AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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ID Date Author Subject
  571   Thu May 18 02:16:05 2017 CB, TD, OHThursday 18 May
10.10 DAQ continues OK 
      Current file May2017/R10_346

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.20 E17/F11 ambient temperature +24.3 deg C, RH 39.0%, d.p. +9.3 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

10.25 DAQ stops OK
      Current file May2017/R13_294

      Files May2017/R13* *deleted* 

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate 250Hz range
      delay MIN, tail pulse

      Check ASIC Control x2
      Zero all spectra

10.30 DAQ starts
      File May2017/R14

17.34 DAQ stops OK
      Current file May2017/R14_113

      Files May2017/R14* *deleted* 

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate 250Hz range
      delay MIN, tail pulse

      Check ASIC Control
      Zero all spectra

      *all* system wide checks OK

17.37 DAQ starts
      File May2017/R15

      Detector biases & leakage currents OK - see attachments 6 & 7
      FEE64 Temperatures OK - see attachment 8
      good events statistics - higher rates for several FEE64s - due to addition of system consoles? - see
attachment 9
      No warnings/errors reported by merger since DAQ GO - ~ +30% data rate - see attachment 10
  570   Wed May 17 05:28:19 2017 TD, OHWednesday 17 May
11.11 DAQ found stopped
      Most recent file May2017/R11_245 (last accessed 06:09)

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics zero - see attachment 4
      Merger and Tapeserver terminal server windows are gone - see attachment 5

      *all* system wide checks OK

      No relevant system log messages (/var/log/messages) c. 06.00

      DAQ STOP attempt #1  did not stop
                       #2  timeout nnaida1, nnaida2-24 did not stop
                       #3  timeout nnaida1, nnaida2-24 did not stop

      Restart, configure and setup/go merger terminal server
      Restart TapeServer terminal server

      DAQ STOP attempt #3 all stop OK

11.24 Analysis of data file R11_245 - see attachment 6
      dead-time/idle-time < 0.5%
      AIDA SYNC100 variations ~160/78000

11.34 E17/F11 ambient temperature +24.5 deg C, RH 37.0%, d.p. +9.0 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

13.06 Check ASIC Control x2
      Zero all spectra

      Restart terminal servers for Httpd for Merger/TapeServer, Merger & TapeServer
      Restart browser for Merger & TapeServer
      N.B. *no FEE64 power cycle, no DAQ RESET, SETUP etc*

11.30 DAQ starts
      File May2017/R12

13.10 DAQ GO - data transfer links for nnaida11 & nnaida12 dropped

      DAQ STOP
      Disable all data transfer links
      Restart terminal servers for Httpd for Merger/TapeServer, Merger & TapeServer
      Restart browser for Merger & TapeServer
      Enable all data transfer links

      DAQ GO OK
      File May2017/R13

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff
  568   Tue May 16 03:18:46 2017 TD, OHTuesday 16 May
11.19 DAQ continues OK 
      Current file May2017/R10_346

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

11.22 Analysis of data file R10_246 - see attachment 6
      dead-time/idle-time < 1%
      AIDA SYNC100 variations ~700/97000

10.10 E17/F11 ambient temperature +24.5 deg C, RH 38.0%, d.p. +9.4 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

11.23 DAQ stops OK
      Current file May2017/R10_347

      Files May2017/R10* *deleted* 

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate 250Hz range
      delay MIN, tail pulse

      Check ASIC Control x2
      Zero all spectra

11.30 DAQ starts
      File May2017/R11

18.18 Detector biases & leakage currents OK - see attachments 7 & 8
      FEE64 Temperatures OK - see attachment 9

18.24 E17/F11 ambient temperature +24.5 deg C, RH 36.8%, d.p. +8.7 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)
  567   Mon May 15 02:01:02 2017 TD, OHMonday 15 May
10.01 DAQ continues OK 
      Current file May2017/R8_334

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.06 Analysis of data file R8_333 - see attachment 6
      dead-time/idle-time < 2%
      AIDA SYNC100 variations ~1800/95000

10.10 E17/F11 ambient temperature +24.8 deg C, RH 36.4%, d.p. +8.9 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

10.15 DAQ stops OK
      Current file May2017/R7_298

      Files May2017/R8* *deleted* 

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator *0x08*
      LEC/MEC fast comparator 0xff

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate 250Hz range
      delay MIN, tail pulse

      Check ASIC Control x2
      Zero all spectra

10.20 DAQ starts
      File May2017/R8

      Transient timeouts at DAQ GO for FEE64s nnaida1 and nnaida2 which resolved themselves without user
intervention
      DAQ run control transitioned from 'RESET and STOP/GO' to 'RESET' to 'RESET and STOP/GO'

10.22 DAQ stops
      File May2017/R9

      Tapeserver data rates fluctuate 10-30Mb/s possibly due to parallel disk I/O activity (deleting R8 files)

      Transient timeouts at DAQ STOP for FEE64s nnaida1 and nnaida2 which resolved themselves without user
intervention - see attachment 7
      DAQ run control transitioned from 'RESET and STOP/GO' to 'RESET' to 'RESET and STOP/GO'

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator *0x0a*
      LEC/MEC fast comparator 0xff

10.31 DAQ starts 
      File May2017/R10
  566   Sun May 14 01:52:49 2017 TD, OHSunday 14 May
09.54 DAQ continues OK 
      Current file May2017/R7_292

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.02 Rate/HitRate spectra - see attachments 6 & 7
      1.8.L ADC spectra - see attachments 8 & 9
      1.8.W waveforms - see attachments 10-13

10.07 Analysis of data file R7_294 - see attachment 14
      dead-time/idle-time < 0.5%
      AIDA SYNC100 variations ~330/102000

10.17 E17/F11 ambient temperature +25.1 deg C, RH 37.2%, d.p. +9.4 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

10.19 DAQ stops OK
      Current file May2017/R7_298

      Files May2017/R7* *deleted* 

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate 250Hz range
      delay MIN, tail pulse

      Check ASIC Control x2
      Zero all spectra

10.22 DAQ starts
      File May2017/R8

      Analysis of May2017/R8_3 confirms ADC data synchronisation - see attachments 15 & 16
  565   Sat May 13 03:16:16 2017 TDAnalysis of May2017/R1_0 to May2017/ R1_79
See https://elog.ph.ed.ac.uk/AIDA/555

Date files May2017/R1_0 to May2017/R_79 are an extended (c. 3.8 day) background run with
BNC PB-4 Pulser OFF and and a relatively high slow comparator threshold 0x64 to reduce
data volume.

Attachment 1 - DSSSD#1-6 m_p versus m_n 

Attachment 2 - DSSSD#1-6 x versus y hit patterns

Attachment 3 - DSSSD#1-6 E_p versus E_n (dispersion ~20-23keV/channel)

Attachment 4 - DSSSD#1-6 E_p versus E_n (with tags)

Attachment 5 - 2D contour levels & colours for all 2D spectra above

Attachment 6 - MIDASsort subroutine

Attachment 7 - MIDASsort namelist I/O variables

Attachments 8-10 - ADC offset calculation logs etc

Attachment 11 - spectrum titles

MIDASsort calculates channel and ADC data as follows

       ch = channel + ( module - 1 ) * 64 + ( range * 2048 )
       adc_data = INT( RSHIFT( ABS( adc_data - 32768 ), 3 ) - offset(ch) + 0.5 )

       where

       channel = FEE channel # (0-63)
       module = FEE module # (1-24)
       range = LEC or HEC (LEC = 0, HEC = 1)

ADC offsets were calculated using the pulser walkthrough data of files May2017/R4
and command

cd ~/td/calibration
offsets /homes/npg/Spectra/R4 100 1400 15 10

where the peakfind peak search parameters are limits 100-1400 channels, fwhm=15 channels and acceptance=10%

Probably ~10% of ADC offsets need manual checking/adjustment

The 2D spectra (attachments 1-4) were produced for events with

multiplicities 0 < m_p < 8 *and* 0 < m_n < 8
all x-y combinations incremented

no clustering, gain matching or software thresholds

All DSSSDs show Uranium 4n+2 decay sequence background spectra from the intrinsic activity of the DSSSDs
and airborne decay products (e.g. 222Rn). Not clear why statistics are higher for DSSSD#1 cf. DSSSD#2-6.
One possibility is the activity of the aluminized Mylar window just upstream of DSSSD#1? Surrounding air
and Al snout would presumably affect DSSSD#1 and #6 about the same.
  564   Sat May 13 02:35:53 2017 TD, OHSaturday 13 May
10.35 DAQ continues OK 
      Current file May2017/R6_246

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x20
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.46 Rate/HitRate spectra - see attachments 6 & 7
      1.8.L ADC spectra - see attachments 8 & 9
      1.8.W waveforms - see attachments 10-13

10.51 Analysis of data file R6_245 - see attachment 14
      Zero AIDA pause/resume
      Zero idle-time
      AIDA SYNC100 variations ~33/503400

12.03 E17/F11 ambient temperature +24.6 deg C, RH 39.4%, d.p. +9.9 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

12.04 DAQ stops OK
      Current file May2017/R6_250

      Files May2017/R6* *deleted* 

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x0a
      LEC/MEC fast comparator 0xff

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate 250Hz range
      delay MIN, tail pulse

      Check ASIC Control x2
      Zero all spectra

12.15 DAQ starts
      File May2017/R7

14.30 Analysis of May2017/R7_29

      ADC data synchronised - see attachments 15 & 16

14.37 Analysis of data file R7_29 - see attachment 17
      AIDA pause/resume for some FEE64s
      dead-time/idle-time <0.5%
      AIDA SYNC100 variations ~300/100000
  563   Fri May 12 02:55:10 2017 TD, OHFriday 12 May
10.55 DAQ continues OK 
      Current file May2017/R6_181

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x20
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

      All histograms zero'd

11.04 Analysis of data file R6_180 - see attachment 6
      Zero AIDA pause/resume
      Zero idle-time
      AIDA SYNC100 variations ~22/499760

11.20 E17/F11 ambient temperature +24.6 deg C, RH 39.6%, d.p. +9.9 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)
  562   Thu May 11 05:43:30 2017 TD, OHThursday 11 May
13.43 DAQ continues OK 
      Current file May2017/R6_123

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x20
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

13.37 E17/F11 ambient temperature +24.4 deg C, RH 37.3%, d.p. +9.1 deg C

13.58 1.8.L ADC spectra - see attachments 6 & 7 
      1.8.W waveforms - see attachments 8-11

14.16 Analysis of data file R6_124 - see attachment 12
      Zero AIDA pause/resume
      Zero idle-time
      AIDA SYNC100 variations ~20/468430

18.36 DAQ continues OK 
      Current file May2017/R6_137

      Detector biases & leakage currents OK - see attachments 13 & 14
      FEE64 Temperatures OK - see attachment 15
      'good events' statistics OK - see attachment 16

      *all* system wide checks OK
  561   Wed May 10 02:55:13 2017 TD, OHWednesday 10 May
10.55 DAQ continues OK 
      Current file May2017/R6_44

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x20
      LEC/MEC fast comparator 0xff

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.48 E17/F11 ambient temperature +24.7 deg C, RH 35.3%, d.p. +8.3 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

18.32 DAQ continues OK 
      Current file May2017/R6_67

      Detector biases & leakage currents OK - see attachments 6 & 7
      FEE64 Temperatures OK - see attachment 8
      'good events' statistics OK - see attachment 9

      *all* system wide checks OK
  560   Tue May 9 02:25:04 2017 TD, OHTuesday 9 May
10.25 DAQ continues OK 
      Current file May2017/R1_79

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x64
      LEC/MEC fast comparator 0xff

      BNC PB-4 pulser OFF

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.28 1.8.L ADC spectra - see attachments 6 & 7 
      1.8.W waveforms - see attachments 8-11

10.43 DAQ stopped 
      Current file May2017/R1_79

10.48 E17/F11 ambient temperature +24.5 deg C, RH 29.0%, d.p. +5.0 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)


10.58 DAQ starts
      File May2017/R2 *IGNORE*

      Pulser walkthough 

      BNC PB-4 settings 
      Amplitude 90,000 - 10,000 @ 10,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

      ASIC settings 2017Mar27-16.12.39
      Slow comparator 0x0a
 
      See attachment 12

11.02 DAQ starts
      File May2017/R3 *IGNORE*

      Pulser walkthough 

      BNC PB-4 settings 
      Amplitude 12,000 - 2,000 @ 2,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

      ASIC settings 2017Mar27-16.12.39

      See attachment 13

Pulser walkthroughs R2 & R3 should be ignored as + polarity test input
had significantly lower amplitude (x2 oor more) than - polarity test input.
The + polarity test input is derived from tee'd output from BNC PB-4 and
EG&G Ortec 433 Sum & Invert - physically moving the cabling and connectors
between these two points changed tail pulse amplitude or produced a transient
(non-tail) pulse with duration ~ 100ns. Not clear which cable or connector
is the issue (all cables and connectors were individually replaced) but output
amplitude currently correct so will proceed.

11.22 DAQ starts
      File May2017/R4

      Pulser walkthough 

      BNC PB-4 settings 
      Amplitude 90,000 - 10,000 @ 10,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

      ASIC settings 2017Mar27-16.12.39
 
      See attachment 14

11.28 DAQ starts
      File May2017/R5

      Pulser walkthough 

      BNC PB-4 settings 
      Amplitude 12,000 - 2,000 @ 2,000 step
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      rate ~250Hz 
      delay MIN, tail pulse

      ASIC settings 2017Mar27-16.12.39

      See attachment 15

17.25 E17/F11 ambient temperature +24.7 deg C, RH 28.1%, d.p. +5.0 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)

17.32 Detector biases & leakage currents OK - see attachments 16-17
      FEE64 Temperatures OK - see attachment 18

17.40 DAQ starts
      File May2017/R6

      Continuing DAQ test

      BNC PB-4 settings 
      Amplitude 90,000
      x5 attenuator IN
      t_r 50ns, tau_d 50us
      polarity -
      frequency 25Hz range 
      delay MIN, tail pulse

      ASIC settings 2017Mar27-16.12.39
      slow comparator 0x20
  559   Mon May 8 10:00:02 2017 Patrick Coleman-Smith[HowTo] Operating document for the Pi_Monitor FEE64 console logging equipment

The operating proceedure for the Raspberry Pi FEE64 console monitor is attached.

Please let me know if more detail is required.

 

  558   Mon May 8 02:11:37 2017 OH, TDMonday 8 May
10.11 DAQ continues OK 
      Current file May2017/R1_58

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x64
      LEC/MEC fast comparator 0xff

      BNC PB-4 pulser OFF

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

10.19 1.8.L ADC spectra - see attachments 6 & 7 
      1.8.W waveforms - see attachments 8-11

10.35 E17/F11 ambient temperature +24.2 deg C, RH 33.2%, d.p. +7.0 deg C
      Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 65%)
  557   Sun May 7 01:29:50 2017 OH, TDSunday 7 May
09.28 DAQ continues OK 
      Current file May2017/R1_36

      ASIC settings 2017Mar27-16.12.39 *except*
      slow comparator 0x64
      LEC/MEC fast comparator 0xff

      BNC PB-4 pulser OFF

      Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      'good events' statistics OK - see attachment 4
      No warnings/errors reported by merger since DAQ GO - see attachment 5

      *all* system wide checks OK

09.40 1.8.L ADC spectra - see attachments 6 & 7 
      1.8.W waveforms - see attachments 8-11

10.00 E17/F11 ambient temperature +24.3 deg C, RH 39.4%, d.p. +9.6 deg C

18:11 System wide checks all ok
      Leakage and bias all ok - see attachment 12
      Fee temperatures all ok - see attachment 13
      LN2 Refill cycle has been running the past few days and we have encountered no issues
      AIDA daq continues to run fine

19:20 Ambient temperature 24.5 Humdity 38.3% D.P +9.2
  556   Sat May 6 03:32:38 2017 OH, TDSaturday 6 May
11.30 Detector biases & leakage currents OK - see attachments 1 & 2
      Ambient Temperature 24.3 Humidity 37.5% Dew Point 8.9
      FEE64 temperatures - see attachment 3
      Good events statistics (N.B. slow comparator=0x64, fast comparator=0xff) - see attachment 4

      System wide checks all ok

      Screen shots for layout 3 and 4 showing 1.8.L ADC spectra. Note that in the good events statistics a
      higher rate is seen in the p+ junction strips
      This is seen in the layouts as well.
 
16:00 Biases and leakages ok (attachment 5)
      Ambient Temperature 24.4 Humidity 39.7 Dew Point 9.7
      FEE64 Temperatures - attachment 6
  555   Fri May 5 08:03:36 2017 OH, TDFriday May 5th
Relatively painless start-up. Had an issue with firefox where all bookmarks had been forgotten.
All drop down menues in the DAQ did not work.
Kill all firefox processes to restore.

Had to restart DHCP to get the rasp pi working again.

At first no pulser was visible in all p-side FEEs. Cable and BNC adapter on output of inverter were switched out
and the inverter output
was switched from B to A.

After this pulser signals were visible in all ASICS bar NNAIDA 14 ASIC 1. Power cycle was needed to regain this.
No ADC data and no fast discriminator data. Waveform showed baseline at 16K compared to 8K expected.

Layouts 1,2,3,4,7 and 8 attached (Zoomed in waveforms are included for 7 and 8 around baseline) attachments 1-8

Temperatures included as attachment 9

Leakages and bias all ok see attachment 10
Ambient T 24.3C Humidity 34.5% Dew point 7.6C (Measurements taken AM)

system wide checks all ok.

Pulser settings

Amplitude 90000
x5 Attenuator in
Rise time tr 50ns fall time tau d 50us
Negative polarity
freq 25Hz range
Delay min
Internal ref, tail pulse

ASIC settings DB key 2017Mar27-16.12.39

16:26 Slow comparator threshold moved to 100
      Fast comparator theshold LEC/MEC to 255
      Run started to disk May2017/R1
  554   Thu Apr 13 15:08:31 2017 CBCard test

I tested the FWHM of a BNC PB-5 pulser signal as a function of shaping time using the first produced ISOL FEE64 card in Daresbury Labs.

Find attached four representative spectra per ASIC taken with 8, 5 and 0.5 us shaping time values. Run times are different.

Also find attached a plot of the FWHM as a function of the shaping time for the first channel in each ASIC. There appears to be a maximum of the FWHM at around 4 us. This may indicate the main source of noise is external, and at ~4 us the band pass lets most of the noise in.

Unlike the FEE cards employed in RIKEN, this card is grounded to the metal base plate through the screws. In order to investigate the effect of this ground on the noise level of the ADCs in the card, the card was disconnected from the metal plate base. An additional layer of insuating material was placed between the base and the FEE64 card. Nylon screws rather than metal screws were employed to affix the card to the base, and the same tests as before were repeated. See plot below. Overall, the same trend is recovered but suprisingly the FWHM is larger than before for ASICs #1,2 and #3. ASIC #4 has a lower FWHM than before. The reason for the change is not obvious, and may need further investigation.

 

Carlo

 

BNC PB-5 parameters

Delay 250 ns

Rate 100 Hz

Polarity POS

Pulse Top TAIL

Amplitude 0.5 V

 

  553   Wed Apr 5 06:11:08 2017 OHBigRIPS particle ID
I've been going through collecting the BigRIPS root files with Phong and making sure they are on AIDAs1.

The files we have for NP1306 are not the standard format so to get particle ID you need to do this command taken
from the RIKEN elog.

Command to construct the PID in the merged files from preliminary data:

Example file a11111_b1181_e_1130_ion.root

tree->Draw("(F11ICADC[0]+F11ICADC[1]+F11ICADC[2]+F11ICADC[3]+F11ICADC[4]+F11ICADC[5])/6:F11Pla_TM-F3Pla_TM+F5X*0.0383261>>h(500,0,25,500,0,16000)","","colz");

Though these root files were not created by the BigRIPS team so can be cleaned up further but should be good
enough for initial analysis.
  Draft   Wed Apr 5 06:10:55 2017 OHBigRIPS particle ID



  551  


Sun Apr  2 04:40:00 2017
DKBigRIPS Summary Info
It is all saved locally file:///homes/npg/Documents/2017Ca/

Although, a little more hacking is required to get the view.html webpage to allow you to click each run

Whether or not it is useful I don't know, but it was generated by a shell script
/homes/npg/Documents/bigrips_summary.sh which can be modified and used for future experiments.







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