Session aimRun technical pusles and then plasma pulses
Session day2025-03-03Operatorrhenriques
Session IDISTTOK_2025033_1Coordinatorrhenriques

Shot Time Operator Iplasma(kA) n(1018m-3) Duration (ms) Pre/post shot comments
518382025-03-03 20:24:29.683rhenriques-0.52300Repeat with different changes | Better
518372025-03-03 20:14:28.069rhenriques-0.5300Repeat with changes in Inversion and current control waveforms for Ip < 0 | Change made it worst
518362025-03-03 20:00:18.787rhenriques-0.5100Repeat with changes on the horizontal field for the inversion to negative Ip | Did not change much, mostly the same
518352025-03-03 19:48:26.047rhenriques-0.49400Going back to current control, repeat 51832 | OK, same result mainly
518342025-03-03 19:41:46.845rhenriques-0.4200Trying again to see if there are signs of any control attempt | Exact same result, this needs further investigation as it was supposed to control or at least try to
518332025-03-03 19:31:21.543rhenriques-0.41500Repeat trying feedback control on horizontal field and shortened transition inversion time | Very different results, does not seem to have controlled the position, maybe wrong config
518322025-03-03 19:15:05.311rhenriques-0.48500Exact same repeat to check improvements in conditioning | Very similar, maybe a tiny better but could be related with prefill
518312025-03-03 19:06:21.144rhenriques-0.45800Repeat with further changes on inversion waveform to for Ip < 0 | beter transition and higher current just after transition
518302025-03-03 18:55:45.022rhenriques-0.46100Repeat with changes on the horizontal field for the inversion to negative Ip | longer negative Ip after inversion
518292025-03-03 18:47:17.938rhenriques-0.5900Exact same repeat to check improvements in conditioning | Slightly better current with wider peak
518282025-03-03 18:35:28.597rhenriques-0.6100Repeat with inverstion back as in 51825 and horizontal current for Ip < 0 changed | More current
518272025-03-03 18:19:40.186rhenriques-0.42100Repeat with reverted horizontal field coil current waveform for end of negative cycle, while keeping the same transition wf as previous | Invesrion is still bad, although end of negative cycle is back
518262025-03-03 18:10:49.494rhenriques-0.27300Repeat with changes on horizontal field at end of negative cycle and druing inverstion to positive Ip | Worsen the transition, but there was also more prefill gas, which reduces Ip
518252025-03-03 17:57:16.05rhenriques-0.42400Repeat with -60 A of Horizontal field in Inversion to Ip > 0 | Higher current but starting inversion is worse
518242025-03-03 17:46:59.613rhenriques000Repeat to check repeatability again | Good, very similar pulse
518232025-03-03 17:30:10.149rhenriques-0.37400Repeat to check repeatability | 1st semi-cycle came ON and prevented 1st inversion to happen successfully
518222025-03-03 17:26:15.744rhenriques-0.600Repeat with same configuration as 51784 | OK
518212025-03-03 17:21:50.293rhenriques000Repeat #51784 | Wrong loaded configuration (it was the same as previous pulse)
518202025-03-03 16:52:39.927rhenriques000Repeat for ADC chopper integrator modules EO calibration (diagnostic cable disconnect from acquistion) | OK, data needs to be processed and analysed
518192025-03-03 16:10:30.487rhenriques000Repeat previous with current in all 3 PF circuits | OK, voltage measurement for Horizontal coil needs to be checked
518182025-03-03 15:58:53.314rhenriques000Repeat with trying again with 510 | Good, with 510 the power supply is quite when 0 A are requested
518172025-03-03 15:49:16.779rhenriques000Repeat previous with Zero current offset for vertical PS set to 510 (instead of 509) | Pulse ran with 509...
518162025-03-03 15:39:15.012rhenriques000Repeat with Vertical PS ON | PS is trying keeps performing switching at max frequency despite zero current being exactly 0
518152025-03-03 15:34:23.089rhenriques000Dry run without currents (informatic shot) to check zero point of vertical field PS current | OK, zero point well centered at 0 A
518142025-03-03 15:24:20.933rhenriques000Informatic pulse to check timing board | Everything looks OK