Session aimVertical plasma position feedback with HIBD
Session day2016-06-20Operatorfernando
Session IDISTTOK_2016620_1Coordinatorrhenriques

Shot Time Operator Iplasma(kA) n(1018m-3) Duration (ms) Pre/post shot comments
401602016-06-20 17:14:40.704fernando4440testing upper limits (+40 mm) on positive cycles and lower limits (-40 mm) on negative cycles / disruption at +25 mm
401592016-06-20 17:05:58.467fernando4480testing lower limits for vertical plasma position (-40 mm) / disruption at -27.5 mm
401582016-06-20 17:00:29.329fernando4460repeat previous with HIBD offset -0.0025 / disruption at -25 mm
401572016-06-20 16:52:50.51fernando4460testing upper limits for vertical plasma position (+40 mm) / disruption at +30 mm; HIBD offset was 0.0025
401562016-06-20 16:23:23.251fernando44150repeat previous with higher vertical shift: 5 mm / good results (use these ones)
401552016-06-20 16:17:31.583fernando44150repeat previous / results OK; try to increase the vertical shift
401542016-06-20 16:01:50.44fernando44150repeat previous / MARTe node (java) failed
401532016-06-20 15:56:28.164fernando000set-point: small variation around 0 mm (+3 to -3 mm) to compare with LPs and validate HIBD / HIBD 50Hz was ON
401522016-06-20 15:46:14.999fernando44150set-point to 0 mm to compare with LPs / results suggest to decrease HIBD offset
401512016-06-20 15:40:07.814fernando4480changing HIBD offset to 0.0 mm; repeat previous / disruption at -25 mm
401502016-06-20 15:33:06.146fernando4480testing lower limits for vertical plasma position (-40 mm) / disruption at -25 mm
401492016-06-20 15:22:47.596fernando4460testing upper limits for vertical plasma position (+40 mm) / disruption at +30 mm
401482016-06-20 15:16:22.339fernando44150HIBD position measurement calibration with LPs; set-point 0 mm during all the discharge; current HIBD offset=0.0025 mm / it seems calibrated
401472016-06-20 15:09:20.824fernando43.580changing Iprim0 current to 1200-1800 nA; repeat previous / cycles: 1.2.4.6; roughly same position
401462016-06-20 14:47:43.078fernando43.580testing lower limits for vertical plasma position (-40 mm) / disruption at -25 mm (not symmetric)
401452016-06-20 14:41:31.184fernando43.560repeat previous / cycles: 1,3,6; good results
401442016-06-20 14:35:25.511fernando43.560repeat previous / cycles: 1,3,6; good results
401432016-06-20 14:29:41.25fernando000repeat previous with +40 mm / HIBD 50Hz moduation was ON -> wrong position measurement
401422016-06-20 14:20:58.786fernando4475testing upper limits for vertical plasma position (+30 mm) / negative cycles did not disrupt; changing to +40 mm
401412016-06-20 14:13:08.159fernando43.250HIBD on; I_h feedback on HIBD / cycles: 1,2
401402016-06-20 13:57:28.329fernando43.275HIBD on; I_h feed forward / cycles: 1,3,6
401392016-06-20 13:50:12.765fernando4350repeat previous / cycles: 1,3
401382016-06-20 13:31:02.387fernando43300conditioning discharge; repeat for consistency; 20 semi-cycles /
401372016-06-20 13:24:02.685fernando43.5100conditioning discharge; 6 semi-cycles / cycles: 1,3,4,6
401362016-06-20 09:51:10.497fernando24450conditioning discharge; repeat previous to increase Ip; 20 semi-cycles; last shot / still low Ip; going to glow discharges
401352016-06-20 09:45:37.002fernando24450conditioning discharge; repeat previous to increase Ip; 20 semi-cycles / still low Ip
401342016-06-20 09:39:17.261fernando24475conditioning discharge; repeat previous to increase Ip; 20 semi-cycles / still low Ip
401332016-06-20 09:33:11.726fernando2.34275conditioning discharge; repeat previous to increase Ip; 20 semi-cycles / still low Ip
401322016-06-20 09:27:34.36fernando23.75100conditioning discharge; repeat previous to increase Ip / cycles 2, 4 failed; still low Ip
401312016-06-20 09:21:51.606fernando23.5150conditioning discharge; 6 semi-cycles; I_h current forward / 6 cycles; low Ip