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:	Wed Apr 9 01:25:12 2025
Author*:
Subject*:
11.15 CARME IE514 ion gauge remains OFF ML says there are 2x ion gauges with line of sight to the DSSSDs - CARME IE514 (now off) and another controlled by the vacuum group - he will request that this is turned off Monday ML says that ion gauges within the upstream e-target should not have line of sight to the DSSSDs FEE64 power ON ASIC settings appear to be using mixture of 2022Jan31-11-52-00, 2024Jan20-12.02.08, 2024Feb08-15.59.09 and 2024Apr24-14.14.03 settings [npg@carme-gsi Options]$ pwd /home/npg/MIDAS_Releases/23Jan19/MIDAS_200119/DB/EXPERIMENTS/AIDA/Options [npg@carme-gsi Options]$ foreach f ( `ls` ) foreach? echo $f foreach? cat $f/CONTENTS \| grep settings foreach? end aida01 ASIC.settings string 2024Apr24-14.14.03 aida02 ASIC.settings string 2022Jan31-11-52-00 aida03 ASIC.settings string 2024Jan20-12.02.08 aida04 ASIC.settings string 2022Jan31-11-52-00 aida05 ASIC.settings string 2022Jan31-11-52-00 aida06 ASIC.settings string 2022Jan31-11-52-00 aida07 ASIC.settings string 2022Jan31-11-52-00 aida08 ASIC.settings string 2022Jan31-11-52-00 aida09 ASIC.settings string 2022Jan31-11-52-00 aida10 ASIC.settings string 2022Jan31-11-52-00 aida11 ASIC.settings string 2022Jan31-11-52-00 aida12 ASIC.settings string 2022Jan31-11-52-00 aida13 ASIC.settings string 2022Jan31-11-52-00 aida14 ASIC.settings string 2024Feb08-15.59.09 aida15 ASIC.settings string 2022Jan31-11-52-00 aida16 ASIC.settings string 2024Apr24-14.14.03 slow comparator 0x64 appears to be set for all FEE64s positive input (p+n junction strips) FEE64s aida01, 02, 05, 06, 09, 10, 11, 12, 13, 15 & 16 negative input (n+n Ohmic strips) FEE64s aida03, 04, 07, 08 & 14 Check ASIC Load all FEE64s All system wide checks OK FEE64 temps OK - attachment 1 DSSSD bias & leakage current - attachment 2 leakage currents remain high cf. June 2024 per FEE64 Rate spectra - attachment 3 high rates observed for DSSSD#1 and DSSSD#3 n+n Ohmic strips 2x hot p+n junction channels aida15 per FEE64 1.8.W spectra - 20us FSR - attachments 4-5 ADC data item stats - attachment 6 high rates observed for DSSSD#1 and DSSSD#3 n+n Ohmic strips CRYRING vacuum and temperature logs - attachments 7-8 12.51 Options DB re-constructed - see https://elog.ph.ed.ac.uk/CARME/665 ASIC settings for all FEE64s restored from 2024Apr24-14.14.03 slow comparator 0x64 appears to be set for all FEE64s positive input (p+n junction strips) FEE64s aida01, 02, 05, 06, 11, 12, 15 & 16 negative input (n+n Ohmic strips) FEE64s aida03, 04, 07, 08, 09, 10, 13 & 14 WR timestamps OK - attachment 9 14.25 EG&G Ortec 448 Pulser settings Amplitude 90,000 Normalise 5.00 Attenuator x5 IN Frequency Relay Line (50Hz) t_r 100ns tau_d 50us Polarity + per FEE64 Rate Spectra - attachments 10-11 per FEE64 1.8.L spectra - attachments 12-14 Pulser peak width aida06 87 ch FWHM, aida08 94 ch FWHM electronic noise poor consistent with high leakage current and 1.8.W spectra above ADC data item stats - attachment 15 15.50 Data transfer to Merger/TapeServer started Tape Server -> no storage mode Data directory APR25 16.30 DAQ STOP FEE64 power OFF DSSSD bias OFF Encoding: HTML ELCode plain Suppress Email notification

Attachment 1:
Drop attachments here...

ELOG V3.1.4-unknown