Alcator C-Mod Run 1070717 Information

Miniproposals

Miniproposal: 298a

Date Filed: 5/20/2002

Title: C-Mod Plasma Startup

First Author: Jim Irby

Session Leader: Steve Wolfe (shots 1-16)

Operators
Session leader(s):	Steve Wolfe
Physics operator(s):
Engineering operator(s):	Bill Cochran

Engineering Operator Run Comment
Reverse Field Power System Tests

Session Leader Plans

Entered: Jul 17 2007 08:28:43:950AM

Author: Steve Wolfe

Session Leader plan for plasma startup portion of Tuesday, July 17, 2007 - Reverse field startup MP#298a C-Mod startup SL: wolfe PO: Hutch The main part of today's run will be power system checkout following the reversal of the bus work. A 5-hour boronization is scheduled for the afternoon. In between, we will try to get reverse field startup and control ready for tomorrow's run. Power tests are scheduled to begin at 09:00 and estimated to take 4 hours. Nominal end time for plasma tests is 15:00, with possibility of extending to 16:00 if needed. Plan: ------ During power tests, monitor the magnetics and bus currents to verify the bus configuration. Monitor the DPCS outputs (with PLC power supply control) to verify correct polarity on the demands. For the plasma startup tests, the starting condition will be the shot designated for tomorrow's run, 1070614024, modified for reverse field operation. Note that this shot uses Segment 3 "1.0MA Upper Null". Engineering should set Power systems as on 1070614024 EXCEPT: Acoil in reverse configuration: -Dtop +Dbot +Jtop -Jtop Gas system 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) NINJA as is, disabled Enable the following gate valves, ssuming no vacuum problems: ECE, VUV, DNB, Z-bolo shutters. Torvac setup: Gate valves open Physop PCS setup procedure is given in the note under topic HYBRID for 1070717. The goal will be to get a reasonably robust startup and verify control into the active segment. Along the way we'll be verifying that the correct fizzle sequence has been loaded (dpcs_fizzle source_shot=1060517007) to maintain +150kA and double swing the OH's to -15kA. If we get that far, we're done. If not, Earl gets to deal with it tomorrow.

Physics Operators Plans

Session Leader Summaries

Entered: Jul 17 2007 02:25:11:017PM

Author: Steve Wolfe

The power tests were completed well ahead of schedule, by about 11AM. Plasma attempts started with #14 and proceeded Dud, Fizzle, Plasma After the successful plasma on #16 we declared victory and stopped for the day. The shot was based on the starting shot for tomorrow, 1070614024. Note that the NL04 feedback was disabled for today's shot. The tweaks were to increase the pre-puff a little and make BR0 substantially more positive (started at -.003 and ended at +002.) The RCUR offset was left at +1000, and could possibly be decreased a little. TCI was not available because of an SF6 dump in the morning, so the shot was run with pre-programmed gas. Thomson indicated it was at 1e20 falling to 5e19/m^3. ECE was not on for #16, for unknown reasons. A successful mini-run, completed by noon.

Physics Operator Summaries

Entered: Jul 17 2007 12:13:10:083PM

Author: Ian Hutchinson

Abnormal field direction setup completed.

In addition to the flipping of coil current traces and the calling of
the B21 predictor with the new setting, it proved necessary for
startup to approximately reverse the Br offset from -3mT to +2mT. That
gave a full length plasma on shot 16.

This shot 16 has nl04 zeroed in segment 3 which needs to be restored
appropriately when the interferometer is operative.

Session Leader Comments

Jul 17 2007 09:22:51:387AM 1070717001 Steve Wolfe
Shot#1 EFC test under PLC control. That seemed to work. However, it looks like the fizzle sequence did the right thing, and it was before Ian changed it??

Jul 17 2007 09:29:40:927AM 1070717002 Steve Wolfe
Shot#2: EF2U power test looks ok. fizzle sequence seems to be in the right direction, I guess Ian had already loaded the new value before shot#1. Next: EF2L PLC test

Jul 17 2007 09:56:26:770AM 1070717003 Steve Wolfe
Shot#3: EF2L test looks ok. Next: A-coil test under hybrid control Draw a waveform in seg 1 and turn off seg3

Jul 17 2007 09:55:13:453AM 1070717004 Steve Wolfe
Shot#4 Next: A-coil test under hybrid control Draw a waveform in seg 1 and turn off seg3 That looks like PLC control. Straight up and straight down at 800A, on at -.2 off at +1.8sec Also, the waveform ends early, at 1.7. That was the fizzle detector coming in. Next: Move on to EF3

Jul 17 2007 10:08:46:797AM 1070717004 Steve Wolfe
Shot#4: The signs of the signals from the A-coil test on the locked mode loops match those from last year's test 1060517013. Magnitudes are about half, which is consistent since shot 13 had 1500A and this one 800. They seem to be hooked up correctly, I don't know that we need to re-test. Still need to confirm the B21_PROJ feedback

Jul 17 2007 10:01:47:323AM 1070717005 Steve Wolfe
Shot#5: EF3 test Looks ok.

Jul 17 2007 10:09:59:113AM 1070717006 Steve Wolfe
Shot#6: EF4 forward bridge test at 1000A Looks ok, field is positive.

Jul 17 2007 10:27:09:397AM 1070717008 Steve Wolfe
Shot#7: EF1U forward bridge test Shot#8: EF1L test, both look ok

Jul 17 2007 10:34:33:080AM 1070717009 Steve Wolfe
Shot#9: OH1 test, also looking at the demand from the B21_PROJ feedback. Actually, it shouldn't ask for anything because this is just forward bridge, and it will be in the fizzle segment anyway. Never mind. OH1 looks ok. Bz0 is negative. Moving on to OH2's

Jul 17 2007 10:44:36:090AM 1070717010 Steve Wolfe
Shot#10: OH2U test Looks ok, BR0 is negative, flux is positive. next OH2L

Jul 17 2007 10:54:19:193AM 1070717011 Steve Wolfe
Shot#11: OH2L test Looks ok, although there is a small overshoot on the bus current at the start of the pulse that did not show up on the upper. Field direction looks right. Next: TF test

Jul 17 2007 11:04:56:880AM 1070717012 Steve Wolfe
Shot#12: TF test (there will be two of these) 50kA TF test. Looks ok.

Jul 17 2007 11:16:55:237AM 1070717013 Steve Wolfe
Shot#13: 100kA TF test Got 100kA. After Bill checks the bus, we'll be ready to try for plasma.

Jul 17 2007 11:37:56:777AM 1070717014 Steve Wolfe
Shot#14: First plasma attempt. TCI is dead due to an SF6 incident this morning. Ian is turning off NL04 feedback and will use pre-programmed PG3. Dud. Fill is pretty low, .035mTorr BR looks negative (more so than recent normal field shots) RCUR looks funny, way inside. OH2 currents look too far apart, I think the BR needs a big change.

Jul 17 2007 11:51:00:480AM 1070717015 Steve Wolfe
Shot#15: Second plasma attempt. Fizzle, that's the right direction I think Looks like it may get lost vertically; also moving in.

Jul 17 2007 12:00:45:880PM 1070717016 Steve Wolfe
Shot#16: Third plasma attempt. plasma full length, looks pretty low density. Upper null, Right gap is down to 5mm according to EFIT around .4sec, near crossover. I think we're done.

Physics Operator Comments

Jul 17 2007 09:54:07:047AM Ian Hutchinson Followed Wolfe's instructions on shot 1070717 to do all the flips and to
change the dpcs_fizzle source to 1060517007.

After Gary updates the B21 configuration, call the b21 predictor in segments
2-4.

Jul 17 2007 11:15:36:140AM Ian Hutchinson Set RCUR offset to -1000 from +1000.

Jul 17 2007 11:43:03:470AM 1070717014 Ian Hutchinson Set nl04 gain to zero because the interferometer is inoperative.
There seems to be a reasonable preprogrammed density level in the V of seg 3.
Try a full shot.

Dud.

For next shot.
Fill puff to 20ms from 15ms.
Br offset to 0 from -3mT.

Jul 17 2007 11:55:44:593AM 1070717015 Ian Hutchinson Fizzle.

Br offset to +2mT.

Jul 17 2007 12:03:09:523PM 1070717016 Ian Hutchinson Plasma to rampdown.
Seems to be a strong startup.

Jul 17 2007 12:08:07:670PM 1070717016 Ian Hutchinson Plasma to rampdown.
Seems to be a strong startup.

Engineering Operator Comments

Shot Time Type Status Comment

1 09:14:12:407AM Test Ok EFC Test

2 09:23:08:370AM Test Ok EF2U Test

3 09:34:15:727AM Test Ok EF2L Test

4 09:44:26:740AM Test Ok A-Coil Test PLC Control

5 09:56:12:457AM Test Ok EF3 PLC Test

6 10:04:31:480AM Test Ok EF4 Forward PLC test

7 10:13:13:617AM Test Ok EF1U Forward PLC Test

8 10:22:16:470AM Test Ok EF1L Forward PLC Test

9 10:30:44:950AM Test Ok OH1 Forward PLC Test

10 10:39:04:973AM Test Ok OH2U Forward PLC Test

11 10:50:06:800AM Test Ok OH2L Forward PLC Test

12 11:01:55:330AM Test Ok TF 50kA PLC Test

13 11:14:22:467AM Test Ok TF 100kA PLC Test

14 11:29:01:767AM Plasma Ok

15 11:41:25:030AM Plasma Ok

16 11:53:58:000AM Plasma Ok

System Availability

Jul 17 2007 09:13:44:470AM

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 2Pi 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 Reinke Bolometers hutch,mlreinke
Boronization yes First Boronization 5/9/07 May 10 2007 04:55PM (irby) Jim Irby Boronization dekow,irby
CNPA no Jan 14 2007 02:06PM Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes The 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 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=[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 Rowan Charge Exchange Spectroscopy bespam,blip,rachmcd,rowan
D Alpha yes \ha2_bright and \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 are available Mar 11 2007 10:28PM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa yes camera is re-installed, and view has been calibrated Feb 26 2007 03:28PM (marmar) Earl Marmar Visible Bremsstrahlung marmar
Disruption Mitigation no Jan 14 2007 02:02PM Bob 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,ldorf,terry
DNB yes All systems are operational, but as of 28 March 2007, the beam needs additional conditioning for full performance shots Mar 28 2007 09:36AM (beals) Bob Granetz Diagnostic Beam beals,granetz
FRC-ECE no Only 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 Phillips Heterodyne ECE-32 channels phillips
G-Side Ratiomatic yes The gauge is operational. Mar 30 2007 10:54AM (labombard) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
GPC yes Chs 1-8 operational. May 24 2007 08:40AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPC2 yes Most channels (except 1,5,8,10,17) operational. Jun 08 2007 08:29AM (hubbard) Amanda Hubbard ECE Polychromater hubbard,schmidt
GPI yes New 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 Terry Gas Puff Imaging terry,zweben
H/D yes spectral calibration needs to be checked, but system should be ready for the run Feb 26 2007 03:28PM (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 yes Storing Data, but profiles not yet available Apr 27 2007 01:20PM (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 80.5 MHz. Max power is about 1.5 MW Jun 20 2007 09:23AM (ylin) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes 80 MHz. Maxc power is about 1.5 MW Jun 20 2007 09:23AM (ylin) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes 78 MHz. dipole configuration. Using #4 transmitter only. Max power about 1.5 MW instead of 3 MW. Jun 20 2007 09:22AM (ylin) Steve Wukitch J-port antenna wukitch,ylin
Lower Hybrid no 6B Pressure window failed. Arcing in 6B, 8B,9B & 23B. May 04 2007 03:44PM (dterry) Ron Parker Lower Hybrid dterry,parker
LPI yes Apr 26 2007 08:35PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha yes Midplane 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 Reinke Lyman alpha cameras labombard,mlreinke
McPherson yes Working normally. Apr 19 2007 09:52AM (mlreinke) Jim Terry VUV Spectrometer mlreinke,terry
Michelson yes Operational. Mar 28 2007 08:33AM (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 (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 Scott Motional Stark Effect jinseok,sscott
Neutrons yes Both neutron systems are fully operational Apr 05 2007 11:19AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes operational Mar 21 2007 04:29PM (irby) Jim Irby X-Ray/Neutron Detector at K-Hor irby
NINJA yes All capillaries displayed by the NINJA_CONTROL GUI have been tested. NINJA puffed on 1070329009 (A-B limiter). Mar 29 2007 11:47AM (terry) Brian LaBombard NINJA gas puff labombard,terry
PCI yes The system is to be optimized. May 30 2007 01:12PM (lianglin) Miklos Porkolab Phase Contrast Imaging edlund,lianglin,ntsujii,porkolab
Penning Gauges yes 8 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 LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV (without an ND filter) are operational. Mar 27 2007 01:53PM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter no Retro shutter closed Mar 15 2007 11:00AM (irby) Jim Irby C-Mod Polarimeter irby
Probe Array - ISD yes Probes 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 Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes All 6 probes on the lower hybrid launcher (tungsten, 1.5 mm projection) are operational. Mar 13 2007 09:46PM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Probes 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 LaBombard Outer Lower Divertor Probe Array labombard
Probe Array - UDIV yes 14 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 LaBombard Upper Divertor Probe Array labombard
Reflectometer yes Today (1070713) is the first day with the new waveguides. 50, 60, 75 88, 88l,88u, 110 and the variable frequency channel are operational but still in testing. Jul 13 2007 08:40AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Perpendicular Mach probe head is installed. The drive is operational. Mar 15 2007 09:09PM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Perpendicular Mach probe head is installed. The probe drive is now operational. Mar 13 2007 09:51PM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP yes A-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 LaBombard Inner Wall Scanning Probe labombard,nsmick
TCI yes NL_04 at 71.04 cm from 3/9/07 calibration May 23 2007 07:38AM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes 2 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 Hughes Core Thomson scattering jwhughes
TS - Edge yes 2 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 Hughes Millimeter resolution edge Thomson scattering jwhughes
Vispec yes 350 and 670 nm, 4 spatial channels May 04 2007 01:02PM (agraf) Alex Graf Visible Spectrometer agraf

Session Leader Comments
Jul 17 2007 09:22:51:387AM	1070717001	Steve Wolfe	Shot#1 EFC test under PLC control. That seemed to work. However, it looks like the fizzle sequence did the right thing, and it was before Ian changed it??
Jul 17 2007 09:29:40:927AM	1070717002	Steve Wolfe	Shot#2: EF2U power test looks ok. fizzle sequence seems to be in the right direction, I guess Ian had already loaded the new value before shot#1. Next: EF2L PLC test
Jul 17 2007 09:56:26:770AM	1070717003	Steve Wolfe	Shot#3: EF2L test looks ok. Next: A-coil test under hybrid control Draw a waveform in seg 1 and turn off seg3
Jul 17 2007 09:55:13:453AM	1070717004	Steve Wolfe	Shot#4 Next: A-coil test under hybrid control Draw a waveform in seg 1 and turn off seg3 That looks like PLC control. Straight up and straight down at 800A, on at -.2 off at +1.8sec Also, the waveform ends early, at 1.7. That was the fizzle detector coming in. Next: Move on to EF3
Jul 17 2007 10:08:46:797AM	1070717004	Steve Wolfe	Shot#4: The signs of the signals from the A-coil test on the locked mode loops match those from last year's test 1060517013. Magnitudes are about half, which is consistent since shot 13 had 1500A and this one 800. They seem to be hooked up correctly, I don't know that we need to re-test. Still need to confirm the B21_PROJ feedback
Jul 17 2007 10:01:47:323AM	1070717005	Steve Wolfe	Shot#5: EF3 test Looks ok.
Jul 17 2007 10:09:59:113AM	1070717006	Steve Wolfe	Shot#6: EF4 forward bridge test at 1000A Looks ok, field is positive.
Jul 17 2007 10:27:09:397AM	1070717008	Steve Wolfe	Shot#7: EF1U forward bridge test Shot#8: EF1L test, both look ok
Jul 17 2007 10:34:33:080AM	1070717009	Steve Wolfe	Shot#9: OH1 test, also looking at the demand from the B21_PROJ feedback. Actually, it shouldn't ask for anything because this is just forward bridge, and it will be in the fizzle segment anyway. Never mind. OH1 looks ok. Bz0 is negative. Moving on to OH2's
Jul 17 2007 10:44:36:090AM	1070717010	Steve Wolfe	Shot#10: OH2U test Looks ok, BR0 is negative, flux is positive. next OH2L
Jul 17 2007 10:54:19:193AM	1070717011	Steve Wolfe	Shot#11: OH2L test Looks ok, although there is a small overshoot on the bus current at the start of the pulse that did not show up on the upper. Field direction looks right. Next: TF test
Jul 17 2007 11:04:56:880AM	1070717012	Steve Wolfe	Shot#12: TF test (there will be two of these) 50kA TF test. Looks ok.
Jul 17 2007 11:16:55:237AM	1070717013	Steve Wolfe	Shot#13: 100kA TF test Got 100kA. After Bill checks the bus, we'll be ready to try for plasma.
Jul 17 2007 11:37:56:777AM	1070717014	Steve Wolfe	Shot#14: First plasma attempt. TCI is dead due to an SF6 incident this morning. Ian is turning off NL04 feedback and will use pre-programmed PG3. Dud. Fill is pretty low, .035mTorr BR looks negative (more so than recent normal field shots) RCUR looks funny, way inside. OH2 currents look too far apart, I think the BR needs a big change.
Jul 17 2007 11:51:00:480AM	1070717015	Steve Wolfe	Shot#15: Second plasma attempt. Fizzle, that's the right direction I think Looks like it may get lost vertically; also moving in.
Jul 17 2007 12:00:45:880PM	1070717016	Steve Wolfe	Shot#16: Third plasma attempt. plasma full length, looks pretty low density. Upper null, Right gap is down to 5mm according to EFIT around .4sec, near crossover. I think we're done.

Physics Operator Comments
Jul 17 2007 09:54:07:047AM		Ian Hutchinson	Followed Wolfe's instructions on shot 1070717 to do all the flips and to change the dpcs_fizzle source to 1060517007. After Gary updates the B21 configuration, call the b21 predictor in segments 2-4.
Jul 17 2007 11:15:36:140AM		Ian Hutchinson	Set RCUR offset to -1000 from +1000.
Jul 17 2007 11:43:03:470AM	1070717014	Ian Hutchinson	Set nl04 gain to zero because the interferometer is inoperative. There seems to be a reasonable preprogrammed density level in the V of seg 3. Try a full shot. Dud. For next shot. Fill puff to 20ms from 15ms. Br offset to 0 from -3mT.
Jul 17 2007 11:55:44:593AM	1070717015	Ian Hutchinson	Fizzle. Br offset to +2mT.
Jul 17 2007 12:03:09:523PM	1070717016	Ian Hutchinson	Plasma to rampdown. Seems to be a strong startup.
Jul 17 2007 12:08:07:670PM	1070717016	Ian Hutchinson	Plasma to rampdown. Seems to be a strong startup.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:14:12:407AM	Test	Ok	EFC Test
2	09:23:08:370AM	Test	Ok	EF2U Test
3	09:34:15:727AM	Test	Ok	EF2L Test
4	09:44:26:740AM	Test	Ok	A-Coil Test PLC Control
5	09:56:12:457AM	Test	Ok	EF3 PLC Test
6	10:04:31:480AM	Test	Ok	EF4 Forward PLC test
7	10:13:13:617AM	Test	Ok	EF1U Forward PLC Test
8	10:22:16:470AM	Test	Ok	EF1L Forward PLC Test
9	10:30:44:950AM	Test	Ok	OH1 Forward PLC Test
10	10:39:04:973AM	Test	Ok	OH2U Forward PLC Test
11	10:50:06:800AM	Test	Ok	OH2L Forward PLC Test
12	11:01:55:330AM	Test	Ok	TF 50kA PLC Test
13	11:14:22:467AM	Test	Ok	TF 100kA PLC Test
14	11:29:01:767AM	Plasma	Ok
15	11:41:25:030AM	Plasma	Ok
16	11:53:58:000AM	Plasma	Ok