ELOG CARME

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

CARME

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Entry time:

Wed Aug 10 10:30:04 2022

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09.45 Found CARME electrical power off

Reset power switch of distribution box to on
      Reset fuse of 19" rack extender board

One of the SIP power modules may be faulty - others switch on OK

14.00 Checked coolant water flow OK

Transferred Netgear 24 port Gbit switch from AIDA (S4) to CARME (YR09)

Re-connected FEE64 RJ45 network cables
      Re-connected nnrpi1 RJ45 network cable
      Re-connected RJ45 network cable (yellow) to bottom left connector of YR09 patch panel 
      
      @CRYRING user control rooms

Connected RJ45 netwwork cable (yellow) from bottom left connector of patch panel (labelled "1-2->YR10" and "3-4->YR10") to CARME server carme-gsi p4p1 port

Retarted HttpdTcl servers on nnrpi1 and carme-gsi.

Normal 5x FEE64 power up

All system wide checks OK

FEE64 temperatures OK - attachment 1

ASIC settings 
 slow comparator 0x64

Pulser running through aida01-05
Detectors not biased -> lot of noise aida01-04

AIDA stats - attachments 3 & 4

aida05 pulser width ~150 channels FWHM, normal settings, shaping time 8us - attachment 4

See attachments 2-4

Tried changing ADC control register to 0xf in local controls tab -> stops waveform producing data -> no effect on pulser width (slight increase to 160 chn)
fast comparator blanked off (enable disable mask in discriminator control) -> no effect on pulser width
aida05 was ungrounded -> grounded aida05 to the same ground as aida01-04 -> pulser width reduced to 46 chns
Set ADC control register back to 0x0 -> waveforms back -> pulser width reduced to 24 chns
Changed shaping time from 8ms to 1ms -> pulser width increased to 67 chns -> changed back to 8ms shaping time -> returns to 24 chn width
Changed shaping time from 8ms to 2ms -> pulser width increased to 52 chns
Changed shaping time from 2ms to 4ms -> pulser width decreased to 33 chns

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Attachment 1: