ELOG DESPEC

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

DESPEC

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Entry time:

Fri Apr 19 13:52:34 2024

Author*:

Subject*:

12.00 Replaced AIDA ASIC mezzanine of aida01 to fix issue with asic #3

During replacement the HDMI connector of the adjacent FEE64 aida09 became disconnected from the FEE64 PCB
      aida09 ( MAC ee:10 ) replaced (MAC 41:cf:ad )

AIDA FEE64 adaptor PCBs for aida01, aida14 and aida09 disconnected and re-connected during this process

DSSSD bias & leakage current OK - attachment 1

FEE64 temps OK - attachment 2
       *except* aida02 ASIC temp - known fault

System wide checks OK *except* WR/FPGA errors - attachments 3-4

WR timestamps OK - attachment 5

ADC, DISC, PAUSE, RESUME and correlation data stats - attachments 6-10
       ADC data items 10/16 < 20k, max 143k

per FEE64 Rate spectra - attachment 11

per FEE64 1.8.W spectra - 20us FSR - attachments 12-13

15.10 Synchronise ASIC clocks
      Re-calibrate ALL ADCs

ASIC settings 2024Mar27-11.25.32

Changes ( https://elog.ph.ed.ac.uk/CARME/499 )

IBias LF feedback from 0xf to 0x8
       Diode link threshold from 0xbf to 0xca

New ASIC settings saved as 2024Apr19-15.22.49

All FEE64 slow comparators -> 0x14

Data file S100_alpha/R12

Pulser ealkthrough (test +)

BNC PB-5 settings
 
      Amplitude 10.0-1.0V @ 1.0V step
      Attenuation x10
      Frequency 25Hz
      Polarity +
      Tail pulse
      tau_d 1ms

16.35 DAQ ends OK file S100_alpha/R12_24

per p+n FEE64 1.8.L spectra - attachment 14
       aida09 pulser peak width 54 ch FWHM

17.38 Data file S100_alpha/R13

Pulser walkthrough (test -)

BNC PB-5 settings
 
      Amplitude 10.0-1.0V @ 1.0V step
      Attenuation x10
      Frequency 25Hz
      Polarity -
      Tail pulse
      tau_d 1ms

18.43 DAQ ends OK file S100_alpha/R13_20

per p+n FEE64 1.8.L spectra - attachment 15

18.55 Current status

FEE64 power ON
      DSSSD bias ON

All FEE64 slow comparator 0x14

DAQ going -> Merger -> TapeServer (no storage mode) -> MBS ( but data stream not yet being read by MBS )

To Do

- S4 currently closed/controlled access for FRS startup

If we have access to S4 tomorrow

- switch test - to test + ( not critical )
- test AIDA interlock 
- further alpha background?

22.47 DSSSD bias & leakage current OK - attachments 16-17

FEE64 temps OK - attachment 18
       *except* aida02 ASIC temp - known fault

ADC data item stats - attachment 19

per FEE64 Rate spectra - attachment 20

Data link, Tape Server & Merger - attachments 21-23

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ELOG V3.1.4-unknown