Alcator C-Mod Run 1071219 Information

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 1-6)

Miniproposal: 518

Date Filed: 11/30/2007

Title: LH_B and LH_D NINJA Capillary Testing

First Author: Greg Wallace

Session Leader: Greg Wallace (shots 7-32)

Operators
Session leader(s):	Greg Wallace,Greg Wallace
Physics operator(s):	Earl Marmar
Engineering operator(s):	Andy Pfeiffer,Gary Dekow

Engineering Operator Run Comment
MP#473: LH check-out and initial operation MP#518: LH_B and LH_D NINJA C

Session Leader Plans

Entered: Dec 18 2007 02:32:14:563PM

Author: Greg Wallace

Session Leader plan for 1071219
SL: G. Wallace
PO: E. Marmar

This run will be a combination of MP's 473 (LH Conditioning) and 518 (LH NINJA
Puffing). The gameplan is to start with MP473, bringing up the
power level to at least 700kW. After bringing up the LH power level we will switch
to MP 518.

LH system setup: Phase shifters at 90 degrees current drive direction, 1.5mm
behind LH limiter. Start at 40kV beam voltage. 500ms shot starting at 700ms.

Plasma setup: Start with 1071207027. Overnight ECDC. Cryopump in afternoon.

Shot Plan:
Start with 500ms pulse at 80kW per klystron. Increase power each shot in
20kW/klystron incriments up to 700kW without arcing. After an arc, reduce power
then continue raising in 10kW incriments. Operate NINJA LH_B and LH_D
capillaries in piggyback mode after LH turns off at 1.2 seconds. Start at
5psi plenum fill and look at local density increase at LH grill. Adjust
pressure up and down to see effect of different gas rates.

Switch to MP 518 at 700kW net without arcs.

Reduce power back to 20kW per klystron, 500ms pulse starting at 700ms. Set
NINJA such that LH_B hits plasma at 900ms and LH_D hits plasma at 1100ms.

Increase power in 10kW incriments, making sure we do not see flashes or
breakdown in the waveguides. If possible, decrease programmed nl_04 to keep
edge density near constant for good coupling. Gas puff rates may need to be
adjusted if ionization increases with LH power level. Cryopump and upper null may
be required for density control if all goes well.

Physics Operators Plans

Entered: Dec 18 2007 04:24:39:857PM

Author: Earl Marmar

Engineering setup for Wednesday 19 Dec 2007

MP#473: LH check-out and initial operation
MP#518: LH_B and LH_D NINJA Capillary Testing

SL: G. Wallace
PO: E. Marmar

ECDC overnight in D2 and bake at 60 C. Stop ECDC by 7:00 am.

Run will start at 09:00 and end at 17:00.

Power systems as on 1071207027

A-coil configuration: +Dtop -Dbot -Jtop +Jbot; Enabled (standard
configuration)

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 INITIALLY DISABLED

Enable the following gate valves and shutters, assuming no vacuum problems:
ECE, VUV, Z-bolo (Do not enable DNB gate valve.)

Torvac setup: gate valves open

Specific diagnostics: standard set

-------------------------------------------------------------------------------
ICRF Setup: not required for MP

LH Setup: Set launcher to 1.5mm behind LH limiter. Phase shifters set to 90 deg current drive direction. Start with 80 kW per klystron, 500 ms.

DNB: no

Cryopump: yes, in afternoon
-------------------------------------------------------------------------------
Run plan: Start with 1071207027 and go from there.
nl_04~0.8e20, outer gap~1cm.

tune as required, including density

upper-null with cryopump may be used in latter half of the run

Session Leader Summaries

Entered: Dec 20 2007 03:36:39:627PM

Author: Greg Wallace

Session Leader Summary for 1071219
Session Leader: G. Wallace
Physics Operator: E. Marmar

The majority of this run day was spent testing the newly installed LH NINJA gas
capillaries as part of MP 518. Shots 1 through 6 were conditioning shots (MP
473) to make sure the LH system was operating as expected. Piggyback gas puff
tests on these early shots confirmed 5psi plenum pressure as a good starting
point for MP 518.

Gas puffing during the LH pulse started with shot 7. The plan was to start at
low power in LSN and slowly increase shot to shot to make sure we did not see
arcing in the vacuum side of the guides. The NINJA capillaries were set to
trigger at 700ms at first, then changed to 650ms starting with shot 10. A delay
of ~150ms is observed between the NINJA trigger and when the puff hits the
plasma.

Operation in LSN at up to 700kW at 5.6psi plenum fill was successful without any
arcing in the waveguides on the vacuum side. This is one of the key points of
the MP since there was some experience at JET that placing a gas capillary close
to the LH antenna would cause arcing in the waveguides due to the ionization of
neutral gas. This does not seem to be a problem in LSN at up to 700kW and 5psi.

The reduction in reflections was quite pronounced at low power levels with power
reflection coefficients falling from >35% to <25% for less than 300kW net LH
power. As the power level increased, the reduction in reflections seemed to
lessen, although the noise level in the reflections did still noticably
decrease. A reduction in noise on the reflected signals does help prevent
nuisance trips since sudden spikes in the reflected power often trip out the LH
system when no arc is present.

On shot 19 we switched to USN with the cryopump on, keeping the plenum at 5.6psi
and ~700kW net LH power. This caused arcing on all four rows of the LH antenna
starting when the gas puff hit at ~.8s. This seems to be the cause for a
disruption at 1.05s. After this we reduced the LH net power ~500kW and the
plasma density to nl_04~5.5e19 and did not see any more evidence of arcing on
the LH camera.

In upper null at ~500kW the effect of the gas puffing seemed to reduce
reflections on the top of the grill while causing them to rise of the bottom of
the grill. A comparison between shots 29 (7psi B and D side) and 30 (7psi D
side only) show similar results, with reflections decreasing over time on the
top of the grill and incraesing over time on the bottom of the grill.

Overall, this run day was quite a success. We were able to run at 700kW with
5psi plenum fill without arcing in LSN. We were also able to run without arcing
at 7psi plenum fill and 500kW net LH power in upper null. Unfortunately we lost
much of the day due to a slow start and then disruptions and fizzles in the
afternoon. Another day should allow us to explore the safe operational range a
bit more, particularly to investigate the effect of increasing the outer gap and
pulling the launcher back further behind the limiter.

Physics Operator Summaries

Entered: Dec 19 2007 05:41:03:400PM

Author: Earl Marmar

A reasonably good run from the Physop point of view. We struggled with startup runaways for much of the run, mostly correlated with fast intitial current rise. I kept increasing the prefill pressure, eventually getting close to 0.1 mTorr. There were also tweaks to RCUR offset and BR_0.

We ran LSN shots without cryopumping, and then switched to USN with cryopumping for shot 19 and subsequent.

We got into the afternoon fizzle cycle, starting with shot 22. Eventually we got the plasmas back (shot 26), perhaps because of aggressive prefill puffing and the wirehead tweaks.

2 shots were lost to the ef3 breaker pulling before t=0.

One shot (14) hung in init (no power shot)

Shot 2 disrupted early with errors on BP25_BC; the coil was ok for the rest of the run.

Scorecard:
Plasmas 24
Fizzles 4
P.S. Duds 2
Test/nopower 2

Session Leader Comments

Dec 19 2007 09:26:35:803AM 1071219001 Greg Wallace LH shot ran clean at ~40kW per klystron. Some strange behavior on the setpoints for the LH system, Atma is investigating.

NINJA fired at 1.2s, hit the plasma around 1.35s on the LH camera view. Small density increase at LH grill visible as well as small increase in nl_04.

Dec 19 2007 09:47:55:343AM 1071219002 Greg Wallace Disruption at 0.48s.

Dec 19 2007 10:38:33:220AM 1071219003 Greg Wallace Test shot, no plasma.

Dec 19 2007 10:38:20:753AM 1071219004 Greg Wallace Another disruption.

Dec 19 2007 11:00:36:057AM 1071219005 Greg Wallace Full length plasma, LH ran clean although still putting out much less than the demand power. Will try one more time to get the system to work properly before going on to gas puffing experiments.

Dec 19 2007 11:12:09:030AM 1071219006 Greg Wallace Funny behavior on 6B again caused some trips, but the klystrons are now giving the demanded power. Next shot will decrease to 30kW per klystron and fire NINJA at 700ms, which should cause the density to rise around 850ms.

Dec 19 2007 11:23:02:130AM 1071219007 Greg Wallace Seems like the gas puffing works at 30kW per klystron!!!! The LH reflection coeffecient goes down significantly from ~35% to ~25% when the gas hits the plasma. The effect is more noticable on the top half of the grill. No signs of arcing on the LH camera. Next shot will keep the gas the same and increase LH power to 40kW per klystron.

Dec 19 2007 11:38:21:040AM 1071219008 Greg Wallace It still works! No arcing on the vacuum side visible on camera, and the reflections decrease during the puff. Unfortunately nl_04 increases from 5.5-7e19 during the LH pulse. Next shot will turn down the puff from 5psi to 3psi and increase the power to 50kW per klystron.

Dec 19 2007 11:51:22:920AM 1071219009 Greg Wallace No signs of arcing on the vacuum side. Still a significant effect on the reflections at 3.6psi with less increase in nl_04. Will increase to 60kW per klystron and move NINJA to 650ms firing for the next shot.

Dec 19 2007 12:02:59:783PM 1071219010 Greg Wallace Reflections get "quieter" although less reduction in overall magnitude. Next shot will increase power to 70kW per klystron.

Dec 19 2007 12:16:46:697PM 1071219011 Greg Wallace Not much decrease in reflections at 3.6psi. Will keep power at 70kW per klystron and increase fill to 5.6psi.

Dec 19 2007 12:32:26:610PM 1071219012 Greg Wallace NINJA pressure increase didn't take. Next shot will keep power at 70kW and increase to 5.6psi for real.

Dec 19 2007 12:40:28:520PM 1071219013 Greg Wallace Significant decrease in reflection, although nl_04 rose from 5.5 to 6.5e19. No arcing visible on the LH camera. Next shot will increase to 85kW per klystron.

Dec 19 2007 01:09:49:717PM 1071219015 Greg Wallace Decrease in reflections during gas puffing is getting less obvious as the power increases. Still no sign of breakdown on the antenna. Will increase to 100kW per klystron and 50kV beam voltage.

Dec 19 2007 01:42:12:557PM 1071219017 Greg Wallace Shot ran clean, still no arcing on the LH camera. Will increase to 135kW per klystron.

Dec 19 2007 01:47:33:060PM 1071219018 Greg Wallace Effect of the puffing seems to be decreasing with power still, although still no arcing on vacuum side at 700kW net. Will change to upper null with cryopump on to see if we can decrease line averaged density while still keeping reflections down.

Dec 19 2007 02:12:26:570PM 1071219019 Greg Wallace Looks like some sparking on the LH grill caused the disruption. For the next shot we will:
Decrease LH power to 100kW per klyston
Decrease programmed density from 8 to 5e19 on nl_04
Turn off LH gas puff to get a baseline

Saw some glowing after the disruption in the normal place between the C and D rows of the LH coupler. Not surprising given the very high Isat on the LH probes.

Dec 19 2007 03:22:17:660PM 1071219021 Greg Wallace LH ran clean with no gas puffing. Grill density still quite high (>1e18) despite no puff. Will try decreasing nl_04 to 4e19 while turning puff back on and keeping power level at 100kW/klystron, 500kW net.

Dec 19 2007 02:43:07:533PM 1071219022 Greg Wallace Fizzle.

Dec 19 2007 03:43:07:447PM 1071219026 Greg Wallace Clean shot with coupling getting a bit noisier after the gas turns on. Seems like we need more gas so we'll increase the fill to 7psi on the NINJA. Keeping the LH power and plasma the same.

Dec 19 2007 04:21:22:400PM 1071219026 Greg Wallace Clean shot with coupling getting a bit noisier after the gas turns on. Seems like we need more gas so we'll increase the fill to 7psi on the NINJA. Keeping the LH power and plasma the same.

Dec 19 2007 04:24:11:810PM 1071219029 Greg Wallace Puff seems to help on top of grill but hurt on bottom. Next shot will turn off B side (bottom) capillary, keeping the LH power and plasma shape the same.

Dec 20 2007 02:07:57:687PM 1071219030 Greg Wallace This shot had puffing only on the top of the grill. The reflections on the top of the grill come down from ~30% to ~20%, although on the bottom they rise from ~20% to ~30%.

Dec 20 2007 02:09:00:313PM 1071219031 Greg Wallace Plasma disrupts at 1s. Prior to disruption the gas seems to make the reflections quieter although not reduce the magnitude.

Dec 19 2007 05:09:47:530PM 1071219032 Greg Wallace Another good shot. Effect of gas puffing in this shot is unclear since the reflections are relatively constant over the shot. This is the last shot of the day.

Physics Operator Comments

Dec 19 2007 09:30:04:163AM 1071219001 Earl Marmar load from 1071207027
import segment 1 from 1071218003 (20 msec prefill puff)

plasma
P_LH = 200 kW net, no perceptible change in Vloop

Dec 19 2007 09:55:24:140AM 1071219002 Earl Marmar no pcs changes

plasma
early disruption (.48)
problems with plasma control
large errors on efit reconstruction (chisq > 400)

Wolfe reports that BP25_BC flatlines shortly after breakdown; this one is used for both control and EFIT.

Dec 19 2007 10:18:50:963AM 1071219003 Earl Marmar 10 kA OH1 test, to see if the BP coil has recovered

Dec 19 2007 10:48:43:833AM 1071219004 Earl Marmar try for plasma

BP25_BC looks ok
plasma
disrupt .43 sec, looks like an injection
early marfe

Dec 19 2007 10:48:57:333AM 1071219005 Earl Marmar reduce segment 1 gas puff (after 30 msec)
tweak nl_04 programming in segment 2

plasma
full length shot

Dec 19 2007 11:37:36:887AM 1071219006 Earl Marmar no pcs changes

plasma, full length

Dec 19 2007 05:41:29:480PM 1071219007 Earl Marmar no pcs changes

plasma, full length

Dec 19 2007 11:38:06:057AM 1071219008 Earl Marmar no pcs changes

plasma, full length

Dec 19 2007 11:49:09:467AM 1071219009 Earl Marmar no pcs changes

plasma, full length

Dec 19 2007 12:06:57:757PM 1071219010 Earl Marmar no pcs changes

plasma, full length

Dec 19 2007 12:12:10:413PM 1071219011 Earl Marmar no pcs changes

plasma, full length
early hards
startup looing ratty

Dec 19 2007 12:42:22:877PM 1071219012 Earl Marmar EF4 20 A more negative prior to t=0 (now -1350 A)

plasma, full length
startup looks a bit better, still early hards

Dec 19 2007 12:42:38:423PM 1071219013 Earl Marmar no pcs changes

plasma, full length
early hards

Dec 19 2007 12:51:35:867PM 1071219014 Earl Marmar add 3 msec to prefill puff (now 23 msec)

hang during init, no power shot

Dec 19 2007 01:09:43:467PM 1071219015 Earl Marmar no additional pcs changes

plasma, full length
hesitation during early current rise, early hards

Dec 19 2007 01:21:41:300PM 1071219016 Earl Marmar add 2 msec to prefill puff (now 25 msec)

plasma, full length,
startup the same, early hards

Dec 19 2007 01:39:05:167PM 1071219017 Earl Marmar add 2 msec to prefill puff (now 27 msec)

plasma, full length
nice breakdown, no hards

Dec 19 2007 02:05:32:800PM 1071219018 Earl Marmar no pcs changes

plasma, full length

big bounce, worst early hards yet

Dec 19 2007 02:15:12:773PM 1071219019 Earl Marmar add 12 msec to prefill puff (now 39 msec) (cryopump should be cold)

import segment 3 from 1071218015, 0.8 MA upper single null
turn off segment 2
turn on segment 3

plasma
nice startup, but then hards come up in first .5 seconds
disrupt 1.05 seconds - LH grill spewing just before

Dec 19 2007 02:23:56:387PM 1071219020 Earl Marmar nl_04 target to 5e19

no EF3, dud

Dec 19 2007 02:39:31:703PM 1071219021 Earl Marmar no pcs changes

plasma, full length
early hards are better

Dec 19 2007 02:48:13:537PM 1071219022 Earl Marmar add 6 msec to prefill puff (now 45 msec)
nl_04 target to 4e19
tweak feedback gains for nl_04

fizzle (Ip/Bz too high early)

Dec 19 2007 02:59:37:150PM 1071219023 Earl Marmar prefill puff to 40 msec
ef4 20 A less negative (now -1320 A)

fizzle

Dec 19 2007 03:18:26:890PM 1071219024 Earl Marmar prefill puff to 50 msec

fizzle

Dec 19 2007 03:24:47:830PM 1071219025 Earl Marmar BR_0 offset to -.005T (from 0.000)

fizzle, late breakdown
(actually wanted -.0005T)

Dec 19 2007 03:38:13:180PM 1071219026 Earl Marmar BR_0 to -0.0005 (from -0.005)

plasma
1 bounce during startup
a lot of hards through most of the shot

Dec 19 2007 03:51:20:247PM 1071219027 Earl Marmar prefill puff to 70 msec

power supply dud, ef3 breaker pulled

Dec 19 2007 04:08:25:613PM 1071219028 Earl Marmar no pcs changes

plasma
bounce, runaways, disrupt at 0.36 seconds

Dec 19 2007 04:28:49:437PM 1071219029 Earl Marmar RCUR offset to 1500 (from 1000)

plasma
nice startup, no hards until LH

Dec 19 2007 04:35:15:610PM 1071219030 Earl Marmar no pcs changes

plasma
1 bounce, lots of hards
disrupt near end of flattop

Dec 19 2007 04:51:47:367PM 1071219031 Earl Marmar RCUR offset to 2000 (from 1500)
prefill puff to 80 msec (from 70 msec)

nl_04 target to 3.5e19

plasma
nice startup
hards during LH only
disrupt during LH pulse (1.0 second)

Dec 19 2007 05:39:03:447PM 1071219032 Earl Marmar LPI gate valve enabled

plasma, full length
good startup (no bounce, but close to being squashed on the inner wall)
got the pellet at 1.7 seconds

G, G, T A F.

Engineering Operator Comments

Shot Time Type Status Comment

1 09:10:27:140AM Plasma Ok

2 09:28:17:117AM Plasma Bad OH1 self powered

3 10:18:21:340AM Test Ok OH1 10KA FWD Bridge

4 10:30:40:233AM Plasma Bad OH1 self powered

5 10:46:59:037AM Plasma Ok

6 11:00:36:183AM Plasma Ok

7 11:14:52:500AM Plasma Ok

8 11:28:31:223AM Plasma Ok

9 11:42:34:323AM Plasma Ok

10 11:55:25:343AM Plasma Ok

11 12:07:55:927PM Plasma Ok

12 12:20:52:057PM Plasma Ok

13 12:33:21:517PM Plasma Ok

14 12:46:00:490PM Plasma Bad lost pcdaqeng1, no power shot

15 01:02:02:027PM Plasma Ok

16 01:14:38:720PM Plasma Ok EF3 breaker pulled after shot

17 01:28:16:380PM Plasma Ok

18 01:40:59:947PM Plasma Ok

19 02:01:27:330PM Plasma Ok

20 02:15:38:587PM Plasma Bad EF3 breaker opened in pulse

21 02:28:13:717PM Plasma Ok

22 02:41:13:987PM Plasma Ok

23 02:53:49:490PM Plasma Ok

24 03:06:24:543PM Plasma Ok

25 03:18:52:173PM Plasma Ok

26 03:31:32:710PM Plasma Ok

27 03:44:09:137PM Plasma Ok

28 03:59:52:987PM Plasma Ok

29 04:15:06:133PM Plasma Ok

30 04:29:36:000PM Plasma Ok

31 04:42:08:207PM Test Bad

32 04:57:54:587PM Plasma Ok

System Availability

Dec 19 2007 09:10:09:280AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD yes Fully operational Mar 28 2007 09:19PM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes vertical 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 Bravenec Beam Emission Spectroscopy bravenec
Bolometers yes Diode 2pi working fine, foil 2pi still in the same poor condition as last campaign. Outboard miidplane AXUV fine. Midplane foils working fine, but need calibration. 2D AXUV arrays are being digitized but need further debugging and calibration. Dec 09 2007 06:51PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no First Boronization 5/9/07 Bottle has been removed from the cell Sep 14 2007 12:42PM (dekow) Jim Irby Boronization dekow,irby
CNPA yes Single channel CNPA available as of 12/1707 Dec 17 2007 05:48PM (parker) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Cryopump is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The 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 Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan
D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Nov 26 2007 04:23PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes optics repaired, camera re-installed, and view has been re-calibrated Nov 27 2007 09:54AM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Nov 20 2007 10:47PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no Nov 20 2007 10:47PM (granetz) Robert Granetz Diagnostic Neutral Beam beals,granetz
FRC-ECE yes Chs 17-32 working - low freq. mixer being repaired Nov 26 2007 11:41AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge is operational and calibrated against G-side MKS on shot#1071127002 Nov 27 2007 01:25PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes Available, but Chs 1, 9 still have preamp problems. Dec 18 2007 09:21AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Detectors cooled 12/5. Most channels operational. Dec 05 2007 09:30AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Neither the Xpt-view nor the midplane-view camera is operational. Nov 26 2007 04:25PM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes Should be operational for the FY08 campaign Nov 27 2007 09:54AM (marmar) Earl Marmar H/D Ratio marmar
Hirex Jr yes Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr no Be Window has a leak and so the gate valve is closed Nov 23 2007 12:50PM (ince) John Rice High Resolution X-Ray ince,rice
HXR yes Something might be wrong with channel 26; all others working fine. Mar 23 2007 10:43AM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes available (quarter-wave transformer for pre-matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes available (with FFT for automatical matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes normally in [0,pi,pi,0] phase for heating. current drive phase available if requested. Dec 11 2007 09:03AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid yes Body I Fault Circuits Repaired and tested. High power tests completed Dec 05 2007 06:40PM (dterry) Ron Parker Lower Hybrid dterry,parker
LPI no Oct 12 2007 12:41PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane 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 Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Working fine. Nov 29 2007 01:36PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Working, low speed to start out. Dec 04 2007 09:27AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes E-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 LaBombard Baratron pressure gauges labombard
MLP no Initial 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 LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no We are basically awaiting the DNB & its new aperture. MSE itself is OK. Two of 10 channels are dead. Nov 20 2007 08:26PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Voltage 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 Fiore Neutron Detectors fiore
Neuts and Hards yes calibration unchanged from 2007 campaign Dec 04 2007 08:56PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. Nov 26 2007 04:26PM (terry) Brian LaBombard NINJA gas puff labombard,terry
PCI no Both CO2 and HeNe Lasers are disabled----- safe for machine entry. Sep 14 2007 03:21PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes All gauges except B_DivL are operating Nov 27 2007 01:31PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Nov 26 2007 04:27PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Probe Array - ISD yes Operational Nov 27 2007 01:40PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational Nov 27 2007 01:40PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes 50, 60, 75 and 88GHz channels are connected and being tested for the campaign Dec 18 2007 10:28AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Operational, but needs to be checked with plasma. Nov 27 2007 01:45PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes FSP is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes A- and K-port WASP electrodes have been replaced/tested. Nov 27 2007 01:44PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes CO2 Laser is on --- initial alignment complete Nov 16 2007 01:23PM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core no System is being reassembled during pre-physics phase of campaign. Lasers are operable and coarsely aligned. Collection optics are in place. Data acquisition is being tested. Full operation expected after Jan 1. Dec 19 2007 09:01AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma
TS - Edge no See entry for core TS Dec 19 2007 09:02AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO no cPCI digitzer problems being debugged Dec 09 2007 06:49PM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Dec 19 2007 11:25:47:160AM

NINJA D2 puff at inner wall (B16) trigger at 1.35 for 150 ms. He 1+ CX 468 nm

Dec 19 2007 11:28:12:473AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD yes Fully operational Mar 28 2007 09:19PM (sears) Joe Snipes Active MHD Antenna sears,snipes
BES yes vertical 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 Bravenec Beam Emission Spectroscopy bravenec
Bolometers yes Diode 2pi working fine, foil 2pi still in the same poor condition as last campaign. Outboard miidplane AXUV fine. Midplane foils working fine, but need calibration. 2D AXUV arrays are being digitized but need further debugging and calibration. Dec 09 2007 06:51PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization no First Boronization 5/9/07 Bottle has been removed from the cell Sep 14 2007 12:42PM (dekow) Jim Irby Boronization dekow,irby
CNPA yes Single channel CNPA available as of 12/1707 Dec 17 2007 05:48PM (parker) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Cryopump is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard Upper Divertor Cryopump irby,labombard
CXRS yes The 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 Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan
D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Nov 26 2007 04:23PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes optics repaired, camera re-installed, and view has been re-calibrated Nov 27 2007 09:54AM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Nov 20 2007 10:47PM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 06 2007 10:50AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 06 2007 10:51AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DNB no Nov 20 2007 10:47PM (granetz) Robert Granetz Diagnostic Neutral Beam beals,granetz
FRC-ECE yes Chs 17-32 working - low freq. mixer being repaired Nov 26 2007 11:41AM (phillips) Perry Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes Gauge is operational and calibrated against G-side MKS on shot#1071127002 Nov 27 2007 01:25PM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes Available, but Chs 1, 9 still have preamp problems. Dec 18 2007 09:21AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Detectors cooled 12/5. Most channels operational. Dec 05 2007 09:30AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI no Neither the Xpt-view nor the midplane-view camera is operational. Nov 26 2007 04:25PM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes Should be operational for the FY08 campaign Nov 27 2007 09:54AM (marmar) Earl Marmar H/D Ratio marmar
Hirex Jr yes Mar 06 2007 08:59AM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr no Be Window has a leak and so the gate valve is closed Nov 23 2007 12:50PM (ince) John Rice High Resolution X-Ray ince,rice
HXR yes Something might be wrong with channel 26; all others working fine. Mar 23 2007 10:43AM (schmidt) Ron Parker Hard X-Ray Array parker,schmidt
ICRF D-Antenna yes available (quarter-wave transformer for pre-matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes available (with FFT for automatical matching) Dec 11 2007 09:01AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes normally in [0,pi,pi,0] phase for heating. current drive phase available if requested. Dec 11 2007 09:03AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid yes Body I Fault Circuits Repaired and tested. High power tests completed Dec 05 2007 06:40PM (dterry) Ron Parker Lower Hybrid dterry,parker
LPI no Oct 12 2007 12:41PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane 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 Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Working fine. Nov 29 2007 01:36PM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Working, low speed to start out. Dec 04 2007 09:27AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes E-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 LaBombard Baratron pressure gauges labombard
MLP no Initial 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 LaBombard Mirror Langmuir Probe Electronics System labombard
MSE no We are basically awaiting the DNB & its new aperture. MSE itself is OK. Two of 10 channels are dead. Nov 20 2007 08:26PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Voltage 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 Fiore Neutron Detectors fiore
Neuts and Hards yes calibration unchanged from 2007 campaign Dec 04 2007 08:56PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. Nov 26 2007 04:26PM (terry) Brian LaBombard NINJA gas puff labombard,terry
PCI no Both CO2 and HeNe Lasers are disabled----- safe for machine entry. Sep 14 2007 03:21PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes All gauges except B_DivL are operating Nov 27 2007 01:31PM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Nov 26 2007 04:27PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Safe for Machine Entry Sep 14 2007 12:17PM (irby) Jim Irby C-Mod Polarimeter irby
Probe Array - ISD yes Operational Nov 27 2007 01:40PM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational Nov 27 2007 01:40PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes Operational Nov 27 2007 01:41PM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes 50, 60, 75 and 88GHz channels are connected and being tested for the campaign Dec 18 2007 10:28AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Operational, but needs to be checked with plasma. Nov 27 2007 01:45PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes FSP is operational Dec 11 2007 10:13AM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes A- and K-port WASP electrodes have been replaced/tested. Nov 27 2007 01:44PM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes CO2 Laser is on --- initial alignment complete Nov 16 2007 01:23PM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core no System is being reassembled during pre-physics phase of campaign. Lasers are operable and coarsely aligned. Collection optics are in place. Data acquisition is being tested. Full operation expected after Jan 1. Dec 19 2007 09:01AM (jwhughes) Jerry Hughes Core Thomson scattering jwhughes,yma
TS - Edge no See entry for core TS Dec 19 2007 09:02AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jwhughes,yma
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (agraf) Alex Graf Visible Spectrometer agraf
XTOMO no cPCI digitzer problems being debugged Dec 09 2007 06:49PM (mlreinke) Bob Granetz X-Ray Tomography granetz,mlreinke

Session Leader Comments
Dec 19 2007 09:26:35:803AM	1071219001	Greg Wallace	LH shot ran clean at ~40kW per klystron. Some strange behavior on the setpoints for the LH system, Atma is investigating. NINJA fired at 1.2s, hit the plasma around 1.35s on the LH camera view. Small density increase at LH grill visible as well as small increase in nl_04.
Dec 19 2007 09:47:55:343AM	1071219002	Greg Wallace	Disruption at 0.48s.
Dec 19 2007 10:38:33:220AM	1071219003	Greg Wallace	Test shot, no plasma.
Dec 19 2007 10:38:20:753AM	1071219004	Greg Wallace	Another disruption.
Dec 19 2007 11:00:36:057AM	1071219005	Greg Wallace	Full length plasma, LH ran clean although still putting out much less than the demand power. Will try one more time to get the system to work properly before going on to gas puffing experiments.
Dec 19 2007 11:12:09:030AM	1071219006	Greg Wallace	Funny behavior on 6B again caused some trips, but the klystrons are now giving the demanded power. Next shot will decrease to 30kW per klystron and fire NINJA at 700ms, which should cause the density to rise around 850ms.
Dec 19 2007 11:23:02:130AM	1071219007	Greg Wallace	Seems like the gas puffing works at 30kW per klystron!!!! The LH reflection coeffecient goes down significantly from ~35% to ~25% when the gas hits the plasma. The effect is more noticable on the top half of the grill. No signs of arcing on the LH camera. Next shot will keep the gas the same and increase LH power to 40kW per klystron.
Dec 19 2007 11:38:21:040AM	1071219008	Greg Wallace	It still works! No arcing on the vacuum side visible on camera, and the reflections decrease during the puff. Unfortunately nl_04 increases from 5.5-7e19 during the LH pulse. Next shot will turn down the puff from 5psi to 3psi and increase the power to 50kW per klystron.
Dec 19 2007 11:51:22:920AM	1071219009	Greg Wallace	No signs of arcing on the vacuum side. Still a significant effect on the reflections at 3.6psi with less increase in nl_04. Will increase to 60kW per klystron and move NINJA to 650ms firing for the next shot.
Dec 19 2007 12:02:59:783PM	1071219010	Greg Wallace	Reflections get "quieter" although less reduction in overall magnitude. Next shot will increase power to 70kW per klystron.
Dec 19 2007 12:16:46:697PM	1071219011	Greg Wallace	Not much decrease in reflections at 3.6psi. Will keep power at 70kW per klystron and increase fill to 5.6psi.
Dec 19 2007 12:32:26:610PM	1071219012	Greg Wallace	NINJA pressure increase didn't take. Next shot will keep power at 70kW and increase to 5.6psi for real.
Dec 19 2007 12:40:28:520PM	1071219013	Greg Wallace	Significant decrease in reflection, although nl_04 rose from 5.5 to 6.5e19. No arcing visible on the LH camera. Next shot will increase to 85kW per klystron.
Dec 19 2007 01:09:49:717PM	1071219015	Greg Wallace	Decrease in reflections during gas puffing is getting less obvious as the power increases. Still no sign of breakdown on the antenna. Will increase to 100kW per klystron and 50kV beam voltage.
Dec 19 2007 01:42:12:557PM	1071219017	Greg Wallace	Shot ran clean, still no arcing on the LH camera. Will increase to 135kW per klystron.
Dec 19 2007 01:47:33:060PM	1071219018	Greg Wallace	Effect of the puffing seems to be decreasing with power still, although still no arcing on vacuum side at 700kW net. Will change to upper null with cryopump on to see if we can decrease line averaged density while still keeping reflections down.
Dec 19 2007 02:12:26:570PM	1071219019	Greg Wallace	Looks like some sparking on the LH grill caused the disruption. For the next shot we will: Decrease LH power to 100kW per klyston Decrease programmed density from 8 to 5e19 on nl_04 Turn off LH gas puff to get a baseline Saw some glowing after the disruption in the normal place between the C and D rows of the LH coupler. Not surprising given the very high Isat on the LH probes.
Dec 19 2007 03:22:17:660PM	1071219021	Greg Wallace	LH ran clean with no gas puffing. Grill density still quite high (>1e18) despite no puff. Will try decreasing nl_04 to 4e19 while turning puff back on and keeping power level at 100kW/klystron, 500kW net.
Dec 19 2007 02:43:07:533PM	1071219022	Greg Wallace	Fizzle.
Dec 19 2007 03:43:07:447PM	1071219026	Greg Wallace	Clean shot with coupling getting a bit noisier after the gas turns on. Seems like we need more gas so we'll increase the fill to 7psi on the NINJA. Keeping the LH power and plasma the same.
Dec 19 2007 04:21:22:400PM	1071219026	Greg Wallace	Clean shot with coupling getting a bit noisier after the gas turns on. Seems like we need more gas so we'll increase the fill to 7psi on the NINJA. Keeping the LH power and plasma the same.
Dec 19 2007 04:24:11:810PM	1071219029	Greg Wallace	Puff seems to help on top of grill but hurt on bottom. Next shot will turn off B side (bottom) capillary, keeping the LH power and plasma shape the same.
Dec 20 2007 02:07:57:687PM	1071219030	Greg Wallace	This shot had puffing only on the top of the grill. The reflections on the top of the grill come down from ~30% to ~20%, although on the bottom they rise from ~20% to ~30%.
Dec 20 2007 02:09:00:313PM	1071219031	Greg Wallace	Plasma disrupts at 1s. Prior to disruption the gas seems to make the reflections quieter although not reduce the magnitude.
Dec 19 2007 05:09:47:530PM	1071219032	Greg Wallace	Another good shot. Effect of gas puffing in this shot is unclear since the reflections are relatively constant over the shot. This is the last shot of the day.

Physics Operator Comments
Dec 19 2007 09:30:04:163AM	1071219001	Earl Marmar	load from 1071207027 import segment 1 from 1071218003 (20 msec prefill puff) plasma P_LH = 200 kW net, no perceptible change in Vloop
Dec 19 2007 09:55:24:140AM	1071219002	Earl Marmar	no pcs changes plasma early disruption (.48) problems with plasma control large errors on efit reconstruction (chisq > 400) Wolfe reports that BP25_BC flatlines shortly after breakdown; this one is used for both control and EFIT.
Dec 19 2007 10:18:50:963AM	1071219003	Earl Marmar	10 kA OH1 test, to see if the BP coil has recovered
Dec 19 2007 10:48:43:833AM	1071219004	Earl Marmar	try for plasma BP25_BC looks ok plasma disrupt .43 sec, looks like an injection early marfe
Dec 19 2007 10:48:57:333AM	1071219005	Earl Marmar	reduce segment 1 gas puff (after 30 msec) tweak nl_04 programming in segment 2 plasma full length shot
Dec 19 2007 11:37:36:887AM	1071219006	Earl Marmar	no pcs changes plasma, full length
Dec 19 2007 05:41:29:480PM	1071219007	Earl Marmar	no pcs changes plasma, full length
Dec 19 2007 11:38:06:057AM	1071219008	Earl Marmar	no pcs changes plasma, full length
Dec 19 2007 11:49:09:467AM	1071219009	Earl Marmar	no pcs changes plasma, full length
Dec 19 2007 12:06:57:757PM	1071219010	Earl Marmar	no pcs changes plasma, full length
Dec 19 2007 12:12:10:413PM	1071219011	Earl Marmar	no pcs changes plasma, full length early hards startup looing ratty
Dec 19 2007 12:42:22:877PM	1071219012	Earl Marmar	EF4 20 A more negative prior to t=0 (now -1350 A) plasma, full length startup looks a bit better, still early hards
Dec 19 2007 12:42:38:423PM	1071219013	Earl Marmar	no pcs changes plasma, full length early hards
Dec 19 2007 12:51:35:867PM	1071219014	Earl Marmar	add 3 msec to prefill puff (now 23 msec) hang during init, no power shot
Dec 19 2007 01:09:43:467PM	1071219015	Earl Marmar	no additional pcs changes plasma, full length hesitation during early current rise, early hards
Dec 19 2007 01:21:41:300PM	1071219016	Earl Marmar	add 2 msec to prefill puff (now 25 msec) plasma, full length, startup the same, early hards
Dec 19 2007 01:39:05:167PM	1071219017	Earl Marmar	add 2 msec to prefill puff (now 27 msec) plasma, full length nice breakdown, no hards
Dec 19 2007 02:05:32:800PM	1071219018	Earl Marmar	no pcs changes plasma, full length big bounce, worst early hards yet
Dec 19 2007 02:15:12:773PM	1071219019	Earl Marmar	add 12 msec to prefill puff (now 39 msec) (cryopump should be cold) import segment 3 from 1071218015, 0.8 MA upper single null turn off segment 2 turn on segment 3 plasma nice startup, but then hards come up in first .5 seconds disrupt 1.05 seconds - LH grill spewing just before
Dec 19 2007 02:23:56:387PM	1071219020	Earl Marmar	nl_04 target to 5e19 no EF3, dud
Dec 19 2007 02:39:31:703PM	1071219021	Earl Marmar	no pcs changes plasma, full length early hards are better
Dec 19 2007 02:48:13:537PM	1071219022	Earl Marmar	add 6 msec to prefill puff (now 45 msec) nl_04 target to 4e19 tweak feedback gains for nl_04 fizzle (Ip/Bz too high early)
Dec 19 2007 02:59:37:150PM	1071219023	Earl Marmar	prefill puff to 40 msec ef4 20 A less negative (now -1320 A) fizzle
Dec 19 2007 03:18:26:890PM	1071219024	Earl Marmar	prefill puff to 50 msec fizzle
Dec 19 2007 03:24:47:830PM	1071219025	Earl Marmar	BR_0 offset to -.005T (from 0.000) fizzle, late breakdown (actually wanted -.0005T)
Dec 19 2007 03:38:13:180PM	1071219026	Earl Marmar	BR_0 to -0.0005 (from -0.005) plasma 1 bounce during startup a lot of hards through most of the shot
Dec 19 2007 03:51:20:247PM	1071219027	Earl Marmar	prefill puff to 70 msec power supply dud, ef3 breaker pulled
Dec 19 2007 04:08:25:613PM	1071219028	Earl Marmar	no pcs changes plasma bounce, runaways, disrupt at 0.36 seconds
Dec 19 2007 04:28:49:437PM	1071219029	Earl Marmar	RCUR offset to 1500 (from 1000) plasma nice startup, no hards until LH
Dec 19 2007 04:35:15:610PM	1071219030	Earl Marmar	no pcs changes plasma 1 bounce, lots of hards disrupt near end of flattop
Dec 19 2007 04:51:47:367PM	1071219031	Earl Marmar	RCUR offset to 2000 (from 1500) prefill puff to 80 msec (from 70 msec) nl_04 target to 3.5e19 plasma nice startup hards during LH only disrupt during LH pulse (1.0 second)
Dec 19 2007 05:39:03:447PM	1071219032	Earl Marmar	LPI gate valve enabled plasma, full length good startup (no bounce, but close to being squashed on the inner wall) got the pellet at 1.7 seconds G, G, T A F.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:10:27:140AM	Plasma	Ok
2	09:28:17:117AM	Plasma	Bad	OH1 self powered
3	10:18:21:340AM	Test	Ok	OH1 10KA FWD Bridge
4	10:30:40:233AM	Plasma	Bad	OH1 self powered
5	10:46:59:037AM	Plasma	Ok
6	11:00:36:183AM	Plasma	Ok
7	11:14:52:500AM	Plasma	Ok
8	11:28:31:223AM	Plasma	Ok
9	11:42:34:323AM	Plasma	Ok
10	11:55:25:343AM	Plasma	Ok
11	12:07:55:927PM	Plasma	Ok
12	12:20:52:057PM	Plasma	Ok
13	12:33:21:517PM	Plasma	Ok
14	12:46:00:490PM	Plasma	Bad	lost pcdaqeng1, no power shot
15	01:02:02:027PM	Plasma	Ok
16	01:14:38:720PM	Plasma	Ok	EF3 breaker pulled after shot
17	01:28:16:380PM	Plasma	Ok
18	01:40:59:947PM	Plasma	Ok
19	02:01:27:330PM	Plasma	Ok
20	02:15:38:587PM	Plasma	Bad	EF3 breaker opened in pulse
21	02:28:13:717PM	Plasma	Ok
22	02:41:13:987PM	Plasma	Ok
23	02:53:49:490PM	Plasma	Ok
24	03:06:24:543PM	Plasma	Ok
25	03:18:52:173PM	Plasma	Ok
26	03:31:32:710PM	Plasma	Ok
27	03:44:09:137PM	Plasma	Ok
28	03:59:52:987PM	Plasma	Ok
29	04:15:06:133PM	Plasma	Ok
30	04:29:36:000PM	Plasma	Ok
31	04:42:08:207PM	Test	Bad
32	04:57:54:587PM	Plasma	Ok