ELOG AIDA

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

AIDA

Fields marked with * are required

Entry time:

Wed Jun 1 01:33:58 2016

Author*:

Subject*:

09.30 Detector biases and leakage currents - ambient temp +24.9 deg C - attachments 1-2

10.08 Connection lost to nnaida27 and nnaida28 
      Most recent save of settings DB key 2016May31-23.32.46

12.00 Replaced nnaida17 & nnaida18 with FEE module previously used for nnaida31 & nnaida32

Pulser walkthrough

BNC PB-4 settings

90,000 - 10,000 @ 10,000 step
      x5 attenuator (was x10 previously)
      t_r = 50ns tau_d = 50us
      polarity -
      rate ~ 150Hz
      INT, delay MIN

polarity + by EG&G Ortec 433A

N.B. - polarity terminated at end of AIDA adaptor chain, + polarity not terminated

Spectra saved 12.32 ( to directories tagged around June 1, 2016 05.29 )

BNC PB4 pulser rate set to ~5Hz

207Bi source at front of snout and 2x 60Co sources above DSSD3

14.00 Rebooted aidas1 to cleanup merge 
      
      Changed config to 24x FEE64s

Clock issues with nnaida23 - clock not locked status 0x6 - see attachments 3-9

18.00 Replace current nnaida19 (no histogramming, reSYNCs OK but timestamp not sync'd wrt timestamps of
      other FEE64s).
      Replace current nnaida23

Following powerup obtained clock not locked - status 0x6 for nnaida5 (master)

Replacement nnaida19 also does not histogram, reSYNCs OK but timestamp not sync'd wrt timestamps
      of other FEE64s)

With help from PJCS investigate above issues and change timestamp master from nnaida5 to nnaida6
      ( /MIDAS/config/HttpdTcl/aidas1/startup.tcl and /MIDAS/config/HttpdTcl/nnaida5/startup.tcl ) to 
      change definition of timestamp master.

Able to operate DAQ and obtain AIDA SYNCs and WAVE SYNCs with TS_SYNC 0x0 _only_ 
      PJCS will also investigate using system in T9 at STFC DL

Restored settings 2016June1-17.27.?

Encoding: HTML ELCode plain
Suppress Email notification Resubmit as new entry

Attachment 1: