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