AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CARME
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Sat May 18 09:08:45 2024
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> > Replace AIDA ASIC mezzanine of aida01 > > 13.43 DSSSD bias & leakage current OK - attachment 1 > ambient temperature 16.5 deg C > > FEE64 temperatures OK - attachment 2 > > All system wide checks OK > > WR timestamps OK - attachment 3 > > ADC data item stats OK - attachment 4 > > per FEE64 Rate spectra - attachment 5 > c. 10 strips (of 1024) not producing data > most missing strips are from aida05 - misaligned or damaged adaptor PCB? > > per p+n FEE64 1.8.L spectra - attachment 6 > aida01 pulser peak width 75 ch FWHM > common x/y scale => peak height proxy for peak width > > per n+n FEE64 1.8.L spectra - attachment 7 > aida01 pulser peak width 70 ch FWHM > > per FEE64 1.8.W spectra - 20us FSR - attachments 8-11 > > Summary > > All FEE64s appear to be working (except aida05 which has c. 8 missing channels) with pulser - which > validates the FEE64, ASICs and adaptor PCB. > > Electronic noise c. 50keV FWHM for aida01 & aida03 - other FEE64s better/worse. > > Preamplifier noise appears to be similar for all FEE64s which may suggest an issue with the test signal chain > > Note > 1) e-target is starting up > 2) have identified some instances of poor CARME cable management/routing see https://elog.ph.ed.ac.uk/CARME/545 > > > > EG&G Ortec 448 Pulser > Amplitude 50,000 > Normalise 5.00 > x5 attenuator IN > t_r 100ns > tau_d 50us > Polarity + > Frequency relay line (50Hz) > > Cooknell SA1 Summing Amplifier > inverted output to test - daisy chain > > Current ASIC settings saved to 2024Apr24-14.14.03 > > > 14.48 Pulser OFF > > All histograms & stats zero'd > > LEC slow comparator 0x64 -> 0xff > HEC fast comparator 0x2 -> 0x5 > > background alpha run to validate signal path from DSSSD to FEE64 adaptor PCB > > 22.18 Start Merger & TapeServer - attachments 12-14 > > DSSSD bias & leakage current OK - attachment 21 > ambient temperature 16.0 deg C > > > FEE64 temperatures OK - attachment 15 > > WR timestamps OK - attachment 16 > > ADC data item stats OK - attachment 17 > > per FEE64 Rate spectra - attachment 18 > > per p+n FEE64 1.8.L spectra - attachments 19-20
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