AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
Draft saved at 00:00:00
Fields marked with
*
are required
Entry time:
Wed Feb 10 10:56:02 2016
Author
*
:
Subject
*
:
MSL type BB18(DS)-1000 serial 2998-22 Bias +200V, I_L +=6.540uA, ambient temperature +19.9 deg C DSSSD - AIDA adaptor PCB cabling 4 off LH Coupler (Kapton PCB, 5cm), 2x 34-way Samtec ribbon cable (45cm), RH coupler(Kapton PCB, 10cm) + 3M 1245 1.4mil copper foil screen ribbon cables + RH coupler only (i.e. not LH coupler) + drain wires -> gold-plated Lemo-00 test input connectors nnaida 11 & 12 AIDA adaptor PCB rev B nnaida 13 & 14 AIDA adaptor PCB rev C (LK1 fitted) ground links LK3 & LK7 fitted to nnaida11-14 AIDA adaptor PCBs Heavy duty copper cable connects copper front end frames of FEE modules Nitto 5011N conductive gasket between FEE module and front end frames Standard ASIC settings nnaida 11 & 12 - negative input nnaida 13 & 14 - positive input Pulser BNC PB-5 Fall time 1.0ms Rate 100Hz Delay 250ns Ampl 5.00000V Polarity + Pulse top Tail Atten 10x Clamp ON - polarity via Cooknell SA1 Summing Amplifier 207Bi source, approx centred on DSSSD, approx 2cm from DSSSD File R5 shaping time 0.5us slow comparator 16 (dec) File R6 shaping time 8us slow comparator 16 (dec) start: stop: 18.01 File R7 shaping time 8uS slow comparator 12 (dec) start: 18.02 stop: 09.29 10.2.16 spectra saved to disk 11.37 BST (sic) 10.2.16 ------- 10.50 Bias +200V, I_L +=6.010uA, ambient temperature +20.0 deg C File R8 shaping time 8uS slow comparator 10 (dec) start: 10.52 stop: 13.12 spectra saved to disk 14.13 BST (sic) attachments 1 & 2 - hit patterns during R8 DAQ stalled at start of R9 Run control (updated) showed all FEEs going No good events from nnaida12 & 14, nnaida11 & 13 OK nnaida would not stop, would not reset Power cycle to restart Ignore R9 File R10 shaping time 8uS slow comparator 10 (dec) start: 13.27 stop: 14.09 spectra saved to disk 15.10 BST (sic) Pulser walkthrough 9.00000V-1.00000V @ 1.0000V step see attachment 3 File R11 shaping time 8uS slow comparator 10 (dec) start: 14.12 stop: 14.38 spectra saved to disk 15.39 BST (sic) Pulser walkthrough 1.00000V-0.200000 @ 0.1000V step See attachment 4 & 5 Ignore R12 - same issue as before R9 File R13 shaping time 8uS slow comparator 8 (dec) start: 14.50 stop: 15.11 Pulser amplitude 5.00000V File R14 shaping time 8uS slow comparator 8 (dec) start: 15.12 stop: 15.20 Pulser amplitude 5.00000V & 0.20000V File R15 shaping time 8uS slow comparator 8 (dec) start: 15.20 stop: 15.28 spectra saved to disk 16.33 BST (sic) Pulser amplitude 0.10000V & 1.00000V see attachments 6 & 7 For slow comaparator setting 8 (dec) and with the above BNC PB-5 pulser settings above the slow comparator rate decreases from the expected 100Hz (plus source) to < 50Hz between pulser amplitude 0.20000 and 0.10000V. 15.32 Bias +200V, I_L +=6.550uA, ambient temperature +19.6 deg C
Encoding
:
HTML
ELCode
plain
Suppress Email notification
Resubmit as new entry
Attachment 1:
30.png
Original size: 1258x1029
Attachment 2:
31.png
Original size: 1258x1029
Attachment 3:
32.png
Original size: 1258x1029
Attachment 4:
33.png
Original size: 1258x1029
Attachment 5:
34.png
Original size: 1258x1029
Attachment 6:
35.png
Original size: 1258x1029
Attachment 7:
36.png
Original size: 1258x1029
Attachment 8:
Drop attachments here...
Draft saved at 00:00:00
ELOG V3.1.4-unknown