| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Alex Ince-Cushman,Robert Granetz |
| Physics operator(s): | Bill Rowan |
| Engineering operator(s): | Andy Pfeiffer,Bill Cochran,Ed Fitzgerald |
| Engineering Operator Run Comment |
| am: MP520, Rotation and Ti during sawteeth pm: MP_runaway, Disruption r |
| Session Leader Plans |
| Entered: Feb 19 2008 02:23:34:930PM |
| Author: Alex Ince-Cushman |
| MP 520: Sawtooth Evolution Studies
Session Leader: Alex Ince-Cushman (afternoon) PhysOp: Bill Rowan The goal of this experiment is to measure the evolution of the toroidal rotation and ion temperature profiles within a single sawtooth oscillation. Diagnostics: Hirex, Thomson, Edge Thomson, GPC, Bolometer arrays, McPherson, Chromex, FRC Step 1: (1-2 shots) Locked mode shots for velocity calibration. Based on Shot 10802015001. Argon puff 200ms @ 0.3s TURN CRYOPUMP ON Step 2: (6-8): Establish USN, 1 MA, pumped L-mode with 2 MW ICRF at nl04=1.0e20. Then Ramp up RF and puff. Load 1080130025. Argon pressure @ 1.5 psi, 500ms puff @ 0.3s, 2MW RF Argon pressure @ 2.3 psi, 1.0s puff @ 0.3s, 3.5 MW RF Argon pressure @ 2.8 psi, 1.0s puff @ 0.3s, 4.5 MW RF Step 3: (3-4): Adjust RF Phasing to optimize sawtooth period. Step 4: If time permits attempt discharges at Ip = 0.8 MA and 1.2 MA |
| Entered: Feb 19 2008 05:13:55:330PM |
| Author: Robert Granetz |
| MP #530? -- Disruption runaway studies, Part I Session leader: R. Granetz Physics operator: W. Rowan ECDC overnight and bake at 60 C. NOTE: WE WILL NEED A FEW MINUTES IN THE CELL TO SWITCH OVER TO THIS HALF-DAY DISRUPTION RUN. Power systems as on 1080214003 (0.75 MA, 5.4 T, LSN, nl_04=0.3e20 m-2, LH target) A-coil configuration: normal [+Dtop -Dbot -Jtop +Jbot] and enabled. Gas Setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar + 2 psi Ne Hybrid DISABLED (PG1) leave B-side upper as is Hybrid disabled fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) No NINJA for this run. Enable the following, assuming no vacuum problems: Z-bolo shutters, VUV Necessary diagnostics: LH hard x-ray array WIDE1 and WIDE2 video cameras SX arrays with fast sampling Plasma current Rogowski ------------------------------------------------------------------------------- ICRF setup: no ICRF today LHCD setup: 85 kW/klystron; t=0.80-1.05 s (might be able to delay turn-on until t=0.90 s after the first couple of shots). 90 deg phasing. LPI setup: normal pellet size; will fire at t=1.000 s. Disruption gas jet: 15%/85% Ar/He at 50 bar; will fire at t=1.000 s. ------------------------------------------------------------------------------- Run plan: There are five different types of disruptions that we can easily and reproducibly trigger. Based on the observations in FT-U, the creation of runaways has much higher probability when using an LH seed, but it's still less than 50%. Therefore each type of disruption should be tried several times, as time allows. All disruptions will be triggered at t=1.0 s, with LH remaining on until the disruption, if possible. In addition, we might want to try starting a current ramp just before the disruption, as this should result in a step increase in the loop voltage. We may also try turning off the LH a few ms before the disruption to see if we can take advantage of the hard x-ray increase seen on the specified starting shot. 1) Trigger a locked mode disruption using appropriate pre-programmed A-coil waveform (zero amps starting at t=0.95 s). Check for signs of runaways using the previously specified diagnostics. Repeat up to 2 more times if time allows. 2) Trigger a VDE disruption by kicking the plasma downward and then turning off the ZCUR feedback at t=1.000 s. (See ZCUR programming for shot 1060414012, for example, except do it at t=1.000 s) Check for signs of runaways. Repeat up to 2 more times if time allows. 3) Trigger a density limit/marfe disruption. Note that this might be problematic if the rising density reduces the LH accessibility. Check for signs of runaways. Repeat up to 2 more times if time allows, if the LH accessibility is not found to be an issue. 4) Trigger a disruption with lithium pellet injection at t=1.000 s. Check for signs of runaways. Repeat up to 2 more times if time allows. 5) Trigger a disruption by firing the gas jet at t=1.000 s using an optimal gas mixture. Check for signs of runaways. Repeat up to 2 more times if time allows. This totals up to 15 discharges, but since they will all be disruptions, there will probably be some fizzles. |
| Physics Operators Plans |
| Entered: Feb 19 2008 04:18:33:660PM |
| Author: Bill Rowan |
| Physop Plan for 2008 Feb 20, Run 1080220
am: MP520, Rotation and Ti during sawteeth and pm: MP_runaway, Disruption runaway generation with LH SL: am: Ince-Cushman; pm: Granetz Physop: Rowan ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1080215001 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, DNB, Z-bolo Torvac gatevalve toggle (yes/no): no Boronization(yes/no): no Overnight ECDC (yes/no): yes ICRF(yes/no): yes LH(yes/no): yes DNB(yes/no): no Cryopump (yes/no): yes 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 |
| Session Leader Summaries |
| Entered: Feb 20 2008 02:08:40:767PM |
| Author: Alex Ince-Cushman |
| MP 520: Sawtooth Evolution Studies
The locked mode portion of the experiment was successful. Shot 1 was a steady locked mode discharges with sufficient argon levels to provide a good wavelength calibration for Hirex-Sr. The intra-sawtooth profile measurement portion of the run was partially successful. Despite good performance of the RF system we were unable to increase the sawtooth period significantly beyond ~20ms. We did, however, obtain useful data at the maximum Hirex-sr frame rate (200Hz) on 13 of the 16 attempted discharges: 1 locked mode: 1 2 Fizzles/duds: 2, 13 7 Full length sawtoothing shots: 3, 4, 6, 7, 8, 10, 12 6 Early disruptions: 5, 9, 11, 14, 15, 16 In an attempt to increase the sawtooth period we increased the current to 1.2MA (from 1.0MA). Although this did not significantly increase the sawtooth period it did increase the sawtooth inversion radius. Preliminary analysis of the Hirex-sr data indicates that this increase inversion radius was observed in both the ion & electron temperature profiles as one might expect. The â??tooth-to-toothâ?? repeatability was quite good during the flattop portions of many of the discharges and so it should be possible to â??addâ?? sawtooth oscillations together to improve the quality of the data. |
| Entered: Feb 20 2008 08:48:35:383PM |
| Author: Robert Granetz |
| Run summary for Wednesday 20 Feb 2008
pm: MP530 Disruption runaways studies Session leader: R. Granetz (pm) Physics operator: W. Rowan The focus of this half-day run was to use LHCD to produce a seed population of fast electrons (100-200 keV) and then test out several disruption scenarios in the hopes of finding a reliable way of producing a significant population of relativistic runaway electrons during the disruption current quench. This run is the first in a long-term series of experiments that will concentrate on studying disruption runaway physics and mitigation as part of an ITPA MHD high priority task for ITER. We used a target shot from a recent LHCD run that had copious amounts of fast electrons (1080214003), with a line-average density of just 3e19 m-2. We tried triggering disruptions using several different types of disruptions: (1) locked modes, (2) VDEs, and (3) lithium pellet injection. We didn't get a chance to try high-density disruptions or gas jet disruptions. The primary signal for indicating the existence of relativistic runaways is the temporal behavior of the plasma current decay. Typical current quenches are 1-2 ms long. A significantly longer decay, particularly if the current exhibits a plateau, is an indication of runaways. Other possible indicators are high energy tails on the LH hard x-ray array, and synchrotron emission on the WIDE2 video view. Based on those criteria, our results today showed that VDEs don't show any evidence of runaways during the quench. Some of the locked mode disruptions (see shot 20) and lithium pellet disruptions (shots 27, 28) showed longer-than-normal current quenches. Shot 21 was a reasonable control shot (i.e. similar, but with no LHCD) for shot 20, and had a normal 1-2 ms quench. However, the data are not really clear cut, and none of the hard x-ray energy spectra showed tails in the 100-200 keV ranges during the current quench, which might be expected if there were MeV runaways. There may have been just a hint of synchrotron emission on shot 20, but it's very difficult to dig out that effect from the video image in the middle of a current quench, when much of the image is saturated. So we have some promising leads for the next time we try this. One other thing that we learned is that the LPI should be loaded with normal-sized pellets. For today it only had small pellets, and we fired multiple pellets simultaneously to guarantee a disruption, but the timing wasn't always "simultaneous" enough. Also, although mode locking could be reliably and reproducibly produced at a given time, the timing of the ensuing disruption was not prompt nor reproducible. We'll have to improve on that as well. |
| Physics Operator Summaries |
| Session Leader Comments | |||
| Feb 20 2008 09:35:07:883AM | 1080220001 | Alex Ince-Cushman | Good locked mode discharge (0.7s-1.5s). The rotation seem to be locking in two stages (first step at 0.7 and then another at 0.9). |
| Feb 20 2008 10:02:42:993AM | 1080220003 | Alex Ince-Cushman | Good shot. 2MW of RF coupled with no trips. Clean sawteeh from about 0.8s to 1.5s (period of ~16ms, with a Te(0) variation of 1.8kev-3.1kev). For the next shot we will increase the RF power to 3.5MW and increase the Ar pressure to 2.3psi. The rotation seems to be evolving on a much slower time scale than usual. There is an unexplained co-current bump in rotation at t = 0.85. |
| Feb 20 2008 10:10:15:067AM | 1080220004 | Alex Ince-Cushman | Another good shot. 3.5MW of RF coupled (one trip at 1.45s). Disruption during ramp down. Clean sawteeh from about 0.8s to 1.45s (period of ~19ms, with a Te(0) variation of 2.3kev-4.0kev). For the next shot we will increase the RF power to 4.5MW. We will keep the Ar pressure at 2.3psi. |
| Feb 20 2008 10:35:37:533AM | 1080220005 | Alex Ince-Cushman | Disruption at 0.9s. 4.5MW of RF coupled (two trips at 0.5s & 0.68s). Sawteeh period of ~19ms, with a Te(0) variation of 2.5kev-4.5kev). |
| Feb 20 2008 10:39:56:240AM | 1080220006 | Alex Ince-Cushman | 4.5MW of RF coupled (multiple trips but clean trace from 0.6-1.1s). Sawteeh period of ~20ms but most of them are stuttering. Te(0) variation of 2.5kev-4.5kev). For the next shot we will adjust the phasing of J to try to increase the sawtooth period. |
| Feb 20 2008 10:53:20:223AM | 1080220007 | Alex Ince-Cushman | 4.5MW of RF coupled (one trip at 1.3s). Sawteeh period still at ~20ms but they are cleaner than the previous shot. Te(0) variation of 2.5kev-4.5kev. |
| Feb 20 2008 11:22:33:917AM | 1080220008 | Alex Ince-Cushman | 4.5MW of RF coupled (no trips). Sawtooth period still at ~18ms. Te(0) variation of 2.5kev-4.5kev. For the next shot we will go to higher current to try and move the inversion radius out and hopefully increase the sawtooth period. |
| Feb 20 2008 11:26:32:060AM | 1080220009 | Alex Ince-Cushman | Curent at 1.2MA. Disruption at 0.8s. 5.8MW of RF coupled (Multiple trips). Irregular sawtooth periods, ~16-25ms. Te(0) variation of 2.3kev-4.8kev. For the next shot we will go to lower density to try and increase the temperature. Also we will back off on RF power to try and reduce the number of trips. |
| Feb 20 2008 12:03:17:853PM | 1080220010 | Alex Ince-Cushman | Disruption at 1.47s. Curent at 1.1MA, nl04 t ~0.8e20. 4.5MW of RF (Multiple trips but clean from 0.55-1.15). Regular sawteeth, period ~18ms. Te(0) variation of 2.4kev-4.7kev. |
| Feb 20 2008 11:57:32:283AM | 1080220011 | Alex Ince-Cushman | Disruption at 0.95s. Curent at 1.1MA, nl04 to ~0.7e20. 4.6MW of RF (Multiple trips but clean from 0.77-0.95). Irregular sawteeth, period ~13-18ms. Te(0) variation of 2.6kev-5.0kev. For the next shot we will go back to normal density and scan the field to try and increase the sawtooth period. |
| Feb 20 2008 12:11:41:003PM | 1080220012 | Alex Ince-Cushman | Disruption at 1.45s. Curent at 1.1MA, nl04 ~0.8e20. 4.5MW of RF (Multiple trips). Field was varied from 5.3 to 5.6, slightly shorter sawtooth period at high field but it is not a very large effect (14ms at 5.6T vs 19 ms at 5.3T). For the next shot we will run a 0.6MA shot to reduce the inversion radius. |
| Feb 20 2008 12:53:48:020PM | 1080220014 | Alex Ince-Cushman | Disruption at 0.67s. Curent at 0.6MA. Attempt at 4.5MW of RF (Multiple trips). Retry next shot. |
| Feb 20 2008 12:55:18:630PM | 1080220015 | Alex Ince-Cushman | Another early disruption at 0.74s. Current at 0.6MA. Attempt at 4.5MW of RF (Multiple trips). For next shot increase current to 0.8MA. |
| Feb 20 2008 01:06:39:190PM | 1080220016 | Robert Granetz | We're switching to the afternoon miniproposal (MP 530, disruption runaway studies) after this shot. We're having a cell access between shots 16 and 17 to allow for setup of the lower hybrid system. I'll also open up the high-pressure gas bottle for the gas jet system. |
| Feb 20 2008 01:11:22:570PM | 1080220016 | Alex Ince-Cushman | Yet another early disruption (0.8s). Current at 0.8MA. RF at 4.5MW. Irregular sawteeth with periods of ~10-17ms. Te(0) variation of 2.0kev-3.5kev. |
| Feb 20 2008 01:15:53:470PM | 1080220017 | Robert Granetz | Shot 17 will be a locked mode disruption at around t=1.0 s. The lower hybrid will turn on at t=0.9 s and turn off at t=1.2 s (or at the disruption, which ever comes first). |
| Feb 20 2008 01:39:32:283PM | 1080220017 | Robert Granetz | Shot 17 -- Plasma. Disrupted at t=0.39 s due to a moly injection. Not useful. |
| Feb 20 2008 01:48:47:230PM | 1080220018 | Robert Granetz | Shot 18 -- Fizzle. |
| Feb 20 2008 02:13:27:553PM | 1080220019 | Robert Granetz | Shot 19 -- Plasma. Locked mode starts around t=1.15 s, but plasma doesn't disrupt until t=1.565 s. The current quench has a curious flat glitch, but shot 17 (no fast electrons) had this also. There were plenty of fast electrons on this shot, with the hard x-rays increasing after LH turns off. Next shot: try programming A-coils for 4000 amps at t=0.95 s, rather than 0 amps. |
| Feb 20 2008 02:29:38:853PM | 1080220020 | Robert Granetz | Shot 20 -- Plasma. Locked mode begins around t=1.12 s, but the plasma doesn't disrupt until very late in rampdown. There were gobs of hard x-rays, AND THE PLASMA CURRENT QUENCH WAS DEFINITELY NOTICEABLY STRETCHED OUT...30 ms !!! Was this a real disruption? Next shot: try same thing at 1 MA, hoping the the locked mode disruption occurs much sooner. |
| Feb 20 2008 02:39:32:710PM | 1080220021 | Robert Granetz | Shot 21 -- Plasma. 1 MA. Got a locked mode starting at t=1.17 s, but again it didn't disrupt until t=1.748 s. This time the LH faulted a lot, and the hard x-rays were low, and the current quench was only 1-2 ms. So this could be a good comparison to shot 20. Next shot: try a VDE disruption |
| Feb 20 2008 02:56:23:230PM | 1080220022 | Robert Granetz | Shot 22 -- Plasma, but disrupted early (t=0.74 s) due to high-Z injection. Next shot: try again for a VDE around t=1.0 s. |
| Feb 20 2008 03:06:01:647PM | 1080220023 | Robert Granetz | Shot 23 -- Plasma. VDE disruption at t=1.014. LH faulted, but still produced appreciable hard x-rays. Normal 1-2 ms current quench. Next shot: repeat for better LH. |
| Feb 20 2008 03:17:22:440PM | 1080220024 | Robert Granetz | Shot 24 -- Plasma. VDE disruption at t=1.013 s. LH, hard x-rays. Typical 2 ms current quench. Next shot: fire LPI at t=1.0 s. Put ZCUR back to normal. |
| Feb 20 2008 03:28:13:437PM | 1080220025 | Robert Granetz | Shot 25 -- Plasma, but disrupted early (t=0.625 s). Next shot: try LPI again at t=1.0 s. |
| Feb 20 2008 03:53:41:293PM | 1080220026 | Robert Granetz | Shot 26 -- Plasma, but disrupted very, very early (t=0.21 s) Next shot: try again for LPI disruption at t=1.0 s. |
| Feb 20 2008 04:36:01:547PM | 1080220027 | Robert Granetz | Shot 27 -- Plasma. LPI disruption at t=1.010-1.017 s, so it was another extended current quench, but not as long at shot 20. Could this be an example of MeV runaways? Need to check with Andrea. Next shot: another LPI disruption at t=1.0 s. |
| Feb 20 2008 04:21:34:390PM | 1080220028 | Robert Granetz | Shot 28 -- Plasma. LPI disruption at t=1.0 s. Current quench lasted 10 ms !! Need a control shot to compare. Next shot: LPI, but no LHCD. This will therefore be a control shot for comparison. |
| Feb 20 2008 04:23:46:877PM | 1080220029 | Robert Granetz | Shot 29 -- Plasma, but disrupted very, very early (t=0.2 s), with lots of little injections. Next shot: try again for LPI disruption at t=1.0 s, with no LHCD. Still trying for a control shot. |
| Feb 20 2008 04:42:45:337PM | 1080220030 | Robert Granetz | Shot 30 -- Plasma. LPI disruption at t=1.0, but the multiple pellet pieces hit at different times, so the disruption timing is not clear. Try one more time with the LPI and no LH |
| Feb 20 2008 04:47:58:577PM | 1080220031 | Robert Granetz | Shot 31 -- Plasma, but disrupted very early (t=0.62 s). Next shot: go back and repeat shot 20 (locked mode disruption) with LHCD. |
| Feb 20 2008 05:01:40:890PM | 1080220032 | Robert Granetz | Shot 32 -- Plasma, but no clear major disruption. Looks like a bunch of small disruptions spread out over a long time. Not a good shot to study. End of run. |
| Physics Operator Comments | |||
| Feb 20 2008 08:32:46:877AM | Bill Rowan | loaded from 1080215001
import segment 1 from 1080219012 load pcs | |
| Feb 20 2008 08:58:04:107AM | 1080220001 | Bill Rowan | shot 001
copied shot 1080215001 for segments 2,3,4. segment 3 is on: SNL copied segment 1 from 1080219012 PG1: argon, on at 0.3 s; off at 0.5 s, hybrid enabled cryopump off plasma |
| Feb 20 2008 09:32:37:880AM | 1080220002 | Bill Rowan | shot 002.
load from 1080130025. segment 4 is on import segment 1 from 1080220001 RF on USN cryo on dud |
| Feb 20 2008 09:44:33:693AM | 1080220003 | Bill Rowan | shot 003
increased prefill to 50 ms plasma |
| Feb 20 2008 09:59:40:083AM | 1080220004 | Bill Rowan | 004.
pg1: 1.0 s puff at 0.3 s, 2.3 psi, argon plasma disrupted during rampdown @1.6 s |
| Feb 20 2008 10:12:49:867AM | 1080220005 | Bill Rowan | 005.
no pcs changes li pellet injection expected at 1.45 s at the time of the shot chamber pressure was 1.4e-07 plasma, disruption at 0.9 s |
| Feb 20 2008 10:20:02:220AM | 1080220005 | Bill Rowan | increase in sxr and 2pi bolo at 0.85 s: Mo injection (see spec logbook entry) |
| Feb 20 2008 10:28:53:773AM | 1080220006 | Bill Rowan | 006.
no pcs changes Plasma. Disruption during rampdown at 1.6 s |
| Feb 20 2008 10:53:56:680AM | 1080220007 | Bill Rowan | 007.
no pcs changes repeat the last shot Plasma. |
| Feb 20 2008 11:08:02:693AM | 1080220008 | Bill Rowan | 008.
no pcs changes Plasma |
| Feb 20 2008 11:19:44:083AM | 1080220009 | Bill Rowan | 009.
Increase the plasma current Plasma. disruption at 0.83 s |
| Feb 20 2008 11:33:04:863AM | 1080220010 | Bill Rowan | 010.
Decrease the nl_04 demand by 10% to 0.8e+20 Plasma. Almost made it to ramp down. Disruption shortly after the time that the pellet enters the plasma. density: nl_04 approx 0.8e+20 |
| Feb 20 2008 11:45:49:800AM | 1080220011 | Bill Rowan | 011.
Li pellet injection stopped to save pellets for the pm run Reduce nl_04 demand to 0.6e+20 Plasma Disruption at 0.9 s â??rainâ?? from the top after the shot. |
| Feb 20 2008 12:08:09:310PM | 1080220012 | Bill Rowan | 012.
reloaded 1080220010 inserted a small scan in the TF to assist in searching for the proper rf phasing Plasma |
| Feb 20 2008 12:16:35:633PM | 1080220013 | Bill Rowan | 013.
removed the BT ramp Reduced the plasma current to 0.6 MA Fizzle |
| Feb 20 2008 12:40:56:410PM | 1080220014 | Bill Rowan | 014.
no pcs changes Plasma something came in at 0.5 s observe sudden increases on h-alpha density response to this Finally disrupted at 0.7 s |
| Feb 20 2008 12:48:40:607PM | 1080220015 | Bill Rowan | 015.
no pcs changes Plasma Very similar to the last shot. |
| Feb 20 2008 01:01:11:873PM | 1080220016 | Bill Rowan | 016.
IP demand increased to 0.8 MA Plasma. Disruption at 0.8 s |
| Feb 20 2008 01:40:50:033PM | 1080220017 | Bill Rowan | 017.
End of MP 520. Start on MP_runaway. No cryo for the next shot. load from 1080214003 A-coil cur set to 0 at 0.95 s B21_Proj wire: I gain set to 0 at 0.95 s P gain set to 0 at 0.95 s Integrator C set to 0 at 0.95 s V10 (ACOIL_CUR) set to 0 all the way across Import segment 1 from shot 1080220016 no cryo pump on the next shot. reduced the prefill to 24 ms disable b-side lower (that is the argon) Plasma Disruption at 0.4 s Moly monitor increased toward the disruption. So high z injection |
| Feb 20 2008 01:50:36:107PM | 1080220018 | Bill Rowan | 018.
No pcs changes Fizzle |
| Feb 20 2008 02:26:30:413PM | 1080220020 | Bill Rowan | 020.
V10 (ACOIL_CUR) set to 4000 (max) at 0.95 s cryo will not be used for the remainder of the day drop prefill to 20 ms from 22 ms Plasma |
| Feb 20 2008 02:31:40:340PM | 1080220021 | Bill Rowan | 021.
increase IP to 1 MA Plasma |
| Feb 20 2008 02:54:21:400PM | 1080220022 | Bill Rowan | 022.
reloaded 1080214003 set zcur in similar fashion to 1060414012 but the timing is for a vde at 1 s imported 1080220021 segment 1 into segment 1 Plasma disruption at 0.74 s possibly another moly injection |
| Feb 20 2008 03:05:48:537PM | 1080220023 | Bill Rowan | 023
No pcs changes Plasma disruption at 1.0 s |
| Feb 20 2008 03:17:45:520PM | 1080220024 | Bill Rowan | 024
No pcs changes Plasma disruption at 1.0 s |
| Feb 20 2008 03:28:12:157PM | 1080220025 | Bill Rowan | 025.
imported segment 2, shot 1080214003 into segment 2 Li pellet injection at 1.0 s Plasma. Disruption at 0.6 s |
| Feb 20 2008 03:54:34:013PM | 1080220027 | Bill Rowan | 027.
no pcs changes Plasma disruption at 1 s li pellet injection at 1 s |
| Feb 20 2008 04:13:37:490PM | 1080220028 | Bill Rowan | 028.
no pcs changes disruption at 1 s li pellet injection at 1 s |
| Feb 20 2008 04:19:40:183PM | 1080220029 | Bill Rowan | 029.
no pcs changes no LH on this shot li pellet at 1 s Disruption Very early disruption at 0.2 s |
| Feb 20 2008 04:37:29:953PM | 1080220030 | Bill Rowan | 030.
no pcs changes no LH on this shot li pellet at 1 s Plasma |
| Feb 20 2008 04:45:55:900PM | 1080220031 | Bill Rowan | 031
no pcs changes no LH on this shot li pellet at 1 s Plasma disruption at 0.61 s |
| Feb 20 2008 04:58:13:743PM | 1080220032 | Bill Rowan | 032
reload shot 1080220020 this is the locked mode shot LH on this shot Plasma End of the run |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 08:55:47:153AM | Plasma | Ok | |
| 2 | 09:28:14:300AM | Plasma | Ok | |
| 3 | 09:41:13:767AM | Plasma | Ok | |
| 4 | 09:56:38:957AM | Plasma | Ok | |
| 5 | 10:09:56:830AM | Plasma | Ok | |
| 6 | 10:23:29:800AM | Plasma | Ok | |
| 7 | 10:36:42:050AM | Plasma | Ok | |
| 8 | 10:58:45:747AM | Plasma | Ok | |
| 9 | 11:13:21:793AM | Plasma | Ok | |
| 10 | 11:26:43:280AM | Plasma | Ok | |
| 11 | 11:42:38:877AM | Plasma | Ok | |
| 12 | 11:59:19:957AM | Plasma | Ok | |
| 13 | 12:12:04:487PM | Plasma | Ok | |
| 14 | 12:25:09:207PM | Plasma | Ok | |
| 15 | 12:43:56:447PM | Plasma | Ok | |
| 16 | 12:56:44:210PM | Plasma | Ok | |
| 17 | 01:33:26:753PM | Plasma | Ok | |
| 18 | 01:47:01:850PM | Plasma | Ok | |
| 19 | 01:59:32:037PM | Plasma | Ok | |
| 20 | 02:14:13:023PM | Plasma | Ok | |
| 21 | 02:29:03:087PM | Plasma | Ok | |
| 22 | 02:46:01:983PM | Plasma | Ok | |
| 23 | 02:58:39:277PM | Plasma | Ok | |
| 24 | 03:11:27:840PM | Plasma | Ok | |
| 25 | 03:25:08:463PM | Plasma | Ok | |
| 26 | 03:37:41:463PM | Plasma | Ok | |
| 27 | 03:50:41:277PM | Plasma | Ok | |
| 28 | 04:03:19:447PM | Plasma | Ok | |
| 29 | 04:16:56:557PM | Plasma | Ok | |
| 30 | 04:29:29:587PM | Plasma | Ok | |
| 31 | 04:42:47:943PM | Plasma | Ok | |
| 32 | 04:55:35:193PM | Plasma | Ok | |
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| Feb 20 2008 09:27:50:050AM | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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