AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CARME
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Entry time:
Fri Apr 4 17:16:47 2025
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> > 10.07 DSSSD bias -100V leakage current -8.65uA > > Waveforms and discriminators off, still on clean power supply > > stats are ~10k across all fees > > aida03 ~ 220 > aida04 ~ 205 > aida01 ~ 378 > aida02 ~ 259 > aida05 ~ 40 > > Grounding removed from all fees except nn bias fee aida04 and aida05. Grounding goes into both adaptor board and fee body > > aida01 - no identifiable peak > aida02 - no identifiable peak > aida05 - double peak separated by 70 chn > aida04 - 400 shouldering > aida03 - no identifiable peak > > Grounding removed from all fees except nn and pn bias fees aida04, aida01 and aida05. Grounding goes into both adaptor board and fee body > > aida01 - 405 > aida02 - no identifiable peak > aida05 - double peak > aida04 - 228 > aida03 - 417 > > Grounding removed from all fees except pn bias fee aida01 and aida05. Grounding goes into both adaptor board and fee body > > aida01 - 383 > aida02 - no identifiable peak > aida05 - 64 > aida04 - no identifiable peak > aida03 - no identifiable peak > > Grounding on all fees. Grounding goes into adaptor board only > > aida01 - no identifiable peak > aida02 - no identifiable peak > aida05 - 63 (wasn't changed) > aida04 - 700 > aida03 - 700 > > Back to previous grounding on all fees > > aida01 - 331 > aida02 - 226 > aida05 - 37 > aida04 - 207 > aida03 - 214 > > power cycle > > aida01 - 326 > aida02 - 238 > aida05 - 46 > aida04 - 212 > aida03 - 195 > > Waveforms and discriminator back on > > Removed test inputs and terminators from all fees, except aida03 (unable to reach) however the lemo is not touching the chamber > See attached waveforms compared to previous elog 32,33 > > Inserted test input to aida05 only directly from pulser. Width ~ 28 > > Inserted test input to aida01 only directly from pulser. Width ~ 329 > > Waveforms and discriminator off -> no impact on aida01 pulser width > > Waveforms and discriminator back on > > Connected a grounding cable from one of the water cooling pipes to cryring ground > > aida01 ~ 205 > aida05 ~ 23 > aida02 ~ 105 > aida03 ~ 71 > aida04 ~ 148 > Fees with bias attached to them aida01 (+ve) and aida04 (-ve) both show larger widths than there polarity counterpart > waveform screencap 34,35 > > Fee probe > 7.46V left most bar > -6.26V 2nd bar > 5.26V 3rd bar > 5.26V 4th bar > 5.25V 5th bar > > Power supply probe > Top -6.05 > 2nd -6.05 > 3rd -6.05 > 4th +6.49 > 5th -7.78 > > new Ortec 448 pulser swapped in > aida04 ~ 166 > aida05 ~ 21 > > Attachment 7-11 oscilloscope picture when probing fee relay power supply. Power ON fees connected. Top is attachment 7, bottom (5th) is attachment 11. > Attachment 12-16 old pulser > Attachment 17-18 new pulser > Attachment 19-23 oscilloscope picture when probing fee relay power supply. Power OFF fees connected. Top is attachment 19, bottom (5th) is attachment 23. > Attachment 24-28 oscilloscope picture when probing fee relay power supply. Power ON, fees disconnected. Top is attachment 24, bottom (5th) is attachment 28. > Attachment 29,30 probe-scope setup
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