I have taken videos with an Infrared camera of the power being supplied to one isolated ASIC on a mezzanine.

The power supply is a bench supply with current limit set to 3A.

The centre of the ASIC glowed white hot for a short time and then the whole ASIC shows as hot. Ths the short is on the ASIC and not the bond wires IMO.

I am unable to globally publish the videos at present as I only have a private google drive account.

Please contact Tom Davinson for further details.

Carried out some further work on failed mezzanine modules.

Inspected them externally and removed the copper block, internally with a bench microscope.

Found two obvious faults ..... broken components with scrambled pcb tracks.

To help determine problems with loading control registers I've added a new menu item in the ASIC control window to allow all four ASIC return values to be checked. This is only useful at the mezzanine test system.

Tested 7 that were labelled as faulty. Failed all of them. 2 with broken components and 1 with some broken bond wires. 

Tested one fresh from the cupboard. It failed with over current on the +5v psu ( > 4A! ).

I propose to create a method of testing these mezzanines which allows better access to the power supply regulators ( LT3080 ) and the associated control voltage.

Attachments 2 & 7 AIDA FEE64 mezzanine with
                  1) adaptor PCB connected to ERNI input connector
                  2) test PCB to provide power & control to FEE64 mezzanine
                      plus probe points for (per ASIC) Data Ready, A0-A3, MUX output, 16x fast comparator, 16x buffered preamp output etc.

Attachments 1, 3 & 4 AIDA FEE64 power (middle & right) and fan power (left)

N.B.

Attachment 1 - mid-upper TTi QL355T FEE64 PSU shows nominal current load ( 5V/1.672A 7V/0.031A ) for configured ASICs

Attachment 5 - AIDA FEE64 mezzanines in T9 AIDA cupboard
                 left - 2x boxes with U/S FEE64 mezzanines (labelled)
                right - 2x boxes with bench test OK FEE64 mezzanines 
               bottom - untested FEE64 mezzanines

Attachment 6 - AIDA FEE64 mezzanines to be re-tested


Summary of AIDA FEE64 mezzanine bench tests (see Mezzanine logbooks for details)

Garner Osborn Batch 7226-1

9  pass
11 pass
15 fail no signals?
16 fail power?
17 fail power?
19 pass
23 pass
24 fail asic#4
27 fail power?
30 fail power?
37 pass
39 pass
40 fail power?

Batch 0213110101

26 fail asic#2
27 fail asic#3
29 pass

Batch 0216240101

8 pass

It is possible that the mezzanines have dirty electrical contacts - they should be cleaned and re-tested

we are noticing we appear to see less implant events in detector 3 than we expect. This was first noticed in the xy spectra of the DSSD in the Go4 online.
As part of testing we have lowered the threshold in aida09 which from the xy appeared to have less events.

Following this we still seemed to see less events.

OH downloaded a selection of recent files to analyse. Looking at the total number of HEC events it appears that aida09, aida10 and aida12 are all seeing less HEC events than I would expect.
The ratio of HEC events in aida09 to aida11 was 0.36.

Looking at the energies of the HEC events there appeared to be less events everywhere and not just a threshold issue. We thought it could then be radiation damage and poor
charge collection. To test this we raised the bias to 120V on DSSD3.

The same test was again performed and the ratio again came out to be 0.36
We did not appear to recover any HEC events

Comparing the scaled energy distributions of aida09 and aida11 we see no evidence of a different energy response other than an increase in lower energy events in aida09 due to the lower threshold

I now think it may be a hardware issue. Will look at the last file before the most recent powercycle.

Using TD's analyser program can confirm the rate between aida09 and aida11 before 08:30 this morning was ~1:1.
The problem seems to have appeared during the power cycles following this.

Database file - 2019Dec19-16.19.51
Current threshold at 0x64


13:27 Recovered from power cycle
      System wide checks all ok - Attachments 1-6
      *NB* Synchronise the ASIC clocks doesn't work - Attachment 7
      ASIC Control ok
      FEE temperatures ok - Attachment 8

      Bias and leakage currents ok - Attachment 9
      New taper service menu - Attachment 10

      Pulser peaks log plot - Attachments 11-12
      1.8.L pulser peaks - Attachment 13-14
      Waveform plots - Attachment 15-16



      FEE7 we aren't seeing a HIT pattern but we are seeing ADC data items -> It was a corrupted options file

15:20 DAQ Crashed after enabling data transfer
      Problem was not configuring the tapeserver correctly
      Have recovered from this. There are now no histograms for FEE09
      This is because the options file has been corrupted during startup.
      From the statistics it appear we are still reading data on the FEE
      Chosen to let the DAQ run in this state to test stability for the time being

To make room for the installation of an MR-TOF device at F11, AIDA and DTAS have been removed 
from their in-beam position at F11.

The AIDA network and DTAS/BRIKEN optic fibre cables have been coiled and tied to the E17 stairwell
barrier.

AIDA network cables in B2F disconnected, looped and cable tied to hand rail, out of the way.

Labelled AIDA1/AIDA2 according to which network switch they belong to.

09.08 all system wide checks okay *except* naida7 fails adc calibration
      mismatch between sync pulses received from master and FEE64 - attachment 1

      FEE64 temperatures ok - attachment 2

      detector bias/leakage currents ok - attachment 3
      leakage currents slightly ramping since last night

      RH 50.7%, Temperature 22.2 deg, dew point 11.6 deg

09.30 AIDA powered off and now in safe state

stop the daq

pause merger

stop TapeServer

housekeeping checks

bias off

individually turn power relays off

switch off 2x NIN bins, 1x fan tray

do not turn off clock!!

turn off aida circuits at power box (careful!)

turn chiller off - press and hold arrow button

front panel switch on chiller - off

wall 3 phase power - off

withdraw aida clear from DTAS - slowly!

return power tool, temperature probe and water container to corral

*if cables*

network cables - blue, disconnect at switch, reel up at stairwell

disconnect clock

aida plastic high voltage and signal

cables from root macb trigger and reset to DTAS

mains cables from mains box

then move aida!

https://docs.google.com/spreadsheets/d/12hgbrywB10hGsKt5uc2HnLfZymh8_uvM6cEASbbqnBE/edit#gid=1560332343

10.37 Post - beam, AIDA & DTAS run only
      DTAS stop run 164
      AIDA file R2_1012

10.54 DTAS start run 165
      AIDA file R2_1015
      DTAS begins calibration with 24Na source

11.06 DAQ continues running OK
      All system wide checks ok *except* nnaida7 fails ADC calibration
      FEE64 temperature OK - see attach 1
      Good events rate OK - see attach 2
      Leakage currents OK - see attach 3
      Merger & Tape server OK - see 4 & 5

11.47 DTAS stop run 166
      AIDA file R2_1022

12.03 DTAS start run 167
      AIDA file R2_1025
      Caesium measurement

13.18 DTAS stop run 169
      AIDA file R2_1035

14.59 DTAS opens file run 172
      AIDA file R2_1049
      

14.57 DAQ continues OK file RIBF147/R2_352

      postrun background and gamma source tests

      ASIC settings 2019Jun13-08.56.35
      DSSSD#1 slow comparator 0x1d
      DSSSD#2 slow comparator 0x8

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

      all system wide checks OK *except* nnaida7 fails ADC calibration

      detector biases & leakage currents OK - see attachments 6 & 7

      FEE64 temperatures OK - see attachment 8

      good event statistics - OK - see attachment 9
      11x <20k 22x < 50k 23x <100k
      Merger - 1x Q 21 error  see attachment 10
      TapeServer OK - see attachment 11

      p+n FEE64s 1.8.W spectra 20us FSR - attachment 12
      n+n FEE64s 1.8.W spectra 20us FSR - attachment 13
      1.8.L spectra - see attachments 14 & 15
      nnaida1 78 ch FWHM, nnaida3 81 ch FWHM
      1.8.H spectra - see attachments 16 & 17

      FEE64 Rate spectra - attachment 18
      Check ASIC Control x1

11.04 analysis of file RIBF147/R2_1051 - attachment 19
      deadtime <<1% all FEE64s *except* nnaida19 ~2%
      no timewarps

16.00 AIDA file R2_1058
      DTAS sends sync pulse
      DTAS having issues with DAQ speed

16.30 DTAS stop 175
      AIDA file R2_1062

16.32 pulser walkthrough start

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 250Hz range, variable min. c. 25Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse
      
      90000 - 10000 in 10000 steps walkthrough file R3 - see attachments 20 & 21

      12000 - 2000 in 2000 steps walkthrough file R5 - see attachments 22 & 24

      ignore file R4

17.08 pulser walkthrough end

22.57 DAQ stop
      AIDA file TapeData/RIBF147/R6_49
      DTASD stop on run 191

16.10 DAQ continues as before.
      Merger rate ~700k items/s and ~5.3Kb/s
      Individual FEE rates remain roughly constant
      Temps and bias ok.

17.33 DTAS run 149 stopped

      DTAS run 150 started
      BigRIPS run 2057 
      AIDA run ~1.3GB in R2_865

19.30 DTAS run 152 stopped

      DTAS run 153 started
      BigRIPS run 2058
      AIDA run ~1.8GB in R2_884

      Temps and bias ok.
      Rates in merger, tape server and individual FEEs as before.
      
19.50 In looking at previous data, AIDA is seeing ~30% fewer implants that what is observed at F11Plastic
      Beam spot is not central on AIDA and some ions will be lost over sides of DSSD, but does not look
      like it would account for a ~30% reduction
      AIDA implant profile shown in Attachment 1 - from file
merged_a2_687_708_br190618_2315_100Sn118_121bgrun2049_sw_Tsi.root

21.01 Beam stopped.
      DTAS run 155 stopped.
      AIDA file R2_899.

      DTAS and AIDA will continue with background measurements.

21.04 DTAS run 156 started
      AIDA run R2_899
      
      Chiller is full.
      Lead bricks upstream of moderator.

      That's all folks.

08:00 Shift change
      No change in settings

      DAQ continues running OK
      Good events rate OK - see attach 1
      FEE64 temperature OK - see attach 2
      Merger & Tape server OK - see 3 & 4
      Leakage currents OK - see attach 5
      
      Online HEC xy plot OK, most implants in DSSD2 - see attach 6
      Zeroed online histograms

09:29 DTAS DAQ stops on run 135
      AIDA on run R2_787

09:32 DTAS DAQ restarts on run 136
      AIDA on run R2_787
      BigRIPS on run 2053

09:33 DAQ continues OK
      Good events rate OK - see attach 7
      Merger ~ 700k items/s
      Tape ~ 5400 Kbytes/s
      Leakage currents OK - see attach 8

      Online HEC xy plot OK - see attach 9

10:31 Good event rate in nnaida 19, 24 steadily creeping up. See attach 10.
      Currently 160k and 120k
      Merger ~ 710 k items/s
      Tape ~ 5689 kbytes/s
      All system-wide checks OK, except nnaida7 fails ADC calibration as usual

11:20 Good event rate stable - see attach 11
      FEE64 temperatures OK - see attach 12
      Merger ~700k items/s
      Tape server ~ 5500 Kbytes/s
      Leakage currents OK - see attach 13 & 14

11:30  DTAS stops DAQ on run 139
       BigRIPS on run 2053
       AIDA on run R2_806
       
11:32  DTAS restarts on run 140
       BigRIPS 2053
       AIDA R2_807

13:14  DAQ continues OK
       Good statistics events stable - see attach 15
       Merger ~ 730k items/s
       Tape server ~ 5500 KBytes/s
       Leakage current OK - see attach 16

13:34  DTAS stops DAQ on AIDA R2_826

13:37  DTAS restarts DAQ on run 144
       BigRIPS run 2055
       AIDA run 827

15:10  DTAS DAQ reports 20% drop in F11 counting rate
       AIDA plastic unchanged, beam current unchanged. Focusing issue?

       Reset online histograms to check we are still implanting. We are.

       Acquisition continues uninterrupted.

15:17  Good statistics OK - see attach 17
       FEE64 temperature OK - see attach 18
       Merger ~ 700k items/s
       TapeServer ~ 5500 Kbytes/s
       Detector leakage current OK - see attach 19

15:30  DTAS stops DAQ on AIDA run R2_845

15:33  DTAS restarts DAQ on run 147
       BigRIPS run 2056
       AIDA run R2_846 
       

00.00 Shift Change

      DAQ continues ok 

      AIDA file RIBF147/R2_697
      DTAS run 118
      BigRips run 2048

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

      0.3mm Al degrader

00.15 System wide checks all ok *except* naida7 fails ADC calibration

00.19 FEE64 temperatures ok - attachment 1

      good event statistics ok - attachment 2

      detector bias/leakage currents ok - attachment 3

      tape service ok - attachment 4

      merger ok - attachment 5

01.19 DTAS stop/start (verified with DTAS2019 ELOG)

      DTAS Stop: 01:19
      DTAS run: 121
      AIDA run: 708
      BigRIPS run: 2049

      DTAS Start: 01:19
      DTAS run: 122
      AIDA run: 708
      BigRIPS run: 2049

01.46 Primary beam at 120 pnA; implants around 250 cps at F11

01.48 High Energy Spectra (1.8.H) for front and back strips, respectively (attachments 6 & 7)

02.35 HEC XY hit pattern - implants mostly in DSSD2 - attachment 8
      HEC multiplicity n vs p - attachment 9
      HEC Ey vs Ex - attachment 10
      Implant - decay time vs Energy - attachment 11

02.46 zeroed all histograms, online sort stats zeroed

02.49 HEC XY hit pattern - ~3 minutes after zeroing - attachment 12

02.52 Primary beam at 120 pnA; implants around 250 cps at F11

03.20 analyser output file R2_726 - attachment 13
      no timewarps
      ~1s deadtime on nnaida19
      ~0.8s deadtime on nnaida24
      0s for rest

03.23 DTAS stop run 125
      AIDA file R2_728
      BigRIPS run 2049

      DTAS start run 126
      AIDA file R2_728
      BigRIPS run 2050

03.28 Check ASIC control

04.16 HEC XY hit pattern - less implants than expected - attachment 14

      HEC XY hit pattern - change refresh rate to 10s.... looks ok. Sorry Tom! - attachment 15

04.26 FEE64 temperatures ok - attachment 16

04.28 System wide checks all ok *except* naida7 fails ADC calibration

      good event statistics ok - attachment 17

      detector bias/leakage currents ok - attachment 18

      merger & TapeServer ok - attachments 19 & 20

05.32 Primary beam at 120 pnA; implants around 250 cps at F11

05.36 DTAS stop run 129
      AIDA file R2_749
      BigRIPS run 2050

05.40 DTAS send sync pulse AIDA file R2_750

05.43 DTAS start run 130
      AIDA file R2_751
      BigRIPS run 2051

06.31 HEC XY hit pattern - implants mostly in DSSD2 - attachment 21
      HEC multiplicity n vs p - attachment 22
      HEC Ey vs Ex - attachment 23
      Implant - decay time vs Energy - attachment 24

06.34 High Energy Spectra (1.8.H) for front and back strips, respectively (attachments 25 & 26)

06.36 3.20 analyser output file R2_731 - attachment 27
      no timewarps
      ~1.7s deadtime on nnaida19
      ~0.8s deadtime on nnaida24
      0s for rest

07.19 System wide checks all ok *except* naida7 fails ADC calibration

      good event statistics ok - attachment 28

      FEE64 temperatures ok - attachment 29

      detector bias/leakage currents ok - attachment 30

07.21 Merger & TapeServer ok - attachments 31 & 32

07.30 DTAS stop run 132
      AIDA file R2_768
      BigRIPS run 2051

      DTAS start run 133
      AIDA file R2_768
      BigRIPS run 2052



 









      

      

     


     

      

 

Shift change

16:00 
      115 pnA primary, 290 cps implants at F11
      Presently at AIDA R2_616
      DAQ is running smoothly - passes all system checks (except ADC calib of nnaida7)
      Stats okay, though nnaida19 and 24 running a bit high (seems consistent w/ previous shift) - attach 1
           (Consistent with lower thresholds, pasted below)

      100Sn setting, 0.3mm Al degrader

      ASIC settings 2019Jun13-08.56.35
      DSSSD#1 slow comparator 0xa -> 0x1d
      DSSSD#2 slow comparator 0xa -> 0x8
      DSSSD#3 slow comparator 0x8 -> 0xa

      Biases fine - attach 2
      Merger okay - attach 3
      TapeServer okay - attach 4

16:13 New DTAS run 105
      AIDA R2_618
      BigRIPS is still 2044 as at 15:03

      Temperatures okay - attach 5

16:20 Implant spectra look good, mainly into DSSSD2 - attach 6

      Spectra saved in ~spectra/specs-2019Jun18-16.24.33

16:30 Zero stats, histograms

17:03 Old runs ending
      AIDA R2_626
      In principle DTAS 106 but it switches quickly to 107
      BigRIPS 2045

17:10 New run DTAS 108, AIDA R2_627

18:09 New implant profile - attach 6
      New stats - attach 7
      Looks okay

19:08 AIDA R2_647, DTAS 110

19:14 AIDA R2_648, DTAS 111, BigRIPS 2046

20:08 XY implants - attach 8
      Bias - attach 9
      Merger - attach 10
      TapeServer - attach 11
      Stats - attach 12

21:15 New runs: BigRIPS 2047, DTAS 115, AIDA R2_668

22:37 XY - attached 13; stats - attached 14
      Primary beam at 120 pnA; implants around 250 cps at F11

23:14 DTAS closes the run

23:20 New runs: AIDA R2_688, DTAS 118, BigRIPS 2048

00:00 New day. The DAQ continues OK

      Beam setting 2 for enhanced yield of Sn100
      No degrader

      Statistics OK - see attach 1
      FEE64 temps OK - see attach 2
      Merger & Tape server OK - see attach 3 & 4
      Bias OK - see attach 5
      All system-wide checks OK, except nnaida7 fails ADC calibration

00:19 AIDA R2_473
      DTAS  82
      BigRIPS 2036

01:50 FEE temps and bias/leakage currents OK
      Data rate continues at ~620k items/s and ~5.1MB/s
      ASIC check performed successfully
      
02:29 DTAS run 85
      BigRIPS run 2037
      AIDA ~1.5GB into R2_492

02:30 DTAS reset correlation scaler at start of R2_493
      Confirmed by change in value in Correlation status & control @ aidas1 window.

02:36 DTAS run 86 started
      BigRIPS run 2038
      AIDA file R2_494

04:38 DTAS run 88 stopped. AIDA run R2_512.
      DTAS run 89 started.
      BigRIPS run 2039
      AIDA run R2_512 (1.8GB)

      Temps + bias/leakage currents still ok
      Data rate still ~600k items/s and ~5MB/s
      Individual Good data rates remain roughly constant (see attachment 6)
      All system-wide checks passed, except nnaida7 fails ADC calibration

05:48 Stats and histograms zeroed

06:28 DTAS run 91 stopped. AIDA run R2_528 at the time.

      DTAS run 92 started
      BigRIPS run 2040
      AIDA run R2_528

07:50 Made some basic observations with the first file merged after the setting change
      Attachment 7 shows implant x:y plots for each DSSD
      Attachment 8 show PID for second setting with 100Sn highlighted in red and 96Ag in magenta

08:21 PID per DSSD Attachment 9
      Sn100 per DSSD attachment 10
      Sn100 Velocity against DSSD 11
      Sn100 Velocity against DSSD Energy attachment 12

08:29 DTAS and BigRIPS stop
      AIDA on file R2_546

      DTAS starts file 95
      BigRIPS run 2041
      AIDA on file R2_547

08:53 Stats ok - attachment 13
      Temps ok - attachment 14
      System wide checks ok
      ASIC check ok
      Bias and leakage still ok though DSSD3 continues to rise - attachment 15
      Merger continues with data rate around 700k - attachment 16

09:43 With the new implantation profile depositing most of the Sn100 in DSSD2 but some in the 3rd the
      plan is to put in place a 200 micron degrader to bring the deposition into the centre of detector
      2

10:15 Overnight MIDAS analysis has been completed.
      Spectra have been exported to: /homes/npg/spectra/specs-2019Jun18-10.14.36
      MIDAS will be switched to online mode with the change in degrader setting

10.33 DAQ stop
      AIDA file RIBF147/R2_566

      OH/AA/SN add 0.3mm Al degrader to Pb wall immediately upstream of the (CH2)n shield

10.35 Julabo FL11006 chiller set point +20 deg C actual +20.0 deg C
      Water level c. 50% M-H markers
      Temperature +24.1 deg C dew point +9.7 deg C RH 39.8%

10.39 DTAS starts file 98
      BigRIPS run 2042
      AIDA on file R2_567

11:06 Implantation events for the 2nd setting with 0,3mm Al plate - attachments 17-19

      FEE64 Rate spectra - attachment 20
      FEE64 HitRate spectra - attachment 21

      1.8.L spectra - see attachments 22-25
      nnaida1 73 ch FWHM, nnaida3 77 ch FWHM - cf. 73 & 78 ch FWHM respectively 10.41 yesterday
      1.8.H spectra - see attcahments 26-27
      p+n FEE64s 1.8.W spectra 20us FSR - attachment 28
      n+n FEE64s 1.8.W spectra 20us FSR - attachment 29

11.30 Check ASIC Control *all* FEE64s & ASICs

      zero *all* histograms
      zero DAQ stats

11.50 analysis of RIBF147/R2_576 
      deadtime *all* FEE64s <<1%
      no timewarps

11.57 ADC data synchronised - attachment 30
      per FEE64 ADC data / 20.48us - attachment 31

12:39 DTAS and BigRIPS stop runs
      AIDA on file R2_585

      DTAS file 101
      BigRIPS run 2043
      AIDA on File R2_585

13:23 System wide checks ok

14:38 DTAS and BigRIPS stop runs
      AIDA on file R2_683

      OH offline analysis of BigRIPS-implant correlations for previous 2h indicates >90% of 100Sn are
      now in DSSSD#2 with small d=fraction remaining in DSSSD#3 

      100Sn setting, 0.3mm Al degrader

      ASIC settings 2019Jun13-08.56.35
      DSSSD#1 slow comparator 0xa -> 0x1d
      DSSSD#2 slow comparator 0xa -> 0x8
      DSSSD#3 slow comparator 0x8 -> 0xa

      DAQ stats before & after chn age of slow comparator thresholds above - see attachments 33 & 34
      before 11x <20k 21x <50k 24x <100k cf after 11x <20k 22x <50k 23x <100k
      merger 664k items/s cf 560k data items/s

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

15.03 DAQ start
      AIDA file R2_606
      DTAS file 104
      BigRIPS run 2044

      

16:04  DAQ continues running OK
       All system-wide checks OK except nnaida7 ADC calibration fails
       FEE64 temperatures OK - attach 1
       Merger and Tape Server OK - see attach 2 & 3

16:30 DTAS and BigRIPS stop
      AIDA on file R2_406

16:35 Beam stop.
      AIDA plastic gain increased by a factor 2
      Moved the lead bricks between AIDA and F11, 1 cm further away to the sides

      Chiller water level OK
      Humidity  34.6%
      Temperature 23.4 C
      Dew point 7.1 C
      

16:40 Beam restart
      AIDA run R2_408
      DTAS 70 (from DTAS ELOG)
      BigRIPS 2030  (from DTAS ELOG)

      No obvious changes to the implantation pattern. May need more stats.   

      Detector leakage current OK - see attach 4    

17.31 nnaida14 3.*.H & 4.*.H spectra - attachments 5 & 6

      Corresponds to RHS DSSSD#3 - decrease in rate observed but no evidence of systematic variation of HEC energy 

      Modified implantdecay4.f to select events with x & y energy > ADC ch 1600 (c. 1MeV) to observe x-y hit pattern
      of light particles - see attachments 7 & 8
      Low stats but light particle distribution appears to be symmetric with no obvious RHS cut


17:37 DTAS & BigRIPS DAQ stop
      Beam stop
      Lead moved back as before
      AIDA plastic gain decreased by a factor 5

17:40 DTAS and BigRIPS stop
      AIDA on file R2_416


17.48 zero *all* SortSas spectra

17:50 Beam restarting
      AIDA R2_418
      DTAS  73  (72 is a mistake - ignore)
      BigRIPS  2031


18:43 DAQ continues OK
      All system wide checks OK - except nnaida7 fails ADC calibration as usual
      FEE64 temperature OK - see attach 9
      Stats OK - see attach 10
      Merger & Tape Server OK - see attach 11 & 12
      Leakage currents OK - see attach 13
      HEC & LEC events plots attached - attach 14 & 15 - note LEC in DSSD#3 are > 3 MeV only (light particle-like)

18:50 AIDA R2_427
      DTAS 74
      BigRIPS 2031

19.08 DTAS & BigRIPS DAQ stop - beam lost
      AIDA file R2_429

21:15 Beam is back - briefly
      AIDA R2_446

21:17 Beam lost - operators advise "this will take a long time"

22:16 Beam is back!
      AIDA R2_454
      DTAS 78
      BigRIPS 2034

      Statistics OK - attach 15
      FEE64 temperatures OK - attach 16
      Merger & Tape Server OK - see attach 17 & 18
      System-wide checks as usual

      DTAS reports rate in F11 down by 20%, and rate in AIDA plastic sees similar drop.

PID plot produced from 2 hours of merged data - attachment 1

Z on y-axis, A/Q on x-axis

numbers estimated by gating on each isotope and integrating

94Ag - 10584 events in 2hrs

97In - 42 events in 2 hrs

100Sn - 56 events in 2 hrs

94Pd - 383030 events in 2 hrs

10.41 DAQ continues OK file RIBF147/R2_352

      100Sn setting, no degrader

      ASIC settings 2019Jun13-08.56.35
      DSSSD#1 slow comparator 0xa -> 0x1d
      DSSSD#3 slow comparator 0xa -> 0x8

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

      all system wide checks OK *except* nnaida7 fails ADC calibration

      detector biases & leakage currents OK - see attachments 1 & 2

      FEE64 temperatures OK - see attachment 3

      good event statistics - OK - see attachment 4
      11x <20k 21x < 50k 24x <100k
      Merger OK - see attachment 5
      TapeServer OK - see attachment 6

      p+n FEE64s 1.8.W spectra 20us FSR - attachment 7
      n+n FEE64s 1.8.W spectra 20us FSR - attachment 8
      1.8.L spectra - see attachments 9 & 10
      nnaida1 73 ch FWHM, nnaida3 78 ch FWHM

      FEE64 Rate spectra - attachment 11
      Note high rate issues observed for *some* strips in nnaida14 ASIC #3 & #4 fixed (temporarily) by Check
ASIC Control
      FEE64 Rate spectra - attachment 12

10.58 ADC data synchronised - attachment 13

      Online MIDASsort spectra - attachments 14-18

11.04 analysis of file RIBF147/R2_353 - attachment 19
      deadtime <<1% *all* FEE64s
      no timewarps

11.12 HitRate spectra - attachment 20
      disable nnaida14 *hot* channels 29, 30 & 35 

11.15 zero all histograms
      zero DAQ stats

12.31 DTAS and BigRIPS stop
      AIDA on file R2_368

      DTAS starts file 63
      BigRIPS run 2025
      AIDA file R2_368

13:08 R2_374
      The putty window for USB2 had frozen with a 1 in the voltage set as shown in attachment 1
      The window was no longer updating.
      When regaining the window the voltage limit was applied and the detector
      began to ramp down
      The set voltage was reset to 100V and bias was regained.
      Total time with less than 100V was around 30sec

14:28 DTAS and BigRIPS stop
      AIDA on run R2_386

      DTAS Starts file 66
      BigRIPS run 2026
      AIDA on file R2_387

14:32 Bias and leakage currents ok - attachment 21

15:07 Rate spectra showing no spikes in DSSD 3
      System wide checks

15:08 DTAS and BigRIPS stop
      AIDA onfile R2_393
      BigRIPS chaning slit positions

14:14 DTAS starts file: 
      AIDA on file R2_394
      BigRIPS file 2027 (In control by bigRIPS)

15.30 TAS and BigRIPS stop
      AIDA onfile R2_396

It's a new day, it's a new log entry !!

01:25 DTAS run 46 started
      BigRIPS run 2019
      AIDA run R2_268

      DAQ running smoothly
      No change in Stat and Rate (stat zeroed at the beginning of this DTAS run)- See attachment 1
      Merger rate: 630k item/sec - See Attachment 2
      TapeServer rate still ~5 Mbytes/sec - See attachment 3
      
      Temperature and HV ok - See attachment 5 & 6

      System-wide checks OK except nnaida7 fails ADC calibration as usual.

      !!!
      Victor said that the run AIDA R2_249 is missing in the correlation merge data. This is the run when the
      correlation scaler was reset (as DTAS was running out of range in some of their timing histograms) (See
      elog end of Sunday)
      !!!

02:23 Rate in DSSD#3 card 9 and 12 slowly reaching 100kHz while 14 and 15 ~ 50kHz. See attachment 7
      TapeServer rate ~ 5.5 kHz
      

03:25 Change of DTAS run:
      DTAS run 49 started
      BigRIPS run 2020
      AIDA run R2_286

      Experiment still running smoothly. No significant change since last comments 2h ago.
      Leakage current in detector 3 is increasing slowly see attachment 8 & 9  

05:25 Change of DTAS run:
      Note: DTAS run stopped during AIDA R2_305 and re-started during R2_306.  

      DTAS run 52 started
      BigRIPS run 2021
      AIDA run R2_306

      Pretty quiet night shift.
      Stat & Rate in attachment 10 - DSSD#3 FEE card 9 back down to 60kHz
      Merger rate: 650k item/sec - See attachment 11
      TapeServer rate still ~5.1 Mbytes/sec - See attachment 12

      System-wide checks OK except nnaida7 fails ADC calibration as usual.
      
      X vs Y HEC spectrum in attachment 13
      LEC E vs HEC-LEC spectrum in attachment 14
      Both spectra zeroed

      Bias in attachment 15
      Temperature unchanged

07:30 DTAS and BigRIPS stop runs
      AIDA on file R2_323
      
07:33 New Run numbers
      DTAS Run: 55
      BigRIPS Run: 2022
      AIDA on File: R2_324

07:56 System wide checks ok
      Fee temps ok - attachment 16
      
      100Sn setting, no degrader

      ASIC settings 2019Jun13-08.56.35

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

08:28 Bias and leakage ok - attachment 17
      
08:48 ASIC check successful

09:32 DTAS and BigRIPS stop
      AIDA on file R2_342

      DTAS starts file 58
      BigRIPS run 2023
      AIDA still on file R2_342