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:

Tue May 9 02:25:04 2017

Author*:

Subject*:

10.25 DAQ continues OK 
      Current file May2017/R1_79

ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x64
      LEC/MEC fast comparator 0xff

BNC PB-4 pulser OFF

Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

*all* system wide checks OK

10.28 1.8.L ADC spectra - see attachments 6 & 7 
      1.8.W waveforms - see attachments 8-11

10.43 DAQ stopped 
      Current file May2017/R1_79

10.48 E17/F11 ambient temperature +24.5 deg C, RH 29.0%, d.p. +5.0 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

10.58 DAQ starts
      File May2017/R2 *IGNORE*

Pulser walkthough

BNC PB-4 settings 
      Amplitude 90,000 - 10,000 @ 10,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

ASIC settings 2017Mar27-16.12.39
      Slow comparator 0x0a
 
      See attachment 12

11.02 DAQ starts
      File May2017/R3 *IGNORE*

Pulser walkthough

BNC PB-4 settings 
      Amplitude 12,000 - 2,000 @ 2,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

ASIC settings 2017Mar27-16.12.39

See attachment 13

Pulser walkthroughs R2 & R3 should be ignored as + polarity test input
had significantly lower amplitude (x2 oor more) than - polarity test input.
The + polarity test input is derived from tee'd output from BNC PB-4 and
EG&G Ortec 433 Sum & Invert - physically moving the cabling and connectors
between these two points changed tail pulse amplitude or produced a transient
(non-tail) pulse with duration ~ 100ns. Not clear which cable or connector
is the issue (all cables and connectors were individually replaced) but output
amplitude currently correct so will proceed.

11.22 DAQ starts
      File May2017/R4

Pulser walkthough

BNC PB-4 settings 
      Amplitude 90,000 - 10,000 @ 10,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

ASIC settings 2017Mar27-16.12.39
 
      See attachment 14

11.28 DAQ starts
      File May2017/R5

Pulser walkthough

BNC PB-4 settings 
      Amplitude 12,000 - 2,000 @ 2,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

ASIC settings 2017Mar27-16.12.39

See attachment 15

17.25 E17/F11 ambient temperature +24.7 deg C, RH 28.1%, d.p. +5.0 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

17.32 Detector biases & leakage currents OK - see attachments 16-17
      FEE64 Temperatures OK - see attachment 18

17.40 DAQ starts
      File May2017/R6

Continuing DAQ test

BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      frequency 25Hz range 
      delay MIN, tail pulse

ASIC settings 2017Mar27-16.12.39
      slow comparator 0x20

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Attachment 1: