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AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
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AIDA |
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Message ID: 265
Entry time: Wed Jun 1 01:33:58 2016
Reply to this: 267
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Author: |
TD |
Subject: |
Wednesday 1 June 2016 |
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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.? |
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