007 05:42PM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesThe gauge is operational.Mar 30 2007 10:54AM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
GPCyesChs 1-8 operational. May 24 2007 08:40AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels (except 1,5,8,10,17) operational. Jun 08 2007 08:29AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPIyesNew view just outside of the lower X-point is operational, but data is being archived locally , not to the tree. Midplane GPI is not operational.Mar 27 2007 01:59PM (terry)Jim TerryGas Puff Imagingterry,zweben
H/Dyesspectral calibration needs to be checked, but system should be ready for the runFeb 26 2007 03:28PM (marmar)Earl MarmarH/D Ratiomarmar
Hirex Jryes Mar 06 2007 08:59AM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesStoring Data, but profiles not yet availableApr 27 2007 01:20PM (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-Antennayes80.5 MHz. Max power is about 1.5 MWJun 20 2007 09:23AM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayes80 MHz. Maxc power is about 1.5 MWJun 20 2007 09:23AM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayes78 MHz. dipole configuration. Using #4 transmitter only. Max power about 1.5 MW instead of 3 MW.Jun 20 2007 09:22AM (ylin)Steve WukitchJ-port antennawukitch,ylin
Lower Hybridno6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry)Ron ParkerLower Hybriddterry,parker
LPIyes Apr 26 2007 08:35PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphayesMidplane data being digitized, processing calibration data. Divertor views showing significant noise, and not available. Upper view being debugged.May 29 2007 11:23AM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesWorking normally.Apr 19 2007 09:52AM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Mar 28 2007 08:33AM (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
MSEno(1) Bandpass filters replacement underway (2) Beam-into-gas spectrum measurement underway (3) Shutter mechanism currently unstable; remains open. (4) Expect beam-into-gas calibrations complete about 4/24. Apr 03 2007 12:05PM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesBoth neutron systems are fully operationalApr 05 2007 11:19AM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesoperationalMar 21 2007 04:29PM (irby)Jim IrbyX-Ray/Neutron Detector at K-Horirby
NINJAyesAll capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter).Mar 29 2007 11:47AM (terry)Brian LaBombardNINJA gas pufflabombard,terry
PCIyesThe system is to be optimized.May 30 2007 01:12PM (lianglin)Miklos PorkolabPhase Contrast Imagingedlund,lianglin,ntsujii,porkolab
Penning Gaugesyes8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'.Mar 13 2007 10:01PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational.Mar 27 2007 01:53PM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoRetro shutter closedMar 15 2007 11:00AM (irby)Jim IrbyC-Mod Polarimeterirby
Probe Array - ISDyesProbes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms.Mar 13 2007 09:47PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesAll 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesProbes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyes14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis.Mar 13 2007 12:46PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometernoTemporarily out of serviceJul 10 2007 01:44PM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesPerpendicular Mach probe head is installed. The drive is operational.Mar 15 2007 09:09PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesPerpendicular Mach probe head is installed. The probe drive is now operational.Mar 13 2007 09:51PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesA-port WASP successfully collected data on 04/04. Some intermittent open circuit on SE Electrode. K-WASP took data on 04/11. Both ready to scan as needed.Apr 12 2007 04:18PM (nsmick)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
TCIyesNL_04 at 71.04 cm from 3/9/07 calibrationMay 23 2007 07:38AM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - Coreyes2 lasers, 10 spatial channels. Density is calibrated based on ECE cutoffs obtained on 4 May 2007. Additional spatial channels will be added over the next several weeks.Jul 11 2007 09:18AM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes
TS - Edgeyes2 lasers, 20 spatial channels. Fiber holder position is -124.5mm (standard). Density is calibrated according to Raman scattering results from 26 May, supplemented with ECE cutoffs obtained on shot 1070531015.Jun 14 2007 06:21PM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes
Vispecyes350 and 670 nm, 4 spatial channelsMay 04 2007 01:02PM (agraf)Alex GrafVisible Spectrometeragraf


Jul 11 2007 11:29:36:823AM
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
Bolometersyes2Pi diode operational, 2Pi foil being upgrade for noise resistance. Midplane foils calibrated for senstivity, still need better time constants. Midplane and divertor AXUV being digitized, processing calibration data.May 29 2007 11:22AM (mlreinke)Matt ReinkeBolometershutch,mlreinke
BoronizationyesFirst Boronization 5/9/07May 10 2007 04:55PM (irby)Jim IrbyBoronizationdekow,irby
CNPAno Jan 14 2007 02:06PM Ron ParkerCompact Neutral Analyzerparker
Cryopump - Upper DivertoryesThe cryopump is operational in a manual mode. We will be working on interfacing its control system with the C-Mod state machine for semi-automatic operation.May 30 2007 07:58PM (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=[75,4:87.4]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.Jun 20 2007 05:35PM (bespam)Bill RowanCharge Exchange Spectroscopybespam,blip,rachmcd,rowan
D Alphayes\ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are availableMar 11 2007 10:28PM (terry)Jim TerryBalmer Alpha Monitorirby,terry,wolfe
Dalsayescamera is re-installed, and view has been calibratedFeb 26 2007 03:28PM (marmar)Earl MarmarVisible Bremsstrahlungmarmar
Disruption Mitigationno Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNByesAll systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shotsMar 28 2007 09:36AM (beals)Bob GranetzDiagnostic Beambeals,granetz
FRC-ECEnoOnly high frequency channels now working (17 to 32). Ch 22 has bad video amp. LO is OK. Problem looks to be in mixer amp unit.Jul 11 2007 10:52AM (phillips)Perry PhillipsHeterodyne ECE-32 channelsphillips
G-Side RatiomaticyesThe gauge is operational.Mar 30 2007 10:54AM (labombard)Brian LaBombardG-side ratiomatic ionization gaugelabombard,toland
GPCyesChs 1-8 operational. May 24 2007 08:40AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPC2yesMost channels (except 1,5,8,10,17) operational. Jun 08 2007 08:29AM (hubbard)Amanda HubbardECE Polychromaterhubbard,schmidt
GPIyesNew view just outside of the lower X-point is operational, but data is being archived locally , not to the tree. Midplane GPI is not operational.Mar 27 2007 01:59PM (terry)Jim TerryGas Puff Imagingterry,zweben
H/Dyesspectral calibration needs to be checked, but system should be ready for the runFeb 26 2007 03:28PM (marmar)Earl MarmarH/D Ratiomarmar
Hirex Jryes Mar 06 2007 08:59AM (rice)John RiceHigh Resolution X-Rayince,rice
Hirex SryesStoring Data, but profiles not yet availableApr 27 2007 01:20PM (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-Antennayes80.5 MHz. Max power is about 1.5 MWJun 20 2007 09:23AM (ylin)Steve WukitchD-port antennawukitch,ylin
ICRF E-Antennayes80 MHz. Maxc power is about 1.5 MWJun 20 2007 09:23AM (ylin)Steve WukitchE-port antennawukitch,ylin
ICRF J-Antennayes78 MHz. dipole configuration. Using #4 transmitter only. Max power about 1.5 MW instead of 3 MW.Jun 20 2007 09:22AM (ylin)Steve WukitchJ-port antennawukitch,ylin
Lower Hybridno6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry)Ron ParkerLower Hybriddterry,parker
LPIyes Apr 26 2007 08:35PM (bose)Earl MarmarLithium Pellet Injectorbose,marmar
Ly-alphayesMidplane data being digitized, processing calibration data. Divertor views showing significant noise, and not available. Upper view being debugged.May 29 2007 11:23AM (mlreinke)Matt ReinkeLyman alpha cameraslabombard,mlreinke
McPhersonyesWorking normally.Apr 19 2007 09:52AM (mlreinke)Jim TerryVUV Spectrometermlreinke,terry
MichelsonyesOperational. Mar 28 2007 08:33AM (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
MSEno(1) Bandpass filters replacement underway (2) Beam-into-gas spectrum measurement underway (3) Shutter mechanism currently unstable; remains open. (4) Expect beam-into-gas calibrations complete about 4/24. Apr 03 2007 12:05PM (sscott)Steve ScottMotional Stark Effectjinseok,sscott
NeutronsyesBoth neutron systems are fully operationalApr 05 2007 11:19AM (fiore)Catherine FioreNeutron Detectorsfiore
Neuts and HardsyesoperationalMar 21 2007 04:29PM (irby)Jim IrbyX-Ray/Neutron Detector at K-Horirby
NINJAyesAll capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter).Mar 29 2007 11:47AM (terry)Brian LaBombardNINJA gas pufflabombard,terry
PCIyesThe system is to be optimized.May 30 2007 01:12PM (lianglin)Miklos PorkolabPhase Contrast Imagingedlund,lianglin,ntsujii,porkolab
Penning Gaugesyes8 in-situ Penning ionization gauges appear to be operational: CB_DivU, CB_OutL, CB_DivL, KA_OutU, KA_OutL, B_DivL, Cryo_1, Cryo_2. Cryo_1 and Cryo_2 are new and installed in the upper cryopump 'gas-box'.Mar 13 2007 10:01PM (labombard)Brian LaBombardPenning Ionization Gaugeslabombard
Plasma TVyesWIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational.Mar 27 2007 01:53PM (terry)Jim TerryVideo of plasma via several camerasdekow,irby,terry,wolfe
PolarimeternoRetro shutter closedMar 15 2007 11:00AM (irby)Jim IrbyC-Mod Polarimeterirby
Probe Array - ISDyesProbes at 15 of the 16 poloidal locations ('ramped' geometry) are operational. n,Te, particle flux reported every 10 ms.Mar 13 2007 09:47PM (labombard)Brian LabombardInner Lower Divertor Probe Arraylabombard
Probe Array - LHyesAll 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard)Brian LaBombardLower Hybrid Probe Arraylabombard
Probe Array - OSDyesProbes at 10 poloidal locations (one 'ramped' and one 'flush') are operational. n,Te, particle flux reported every 10 ms. Mar 13 2007 09:45PM (labombard)Brian LaBombardOuter Lower Divertor Probe Arraylabombard
Probe Array - UDIVyes14 probes are operational ('ramped' geometry). n,Te, particle flux reported every 10 ms.Two high-gain channels are installed and operational for ECDC plasma diagnosis.Mar 13 2007 12:46PM (labombard)Brian LaBombardUpper Divertor Probe Arraylabombard
ReflectometernoTemporarily out of serviceJul 10 2007 01:44PM (dominguez)Earl MarmarReflectometerdominguez,marmar
Scanning Probe - ASPyesPerpendicular Mach probe head is installed. The drive is operational.Mar 15 2007 09:09PM (labombard)Brian LaBombardA-Port Scanning Probelabombard
Scanning Probe - FSPyesPerpendicular Mach probe head is installed. The probe drive is now operational.Mar 13 2007 09:51PM (labombard)Brian LaBombardF-Port Scanning Probelabombard
Scanning Probe - WASPyesA-port WASP successfully collected data on 04/04. Some intermittent open circuit on SE Electrode. K-WASP took data on 04/11. Both ready to scan as needed.Apr 12 2007 04:18PM (nsmick)Brian LaBombardInner Wall Scanning Probelabombard,nsmick
TCIyesNL_04 at 71.04 cm from 3/9/07 calibrationMay 23 2007 07:38AM (irby)Jim IrbyTwo-Color Interferometerirby,murray
TS - Coreyes2 lasers, 10 spatial channels. Density is calibrated based on ECE cutoffs obtained on 4 May 2007. Additional spatial channels will be added over the next several weeks.Jul 11 2007 09:18AM (jwhughes)Jerry HughesCore Thomson scatteringjwhughes
TS - Edgeyes2 lasers, 20 spatial channels. Fiber holder position is -124.5mm (standard). Density is calibrated according to Raman scattering results from 26 May, supplemented with ECE cutoffs obtained on shot 1070531015.Jun 14 2007 06:21PM (jwhughes)Jerry HughesMillimeter resolution edge Thomson scatteringjwhughes
Vispecyes350 and 670 nm, 4 spatial channelsMay 04 2007 01:02PM (agraf)Alex GrafVisible Spectrometeragraf