AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
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Wed Apr 2 01:41:54 2025
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MSL type BB18-1000 2998-22 bias +200V I_L +3.27uA BNC PB-5 amp 2.0V atten x1 tau_d 1ms freq 200Hz pol - (output split via EG&G Ortec 433A to generate + polarity too) PSU TTi QL355TP "-6V & +7V" output set @ -7V & +8V, @ FEE64 -6.7V & +7.3V TTi QPX1200S "5V" output set @ +6.2V, @ FEE64 +5.3V 'linearly regulated output' PSUs connected via standard FEE64 PSU chassis Adaptor nnaida11 & nnaida12 - polarity input (n+n ohmic strips) MSL type BB18 adaptor PCB rev 180713 LK 3 & 7 nnaida13 & nnaida14 + polarity input (p+n junction strips) MSL type BB18 adaptor PCB rev 180713 LK 1, 3, 5 & 7 FEE64 Note nnaida11 has been modified to remove the 470 Ohm resistors linking the buffered preamp outputs from the ASICs to the buffer amplifiers at the sampling ADC inputs. This effectively reduces to zero the switching current load on the buffered preamp outputs. ASIC parameters standard *except* nnaida11 & nnaida12 preAmp reference 0x20 -> 0x90 which will reduce linear output range by c. x2 but significantly stabilises negative polarity input ASICs varying nnaida11 & nnaida12 'Ibias Preamp SF' and 'Ibias Preamp' from 0x8 -> 0x0 had marginal effect on stability and degraded ADC spectra Typical pulser peak widths for nnaida11, 12 (ASICs #1-3) and nnaida13, 14 (ASICs #1-4) c. 130-150ch FWHM. Attachments 1-4 nnaida11, 12, 13, & 14 ASIC parameters 5-8 nnaida11, 12, 13, & 14 hit/rate patterns 9-12 nnaida11 ASICs # 1-4 13-16 nnaida12 ASICs # 1-4 17 nnaida13 ASIC # 4 18 nnaida14 ASIC # 4 19 nnaida11, 12, 13 & 14 'good events' statistics
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