Session aimTechnical pulses (with plasma) after unplanned power outage, assess conditioning
Session day2025-04-30Operatorrhenriques
Session IDISTTOK_20250430_1Coordinatorrhenriques

Shot Time Operator Iplasma(kA) n(1018m-3) Duration (ms) Pre/post shot comments
525512025-04-30 17:56:29.887rhenriques1.43.826Repeat | OK
525502025-04-30 17:39:41.635rhenriques1.43.926Repeat | OK, no drift observed
525492025-04-30 17:34:18.304rhenriques1.43.826Repeat | OK
525482025-04-30 17:30:13.452rhenriques1.43.826Repeat | Drift between pos and neg is present since quite early
525472025-04-30 17:24:30.946rhenriques1.43.826Repeat | OK
525462025-04-30 17:20:28.254rhenriques1.4426Repeat | OK
525452025-04-30 17:15:56.355rhenriques1.4426Back to conditioning pulse, repeat 52542 | OK
525442025-04-30 17:05:30.934rhenriques3726Repeat with lower prefill pressure | Higher Ip but not significantly much higher, so condition is still not there
525432025-04-30 16:56:57.672rhenriques2.456.126Repeat 52529 to assess maximum current available after a few pulses of conditioning | OK, but still far from reference before power outage (52446)
525422025-04-30 16:44:39.78rhenriques1.4426Repeat | OK, drift starts towards the end
525412025-04-30 16:33:16.601rhenriques1.4426Repeat | OK, no drift
525402025-04-30 16:25:13.634rhenriques1.44.326Repeat | OK, but drift between pos and neg cicles is well present since early beginning
525392025-04-30 16:16:55.596rhenriques1.4426Repeat | OK, start drifting at the really end
525382025-04-30 16:08:15.67rhenriques1.44.226Repeat | OK, no drift observed
525372025-04-30 15:18:04.343rhenriques1.44.626Repeat | Drift still there
525362025-04-30 15:12:19.285rhenriques1.44.626Repeat for conditioning | Drift between postitive and negative cycle reapeared
525352025-04-30 14:56:28.415rhenriques1.4426Repeat to check drift observed in previous pulse | drift no longer observed, positive and negative cycles much more alike
525342025-04-30 14:51:08.845rhenriques1.44.626Repeat with 30 cycles (instead of 14) | All cycles despite increasing (shift) different behaviour between positive and negative cycles
525332025-04-30 14:46:03.37rhenriques1.44.126Repeat with Spectrometer gain adjusted to match reference | lower pressure during pulse than in previous
525322025-04-30 14:42:02.83rhenriques1.44.226Repeat 52389 (AC discharge at 1.3 kA) | All cycles worked, density is higher and gas pressure during pulse is higher than in reference, despite lower prefill pressure
525312025-04-30 14:32:16.431rhenriques-2.65.417Repeat 52232 (old 1s AC reference when plasma was dirty) | negative semicycles failed towards the end, Ip usually well above 1 kA so recipe for inversion may not work so well
525302025-04-30 14:22:30.751rhenriques2.66.9326Repeat with more cycles (6) | Only positive cycles
525292025-04-30 14:17:59.206rhenriques2.76.326Repeat 52446 (high current pulse request) to assess conditionining | 1 kA and below but goes to 2.7 kA at the end
525282025-04-30 14:12:26.922rhenriques000Dryrun (file: dryrun_standard_2025_04_04_52149.cfg) | PF and TF currents OK