Yesterday we spent time essentially performing a dry run to get AIDA DAQ and bPlast into the time sorter, there were some issues with the AIDA mbs PC x86l-119 which was related to some boot issue, it was booting to a newer version of debian while the Relay for AIDA to MBS is on an older version (scratch) (the machine is quite old). We spent a bit of time getting the thresholds correct for each of the ASICs. In the end we just elected to have a blanket level of 0x0f for all of the ASICs when we removed the pulser.

Last night we left the setup with the following thresholds on all of the FEEs to collect data. 681/1. The pulser was also turned off and the 22Na source was moved close to the snout.

This morning c. 9:25 we returned and checked the temperatures, HV and statistics and everything seems to be ok. The only problem was that the timesorter has crashed this morning at 8 am.

See also https://elog.ph.ed.ac.uk/CARME/489

1. Establish port (to access carme-gsi)               ssh -L 8080:proxy.gsi.de:8080 carme@atppc025

   Establish port (to access aida-gsi)                ssh -L 3128:proxy.gsi.de:3128 despec@lxlogin

   Once a port is established it will remain accessible (until next system boot?) even if ssh connection drops/closes

2. Check AnyDesk password for remote access has been set up

3. Close anydesk and check it is *really* closed using

ps -o pid= -C anydesk

kill -9 any process (as root)

4 Restart AnyDesk

systemctl restart anydesk (as npg)

11.54 re-established remote access via AnyDesk - details to follow

      confirmed AIDA FEE64 power OFF, detector HV OFF


1. Establish port (to access carme-gsi)               ssh -L 8080:proxy.gsi.de:8080 carme@atppc025

   Establish port (to access aida-gsi)                ssh -L 3128:proxy.gsi.de:3128 despec@lxlogin

   Once a port is established it will remain accessible (until next system boot?) even if ssh connection drops/closes

2. Check AnyDesk password for remote access has been set up

3. Close anydesk and check it is *really* closed using

ps -o pid= -C anydesk

kill -9 any process (as root)

4 Restart AnyDesk

systemctl restart anydesk (as npg)

678/1 shows the AIDA OR64 trigger from the fast comparator of aida10.

678/2-4 show the bPlast accepted trigger after the bPlast DAQ has been triggered by the AIDA OR64. The images show a signal coming fast in time after the pulser and also a signal at around 80 us that appears to be coming from pile up.

The bPlast DAQ also now runs with the AIDA OR64 trigger after the NIM out signal from the MACB was sent to an octal discriminator to fix the width of the signal and also the pulse width which from TAMEX should be kept at or above 100 ns. The NIM signal from the MACB was mostly 100 ns but also jumping to signals with a 20ns pulse width.

https://elog.gsi.de/despec/Implantation+Stack/9?suppress=1 - Day 1 ELOG

Day2:

10:14 we set up the detector with the pulser in BB7 and started biasing the detector and setting up the DAQ. Water flow and temperature check, OK. 677/1 677/2 677/3

FEE temps OK. Screenshots included for LOCAL controls for aida07, Discriminator for aida07, ASIC control for aida01 ASIC # 1,2,3,4 and the pulser setting - 1 V @ 10 Hz rep. 677/4 677/5 677/6 677/7 677/8 677/9

ASIC thresholds for the fast comparator LEC/MEC set to 0x20 for all the ASICs in aida10 - connected to BB7. Act on all ASICs did not work with this so each threshold was set to 0x20 on each ASIC by hand.

The pulser is now connected to BB7 test + and via a T-connector to the scope, triggering on the pulser signal. We saw now signals --> lower the threshold of the fast comparator to 1 MeV - 0x64 on all ASICs in aida10. 677/10

No signal was observed, threshold was then set to 0x190 (400 keV) 677/11

13:00 We resumed after lunch. It seems that our thresholds were way too high for starters each channel was actually 100 keV in HEX. We then set the thresholds in aida10 to 0x32, 0x20, 0x20, 0x11 for ASIC 1,2,3,4, respectively. This was to achieve a 10 Hz hit rate in all of the channels! This was done successfully see 677/12 for the hit rate spectrum and also 677/13-16 for the thresholds.

11:00 Visual inspection FEE64 adaptor PCBs & cabling
      aida02 ground from/to other FEE64s disconnected - re-connected
      aida01, aida09, aida12 - ground cabling screws to Lemo 00.250 housings loose - tightemed

12:50 Cooling water pressure & temperature OK - attachments 1  2

12:59 relay #1 power ON

13:01 relay #2 power ON

13:07 aida06 starts - panic during startup, automatic restart following 3 minute timeout

      DAQ reset, setup

      Check ASIC Control - browser tab timeout 
      AIDA MIDAS HTTPD server console log - attachment 3

      Appears to have restored ASIC settings 2024Dec13-17.02.45 saved yesterday
    
      aida10 ASICs #1 & #2 positive input, ASICs #3 & #4 negative input
      slow comparator 0xa (all p+n junction FEE64s and aida10), 0xf (n+n Ohmic FEE64s)

13:28 tar ASIC settings - attachment 4

[npg@aidas-gsi]$ cd /MIDAS/FEE_ASIC
[npg@aidas-gsi FEE_ASIC]$ tar cvf /tmp/FEE_ASIC.tar .

       System wide checks

       Sync ASIC clocks - attachment 5

       Clock, ADC calibration, WR decoder, FPGA timestamp, PLL checks - attachments 6-11
        all OK *except* aida02 WR decoder error

       WR timestamps OK - attachment 12
       FEE64 temps OK - attachment 13
       
13:45 Detector bias ON - attachment 14      

      BNC PB-5 pulser settings - attachment 15
      Pulser connected to all p+n junction FEE64s *except* aida10

      ADC, DISC, PAUSE and MBS correlation scaler stats - attachments 16-19
       aida02 rate significantly lower than yesterday - https://elog.gsi.de/despec/Implantation+Stack/8
       high rates observed for aida08, aida11 and aida14 - which are not connected to a DSSSD!

      per FEE64 Rate spectra - attachment 20

      per p+n junction FEE64 1.8.L spectra - attachment 21
       aida09 pulser peak width 56 ch FWHM = 39 keV FWHM
       consistent electronic noise for all p+n junction FEE64s (cabling+DSSSD)
       electronic noise of p+n junction FEE64s (cabling *only*) higher and more variable cf. https://elog.gsi.de/despec/Implantation+Stack/8 attachment 5

      per p+n junction FEE64 1.8.W spectra 20us FSR - attachments 22-23

      per n+n Ohmic FEE64 1.8.W spectra 20us FSR - attachment 24 

      WR timestamps OK - attachment 25

14:43 DAQ STOP
      Data transfer enabled
      Select Tape Server -> Next Run
      DAQ GO  data file R3

      Merger, Tape Server - attachments 26-27
       data transfer rate c. 900k data items/s cf c. 300k data items/s yesterday https://elog.gsi.de/despec/Implantation+Stack/8

16:45 DAQ STOP

      Data transfer disabled 

      Detector bias OFF

      FEE64 power OFF

Snout assembled for detector position and timing test.

The planned test is to use a BGO with a 22-Na source and the implantation stack to characterise the timing and position of back-to-back 511 keV events (proxy for mock beta decay event).

The implantation stack is assembled as follows:

Upstream ----> AIDA test frame (as a spacer) ----> AIDA DSSSD (3208-3/3208-21/3208-22, Upstream AIDA used in S100 & S181, April 2024) ----> bPlast (Downstream bPlast) ----> BB7 (mounted in test frame connected to AIDA adaptor) ----> Downstream

The AIDA DSSSD condition seems to be the same as when it was dismounted after S181 and it, apart from some specks of dust no bond wires appear to be broken to the naked eye.

BGO signals appear on the scope with a 22-Na source but the response is quite messy.

17:36

MSL type BB18(DS)-1000 24cm  x 8cm DSSSD upstream position within snout using 8x upstream (23") ribbon cables 

MSL type BB(DS)-1000 positioned downstream of downstream bPlast within snout using 1x downstream (29") ribbon cable. For BB7 'isolated' Right Coupler Kapton PCB replaced by unmodified Right Coupler Kapton PCB.

BB7 connected to aida07, sitting in a cardboard box

Update Tcl/Tml files in ASIC, ASIC4 and sys.tml frm PJCS email to allow setting per-ASIC polarity on FEE64
Restart MIDAS@8015

Power on all FEEs

Note nnrpi is not responding to ssh... MP investigates if it ahs been unplugged
 No, but a powercycle worked and fixed it

See error: /MIDAS/FEE_ASIC/aida06/ASICs.txt  not found, create the folders

We see some data in the L spectra, and changing the settings from one ASIC seems to work properly

Stopped for CC/MP to determine the which ASICs correspond to p+n and n+n

Follow up: Alpha data overnight or source?

Offline analysis of S100 data files R21_0 - R21_99 (162Eu setting)

first WR ts
First timestamp of R21_0 0x17CA09154AE3E636

Epoch converter says ...

GMT: Saturday, April 27, 2024 4:36:35.223 AM
Your time zone: Saturday, April 27, 2024 5:36:35.223 AM GMT+01:00 DST

last WR ts
First timestamp of R21_100 0x17CA16C1904150CE

GMT: Saturday, April 27, 2024 8:47:08.772 AM
Your time zone: Saturday, April 27, 2024 9:47:08.772 AM GMT+01:00 DST


FEE64 configuration

FEE64   a b c 
      g       h
        d e f

         a  b  c  d  e  f  g  h
DSSSD#1 15  3 12  9  1  5  2  4
DSSSD#2 11  7 16 10 14 13  6  8

n+n Ohmic FEE64s 2, 4, 6, 8

Data analysis assumes

- all LEC ADC data channels with valid ADC offset included (1012 of 1024 channels)
      LEC calibration ADC offset only

- no clustering

- no multiplex timestamp correction

- no p+n junction side - n+n Ohmic side correlation time gates

- FEE64 *not* DSSSD strip ordering

- hardware - slow comparator setting p+n junction FEE64s 100keV, n+n Ohmic FEE64s 150keV

- LEC energy difference +/-168keV

- HEC energy difference +/- 1.68GeV

- valid LEC events

   DSSSD #1
   p+n junction side multiplicity = 1 and n+n Ohmic side multiplicity = 1
   DSSSD #2 
   0 < p+n junction side multiplicity < 8 
   and
   0 < n+n Ohmic side multiplicity < 8 

   151keV < LEC energy < 1008keV
    to select candidate beta events and veto higher energy events e.g. light ions
    standalone analysis of AIDA data, no downstream veto detector

- valid HEC events
   p+n junction side multiplicity > 0 and n+n Ohmic side multiplicity > 0

  (x,y) strips corresponding to maximum energy
  p+n junction and n+n Ohmic side HEC 

- HEC veto 
   p+n junction side multiplicity > 0 or n+n Ohmic side multiplicity > 0

- per pixel implant-decay correlations

- end of event 
   difference in WR timestamp between successive ADC data items > 2500

Attachments 1-4
per DSSSD p+n junction - n+n Ohmic strip time difference for HEC and LEC events (2us/channel) linear and log scale

- observe large (> 32us) time differences (on log scale)

- range of time differences increases with multiplicity ( DSSSD#1 cf. DSSSD#2 LEC events)

- distribution of HEC time differences can probably be understood in terms of most/all channels of ASIC being active during HEC event with low LEC thresholds

- AIDA is a triggerless DAQ producing streams of ADC data items *not* events
   at high instantaneous rates when events are constructed they may become aggregated in time i.e. > 32us readout time of all channels of one ASIC

- To investigate impose additional end of event criterion 
   difference in first and last WR timestamp of event < 33us

Attachments 5-6
per DSSSD p+n junction - n+n Ohmic strip time difference for HEC and LEC events (2us/channel) linear and log scale

- blue original end of event criteria, cyan new end of event criteria

- as expected range of time differences is restricted to +/- 32us 

- observe somewhat higher fraction of events with low time differences
 
  DSSSD #1 10363098 of 16104322 (64%) events +/-2us 

  DSSSD #2 860454912 of 1766618199 (49%) events +/-2us

Attachment 7
per DSSSD p+n junction - n+n Ohmic strip time difference for LEC events - x-axis 2us/channel, y-axis 20keV /channel


Attachment 8 per FEE64 LEC data rate (Hz) 268ms/channel
Attachment 9 per FEE64 LEC data rate (Hz) 268ms/channel: 150keV < energy < 1500keV
Attachment 10 per FEE64 LEC data rate (Hz) 268ms/channel: energy > 1500keV

- observe high instantaneous rate on spill
- rate dominated by low energy (<1500keV) events
- rate of higher energy events dominated by on spill events i.e. light ions as expected
- significant deadtime on spill for n+n Ohmic FEE64s, low deadtime off spill
- deadtime low/zero for p+n junction FEE64s on/off spill

Attachment 11 per FEE64 LEC hit pattern: 150keV < energy < 1500keV
Attachment 12 per FEE64 LEC hit pattern: energy > 1500keV


Attachment 13 per FEE64 HEC data rate (Hz) 268ms/channel
Attachment 14 per FEE64 HEC data rate (Hz) 268ms/channel: 100MeV < energy < 1000MeV
Attachment 15 per FEE64 HEC data rate (Hz) 268ms/channel: energy > 1000MeV

- rate dominated by low energy (>1GeV) events
- all HEC events on spill as expected (note FEE64 #7 has a single hot channel which can be disabled in software)
- significant deadtime on spill for n+n Ohmic FEE64s, low deadtime off spill
- deadtime low/zero for p+n junction FEE64s on/off spill

Attachment 16 per DSSSD p+n junction versus n+n Ohmic LEC energy - x-axis & y-axis 20keV/channel

Attachment 17 per DSSSD p+n junction versus n+n Ohmic HEC energy - x-axis & y-axis 20MeV/channel

Attachment 18 per DSSSD p+n junction versus n+n Ohmic HEC strip hit pattern: all HEC events

Attachment 19 per DSSSD p+n junction versus n+n Ohmic HEC strip hit pattern
 DSSSD #1 ions stopped in DSSSD #1 i.e. DSSSD #2 HEC multiplicity = 0
 DSSSD #1 shows x-y gate used ( 270 < x < 370, 20 < y < 90 ) to identify 166Tb implants
 DSSSD #2 ions stopped in DSSSD #2 *and* in transmission (can establish which ions stop in DSSSD#2 from DSSSD#2 HEC energy versus DSSSD#1 HEC energy - see https://elog.ph.ed.ac.uk/DESPEC/672

Attachment 20

DSSSD#1 HEC energy (20MeV/channel) versus HEC-LEC dt (1s/channel)

DSSSD#1 LEC energy (20keV/channel) versus HEC-LEC dt (1s/channel)

DSSSD#1 HEC strip # versus HEC-LEC dt (1s/channel)

- Observe # events in every third channel is lower 
- Probably reflects implant-decay correlation livetime
  For example (choosing some numbers for illustrative purposes)
  on spill: HEC livetime 75%, LEC livetime 75% (FEE64 deadtime common for HEC and LEC data) => implant decay correlation livetime 56%
  off spill: HEC live time 75%, LEC livetime 100% =>  implant decay correlation livetime 75%
- Observe 'hot' x channels 315, 318, 321, 324 - disabled for further analysis
- Do not observe any 'hot' y channels 


Attachments 21 & 22

DSSSD#1 per pixel HEC-LEC time (1s/channel): x,y,z gated to select 166Tb events

Naive (parent-daughter decay only, flat background) fit for data t=0-26s ( t1/2 = 27.1(3)s )

Fit ignores data for t=0, 3, 6, 10, 13, 16, 19, 22s to avoid bias of differences in implant-decay correlation deadtime

Suggestion of structure at c. 30s period? Does this reflect spill stucture? 10x spill cycles (30s), 9s spill off, ... etc

Sum of x,y,z gated HEC events (s2112 - see attachment 19) = 670441

Elapsed time of dataset 4h11m = 15060s
# pixels = 100 x 70 = 7000
=> # x,y,z gated HEC events per pixel = 670441/7000/15060 = 0.0064/s or mean time between x,y,z gated HEC event = 157s (estimate needs to be corrected for HEC deadtime)

Sum of implant decay correlations (s2220 - see attachment 21) t=0-150s = 273508 - flat background estimated as 150 x 500 = 75000 = 198508

=> efficiency c. 30% (presumably low due to implant-decay deadtime, LEC multiplicity, per pixel correlations and no clustering)


Summary

$64,000 question - what is the origin of the high instantaneous rate on spill  for DSSSD#1 ? On my to do list.


Attachment 23

LEC multiplicity with/without HEC data in event

per DSSSD LEC p+n junction multiplicity versus n+n Ohmic multiplicity
per DSSSD LEC p+n junction multiplicity versus n+n Ohmic multiplicity z_hec=1 and z_hec=2


With HEC data

DSSSD#1 p+n junction multiplicity ~ 17, n+n Ohmic multiplicity ~28
DSSSD#2 p+n junction multiplicity ~ 40, n+n Ohmic multiplicity ~23

Assume 200Hz HEC events => DSSSD#1 LEC rate = 200 x ( 17 + 28 ) => 9k LEC data items cf. >100k LEC data items (attachments 8 & 13)

i.e. not due to HEC events








 
 


 







   

Anydesk restarted remotely per https://elog.ph.ed.ac.uk/CARME/489

Offline analysis of data files S505/R5_780 - R5_814 (corresponding to MBS data files 73-74) 

Can find an analysis of alpha background runs at RIBF, RIKEN for comparison at https://elog.ph.ed.ac.uk/AIDA/816

Beam off - background runs without sources

MBS 73 27.6.22 09:33-11:33 CEST https://elog.gsi.de/despec/S505/204

MBS 74 27.6.22 11:34-13:34 CEST https://elog.gsi.de/despec/S505/206

MBS 75 27.6.22 13:35-16:29 CEST https://elog.gsi.de/despec/S505/209

ADC offsets per https://elog.ph.ed.ac.uk/DESPEC/556

FEE64 configuration

FEE64   a b c d
DSSSD#1 3 4 1 2
DSSSD#2 7 8 5 6

p+n junction FE64s odd numbered


Data analysis assumes

- all LEC ADC data channels with valid ADC offset included (474 of 512 channels)
- no clustering
- no p+n junction side - n+n Ohmic side correlation time gates
- valid LEC events
   0 < p+n junction side multiplicity < 8 
   and
   0 < n+n Ohmic side multiplicity < 8 


Attachments 1-2 - per DSSSD p+n versus n+n multiplicity

Attachment 3 - per DSSSD x versus y

Attachments 4-5 - per DSSSD p+n versus n+n energy (20keV/channel nominal)
                  all combinations of per DSSSD p+n junction and n+n Ohmic energies 
                  with projection of data within window onto x and y axes

                  too many events for natural (U decay series) background
                  off leading diagonal correlations anomalous
                  transverse width of leading diagonal correlation wider than expected - ADC offsets OK?
                 

Attachment 6 - per FEE64 WR timestamp (32.768us/channel)
               FEE64 sync test using pulser data - looks OK

Attachments 7-14 - per FEE64 ADC spectra (5.6keV/channel nominal)
                   note common x/y scale - pulser peak height proxy for peak width

per FEE64 1.8.L pulser peak widths (ch FWHM)

1 11.43
2 16.58
3 12.52
4 17.54
5 9.10
6 12.22
7 17.03
8 16.09

3 of 4 p+n junction FEE64 good (<70keV), 1 of 4 n+n Ohmic FEE64 good - all others < 100keV
Pulser peak indicates noise/gain/offset stable throughout background runs


Attachments 15-22 - per FEE64 ADC spectra (5.6kleV/channel nominal)
                    observe broad peak-like structures (c. 2.8MeV) in first channel of most ASICs? 

Attachment 23 per DSSSD p+n versus n+n energy (20keV/channel nominal)
              valid LEC events
              p+n junction side multiplicity = 1 n+n Ohmic side multiplicity = 1

Attachment 24 p+n FEE64 #0 energy versus each of n+n FEE64s (#1, #3, #5 and #7) energies (20keV/channel nominal)
              valid LEC events
              p+n junction side multiplicity = 1 n+n Ohmic side multiplicity = 1

Attachments 23 & 24 do not unambiguously identify which FEE64s are attached to which DSSSD
                  

Three BB18-1000 triples AIDAs collected on 14.09.2024

Find attached visual of the wafer and bond wire + factory bias tests accompanying the DSSSDs. elog:669/1 elog:669/2 elog:669/3

Visual inspection carried out showed that bond wires have been fixed + fingerprint on one DSSSD removed and wires repaired. elog:669/4 elog:669/5 elog:669/6 elog:669/7 elog:669/8 elog:669/9 elog:669/10 elog:669/11

DSSSD 1 (defect bias issue 80V): 3208-10 / 3208-18 / 3208-20

DSSSD 2  (3208-6 dysfunctional): 3208-6 / 3208-9 / 3208-16

DSSSD 3 (defect fingerprint): 3131-5 / 3131-10 / 3131-12

03.11 DSSSD bias & leakage current OK - attachment 1

      FEE64 temperatures OK - attachment 2

      ADC data item stats OK - attachment 3

      per FEE64 Rate spectra - attachment 4

05.33 DSSSD bias & leakage current OK - attachment 5

      FEE64 temperatures OK - attachment 6

      ADC data item stats OK - attachment 7

      per FEE64 Rate spectra - attachment 8

      per FEE64 1.8.L spectra - attachments 9-11
       aida09 pulser walkthrough 60 ch FWHM

      per FEE64 1.8.W spectra - 20us FSR - attachments 12-14

      Merger, TapeServer etc - attachments 15-16

05.40 analysis data file R9_1042 - attachment 17

      Check ASIC load x2

      aida02 zero rate
      restart Merger

05.55 Data file S181/R10
      Pulser walkthrough

      All histograms zero'd

      BNC PB-5
      Amplitudes 10.0-1.0 @ 1.0 step
      Attenuation x10
      Polarity +
      tau_d 1ms
      Frequency 25Hz

      per p+n FEE64 1.8.L spectra - attachment 18

      per FEE64 Rate spectra - attachment 19

06.43 TapeServer no storage mode

09.14 Data file S181/R11
      Pulser walkthrough

      All histograms zero'd

      BNC PB-5
      Amplitudes 10.0-1.0 @ 1.0 step
      Attenuation x10
      Polarity -
      tau_d 1ms
      Frequency 25Hz

09.52 TapeServer no storage mode

      per n+n FEE64 1.8.L spectra - attachment 20

15.18 DEFGAS/FATIMA arrays moved downstream to permit installation of calibration source at centre of each array - increased distance to AIDA/bPlas => lower rate


15.16 DSSSD bias & leakage current OK - attachments 21-22

      FEE64 temperatures OK - attachment 23

      ADC data item stats OK - attachment 24
       aida02 zero rate

      per FEE64 Rate spectra - attachment 25

      Merger restart
      ADC data item stats OK - attachment 26
       7x < 20k, max 207k aida16

15.54 bPlast debiased.


16.29 Data file S181/R12
      bPlas OFF but remiains cabled/connected/grounded

16.30 DSSSD bias & leakage current OK - attachment 27

      FEE64 temperatures OK - attachment 28

      ADC data item stats OK - attachment 29

      per FEE64 Rate spectra - attachment 30

      per FEE64 1.8.W spectra - 20us, 200us, 2ms, 20ms FSR - see attachments 31-39
       note - not all FEE64s updated spectra for all settings

      ADC data item stats OK - attachment 40
       rates change cf. attachment 29
       sources installed/moved/removed, people moving around platform?

      per FEE64 Rate spectra - attachment 41

16.57 DSSSD bias OFF
      FEE64 power OFF

16.34 analysis data file S181/R12_7
      max deadtime 2.2% (aida08)
      ADC data rate 1.330M, HEC data rate 2.1k

16.52 analysis data file S181/R12_12
      max deadtime 1.7% (aida08)
      ADC data rate 945k, HEC data rate 1.8k

04.08 DSSSD bias & leakage current OK - attachment 1

      FEE64 temperatures OK - attachment 2

      ADC data item stats OK - attachment 3

      per FEE64 Rate spectra - attachment 4


07.52 DSSSD bias & leakage current OK - attachment 5

      FEE64 temperatures OK - attachment 6

      ADC data item stats OK - attachment 7

      per FEE64 Rate spectra - attachment 8

      per p+n FEE64 1.8.L spectra - attachments 9-10
       aida09 pulser peak width 59 ch FWHM


15.01 DSSSD bias & leakage current OK - attachment 11

      FEE64 temperatures OK - attachment 12

      ADC data item stats OK - attachment 13

      per p+n FEE64 1.8.L spectra - attachments 14-15
       aida09 pulser peak width 59 ch FWHM
       aida05 pulser peak width 68 ch FWHM
       aida12 pulser peak width 71 ch FWHM


      per FEE64 Rate spectra - attachment 16

      Merger, TapeSever etc - attachment 17
       no data transfer to MBS - MBS down?

15.06 analysis data file R9_747 - attachment 18
       max dead time 4.3% aida08, all other FEE64s < 2%
       ADC data rate 1.667M, HEC data rate 2.3k 


19.12 DSSSD bias & leakage current OK - attachment 19

      FEE64 temperatures OK - attachment 20

      ADC data item stats OK - attachment 21

      per FEE64 Rate spectra - attachment 22

23.34 DSSSD bias & leakage current OK - attachment 23

      FEE64 temperatures OK - attachment 24

      ADC data item stats OK - attachment 25

      per FEE64 Rate spectra - attachment 26

Beam lost due to septum failure c. 18.15 Friday 14 June

Cooling of recirculating water failed c. 19.00 - water temperature increased from the normal 17-18deg C to 25-26 deg C
FEE64 temperatures increased and FEE64s powered off and on-call engineer requested.

Cooling of recirculating water restored and AIDA restarted

NH started background run 23.37 - data file S181/R9

01.21 DSSSD bias & leakage current OK - attachment 1

      FEE64 temperatures OK - attachment 2

      ADC data item stats OK - attachment 3
       8x < 20k, max 238k aida08

      per FEE64 Rate spectra - attachment 4

      2x Check ASIC load

      Merger, TapeServer etc - attachments 5-6

      analysis data file R9_27 - attachment 7
       max deadtime 1.9%, all other FEE64s < 1%
       ADC data rate 951k, HEC data rate 1.6kHz

04.28 DSSSD bias & leakage current OK - attachment 8

      FEE64 temperatures OK - attachment 9

      ADC data item stats OK - attachment 10
       8x < 20k, max 261k aida08

      per FEE64 Rate spectra - attachment 11


08.30 DSSSD bias & leakage current OK - attachments 12-13

      FEE64 temperatures OK - attachment 14

      ADC data item stats OK - attachment 15
       all rates increased - gamma source in use?

      per FEE64 Rate spectra - attachments 16-17
       note aida08 asic #3 hot HEC channel

      per FEE64 1.8.L spectra - attachments 18-20
       aida09 pulser peak width 59 ch FWHM
       decay alphas aida05, aida12, aida02, aida04

      per FEE64 1.8.W spectra - 20us FSR - attachments 21-23

      Merger, TapeServer etc - attachments 25-25

      analysis data file R9_152 - attachment 26
       max deadtime 2.4%, all other FEE64s < 1%
       ADC data rate 1.215M, HEC data rate 2.1kHz


12.22 DSSSD bias & leakage current OK - attachment 27

      FEE64 temperatures OK - attachment 28

      ADC data item stats OK - attachment 29

      per FEE64 Rate spectra - attachment 30



15.27 DSSSD bias & leakage current OK - attachment 31

      FEE64 temperatures OK - attachment 32

      ADC data item stats OK - attachment 33
       all rates increased - 370kBq 152Eu in use

      per FEE64 Rate spectra - attachments 34

      per FEE64 1.8.L spectra - attachments 35-36
       aida09 pulser peak width 59 ch FWHM
       decay alphas aida05, aida12, aida02, aida04

      analysis data file R9_275 - attachment 37
       max deadtime 4.4%, all other FEE64s < 2%
       ADC data rate 1.520M, HEC data rate 2.3kHz

18.52 DSSSD bias & leakage current OK - attachment 38

      FEE64 temperatures OK - attachment 39

      ADC data item stats OK - attachment 40

      per FEE64 Rate spectra - attachment 41


22.50 DSSSD bias & leakage current OK - attachment 42

      FEE64 temperatures OK - attachment 43

      ADC data item stats OK - attachment 44

      per FEE64 Rate spectra - attachment 45

Everything appears to be running smoothly. Attachments 1-4 were taken around 16:00

DSSSD Bias & Leakage Current - Check: OK (see attachment 1)
FEE64 Temperature - Check: OK (see attachment 2)
ADC Data Item Stats and Spectrum Browser - Check: OK (see attachments 3 and 4)

Another set of screenshots was taken around 18:00, and everything looks good.

DSSSD bias & leakage current  ok - attachment # 5-6
FEE64 temperatures  ok - attachment # 7
ADC data item stats - attachment # 8
Merger ok - Attachement #9
Tape service - attachement # 10
ucesb - attachment #11

At 19:17, AIDA03 temperatures gave no response (see attachment 12), but after two minutes, they returned to normal.

I noted that the  bplse in ucesb has no data (see attachment 13). It may need to change the disc thresholds again
 it does not affect AIDA

At 19:30 most aida temperature are high and I spoke to people on site via zoom one of them she is working with AIDA so she was able to help. She called Nick and it is found that there is a problem in the cooling system so she stopped AIDA

At 22 the cooling system fixed and Nic and the other person on site restarted AIDA

07.23 All histograms & stats zero'd

      DAQ continues data file S181/R8_35

      analysis data file R8_35 - attachment 1
      max deadtime 4.8% (aida08), all other FEE64s < 3%
      LEC data rate 1.677M HEC data rate 3.7k

08.46 DSSSD bias & leakage current OK - attachments 2-3

      FEE64 temps OK - attachment 4

      ADC data item stats - attachment 5

      per FEE64 Rate spectra - attachment 6

      per p+n FEE64 1.8.L spectra - attachment 8
       aida09 pulser peak width 65 ch FWHM

      per FEE64 1.8.H spectra - attachment 7 & 10

      per FEE64 1.8.W spectra - 20us FSR - attachment 9 & 11

      Merger, TapeServer etc - attachments 12-13
       data file S181/R8_72


10.51 DSSSD bias & leakage current OK - attachments 14

      FEE64 temps OK - attachment 15

      ADC data item stats - attachment 16

      per FEE64 Rate spectra - attachment 17

10.54 analysis data file R8_122 - attachment 18
       max deadtime 7.8% (aida08), all other FEE64s < 3%
       ADC data rate 1.88M, HEC data rate 4.7k


14.24 DSSSD bias & leakage current OK - attachments 18

      FEE64 temps OK - attachment 19

      ADC data item stats - attachment 20

      per FEE64 Rate spectra - attachment 21

      aida02 no data

14.28 merger restarted and DAQ running OK 


14.38 analysis data file R8_213 - attachment 22
       max deadtime 6.6% (aida08), all other FEE64s < 3.5%
       ADC data rate 1.935M, HEC data rate 3.6k