Session aimPlasma pulses for tomography and conditioning
Session day2025-06-11Operatorrhenriques
Session IDISTTOK_20250611_1Coordinatorrhenriques

Shot Time Operator Iplasma(kA) n(1018m-3) Duration (ms) Pre/post shot comments
530552025-06-11 18:50:44.52rhenriques-67.226Repeat 52999 to assess max Ip and wall conditioning | Higher Ip than in reference
530542025-06-11 18:45:17.629rhenriques45.522Repeat changing the position further inwards | OK
530532025-06-11 18:40:41.281rhenriques45.422Repeat with further adjustments | Better
530522025-06-11 18:35:22.501rhenriques46.922Repeat with further adjustments | fringe jump happening earlier
530512025-06-11 18:31:10.904rhenriques45.522Repeat with further adjustments | Similar result to previous
530502025-06-11 18:24:58.101rhenriques47.522Repeat trying to improve the position throught the 1st semi-cycle | No clear improvement at the begining and still fringe jump towards the end
530492025-06-11 18:20:26.689rhenriques45.322Going back to as in 53043 | Ne with fringe jump again
530482025-06-11 18:14:49.653rhenriques45.722Going back to position where there was no fringe jump, as in 53042 | Went to further out with position
530472025-06-11 18:10:40.041rhenriques47.722Repeat changing the position further innwards | Ne fringe jump happens earlier
530462025-06-11 18:06:34.436rhenriques47.522Straight repeat to get better density signal | Ne still with fringe jump, but happening later
530452025-06-11 18:02:09.391rhenriques47.722Straight repeat to get better density signal | Density still with fringe jump
530442025-06-11 17:57:35.995rhenriques4722Straight repeat to check if it is impurities | Density seems to be lower but not clear due to fringe jump
530432025-06-11 17:52:13.20rhenriques47.522Repeat changing the position further innwards | Density clearly higher now
530422025-06-11 17:46:24.228rhenriques45.522Repeat changing the position further innwards | Density still similar and position more inwards
530412025-06-11 17:41:31.32rhenriques45.722Repeat changing the position further innwards | Density is more or less the same as in previous, position seems to be more inwards
530402025-06-11 17:35:05.948rhenriques45.722Repeat changing the position further innwards | It still seems to be more centered than in previous
530392025-06-11 17:29:44.064rhenriques45.122Repeat changing the position even further | Plasma seems to be even more centered
530382025-06-11 17:24:03.405rhenriques44.522Repeat adjusting position of 1st cycle (pushing inwards) | BD is still behaving the same, plasma is now more centered
530372025-06-11 17:15:39.38rhenriques4422Straight repeat for BD repeatability check | Still the same
530362025-06-11 17:09:33.801rhenriques4422Repeat with Bh at -76 A | BD happens at 195.5 ms but faster rise reaching flattop 0.1 ms earlier than previous pulse
530352025-06-11 17:05:15.74rhenriques4422Repeat with Bh at -80 A | BD happens at 195.3 ms
530342025-06-11 17:01:18.544rhenriques43.8522Repeat with Bv at -120 A and Bh at -60 A for BD | BD happens late at 197.3 ms
530332025-06-11 16:56:14.265rhenriques43.922Repeat with Bv of -123 A for BD | BD happens at 196 ms
530322025-06-11 16:50:49.352rhenriques43.922Reepat with Bv of -117 A for BD | BD happens at 196.2 ms
530312025-06-11 16:39:54.177rhenriques4422Repeat with Bv of -115 A for BD | BD at 196.3 ms
530302025-06-11 16:34:58.325rhenriques43.822Repeat with Bv of -128 A for BD | BD happens later at 200.5 ms
530292025-06-11 16:30:06.376rhenriques4422Repeat with Bv of -120 A for BD | BD starts at 195.9 ms, inversion looks quite bad
530282025-06-11 16:25:04.876rhenriques4422Repeat | Plasma starts at 196.8 ms
530272025-06-11 16:21:06.671rhenriques000Repeat with Bv of -90 A for BD | Pulse aborted, no plasma
530262025-06-11 16:16:44.731rhenriques4422Repeat with BD at -110 A for BD | Better, BD happens at 196.5 ms and transition is good
530252025-06-11 16:12:28.535rhenriques4422Repeat with change on Bv (-170 A) for BD | BD starts later than in 53023
530242025-06-11 16:08:26.354rhenriques4422Straight repeat to check repeatability of BD | only neg. cycle
530232025-06-11 16:03:09.709rhenriques43.822Repeat with 1st premag at -60 A | plasma starts at 200.5 ms
530222025-06-11 15:57:20.498rhenriques43.822Repeat with approx. 180 ms recovery time for primary field | BD starts at 200.7 ms (too late)
530212025-06-11 15:45:38.755rhenriques-4422Straight repeat to check repeatability of BD | neg cycle only
530202025-06-11 15:37:07.137rhenriques43.922Back to 2 semi-cycles and increasing 1st premag to 12 ms long | plasma starts at 100.55 ms, although first attempt happens at 96.9 ms
530192025-06-11 15:29:56.11rhenriques4422Straight repeat to check repeatability of BD, with 6 semi-cycles | plasma starts at 101.7 ms
530182025-06-11 15:24:07.818rhenriques4422Straight repeat to check repeatability of BD | Both cycles, but plasma starts late at 100.2 ms
530172025-06-11 15:18:44.43rhenriques4422Straight repeat to check repeatability of BD | No 1st semi-cyle, only neg.
530162025-06-11 15:10:27.661rhenriques43.922Straight repeat to check repeatability of BD | Both semi-cycles, plasma starts at 100.7 ms
530152025-06-11 15:05:38.985rhenriques43.922Going back to BD repeatability optimization. trying 10 ms long 1st premag (instead of 6 ms) | 1st semi-cycle only, BD the same as in previous pulse, plasma starts at 95.8 ms
530142025-06-11 14:20:34.071rhenriques4422Repeat with position changes in opposite direction | OK
530132025-06-11 14:10:43.048rhenriques43.922Repeat with vertical plasma movements for tomography diagnostic | variations of position observed in magnetic diagnostics, BD still the same as in previous
530122025-06-11 14:02:18.382rhenriques4422Repeat with 80 ms recovery for primary field | Same behaviour again
530112025-06-11 13:51:07.447rhenriques4422Repeat with 40 ms of recovery for first premag phase | 1st cycle is back but still starting late, after BD phase
530102025-06-11 13:40:23.465rhenriques-43.922Repeat with shorte initial premag (6 ms long instead of 10 ms) | Mostly the same again
530092025-06-11 13:35:58.908rhenriques-4422Repeat with 20 ms recovery for primary field (instead of 10 ms only) | Same result again
530082025-06-11 13:23:51.255rhenriques-43.822Repeat with modified breakdown aiming at repeatability | BD not successful, only got the negative cycle
530072025-06-11 13:09:32.098rhenriques44.222Repeat with 2 semi-cycles only | only got 1st semi-cycle
530062025-06-11 11:46:33.053rhenriques44.222Repeat | 2nd pos. semi-cycle failed
530052025-06-11 11:37:52.868rhenriques44.322Repeat | OK, 5 semi-cyles out of 6.
530042025-06-11 11:32:12.922rhenriques000Repeat with further adjustments on positioning | Pulse aborted, no plasma
530032025-06-11 11:18:35.293rhenriques44.322Repeat trying to adjust position of neg. cycle | Position changed in the correct direction
530022025-06-11 11:10:36.588rhenriques44.222Repeat with adjustments to get Ip at 4 kA for both pos. and neg. cycles | OK, but lost 2nd pos. semi-cycle, 2nd neg. cycles position not centered
530012025-06-11 11:03:00.651rhenriques-4.44.4522Repeat with Ip clipped to approx. 4 kA | Transitions for first 4 cycles are successful, Ip for neg cycle is -4.4 kA
530002025-06-11 10:54:37.578rhenriques-5.65.822Repeat with shorte cycle (22 ms instead of 26 ms) | Same as previous but with shorter cycle duration
529992025-06-11 10:45:23.946rhenriques-5.655.4526Repeat to check evolution of conditioning | Mostly the same
529982025-06-11 10:39:33.951rhenriques-5.45.1526Repeat last plasma pulse of previous session, 52996 | OK, Ip lower than in reference
529972025-06-11 10:25:26.07rhenriques000Dryrun (file: dryrun_standard_2025_04_04_52149.cfg), no TF | PF currents OK