ELOG CARME

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

CARME

Fields marked with * are required
Entry time:	Fri Apr 4 17:18:26 2025
Author*:
Subject*:
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 Encoding: HTML ELCode plain Suppress Email notification

Attachment 1:
Drop attachments here...

ELOG V3.1.4-unknown