AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
BRIKEN
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Mon Mar 31 13:12:06 2025
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> We mount back all preamplifiers > Initially we used all the PA coming from US, the repaired and the new ones. > There was an issue with the new ones (strong noise and cross talk) > until we realized that the new ones were of differential type > instead of unipolar. We decided to mount all unipolar so we use > the repaired ones plus the ones which were left here and > had some minor problems with discharges. > > We decided to change slightly the gain of the pulser signals > because for PA6 to PA10 the amplitude after the preamp was 2.2-2.4V > so it was saturating the ADC. > So we decreased Pulser 1 (RIKEN, ORNL1, ORNL2, CLOVER) > from 690mV to 540mV (NEG) on the scope (50ohm) > and increased Pulser 2 (UPC) from 90mV to 100mV
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