AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
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Entry time:
Sun Mar 30 09:19:30 2025
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> > MSL type BB18 serial # 2977-20 bias +100V I_L +12.0uA T=23 deg C > (biased by nnaida # 3 & 5 ) > > DSSSD - AIDA adaptor PCB cabling > > 4 off LH Coupler (Kapton PCB, 5cm), 2x 34-way Samtec ribbon cable (62cm p+n, 53cm n+n), > RH coupler(Kapton PCB, 10cm) > + 3M 1245 1.4mil copper foil screen ribbon cables (i.e. not RH & LH couplers) > + drain wires -> gold-plated Lemo-00 test input connectors > > to FEE64s in 4x FEE module crates > > Snout drain wire to FEE module Cu block > > nnaida 3 & 8 AIDA adaptor PCB rev C > nnaida 5 & 9 AIDA adaptor PCB rev C (LK1 fitted) > ground links LK3 & LK7 fitted to nnaida3, 5, 8, & 9 AIDA adaptor PCBs > > *** Note added 11.58 sat 30 Apr 2016 > Detector bias cable to nnaida3 & 5 adaptor PCBs *but* LK1 fitted to nnaida9 *not* nnaida5. > This has been set this way since start of current series of tests Wed 27 April. Connecting > via a different adaptor PCB to that connected to the CAEN N1419 bias supply causes significant > noise issues presumably due to high resistance path via 2x adaptor PCB to DSSSD cables > and the DSSSD bias bus line on the DSSSD. > > Heavy duty copper cable connects copper front end frames of FEE modules > Nitto 5011N conductive gasket between FEE module and front end frames > > Standard ASIC settings > nnaida 3 & 8 - negative input > nnaida 5 & 9 - positive input > > Pulser BNC PB-4 > Fall time 1.0ms > Rate c.100Hz > Delay min > Amplitude 50,000 > Polarity - > Pulse top Tail > Atten 10x > + polarity via EG&G Ortec 433A Sum & Invert Amplifier > > Pulser peak widths broad, structured, non gaussian c. 200ch FWHM > > attachments 1-4 ASIC # 1 waveforms for each acqserver with all acqservers connected to same PSU > > attachments 5-6 for comparison, from yesterday, with acqservers from two different PSUs - note > absence of HF noise in attachments 1-4 cf. attachments 5-6.
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