AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
Draft saved at 00:00:00
Fields marked with
*
are required
Entry time:
Fri Mar 28 20:44:11 2025
Author
*
:
Subject
*
:
> 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
Encoding
:
HTML
ELCode
plain
Suppress Email notification
Attachment 1:
Drop attachments here...
Draft saved at 00:00:00
ELOG V3.1.4-unknown