ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:

Mon Aug 29 06:57:32 2016

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Per the instructions provided by https://elog.ph.ed.ac.uk/AIDA/331 added Servisol Heat Sink Compound
to each of the 24x FEE64s currently installed (plus spare FEE module stored in the B3F AIDA storage
area).

Before adding the Servisol Heat Sink Compound - https://elog.ph.ed.ac.uk/AIDA/349 (attachment 3)

After adding the Servisol Heat Sink Compound - see attachment 1

With exception of nnaida8 & nnaida10 Virtex temperatures now ~ +44-55 deg C cf. ~ +55-70 deg C

nnaida6 shows an increase in temperature for the PSU from ~ +35 deg C to ~ +40 deg C

All system-wide checks OK

Rate hit patterns for nnaida1-nnaida24 - see attachments 2-3
Should show uniform rate ~130Hz for all channels
Observe some channels are missing

N.B. 1x AIDA adaptor PCB rev D replaced by spare due to (single) bent ERNI pin
     All ERNI connectors of all AIDA adaptor PCBs checked before re-installation of FEE modules
     - it is possible that there are other AIDA adaptor PCBs with bent pins
     - the system is currently fairly noisy and this could be an alternative explanation of missing channels

16.55 R10

FEE64 configuration includes nnaida19

ASIC settings 2016Aug20-15.34.53
      Discriminator masks -> 0x0
      From Correlation Status & Control tab change Trigger delay from 0x180 to 0x5

BNC PB-4 Pulser
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns tau_d 50us 
      - polarity
      INT ref, delay MIN, tail pulse
      External (random) trigger from EG&G Ortec 462 Start output (Range 81.92us) - frequency c. 120Hz

B2F/F11 temp +25.0 deg C, d.p. +14.3 deg C, RH 51.6% (Julabo FL11006 set point +20 deg C)

FEE64 temperatures - attachment 6

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Attachment 1: