Session aimRun a few plasma pulses to asses conditioning after weekend and prior baking
Session day2025-03-10Operatorrhenriques
Session IDISTTOK_20250310_1Coordinatorrhenriques

Shot Time Operator Iplasma(kA) n(1018m-3) Duration (ms) Pre/post shot comments
519252025-03-10 19:26:56.466rhenriques-0.9300Repeat with further changes | transition to Ip>0 are slightly better
519242025-03-10 19:19:32.693rhenriques-0.8900Repeat with further changes | still not as good as reference
519232025-03-10 19:12:55.604rhenriques0.8800Repeat with changes in opposite direction | stil worse than 51921
519222025-03-10 19:04:14.16rhenriques-0.900Repeat previous with changes to improve transition to Ip>0 | Made it worse
519212025-03-10 18:47:39.208rhenriques0.86400Repeat after checking interferometer PLL | It worked, density is back
519202025-03-10 18:32:11.087rhenriques-0.8900Repeat to check density signal | Still not there
519192025-03-10 18:19:38.323rhenriques0.8300Repeat without changes | OK, density signal is wrong, sine and cosine have low signal
519182025-03-10 17:48:20.905rhenriques0.8400Repeat with different gain on channel B (clockwise rotation) to reduce elipticity | No clear changes
519172025-03-10 17:37:25.955rhenriques-0.8200Repeat trying to centre channel A and offseting channel B downwards (on the oscilloscope) | Relatively well centred
519162025-03-10 17:26:23.911rhenriques-0.8100Repeat with offset changed towards the left side (on oscilloscope) for channel A in interferometer | OK, central position changed
519152025-03-10 16:49:59.809rhenriques-0.8900Repeat with different sine and cosine starting angles | Good, sine amplitude seems to be higher than cosine
519142025-03-10 16:13:29.932rhenriques-0.8900Repeat with sine and cosine cables swapped | OK
519132025-03-10 15:57:51.259rhenriques-0.8500Repeat plasma pulse 51908 to test interferometer | OK, but signal is negative
519122025-03-10 11:24:41.817rhenriques000Repeat with gain=100 and integration_time=500 ms | OK
519112025-03-10 11:20:43.077rhenriques000Repeat with gain=10 and integration_time=500 ms | OK
519102025-03-10 11:15:32.642rhenriques000Repeat with Hg lamp ON (lamp is located at fiber optic end, near tokamak), gain=1, integration_time=200 ms | OK, saturated lines
519092025-03-10 11:10:07.127rhenriques000Informatic pulse to acquire black frame (background) for SARSPEC spectrometer | OK
519082025-03-10 10:45:29.367rhenriques0.84300Repeat aiming higher prefill and to check optical signal (which was disconnected from 2MSps board, only in MARTe now) | Optical signal is now back to normal amplitude, prefill slightly higher
519072025-03-10 10:31:36.937rhenriques0.8500Repeat, prefill was a bit low in previous pulse | prefill still low, but pulse is now more similar to reference, signal fibre_optic_with_filter is quite low (there is some problem with the signal)
519062025-03-10 10:18:19.571rhenriques0.8400Repeat plasma pulse 51904 for comparison | Relatively similar to reference, slightly worse on the last semi-cycles, forgot to arm spectrometer
519052025-03-10 10:07:07.74rhenriques000Dryrun (file: dryrun_standard_2025_03_03_51819.cfg) | PF and TF currents OK