| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Jim Terry |
| Physics operator(s): | Earl Marmar |
| Engineering operator(s): | Andy Pfeiffer,Bill Parkin |
| Engineering Operator Run Comment |
| MP #451 Large ELMs SL: J.Terry PO: Marmar |
| Session Leader Plans |
| Entered: May 3 2006 10:10:29:223AM |
| Author: Jim Terry |
| Plan for MP 451 - Structure and Stability of Large "Type 1" ELMs
There remains intense interest in the study of EM structure and dynamics, as evidenced by a session on that topic in the recent ITPA Pedestal meeting at MIT (April 10-12, 2006). Key questions that C-Mod results can help to answer (and which we propose to investigate with this mini-proposal) are: What is the rotation direction (co- or counter-current) of the "primary" ELM relaxation pulse? MAST shows counter-current rotation, while JET sees co-current. Are C-Mod's discrete ELMs "Type 1"? This question is still unresolved. How are ELMs simply a transient return to L-mode? What is the typical number of "filaments" ejected during an ELM event? GPI measurements on C-Mod indicate 2-5, while on MAST the number is 10-15. What is the energy analysis of C-Mod's typical ELM in this operational space? So far we have very little information on this crucial aspect of ELMs. What is the dependence of ELM structure on q95? Most of our discrete ELM discharges (unaccompanied by EDA) are with similar external parameters. Is there any evidence of ELM filaments at the inboard midplane? We propose to use the inboard GPI views to see if ELM filaments connect to the inboard midplane. Does increasing the magnitude of the outer gap improve the chances of seeing the filaments on the fast-framing camera? MAST has at least a 15 cm outer gap. To invetigate these questions and to look again at the structure of the C-Mod ELMs and the ELM precursor, we propose: 1) overnight ECDC with He NINJA fill with 10 psi D2 Load shot 1050623033 RF 0N at 0.7s at 3 MW - OFF at 1.2 s. NINJA puff at A-B limiter, initially 2) With well-boronized walls, load shot 1050623033 (Ip=0.9 MA, target density NL_04=5e19 m-2, lower triangularity=0.78, ICRF power 3 MW, but with Bt=5.6T instead of 5.4T for FRC-ECE) - produce discrete ELMs (3 shots - with the GPI fast-diodes looking at the outboard views (poloidal and radial resolution) 3) Repeat with increased ICRF power - up to max available (2 shots) 4) Repeat with decreased ICRF power - 2 MW (2 shots) 5) Repeat at optimum RF power level (3 additional shots for Edge TS profile statistics and for images of ELM structure as observed by fast-camera) 6) Increase the outer gap to 2.1 cm (from 1.1 cm) by reducing the inner gap from 2.4 to 1.4 cm. Reduce the R location of the X-pt by 1 cm as well, keeping the lower triangularity constant. (This is in order to put the inboard separatrix within the field-of-view of the inboard fast diode array.) (2 shots) 7) If ELMs are produced at these gaps, then repeat (at optimum RF power level) for fast-diode views switched to include the inboard radial array (5 shots) - NINJA puff at inner midplane, not at A-B limiter 8) Begin q scan, by repeating (at optimum RF power level, optimum gaps) with at Ip=0.7 MA (q95=4.5) with fast-diode views switched back to outboard views only (4 shots) 9) Repeat (at optimum RF power level) with at Ip=1.1 MA (q95=2.9) (4 shots) Key diagnostics: Dα fast-diode arrays with GPI, fast magnetics (with 10 MHz digitization rate starting at 0.7 s), ECE - especially FRCECE with high resolution in the pedestal, Edge TS, DALSA VB profiles (will turn-off A-B limiter NINJA puff on some shots), PCI, divertor probes with 1MHz digitization rate, PSI4 fast camera with wide-angle view |
| Physics Operators Plans |
| Entered: May 2 2006 05:17:39:490PM |
| Author: Earl Marmar |
| Physop plan and engineering setup for Wednesday, 03-May-2006
MP #451 Large ELMs SL: J.Terry PO: Marmar Overnight ECDC (helium-4, gauge pressure 5e-5 torr) Engineering setup: ------------------- Power system setup as on 1050623033 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 with 15psi He3. Hybrid disabled (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) fill NINJA with 10psi D2 (Disable) We will not do between shot boronization during the run. Enable the following gate valves and shutters: ECE, VUV, Z-bolo shutters. FMIT#1,2, 3 and 4 in Run-on by 8:30AM |
| Session Leader Summaries |
| Entered: May 4 2006 10:14:09:190AM |
| Author: Jim Terry |
| We accomplished very little of the MP (#451).
Although occasional discrete ELMs were produced, they were not "high quality", i.e. did not have the signature of a sharp crash and gradual recovery. On the last two shots, however, 1060503022 and 023, good ELMs were produced. The reason(s) for this are not at all clear. The RF waveform was somewhat cleaner, but otherwise the parameters appear to have been the same as previous shots. We were not able to do a ICRF power scan because the RF was limited to 2.3 MW (except for the last shot) and there were multiple faults per RF pulse. We tried the 3 plasma currents specified in the MP (0.7, 0.9, 1.1 MA), but the number of ELMs was so few that it is hard to see what effect the change in current made. (0.7 MA plasmas yielded no ELMs). The two shots with good ELMs had Ip=0.9 MA. We were not able to look for ELMs on the inboard midplane, because I was not confident enough in producing ELMs to switch to the inboard-SOL-views. We may have succeeded in getting measurements of the ELM energy loss, with good Edge TS, good ECE, and good VB profile data. The fast magnetics and the fast-diodes were fine, but there are only a handful of ELMs to analyse. The PSI4 fast camera got data during three ELMs, having been triggered by the ELM trigger system. The shots for which camera images during the ELM were obtained were: 007 009 023 The shots for which ELMs were observed: 002 - some poor ELMs starting at 0.832s (Ip=0.9) 003 - some poor ELMs starting at 0.808s (Ip=0.9) 005 - poor ELM at 0.817s (Ip=0.9) 006 - some poor ELMs starting at 1.23s during ohmic H-mode (thru 1.5 s)(Ip=0.9) 007 - poor ELMs starting at 0.844s, lasting thru ohmic H-mode (thru 1.5 s)(Ip=0.9) 008 - OK ELMs starting at 0.87s (clear signature on magnetics)(Ip=0.9) 009 - OK ELMs starting at 0.92s (Ip=0.9 - moved plasma in) 010 - OK ELMs starting at 0.92s, lasting thru ohmic H-mode (thru 1.5 s) (Ip=0.9) 019 - possible ELM at 0.879 s (Ip=1.1) 022 - best - ELMs starting at 0.82 s (Ip=0.9) 023 - good - ELMs starting at 0.77 s (Ip=0.9 max Prf=3.1 MW) |
| Physics Operator Summaries |
| Entered: May 4 2006 09:50:31:567AM |
| Author: Earl Marmar |
| The machine ran pretty well today.
There was one 15 minute inter-shot boronization, after shot 10. During check on shot 11, the torus pressure had an excursion to 2e-4 (gauge), so we chose to take a no power shot. This was followed by 3 fizzles, with fill pressure tweaks. Making the EF4 bias 10 amps more positive was followed by plasmas for the rest of the day. Going up to 1.1 MA got us into trouble with power supply limits in this funny shape (based on the match to JFT-2M) and there were two which disrupted after 1.3 seconds (shots 20 and 21). See the session leader summary for details on the ELM quest, but shots 22 and 23 appeared to be the best of the day from this point of view. The between-shot boronization appeared to have completely worn off, but nevertheless the confinement was, at least transiently, quite good on shot 22, with a steady 2 MW of RF power. Scorecard: Plasmas 19 fizzles 3 no power 1 Total cycles 23 |
| Session Leader Comments | |||
| May 3 2006 12:56:09:520PM | Jim Terry | Fast-diode setup for today's ELM run
Start with trigger at 0.75 s diode # trans fiber # view F/no 1 GPI #1 OUTER SOL 14 F/2.8 2 GPI #2 OUTER SOL 13 F/2.8 3 GPI #3 OUTER SOL 39 F/2.8 4 GPI #4 OUTER SOL 2 F/1.4 5 GPI #5 OUTER SOL 3 F/1.4 6 #39 OUTER SOL 38 F/5.6 7 #40 OUTER SOL 1 F/1.4 8 #41 OUTER SOL 31 F/2.8 9 #42 OUTER SOL 32 F/2.8 10 #43 OUTER SOL 33 F/4.0 11 #44 OUTER SOL 7 F/1.4 12 #45 OUTER SOL 35 F/4.0 13 #46 OUTER SOL 36 F/4.0 14 #47 OUTER SOL 10 F/4.0 15 #48 OUTER SOL 11 F/4.0 16 #49 OUTER SOL 12 F/4.0 17 #50 OUTER SOL 37 F/4.0 18 #51 OUTER SOL 9 F/2.8 19 #52 OUTER SOL 23 F/2.8 20 #20 OUTER SOL 5 F/1.4 21 #21 OUTER SOL 34 F/2.8 22 #22 OUTER SOL 4 F/1.4 23 #26 OUTER SOL 6 F/1.4 Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 1.2 ref. voltage=1.1 V PSI5 intensifier gate .75-0.00008 to 1.2 s NINJA trigger at 0.6s for 0.1 s - A-B limiter & B16-001 (this innerwall puff was a mistake) NINJA plenum=480 Torr PSI5 detector has -30 degrees, pressure=1.11 PSI4 detector has -22 degrees, pressure=0.92 (We pumped the PSI4 detector down last night from a pressure of 5.5.) PSI5 integration time=4 microsec, 14 post-trigger samples to start PSI4 integration time=4 microsec, 120 post-trigger samples to start | |
| May 4 2006 05:27:26:300PM | Jim Terry | The registration of the B-side wide-angle view (which
was coupled to the PSI4) was done after the run by looking at ECDC (filter in, F/1.8, integration time 40 ms/frame). The registration images were taken for test shots 106050302 (NOTE the nn number not nnn!) 106050304 106050307 106050309 106050312 These images were also stored locally on the PSI4 PC in the C:/Images/Psi_4/saved_test_shots/ directory. To view the image in the correct orientation: jt=intarr(250,250,28) for i=0,27 do jt(50:210,90:170,i)=f(*,*,i) for i=0,27 do jt(*,*,i)=rot(jt(*,*,i),-133) jtt=intarr(101,81,28) for i=0,27 do jtt(*,*,i)=jt(80:180,80:160,i) ns=size(jtt) for i=0,27 do tvscl,rebin(jtt(*,*,i),ns(1)*4,ns(2)*4) & wait,1. | |
| May 3 2006 09:23:14:613AM | 1060503001 | Jim Terry | try to reproduce shot 1050623033, but with Bt=5.6T, instead of 5.4T.
ICRF programmed for 3 MW from 0.7-1.2 s disrupted at 0.67s |
| May 3 2006 09:41:08:317AM | 1060503002 | Jim Terry | try to reproduce shot 1050623033, but with Bt=5.6T, instead of 5.4T.
ICRF programmed for 3 MW from 0.7-1.2 s Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s OK - some poor ELMs starting at 0.832 not full ICRF power some diode channels are railed? PSI5 ok 120 pt samples PSI4 - couldn't arm it |
| May 4 2006 09:13:16:513AM | 1060503003 | Jim Terry | ICRF programmed for 3 MW from 0.7-1.2 s
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s OK - some poor ELMs starting at 0.808 not full ICRF power diode channels 4-8 are railed PSI5 ok 180 pt samples PSI4 triggered - no strobes |
| May 3 2006 10:40:53:130AM | 1060503004 | Jim Terry | ICRF programmed for 3 MW from 0.7-1.2 s
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s OK - but no ELMs not full ICRF power found -15V disconnected on one of the fast-diode racks, that was why diode channels 4-8 were railed PSI5 armed, but didn't trigger PSI4 triggered - but no strobes |
| May 3 2006 10:42:51:537AM | 1060503005 | Jim Terry | ICRF programmed for 3 MW from 0.7-1.2 s
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s OK - poor ELM at 0.817s not full ICRF power PSI5 triggered on ELM PSI4 triggered ELM, but way overexposed |
| May 4 2006 09:19:35:043AM | 1060503006 | Jim Terry | ICRF programmed for 3 MW from 0.7-1.2 s
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s OK - no ELMs in fast-diode window some poor ELMs starting at 1.23 during ohmic H-mode not full ICRF power PSI5 triggered on ELM PSI4 triggered ELM, but way overexposed |
| May 3 2006 11:45:20:583AM | 1060503007 | Jim Terry | ICRF programmed for 2.3 MW from 0.7-1.2 s
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s fast-diode trigger moved for 0.75 to 0.8s NINJA trigger moved from 0.6 s to 0.65 s OK - poor ELM at 0.844s PSI5 triggered on ELM reduced F/no on 25 mm lens in front of PSI4 from F/1.8 to F/11 PSI4 triggered on ELM see striations, but count rate is high (9000 counts) |
| May 3 2006 01:17:50:597PM | 1060503008 | Jim Terry | ICRF programmed for 23 MW from 0.7-1.2 s
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 0.875 ref. voltage=0.8 V PSI5 intensifier gate .75-0.00008 to 1.2 s fast-diode trigger at 0.8s NINJA trigger at 0.65 s OK - OK ELMs in window starting at 0.87s (signature on magnetics) PSI5 triggered on ELM reduced F/no on 25 mm lens in front of PSI4 from F/11 to F/16 PSI4 triggered early |
| May 3 2006 01:26:19:850PM | 1060503009 | Jim Terry | Increased outer gap by 0.6 cm, decreased inner gap, decreased R of X-pt plasma
ICRF programmed for 2.3 MW from 0.7-1.2 s Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard triggers - 0.925 ref. voltage=0.8 V PSI5 intensifier gate (0.75-80 microsec) to 1.2 s fast-diode trigger at 0.85 s NINJA trigger moved from 0.65 s to 0.7 s OK - OK ELM at 0.92s PSI5 triggered on ELM PSI4 triggered on ELM - see striations, count rate is still high (~5000 counts) |
| May 3 2006 01:16:37:957PM | 1060503010 | Jim Terry | Increased outer gap, decreased inner gap, decreased R of X-pt plasma
ICRF programmed for 2.3 MW from 0.7-1.2 s Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard triggers - 0.925 ref. voltage=0.8 V PSI5 intensifier gate (0.75-80 microsec) to 1.2 s fast-diode trigger at 0.85 s NINJA trigger moved from 0.65 s to 0.7 s OK - OK ELM at 0.92s, more after 1.0 sec - best yet PSI5 not armed PSI4 not armed |
| May 3 2006 01:37:45:003PM | 1060503011 | Jim Terry | data system shot only |
| May 3 2006 01:37:12:847PM | 1060503012 | Jim Terry | Intershot boronization (15 min with 0.7 m dwell) after shot 010
fizzle |
| May 3 2006 01:47:33:113PM | 1060503014 | Jim Terry | fizzle |
| May 3 2006 02:11:17:600PM | 1060503015 | Jim Terry | Nice H mode, including an ohmic H-mode before the RF - but no ELMs
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard triggers - 0.925 ref. voltage=0.8 V PSI5 intensifier gate (0.75-80 microsec) to 1.2 s fast-diode trigger at 0.85 s NINJA trigger at 0.7 s PSI5 triggered, but no strobes PSI4 triggered, but no strobes - strange image including a saturated part in corner |
| May 3 2006 03:05:45:690PM | 1060503018 | Jim Terry | Ip=0.7 MA
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard triggers - 0.925 ref. voltage=0.8 V PSI5 intensifier gate (0.75-80 microsec) to 1.2 s fast-diode trigger at 0.85 s NINJA trigger at 0.7 s lots of dust seen at 0.91 on WIDE2 no ELMS |
| May 3 2006 03:11:47:723PM | 1060503019 | Jim Terry | Ip=1.1 MA
Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard triggers - 0.925 ref. voltage=0.8 V PSI5 intensifier gate (0.75-80 microsec) to 1.2 s fast-diode trigger at 0.85 s NINJA trigger at 0.7 s OK ELM at 0.879 s According to the diodes the outer gap seems to be larger. PSI5 triggered with stobes on ELM PSI4 triggered with stobes on ELM, but no images |
| May 3 2006 03:20:45:083PM | 1060503020 | Jim Terry | repeat
Ip=1.1 MA Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard triggers - 0.925 ref. voltage=0.8 V PSI5 intensifier gate (0.75-80 microsec) to 1.2 s fast-diode trigger at 0.85 s NINJA trigger at 0.7 s no ELMs PSI5 int time now 8 microsec - triggered with stobes, but not on ELM PSI4 triggered with stobes, but not on ELM |
| May 3 2006 04:44:25:057PM | 1060503021 | Jim Terry | after a 1 hr delay to close the diborane, we got another
Ip=1.1 MA plasma (PRF=2.2 MW). Very weak H-mode, with a few ELMs after 1.05 sec - just before dithers. There was no NINJA puff, so maybe we were below the H-mode low density threshold. |
| May 4 2006 04:16:15:173PM | 1060503022 | Jim Terry | drop back to 0.9 MA (PRF=2.2 MW).
Good - many ELMs - best yet Great magnetics data. There was no NINJA puff, so maybe we were below the H-mode low density threshold on the last shot. Got VB profile data for ELM energy analysis. For the energy analysis we note: the smallish ELM at 0.834 s had an Edge TS pulse in the middle of the crash! The pedestal is definitely NOT being dstroyed as would be expected in a Type I ELM. Within the laser pulse-to-laser pulse scatter in the data the effect of the ELM is not significant. When the continuously recording channels of the GPC ECE (channel 8) and the FRC-ECE the effects of the ELM chrash on the temperature are a ~10% drop. The FRC-ECE does not see a sharp pedestal (optical depth issue perhaps?). Nonetheless there are non-thermal features on the channels outside the crash radius and the Te drop propagates inward from the crash radius (in the pedestal - channel #6 and at the top of the pedestal channel #7). (use the scope /home/lynn/scopes/frcece_fast_data.dat) |
| May 3 2006 05:27:41:010PM | 1060503023 | Jim Terry | Ip=0.9 MA (PRF=3.1 MW max).
Good - many ELMs - not quite as good as 022 There was a NINJA puff, good fast-diode data no magnetics data! Trigger setup: ELM trigger system ENABLE - .75-1.2 s PSI5 & PSI4 hard trigger - 1.05 ref. voltage=0.8 V PSI5 intensifier gate 0.875-0.00008 to 1.325 s NINJA trigger at 0.75 s for 0.1 s at A-B lim fast-diode trigger at 0.9 s PSI4 (4 microsec) with data but strobes are not in 6810 window. Probably went on 1st ELM trigger at 0.803041 s |
| Physics Operator Comments | |||
| May 3 2006 09:18:50:113AM | 1060503001 | Earl Marmar | load from 1050623033
recalc. magnetics to switch to BP16_JK increase TF to -155.6kA increase nl_04 target to 0.5e20 put in A-coil feedback import segment 1 from 1060302027 plasma lots of hards disrupt 0.67 seconds (preceded by big increase in Prad) startup looks ratty |
| May 3 2006 09:21:07:910AM | 1060503002 | Earl Marmar | increase prefill puff 3 msec (to 23 msec)
|
| May 3 2006 09:39:26:490AM | 1060503002 | Earl Marmar | plasma through rampdown
got the shape density is a bit higher than requested H-modes with back transitions |
| May 3 2006 09:48:16:347AM | 1060503003 | Earl Marmar | no pcs changes
plasma density close to the desired target H-modes, some discrete ELMy things |
| May 3 2006 10:24:31:990AM | 1060503004 | Earl Marmar | no pcs changes
plasma some early hards |
| May 3 2006 11:21:15:410AM | 1060503005 | Earl Marmar | lower nl_04 target to 4.3e19
plasma |
| May 3 2006 11:21:27:800AM | 1060503006 | Earl Marmar | no pcs changes
plasma |
| May 3 2006 11:21:39:707AM | 1060503007 | Earl Marmar | no pcs changes
plasma |
| May 3 2006 11:50:12:380AM | 1060503008 | Earl Marmar | argon enabled for this shot, 40 msec pulse, starting at .35 seconds
plasma some early hards |
| May 3 2006 12:24:01:317PM | 1060503009 | Earl Marmar | move the plasma in (major radius) by about 7 mm
decrease RCUR (7mm), CLEARIN (7mm) and RXL (5mm) plasma shape changes are about right |
| May 3 2006 12:24:34:427PM | 1060503010 | Earl Marmar | no pcs changes
plasma |
| May 3 2006 01:20:17:707PM | 1060503011 | Earl Marmar | boronization prior to this shot:
ECDC scan 65 to 75 cm, dwell at 70; 100% duty factor, 15 minutes prefill puff to 6 ms no power shot during check, the pressure in the torus rose to 2e-4, so we decided not to take the shot within about 30 seconds, the pressure came back down |
| May 3 2006 01:22:09:973PM | 1060503012 | Earl Marmar | try again
post between-shot boronization fill pressure = 4.0e-6 entering pulse fizzle |
| May 3 2006 01:38:02:537PM | 1060503013 | Earl Marmar | prefill puff to 20 msec
fizzle |
| May 3 2006 01:50:25:350PM | 1060503014 | Earl Marmar | no pcs changes
fizzle |
| May 3 2006 02:10:53:050PM | 1060503015 | Earl Marmar | EF4 10A more negative (now -1355)
plasma ohmic H-mode around 0.5 second |
| May 3 2006 02:20:18:300PM | 1060503016 | Earl Marmar | no pcs changes
plasma lower density this time; no early ohmic h-mode |
| May 3 2006 02:36:04:787PM | 1060503017 | Earl Marmar | no pcs changes
plasma late H-mode disrupt at 1.26 seconds |
| May 3 2006 02:52:39:910PM | 1060503018 | Earl Marmar | Ip to 0.7 MA
plasma hard x-rays spin up around 0.3 seconds big increase in impurities around 0.8 seconds; wide 2 shows big spray of stuff |
| May 3 2006 03:24:17:160PM | 1060503019 | Earl Marmar | add 2 msec to prefill puff (now 22 msec)
Ip to 1.1 MA plasma |
| May 3 2006 03:25:07:770PM | 1060503020 | Earl Marmar | no pcs changes
plasma disrupt at 1.5 seconds problems with interferometer |
| May 3 2006 03:43:21:490PM | 1060503021 | Earl Marmar | cell access before this shot
close the diborane bottle realign TCI try to fix RF data acquisition problem |
| May 3 2006 04:40:02:510PM | 1060503021 | Earl Marmar | start Ip rampdown at 1.3 seconds
plasma disrupt at 1.35 s weak h-mode after 1 second |
| May 3 2006 04:52:15:510PM | 1060503022 | Earl Marmar | Ip to 0.9 MA
plasma best shot of the day so far |
| May 3 2006 05:16:54:837PM | 1060503023 | Earl Marmar | no pcs changes
plasma; some early hards |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 09:11:22:253AM | Plasma | Ok | |
| 2 | 09:25:25:770AM | Plasma | Ok | |
| 3 | 09:41:16:160AM | Plasma | Ok | |
| 4 | 10:14:04:457AM | Plasma | Ok | |
| 5 | 10:28:14:003AM | Plasma | Ok | |
| 6 | 10:41:24:830AM | Plasma | Ok | |
| 7 | 11:04:07:677AM | Plasma | Ok | |
| 8 | 11:35:13:347AM | Plasma | Ok | |
| 9 | 11:56:34:113AM | Plasma | Ok | |
| 10 | 12:09:15:037PM | Plasma | Ok | |
| 11 | 01:05:47:427PM | Plasma | Bad | Machine pressure problem |
| 12 | 01:20:32:003PM | Plasma | Ok | |
| 13 | 01:32:59:973PM | Plasma | Ok | |
| 14 | 01:45:30:037PM | Plasma | Ok | |
| 15 | 01:57:55:473PM | Plasma | Ok | |
| 16 | 02:13:33:940PM | Plasma | Ok | |
| 17 | 02:27:17:440PM | Plasma | Ok | |
| 18 | 02:40:27:143PM | Plasma | Ok | |
| 19 | 02:53:56:457PM | Plasma | Ok | |
| 20 | 03:14:10:940PM | Plasma | Ok | |
| 21 | 04:31:35:133PM | Plasma | Ok | |
| 22 | 04:44:15:463PM | Plasma | Ok | |
| 23 | 04:56:51:667PM | Plasma | Ok | |