| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Dennis Whyte |
| Physics operator(s): | Bill Rowan |
| Engineering operator(s): | Andy Pfeiffer,Bill Cochran,Ed Fitzgerald |
| Engineering Operator Run Comment |
| automatically entered by signon - please replace with real comment |
| Session Leader Plans |
| Entered: Feb 2 2010 04:53:15:220PM |
| Author: Dennis Whyte |
| MP 419
Wall pumping measurements with cryopumping Purpose: Ascertain the differences in wall pumping rates and retention dynamics when using the upper cryopump as compared to shots without cryopumping. Background: A large set of experiments have been performed on wall pumping (fuel retention) using the static particle balance method. That experimental campaign used repeated discharges with no disruptions, and methodically changed plasma conditions to see the effect on shot-averaged retention. These experiments showed retention scaled proportional to incident ion fluence and was likely occurring at divertor surfaces which were primarily cleaned of B layers. At the same time, analysis of previous experiments that tested the upper cryopump showed that most often the retention rate during flattop, diverted stages was ~zero, in apparent contradiction to the physics interpretation of the static experiments. This experiment naturally repeats/extends the previous work in the retention MP419 to explore the effect of cryopumping on retention with the added information gained from dynamic particle balance. Approach ------------- Gate valves are closed throughout shot and until the cryopump regenerates (typically 4-5 minutes after shot). Repeated shots at fixed flattop density to gain information about repeatable retention rates and/or saturation of the retention. Will then scan (primarily) density, ssep or RF power to see effect on retention It is critical to avoid disruptions in rampdown since these are known to desorb large quantities of fuel from the wall, thus perturbing the experiment. Plasma startup and rampup are quite different with the cryo, so we'll use a more recent shot as our reference shot from I-mode experiments where cryo was used routinely. Experiment --------------- Cryopump ON or available entire run Gate valves closed until cryo regenerates after shot RGA bypass to assess gas content TF: ~5.4 Tesla (normal direction) Ip: ~0.8 - 1 MA (normal direction) Working gas: D2 Density: NL04 ~ 0.4 - 1.2 e20 Equilibrium condition: Reference shot (recent) 1091016029 (USN) BUT make change to flattop Ip = 0.8 MA, Bt = 5.4 T. NL04~0.6e20 for first shot RF: < 3 MW Diagnostics --------------- - Bypassed RGA - Verify long-time digitization of in-vessel pressure. Shot plan ------------- Ohmic -------- 1. Develop USN shape from reference, move strikepoint outboard ~2 cm to match pump entrance. - Ip = 0.8 MA, Bt = 5.4 T. NL04~0.6e20, SSEP ~ 1 cm, no RF - assure density control through startup and rampup - assure no disruptions in rampdown 2. ~4-5 repeat shots each at NL04~0.6e20 to assure that the retention is not changing from shot to shot. 3. Repeat x2-3 at NL04 ~ 0.9e20 4. Repeat x2-3 at NL04 ~ 1.2e20 5. Return to intermediate density to see retention evolution x2-3 NL04 ~ 0.9e20 and prepare for ssep scan. 6. SSEP scan at fixed NL04~0.9e20. This will vary both strikepoint locations and vary the relative amount of pumping in upper divertor a) SSEP = +10 mm x2 b) SSEP = 0 mm x2 c) SSEP = -10 mm x2 d) SSEP = -20 mm x2 7. Fiducial shot with no pumping at SSEP -20 mm (LSN) - ALL early fixed gas programming turned off! Feedback density control only 8. Repeat 6 with 1 to 1.5 MW of ICRF at fixed density: target NL04~0.9e20 a) SSEP = +10 mm x2 b) SSEP = 0 mm x2 c) SSEP = -10 mm x2 d) SSEP = -20 mm x2 |
| Physics Operators Plans |
| Entered: Feb 2 2010 01:16:16:497PM |
| Author: Bill Rowan |
| -----------------
Engineering Setup for Wednesday, 2010/02/03 ----------------- MP419 - Wall pumping measurements with cryopumping Session leaders: Whyte Physics operator: Rowan Run begins at 09:00 and ends at 17:00 Power systems as on: 1091016029 (USN), but change Ip to 0.8 MA, Btor to 5.4 T, and nl_04 to 0.6e20 m-2) Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled Gas setup: Fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid DISABLED (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) fill NINJA with 10 psi D2 DISABLED Enable gatevalves and shutters: ECE, VUV, HiREX Sr, Z-bolo Torvac gatevalve toggle (yes/no): keep gate valves CLOSED during PULSE, and remaining closed after the shot until the cryopump regenerates (typically 5 minutes) Specific diagnostics: RGA (using bypass, since the gate valves will be closed during and after each shot); in-vessel neutral pressure must be digitized for at least the first 5 minutes after each shot Boronization(yes/no): no Overnight ECDC (yes/no): yes ICRF(yes/no): yes, Prf <= 3MW LH(yes/no): no Cryopump (yes/no): ues, ready for the start of the run Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s overnight: 60 C bake |
| Session Leader Summaries |
| Entered: Feb 3 2010 06:07:10:430PM |
| Author: Dennis Whyte |
| A good day, but with some confusing results (are we
surprised?). We got about 1/2 of the shot plan completed. The first 4 shots were dedicated to re-calibrating the injection plenum versus the vessel gauges. This was accomplished with no plasma gas-only shots. A good calibration was obtained. All shots at 0.8 MA, 5.4 T, ohmic Cryopump was on for all shots (and worked very well) Dynamic balance results stored in structures in /home/whyte/idl/Feb03_2010_gasbalance.dat USN shots --------- At lower density (NL04 ~ 0.5) we found typical results for integrated retention (~10 Torr-l of 20-30 fueled). Dynamic retention was hard to analyze in control room. I will have to perform better filtering of the cryopump pressure and the injection rate to get this nailed down. The mystery came as density was increased (NL04 ~0.8). We found that the despite very constant core plasma parameters the edge recycling and cryopump pressures were continually evolving (increasing) through flattop. AND this led to a constant rate of wall retention during those phases? This is inconsistent with our usual assumption and experience that core plasma parameters set the recycling rate, which then sets the pumping rate through neutral pressure. This was a robust result that ~x2 increase in recycling/pump rate would occur throughout the stationary phases...Perhaps this is another indication of how perturbing the cryopump is to the edge plasma... This same effect was present but not so obvious at higher Nl04~1.0 Interestingly the cumulative retention in most of these high density shots was quite low (~5 Torr-L) which is at odds with the previous unpumped discharges which showed that absolute values of retention increased as recycling fluence to wall. Since these effects were unexpected I took many repeat shots to assure ourselves of reproducibility. SSEP scan -------- An SSEP scan from USN to slightly lower null was performed. The general trend was that the cumulative retention did not change much, but as we approached DN the dynamic balance started to show that the wall retention rate was increasing. Of course just to confuse matters, on our last shot (33) at LSN, the dynamic balance trend turned around and we found wall depletion. I take this with a grain of salt though until I improve the filtering on the dynamic signals. |
| Physics Operator Summaries |
| Entered: Feb 4 2010 07:54:23:560AM |
| Author: Bill Rowan |
| The SL reference shot was 1091016029 and required some corrections. The last attempt to run this MP was in December, 1091203. Although there was a problem with a valve which prevented the MP being run at that time, the physop did make the required plasma corrections and did make some small changes in the equilibrium. That development was picked up by changing the reference shot to 1091203005
At the start of the day, C-Mod no power shot cycle (shots 001-004) with preprogrammed puff into a closed vessel were run to check the calibration of the valve versus old data. The calibration shots were run without the cryopump. The most flexible and best controlled scheme was to turn off all segments but segment 1 and then program the valve in segment 1. The fizzle detector start time was moved past the off time for the gas valve. A density scan consisting of three densities was completed with shots 005-024. An ssep scan (026-033) was run with the condition that the upper x-point not be changed. That was throught to be optiumum for cryo pumping. The ssep scan was intended to end with a double null. ZCUR was moved downward shot-by-shot so that ssep changed slowly from its initial, upper-null value of 1.7. The double null (with ssep near 0) was then obtained by moving the lower x-point to a position symmetric with the upper x-point. One final change in ZCUR took ssep slightly negative. There was one engineering fault which was due to the alternator not responding to PLC command. score card 04 valve calibration 26 plasmas 02 fizzles 00 duds 01 engineering fault --------- 29 plasma attempts |
| Session Leader Comments | |||
| Feb 3 2010 09:33:00:620AM | 1100203001 | Dennis Whyte | No plasma, gas into vessel shot
The purpose of these is to check the new plenum gauge. Injected (from new gauge): 58.9 Torr-L Based on E-bottom MKS (our usual slow integration pressure gauge) the post puff inventory was 51.5 Torr-L (assuming 4.06 m3 vessel volume) Summary of gauges at 10 seconds (assuming 4.06 m3 vessel volume) E-bottom_slow:51.6 E-bottom: 52.3 E-top: 54.2 G-side: 54.5 The E-bot (slow) pressure slowly dipped over 200 seconds, likely due to the finite pumping thru the RGA bypass. So for today's experiment just use the vessel pressure after the regen. |
| Feb 3 2010 09:35:20:543AM | 1100203002 | Dennis Whyte | No plasma, gas into vessel shot
(Accidental) repeat of 1 Injected (from new gauge): 59.6 Torr-L Summary of gauges at 10 seconds (assuming 4.06 m3 vessel volume) E-bottom_slow:54.9 E-bottom: 55.2 E-top: 57.4 G-side: 57.6 |
| Feb 3 2010 09:47:31:427AM | 1100203003 | Dennis Whyte | No plasma, gas into vessel shot
~40% of gas injection of shots 1,2 for linearity check Injected (from new gauge): 20.7 Torr-L Summary of gauges at 10 seconds (assuming 4.06 m3 vessel volume) E-bottom_slow:18.3 E-bottom: 17.25 E-top: 18.0 G-side: 18.0 |
| Feb 3 2010 10:21:14:343AM | 1100203004 | Dennis Whyte | No plasma, gas into vessel shot
~150% of gas injection of shots 1,2 for linearity check Injected (from new gauge): 85.1 Torr-L Summary of gauges at 10 seconds (assuming 4.06 m3 vessel volume) E-bottom_slow:77.1 E-bottom: 78.2 E-top: 80. G-side: 80.1 Combining shots 1-4 we get the "fit" between the injection plenum and e-Bot_slow, which we will assume is the correct inventory E_bot = 0.913 * plenum - 0.7 So linear to within < Torr-L Therefore for today use this factor Real_injection_inventory = 0.902* measured_injection inventory from fixing 0 intercept in fit |
| Feb 3 2010 10:29:08:693AM | 1100203005 | Dennis Whyte | Fizzle
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| Feb 3 2010 10:52:12:420AM | 1100203007 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.4
Density was more constant, but was too low (wanted 0.6, got 0.4) checked shape: looks good SSEP ~15 mm, upper strikepoint optimized for entrance to pump It is very difficult to measure the pumping rate at this density since the pressure is so low in the pump plenum. Injected: 14.8 Torr-L Regen: 7.6 Retained: ~ 7 Torr-L |
| Feb 3 2010 11:05:03:317AM | 1100203008 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.55
Density was quite constant. Will make this our starting reference Injected: 19.5 Torr-L Regen: 9.7 Retained: ~ 10 Torr-L |
| Feb 3 2010 11:23:37:540AM | 1100203009 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.55
Repeat of shot 8 (seeing if retention constant from shot to shot) Injected: 17.2 Torr-L Regen: 19.3 Retained: -2 Torr-L ??? I've never seen a non-disruptive, repeat shot in C-Mod have no retention?? Definitely repeat. |
| Feb 3 2010 11:38:49:953AM | 1100203010 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.55
Repeat. Very constant line averaged density... Injected: 15.4 Torr-L Regen: 6.1 Torr- Retained: ~9 Torr-L So back to "normal" wall pumping.. I have no idea what happened in shot 09? will repeat one more time to make sure this repeats. |
| Feb 3 2010 11:58:12:507AM | 1100203011 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.55
Repeat. Density swerved a bit. Injected: 15.0 Torr-L Regen: 7.8 Torr- Retained: ~7.2 Torr-L Again, normal. Shot 9 looks like an outlier.. cannot figure out what was different about that shot. |
| Feb 3 2010 12:30:14:037PM | 1100203013 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.55
Repeat. Good density control Injected: 17.2 Torr-L Regen: 9.7 Torr- Retained: ~7.5 Torr-L Repeated result of 011 Time to move to density scan |
| Feb 3 2010 12:38:21:367PM | 1100203014 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.9
HUGE MARFE on this shot so no density control until late in flattop Injected: 90.2 Torr-L Regen: 68 Torr-L Retained: 22 Torr-L |
| Feb 3 2010 12:54:34:060PM | 1100203015 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.85
Good density control Injected: 45.6 Torr-L Regen: 42 Torr-L Retained: 3.6 Torr-L This is an amazing shot. We have very constant core parameters and shape from 0.8 to 1.5 s (end of flattop), YET the H-alpha (recycling) and cryopump pressure are increasing substantially through this period (which violates the idea that the core density + power sets edge/divertor recycling.) Dynamic particle balance shows ~constant uptake ~10 Torr-L/s in this phase.. |
| Feb 3 2010 01:09:35:427PM | 1100203016 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.85
Good density control Injected: 49.1 Torr-L Regen: 43.3 Torr-L Retained: ~6 Torr-L Again the same behavior as the last shot... the recycling and cryopumping increase a factor of two through the "steady" part of the discharge. Cannot find anything in core plasma (central Te, ne from both CO2 and TS) that is changing. There is a drift up in 2pi foil (not in 2pi diode) which is just consistent with more neutral CX Some hints that the density profile is changing despite constant line averaged density |
| Feb 3 2010 01:23:21:977PM | 1100203017 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.85
Three repeats of this bizarre recycling behaviour Injected: 46.5 Torr-L Regen: 41.9 Torr-L Retained: ~5 Torr-L |
| Feb 3 2010 02:22:12:470PM | 1100203021 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1
Avoided MARFE. Injected: 85.7 Torr-L Regen: 77.5 Torr-L Retained: ~9 Torr-L Slight drifts in NL04 and outer gap that we'll fix Repeat to see if constant Dynamic particle balance states that this reached a state of zero net retention rate at end of flattop. |
| Feb 3 2010 03:14:33:910PM | 1100203025 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~0.8
Repeat of 0.8 shot to see if the wacky time evolution of recycling in flattop was still there... the answer is YES (and it seems we got even better density and shape control in this than in say shot 18) Therefore this definitely looks like a real (but bizarre) behaviour. Injected: 45.9 Torr-L Regen: 44.9 Torr-L Retained: 1 Torr-L The absence of any retention is probably consistent with single shot step from previous shots at higher density. |
| Feb 3 2010 04:28:37:127PM | 1100203026 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Start to scan SSEP however it did not move very far on this shot compared to 24 Injected: 76.1 Torr-L Regen: 69.7 Torr-L Retained: ~6 Torr-L |
| Feb 3 2010 04:31:50:910PM | 1100203027 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 1.2 cm Injected: 72 Torr-L Regen: 67 Torr-L Retained: ~5 Torr-L |
| Feb 3 2010 04:33:40:080PM | 1100203028 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 1.15 cm Injected: 62 Torr-L Regen: 59 Torr-L Retained: ~3 Torr-L |
| Feb 3 2010 04:34:29:707PM | 1100203028 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 1.15 cm Injected: 62 Torr-L Regen: 59 Torr-L Retained: ~3 Torr-L Dynamic balance show ~zero to slightly negative flattop retention rate (first time today) |
| Feb 3 2010 04:37:27:863PM | 1100203029 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 0.92 cm Injected: 61.2 Torr-L Regen: 57.7 Torr-L Retained: ~3.5 Torr-L Did not have great density control on this. |
| Feb 3 2010 04:44:36:803PM | 1100203030 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 0.72 cm Injected: 50 Torr-L Regen: 47 Torr-L Retained: ~3 Torr-L Did not have great density control on this shot again... |
| Feb 3 2010 04:51:33:137PM | 1100203031 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 0.15 cm (very close DN) Injected: 71 Torr-L Regen: 64.5 Torr-L Retained: 6.5 Torr-L Constant divertor pressure, recycling in latter part of the flattop. Looks like good balance (no retention) in the flattop from dynamic balance |
| Feb 3 2010 05:08:28:627PM | 1100203032 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ 0. cm balanced DN Injected: 63 Torr-L Regen: 57.6 Torr-L Retained: 5 Torr-L Like previous results we see that the dynamic balance is now showing slightly positive, constant wall uptake as SSEP goes away from the pump. |
| Feb 3 2010 05:19:58:473PM | 1100203033 | Dennis Whyte | 0.8 MA, 5.4 T, NL04~1.0
Part of scan SSEP ~ -0.2 cm LN Injected: 56.2 Torr-L Regen: 51.6 Torr-L Retained: ~5 Torr-L So now the dynamic balance goes from positive to being negative in the stationary part of the shot? |
| Physics Operator Comments | |||
| Feb 3 2010 08:31:47:347AM | Bill Rowan | physop log 1100203
how wide do we want the rga bypass -- 140 is what Jim normally uses signed on as physop Loaded segment 2 from 1091203005. This is the previous attempt to execute this MP. Bob made changes to the reference shot 1091016029 to conform to SL requests and some corrections to RXU. With the cryo on the prefill for this shot was 57 ms set the RGA bypass to 170. expect the pressure to be in the range of a few 10^-6 Jim Irby recommendation | |
| Feb 3 2010 08:39:54:227AM | 1100203001 | Bill Rowan | 001.
C-Mod no power shot cycle with preprogrammed puff into closed vessel to check the calibration of the valve versus old data Based on a shot from yesterday, 1 s on yields 110 T/L PCS segment 2 programming for PG3 is 0.2 s full on. Cryo off fizzle detector on at 0.65 to miss the programmed PG3 |
| Feb 3 2010 09:05:38:750AM | 1100203001 | Bill Rowan | 001. Successful puff test.
Next shot. Decrease the PG3 puff to 100 ms from 200 ms |
| Feb 3 2010 09:32:31:963AM | 1100203002 | Bill Rowan | 002. No change
Next shot Turn off segment 02 Put a 200 ms pulse into PG3 |
| Feb 3 2010 09:58:32:990AM | 1100203003 | Bill Rowan | 003. successful
next shot. pg3 in segment 1 on from 0 to 0.75 moved the fizzle detector to 1.1 start |
| Feb 4 2010 07:25:33:280AM | 1100203004 | Bill Rowan | 004. successful
Next shot: Loaded from 1091203005. This is the previous attempt to execute this MP. Bob made changes to the reference shot 1091016029 to conform to SL requests and some corrections to RXU. cryo on Moved fizzle detector start back to 0.08 s |
| Feb 3 2010 05:17:08:223PM | 1100203005 | Bill Rowan | 005. Fizzle.
|
| Feb 3 2010 05:16:57:067PM | 1100203006 | Bill Rowan | 006. Reduce the prefill from 57 ms form 50 ms
Some "control room" comment that the cryo performance improves after the first shot. |
| Feb 3 2010 10:49:02:043AM | 1100203007 | Bill Rowan | 007.
reduce the nl_04 proportional gain to 2 nl_04 stable at 4.4 |
| Feb 3 2010 10:49:52:310AM | 1100203007 | Bill Rowan | nl_04 less than required. |
| Feb 3 2010 10:51:35:810AM | 1100203007 | Bill Rowan | Injection of some sort at 0.8 s
|
| Feb 3 2010 11:01:00:610AM | 1100203008 | Bill Rowan | 008. Increased the integral gain to 2
nl_04 stable near 5.6 |
| Feb 3 2010 11:37:52:030AM | 1100203010 | Bill Rowan | 010. No changes in PCS
Full length shot |
| Feb 3 2010 11:49:46:020AM | 1100203011 | Bill Rowan | 011. No changes in PCS
Full length shot. Density had a single oscillation Dropped lower at 1.1 s than on previous shot |
| Feb 3 2010 12:07:45:760PM | 1100203012 | Bill Rowan | 012. No power shot.
Alternator did not ramp up that time. |
| Feb 3 2010 12:16:44:873PM | 1100203013 | Bill Rowan | 013. No changes in PCS
Full length shot. nl_04 was reasonably flat -- recovery from 011. |
| Feb 3 2010 05:16:05:253PM | 1100203014 | Bill Rowan | 014. nl_04 demand set to 0.95e+20
Marfe. Surprising at this low density. |
| Feb 3 2010 12:42:27:710PM | 1100203015 | Bill Rowan | 015. nl_04 demand set to 0.8e+20
Take out half the feed forward density: pg3 demand reduced from 40 to 20 after 0.5 s Nl_04 = 0.8e+20 |
| Feb 3 2010 12:57:15:390PM | 1100203016 | Bill Rowan | 016. No changes in PCS
nl_04 = 0.8e+20 |
| Feb 3 2010 01:10:26:220PM | 1100203017 | Bill Rowan | 017. No changes in PCS
nl_04 = 0.8e+20 |
| Feb 3 2010 01:29:25:887PM | 1100203018 | Bill Rowan | 018. nl_04 demand set to 0.95e+20
marfe at the end of the shot |
| Feb 3 2010 01:41:51:407PM | 1100203019 | Bill Rowan | 019. nl_04 demand set to 0.9e+20
fizzle ratiomatic = 0.088mT |
| Feb 3 2010 05:15:34:643PM | 1100203020 | Bill Rowan | 020. Prefill reduced from 50 ms to 47 ms.
ratiomatic = 0.07 mT disruption at 0.29s looks like an injection so try again |
| Feb 3 2010 02:05:59:773PM | 1100203021 | Bill Rowan | 021. Full length plasma
nl_04 = 0.94e+20 |
| Feb 3 2010 02:23:38:640PM | 1100203022 | Bill Rowan | 022. Added a ramp to rcur to remove the drift in the right gap
Added a ramp to nl_04 to remove the slight increase with time. right gap droops after 1 s. |
| Feb 3 2010 02:36:51:757PM | 1100203023 | Bill Rowan | 023.
On the previous shot, the right gap drooped after 1s. Corrected on this shot with a change in rcur. Few percent peak in nl_04 Full length shot. |
| Feb 3 2010 02:51:27:793PM | 1100203024 | Bill Rowan | 024. Full length shot.
|
| Feb 3 2010 03:04:55:297PM | 1100203025 | Bill Rowan | 025. nl_04 demand set to 0.8e+20 with the small ramp that was added for shot 022
|
| Feb 3 2010 03:25:55:163PM | 1100203026 | Bill Rowan | 026.nl_04 demand set to 0.9e+20
ssep scan. reduced zcurr from 0.006 to 0.004 ssep = 1.5 |
| Feb 3 2010 03:58:45:287PM | 1100203027 | Bill Rowan | 027. ssep scan. reduced zcurr from 0.004 to 0.000
ssep = 1.3 |
| Feb 3 2010 03:52:48:020PM | 1100203028 | Bill Rowan | 028. ssep scan reduced zcurr from 0.000 to -0.002
ssep = 1.1 |
| Feb 3 2010 05:11:21:877PM | 1100203029 | Bill Rowan | 029. ssep scan. reduced zcurr from -0.002 to -0.006
right gap decreasing slightly. Decrease rcurr by 2 mm ssep = 0.95 |
| Feb 3 2010 05:13:45:177PM | 1100203030 | Bill Rowan | 030. ssep scan. reduced zcurr from -0.006 to -0.012
ssep = 0.76 |
| Feb 3 2010 05:10:51:017PM | 1100203031 | Bill Rowan | 031. ssep scan. zcurr = 0.0, zxl = -0.01 from -0.04
ssep = 0.17 |
| Feb 3 2010 05:14:22:893PM | 1100203032 | Bill Rowan | 032. ssep scan. zcurr = -0.002
ssep = 0.06 |
| Feb 3 2010 05:10:19:003PM | 1100203033 | Bill Rowan | 033. ssep scan. zcurr = -0.006
ssep = -0.2 last shot |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 08:59:34:043AM | Test | Ok | Gas test GV1&2 closed |
| 2 | 09:14:21:317AM | Test | Ok | Gas test GV1&2 closed |
| 3 | 09:33:40:490AM | Test | Ok | Gas test GV1&2 |
| 4 | 09:59:44:883AM | Test | Ok | |
| 5 | 10:13:11:937AM | Plasma | Ok | |
| 6 | 10:26:02:330AM | Plasma | Ok | |
| 7 | 10:39:06:337AM | Plasma | Ok | |
| 8 | 10:52:34:310AM | Plasma | Ok | |
| 9 | 11:08:22:863AM | Plasma | Ok | |
| 10 | 11:26:05:040AM | Plasma | Ok | |
| 11 | 11:44:00:877AM | Plasma | Ok | |
| 12 | 11:57:44:943AM | Plasma | Bad | The alternator did not ramp up |
| 13 | 12:12:26:280PM | Plasma | Ok | |
| 14 | 12:25:12:033PM | Plasma | Ok | |
| 15 | 12:39:29:740PM | Plasma | Ok | |
| 16 | 12:52:52:200PM | Plasma | Ok | |
| 17 | 01:06:21:127PM | Plasma | Ok | |
| 18 | 01:19:56:053PM | Plasma | Ok | |
| 19 | 01:33:57:420PM | Plasma | Ok | |
| 20 | 01:48:40:173PM | Plasma | Ok | |
| 21 | 02:02:03:663PM | Plasma | Ok | |
| 22 | 02:16:17:467PM | Plasma | Ok | |
| 23 | 02:30:06:097PM | Plasma | Ok | |
| 24 | 02:46:12:853PM | Plasma | Ok | |
| 25 | 03:01:23:733PM | Plasma | Ok | |
| 26 | 03:17:20:430PM | Plasma | Ok | |
| 27 | 03:33:50:810PM | Plasma | Ok | |
| 28 | 03:49:24:720PM | Plasma | Ok | |
| 29 | 04:04:06:460PM | Plasma | Ok | |
| 30 | 04:18:47:890PM | Plasma | Ok | |
| 31 | 04:37:24:460PM | Plasma | Ok | |
| 32 | 04:52:04:993PM | Plasma | Ok | |
| 33 | 05:05:41:310PM | Plasma | Ok | |
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| Feb 3 2010 08:59:01:513AM | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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