Options and system cosnole disagree about which version of the DataAcq program is in use?

09.54 DSSSD#1 bias +100V leakage current +9.065uA

      ADC data item stats
      per FEE64 1.8.W spectra 20us & 200us FSR - see attachments 1-5


10.02 aida04 asic#1 u/s - see attachments 6-7

10.39 AIDA PSU#1 FEE64s 1,2 3, 4, 5, 6, 7, 8 -> 1, 3, 2, 4, 5, 6, 7, 8

      
      ADC data item stats ( slow comparator 0x64 & 0x14 )
      per FEE64 1.8.W spectra 20us & 200us FSR - see attachments 8-12

11.08 Test + connected aida09, 01, 10, 12, 3 & 11
      SSSD#1 bias +100V leakage current +12.150uA

      ADC data item stats ( slow comparator 0x14 )
      per FEE64 rate, 1.8.L & 1.8.W spectra 20us FSR - see attachments 13-18
      aida01 pulser peak width 134 ch FWHM

10.43 DSSSD bias +100V leakage current +7.550uA


      + bias - core aida04, braid aida12, LK1 ( HV local ground ) fitted aida03, aida11 *not* aida12
      bias bonds aida01 and aida09 probably broken
      aida03 LK3 ( DSSSD PCB ground ) fitted

      ASIC settings 2021Apr29-13-16-00
      slow comparator 0x64

      FEE64s 1, 3, 9, 10, 11, 12  + input polarity
      FEE64s 2, 4, 6, 8           - input polarity

      BNC PB-5 pulser
      amplitude 1.0V
      attenuation x1
      tail pulse
      tau_d 1ms
      frequency 100Hz
      polarity +

      EG&G Ortec 534 Sum & Invert Amplifier
      to provide - polarity test inputs
      Test + and - signals daisy-chained to FEE64s - end of daisy-chain terminated by 50 Ohms.

      Adaptor PCB

      AIDA Half Rev B 180623 fitted FEE64s 1, 2, 3, 4, 9, 10, 11, 12
      AIDA Half Rev A 120418 fitted FEE64s 6, 8

      AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV
      DSSSD #1 - adaptor PCB ribbon cable drain wires connected to respective adaptor PCB ground
      DSSSD #2 ( not installed ) adaptor PCB ribbon cable and ribbon cable drain wires floating
      AIDA Half rev B adaptor PCBs DSSSD#1 - FEE64 cooling plate - adaptor PCB ground *not* connected
      AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV - FEE64 cooling plate - adaptor PCB ground fitted
      ground to AIDA support frame *not* connected
      test + / test - *not* connected




      per FEE64 1.8.W spectra 20 & 200us FSR - attachments 1-2, 14-15

      per FEE64 p+n junction 1.8.L spectra - attachments 3-4
       aida01 pulser peak width 136 ch FWHM ( note double peaking )

      per FEE64 rate spectra - attachment 5
       no test - input

      adc data item stats - attachment 6
      slow comparator 0x64
       note aida04 asic #1 u/s

      system wide checks - *all* OK - attachments 7-11

      FEE64 temps OK - attachment 12

      DSSSD bias - attachment 13

      adc data item stats - attachment 16
      slow comparator 0x14


12.28 LK1 ( local HV ground ) removed from aida03 & aida11 ( already removed from aida12 )

      adc data item stats
      per FEE64 1.8.W spetcra 20us FSR - attachments 17-19

      DSSSD bias +100V leakage current +6.525uA


14.40 DSSSD bias +100V leakage current +6.230uA

      LK1 ( local HV ground ) installed aida12 *only*

      adc data item stats
      per FEE64 1.8.W spectra 20us FSR
      per p+n FEE64 1.8.L spectra - attachments 20-24
       aida12 pulser peak width 196 ch FWHM



14.40 DSSSD bias +100V leakage current +11.485uA

      LK1 ( local HV ground ) installed aida03, aida11, aida12

      adc data item stats - slow comparator 0x64
      per FEE64 rate spectra
      per FEE64 1.8.W spectra 20us FSR
      per p+n FEE64 1.8.L spectra - attachments 25-30
       aida12 pulser peak width 135 ch FWHM ( note double peaking )


      adc data item stats - slow comparator 0x14
      per FEE64 rate spectra 
       p+n FEE64 rates dominated by edge strips  
      per FEE64 1.8.W spectra 200us FSR
      per p+n FEE64 1.8.L spectra - attachments 31-35



17.15 Test - disconnected from pulser
      Connect test daisy chain cable from aida04 to aida02 (50 OHm termination)

      adc data item stats - slow comparator 0x14 & oxa
      per FEE64 rate spectra - slow comparator 0x14
       p+n FEE64 rates dominated by edge strips  
      per FEE64 1.8.W spectra 200us FSR
      per p+n FEE64 1.8.L spectra - attachments 36-44
       aida01 pulser peak width 89 ch FWHM




     

09.50 DSSSD bias +100V leakage current +9.255uA - attachment 2

      FEE64 temperatures OK - attachment 1

      All system wide checks OK

      per FEE64 1.8.W spectra 20 & 200us FSR - attachments 3-6

      per p+n FEE64 1.8.L spectra - attachments 7-8
       aida01 pulser peak width 87 ch FWHM

      adc data item stats - slow comparator 0x64, 0x14, 0xa - attachments 15, 14, 11
      per FEE64 rate spectra - attachments 9-10, 12-13


from https://elog.ph.ed.ac.uk/AIDA/872

13x FEE64s installed - see attachment 2 ( courtesy NH )

FEE64 #    Cable set #
1          1
2          2
3          3
4          4
5
6          6
7
8          8
9          9
10         5
11         11
12         7
15          

Change AIDA PSU cabling from

#1 1-3 2-4 5-6 7-8
#2 9-10 11-12 13-14 15-16

to

#1 1-3 2-4 5-7 9-11
#2 6-8 10-12 13-14 15-16

     DSSSD bias +100V leakage current +11.765uA

     per FEE64 1.8.W spectra 200us FSR - attachments 16-17

      per p+n FEE64 1.8.L spectra - attachments 18-19
       aida01 pulser peak width 158 ch FWHM ( note double peaking )

      adc data item stats - slow comparator 0x64, 0x14 - attachments 23, 21
      per FEE64 rate spectra - attachments 20, 22


     DSSSD bias +30V leakage current +35.8uA





13.35 DSSSD bias +100V leakage current +11.785uA

      aida04 34-way cable #1 connected to ASIC #1 & 2 disconnected from adaptor PCB

      per FEE64 1.8.W spectra 2000us FSR - attachments 26-27

      adc data item stats - slow comparator 0x64, 0x14 - attachments 29-30
      per FEE64 rate spectra - attachment 28


16.20 Install LK2 & LK4 aida12, aida03, aida11 ( front & rear field plate ground )

      DSSSD over current ( 200uA @ c. 30V ) - high resistance short?

      LK2 & LK4 installed aida12 *only* - OvC
      LK2 & LK4 installed aida11 *only* - OvC
      LK2 & LK4 installed aida3 *only* - OvC

      LK2 installed aida3 *only* - OvC ( LK2 = rear field plate )

      All front & rear field plate connections appear to provide a high resistance short to ground for detector bias. This may be related to issues observed biasing DSSSD via aida01 & aida09 - https://elog.ph.ed.ac.uk/AIDA/874
      But why does it affect aida12 too?

09.40 Al snout electrically connected ( < 1 Ohm ) to Al gasket and Al base plate
      Al snout electrically isolated ( > 20 MOhm ) from aida02 FEE64 adaptor PCB and AIDA support frame

      FEE64 temperatures OK - attachment 1
      DSSSD bias +100V leakage current +7.565uA - attachment 2

      All system wide checks OK

      Slow comparator 0x64
      per FEE64 rate spectra - attachment 3
      per p+n FEE64 1.8.L spectra - attachments 4-5
       aida01 pulser peak width 134 ch FWHM
      per FEE64 1.8.W spectra 200us FSR - attachments 6-7
      ADC data item stats - attachment 8

      Slow comparator 0x14
      ADC data item stats - attachment 9
      per FEE64 rate spectra - attachment 10




      Ground Al base plate to aida02 FEE64 adaptor PCB - appears to be marginally worse than without ground

      per p+n FEE64 1.8.L spectra - attachments 11-12
       aida01 pulser peak width 120 ch FWHM
      per FEE64 1.8.W spectra 200us FSR - attachments 13-14
      per FEE64 rate spectra - attachment 15
      ADC data item stats - attachment 16


11.48 DSSSD bias +100V leakage current +11.055uA

      Ground Al base plate to AIDA support frame - appears to be significantly worse than without ground

      per FEE64 1.8.W spectra 200us FSR - attachments 17-18
      per p+n FEE64 1.8.L spectra - attachments 19-20
       aida01 pulser peak width 150 ch FWHM
      per FEE64 rate spectra - attachment 21
      ADC data item stats - attachment 22


11.48 DSSSD bias +130V leakage current +35.05uA

      Ground Al base plate to aida02 FEE64 adaptor PCB - additional bias makes no significant difference

      per FEE64 rate spectra - attachment 23
      per p+n FEE64 1.8.L spectra - attachments 24-25
       aida01 pulser peak width 118 ch FWHM
      per FEE64 1.8.W spectra 200us FSR - attachments 26-27
      ADC data item stats - attachment 28



14.03 DSSSD bias +100V leakage current +10.7uA
      Ground Al base plate to aida02 FEE64 adaptor PCB - re-check
      per FEE64 1.8.W spectra 200us FSR - attachments 28-29
      ADC data item stats - attachment 30




15.10 Add DSSSD HV cable from aida04 to aida02 - significantly worse
      Ground Al base plate to aida02 FEE64 adaptor PCB - re-check
      per FEE64 1.8.W spectra 200us FSR - attachments 31-32
      ADC data item stats - attachment 33




15.37 Switch from - to + polarity detector HV
      N1419ET from ch #3 to ch #2, all outputs non-floating
      LK1 ( local HV ground )removed from aida12, aida03, aida11 - installed aida04 
      LK3 ( DSSSD PCB ground ) installed aida03 ( no change )
      HV #1 core aida12, aida03, aida11 - braid aida04
      test + chain aida9, aida01, aida10, aida12, aida03, aida11 - connected to BNC PB-5 pulser
      test - chain aida04, aida02 - not connected to pulser

      AIDA PSU cabling per https://elog.ph.ed.ac.uk/AIDA/879
      HV cable aida04 to aida02 - removed
      Ground Al base plate to aida02 FEE64 adaptor PCB - removed

      FEE64 temperatures OK - attachment 35
      DSSSD bias -100V leakage current -7.155uA - attachment 36

      Slow comparator 0x14
      per FEE64 rate spectra - attachment 37
      per p+n FEE64 1.8.L spectra - attachments 38-39
       aida01 pulser peak width 123 ch FWHM but note double peaking
      per FEE64 1.8.W spectra 200us FSR - attachments 40-41
      ADC data item stats - attachment 42
      Slow comparator 0x64
      ADC data item stats - attachment 43

      Very similar performance to + polarity DSSSD HV tests

      
16.05 Add LK1 to aida02
      DSSSD bias -100V leakage current -7.770uA

      Slow comparator 0x14
      per FEE64 1.8.W spectra 200us FSR - attachments 44-46
      ADC data item stats - attachment 47
      per FEE64 rate spectra - attachment 48

      Improved noise for n+n FEE64s esp. aida04

16.22 Add LK1 to aida01
      DSSSD bias -100V leakage current -7.950uA

     Slow comparator 0x14
      per FEE64 1.8.W spectra 200us FSR - attachments 2-3
      ADC data item stats - attachment 4
      per FEE64 rate spectra - attachment 1

      Noise worse for n+n FEE64s esp. aida04

17.28 Ground Al base plate to aida02 FEE64 adaptor PCB - appears to be marginally worse than without ground

      per p+n FEE64 1.8.L spectra - attachments 8-9
       aida01 pulser peak width 116 ch FWHM
      per FEE64 1.8.W spectra 200us FSR - attachments 10-11
      per FEE64 rate spectra - attachment 6-7
      ADC data item stats - attachment 5

10.20 DSSSD bias +100V leakage current +6.565uA - attachment 1

      All system wide checks OK - attachments 2-7
       why is SYNC rollover target 0xe?

      FEE64 temps OK - attachment 8

      per FEE64 1.8.W spectra 20us FSR - attachments 9-10
      slow comparator 0x64
      per FEE64 rate spectra - attachment 11
      ADC data item stats - attachment 12

      slow compararator 0x14
      ADC data item stats - attachment 13



11.10 Test + & test - cables disconnected at the outputs of the BNC PB-5 and EG&G Ortec 534


      slow comparator 0xf                      p+n rates dominated by 'hot' channels *except* aida03 & aida09
      per FEE64 rate spectra - attachment 14
      ADC data item stats - attachment 15

      slow comparator 0xa                      p+n rates high ( 100-200k )
      per FEE64 rate spectra - attachment 16
      ADC data item stats - attachment 17


      slow comparator 0x14                      p+n rates entirely due to 'hot' channels
      per FEE64 rate spectra - attachment 18
      per FEE64 1.8.W spectra 20us FSR - attachments 19-20
      ADC data item stats - attachment 21


11.27 Remove ground cable from Al base plate to aida02 FEE64 adaptor PCB

      slow comparator 0xf                      p+n rates entirely due to 'hot' channels
      per FEE64 1.8.W spectra 20us FSR - attachments 22-23
      per FEE64 rate spectra - attachment 25
      ADC data item stats - attachment 24


      slow comparator 0xa                      p+n rates high ( 30-130k ) but lower than previously
      per FEE64 rate spectra - attachment 26
      ADC data item stats - attachment 27

11.48 DSSSD bias +100V leakage current +7.845uA

      Remove LK3 ( local HV ground middle Si wafer )

      slow comparator 0xa                      p+n rates high ( 55-135k ) but increase in rates appears to be due to 'hot' channels
      per FEE64 1.8.W spectra 20us FSR - attachments 28-30
      per FEE64 rate spectra - attachment 31
      ADC data item stats - attachment 32



      CAEN N1419ET ch #2 output connected to Tek TDS 210 DSO - powered from relay #6

      ch 1 - ac - HV braid
      ch 2 - ac - HV core

      ch # 2 OFF - attachment 33
      ch # 2 + 50V 0.000uA - attachments 34-35

      with additional ThorLabs filter
      ch # 2 + 50V 0.000uA - attachment 39


      ch 2 - dc, hi Z

      test -    attachments 36-37
      test +    attachment 38

12.45 Install ThorLabs filter HV core ( *no* filter for HV braid )

      slow comparator 0xa             p+n rates high ( 40-130k ) but p+n rates dominated by 'hot' channels *except* aida03, aida11, aida12 where rates are generally higher per strip
      per FEE64 rate spectra - attachment 40
      per FEE64 1.8.W spectra 20us FSR - attachments 41-42
      ADC data item stats - attachment 43
      


14.55 Install ThorLabs filter HV braid ( filters for both HV core & braid )

      slow comparator 0xa            p+n rates high ( 50-150k ) two filters probably somewhat worse than one filter
      per FEE64 rate spectra - attachment 46
      per FEE64 1.8.W spectra 20us FSR - attachments 44-45
      ADC data item stats - attachment 47


      Overall, effect of ThorLabs filters appears to belimited. Perhaps not unexpected as FEE64 adaptor PCBs also have a HV RC filter. 


      

15.16 DSSSD bias +100V leakage current +8.415uA

      ThorLabs filters removed
      Test + & test - signals disconnected at outputs of BNC PB-5 and EG&G Ortec 534

      aida02 & aida04 LK1 installed, aida01 LK3 not installed
      aida03 LK3 installed

      test + & test- daisy chains installed

      HV daisy chain - core -  aida12, aida03, aida11
      HV daisy chain - braid - aida04


      slow comparator 0xa     p+n FEE64 rates high ( 50-125k ) 

      per FEE64 rates - attachment 1
      per FEE64 1.8.W spectra 200us FSR - attachments 2-3
      adc data item stats - attachment 4


      slow comparator 0xc    p+n FEE64 rates OK ( 15-40k ) dominated by 'hot' channels, low per channel rates in aida11, aida03, aida12

      per FEE64 rates - attachment 5-6
      adc data item stats - attachment 7


      slow comparator 0xf    p+n FEE64 rates low ( 7-17k ) entirely dominated by 'hot' channels

      per FEE64 rates - attachment 8
      adc data item stats - attachment 9


      slow comparator 0x14    

      per FEE64 rates - attachment 10-11
      adc data item stats - attachment 12


      slow comparator 0x19    

      per FEE64 rates - attachment 13
      adc data item stats - attachment 14


      slow comparator 0x1e    

      per FEE64 rates - attachment 15
      adc data item stats - attachment 16

      slow comparator 0x23    

      per FEE64 rates - attachment 17
      adc data item stats - attachment 18


     slow comparator 0x28    

      per FEE64 rates - attachment 19-20
      adc data item stats - aattachment 21


      Ignoring 'hot' channels, reduce rates to < 50Hz/channel for p+n slow comparator threshold 120-150keV and n+n slow comparator threshold 350-400keV 
      If we assume that this estimates the 5x sigma threshold => p+n sigma c. 27keV rms, 64keV FWHM and n+n sigma c. 75keV rms, 176keV FWHM

      Given FEE64-DSSSD cable lengths, optimal p+n performance is c. 40-50keV FWHM so current tests begin to approach this - little extrinsic noise observed for preamp signals
      We continue to observe significant ( though very much improved ) extrinsic noise for n+n strips so current noise performance could be improved by x2-3.



18.42 slow comparator 0x64
      stats & histograms zero'd

      DSSSD bias +100V leakage current +9.040uA

07.00 DAQ stopped
      Overnight run for background alphas

10.07 FEE64 temperatures OK - attachment 1
      DSSSD bias +100V leakage current +8.210uA - attachment 2

      Stats - attachments 3-12


     per FEE64 1.8.W spectra 200us FSR - attachments 21-22
     per FEE64 rate spectra - attachment 23

10.45 Power cycle and reboot

     DSSSD bias +100V leakage current +8.365uA

     All system wide checks OK

     Slow comparator 0x64

     per FEE64 rate spectra - attachment 1
     per FEE764 1.8.W spectra - attachments 16 & 17 ( ignore attachments 2 & 3 - bias off/low )
     adc data item stats - attachment 4


     slow comparator 0xf

     per FEE64 rate spectra - attachment 5
     adc data item stats - attachment 6


     slow comparator 0xe

     per FEE64 rate spectra
     adc data item stats - attachment 7


     slow comparator 0xd

     per FEE64 rate spectra - attachment 8
     adc data item stats - attachment 9


     slow comparator 0xc

     per FEE64 rate spectra - attachment 10
     adc data item stats - attachment 11

     slow comparator 0xb

     per FEE64 rate spectra - attachment 12
     adc data item stats - attachment 13


     slow comparator 0xa

     per FEE64 rate spectra - attachment 14
     adc data item stats - attachment 15

BNC PB-4 - see attachment 1

Amplitude 35,000
Attenuators all OUT
Risetime 50ns
Decay time 1ms
Tail pulse
Polarity +
Frequency 2Hz (min)
Delay min

DSO ch#1 DC/1M - y: 5mV/div x: 100ns, 200ns, 1us, 2us & 10us/div  - attachments 2-6



BNC PB-5 - see attachment 7-9

Amplitude 1.0V
Attenuation x1
Decay time 1ms
Tail pulse
Polarity +
Frequency 2Hz (min)
Delay 250ns (min)

DSO ch#1 DC/1M - y: 5mV/div x: 100ns, 200ns, 1us, 2us & 10us/div  - attachments 10-14



BNC PB-5 - see attachment 15-16

Amplitude 10.0V
Attenuation x10
Decay time 1ms
Tail pulse
Polarity +
Frequency 2Hz (min)
Delay 250ns (min)

DSO ch#1 DC/1M - y: 5mV/div x: 100ns, 200ns, 1us, 2us & 10us/div  - attachments 17-21



Conclusion 

BNC PB-5 significantly noisier than BNC PB-4. Results consistent with GSI tests https://elog.ph.ed.ac.uk/AIDA/886 , i.e. AIDA BNC PB-5 pulser at GSI *not* faulty.
BNC PB-5 operation with 10.0V/10x ( cf. 1.0V/x1 ) shows lower level of noise but still worse than BNC PB-4.

5mV transient at test input ( C_t = 0.7pF ) = 3.5fC = 80keV Si equivalent ( check 1V x 0.7pF = 0.7pC = 16MeV OK ). 

Silena 7710 - see attachment 1

Bias -60V

DSO ch#1 AC/1M - y: 20mV/div x: 100ns, 200ns, 1us, 2us & 10us/div  - attachments 2-6

Silena 7710 - see attachment 1

Bias -60V


Without ac mains filter - attachments 2-6 

DSO ch#1 AC/1M - y: 10mV/div x: 100ns, 200ns, 1us, 2us & 10us/div



With ac mains filter - attachments 7-11
( see https://elog.ph.ed.ac.uk/nToF/67 attachments 2 & 3 )

DSO ch#1 AC/1M - y: 10mV/div x: 100ns, 200ns, 1us, 2us & 10us/div


Conclusion - Claud Lyons Ltd STF Series Surge & Transient Power Filter makes little observable difference to HF noise transients observed

Test of ( previously bench-tested OK ) AIDA ASIC mezzanines using FEE64 nnlycca5 ( MAC d8:80:39:41:d7:c3 )

AIDA test station STFC DL, T9 - see attachments 12-13

Pulser BNC PB-5

Amplitude 1.0V
Attenuation x1
Polarity +
Frequency 100Hz
Tail pulse, decay time 1ms
Delay 250ns (min)

ASIC settings 2021Jul12-14.50.48
Slow comparator 0x2f

Adaptor PCB - PJCS


FEE64 temperatures OK


Rate/HitRate spectra OK

LEC spectra OK
Data observed for all channels of all ASIC #1-4
Pulser peak widths *.8.L

Wave spectra OK
Data observed for all channels of all ASIC #1-4


Date/time          ASIC mezzanine          Pulser peak width   Status
                   serial #                (channels FWHM)
30.8.23 14:00      GOC-7226-1-11           13, 7, 11, 11       OK
30.8.23 15:15      GOC-7226-1-19           9, 7, 8, 8          OK      Rate, HitRate, *.*.L, *.*.W spectra ( 20us FSR ) - see attachments 1-11
30.8.23 16:00      GOC-7226-1-37           8, 7, 8, 7          OK
30.8.23 16:30      GOC-7226-1-39           6, 8, 9, 8          OK
30.8.23 17:00      0213110101-0029         9, 7, 8, 7          OK 
30.8.23 17:30      0216240101-0008         9, 7, 8, 7          OK

31.8.23 10:50      0216240101-0040         11, 8, 9, 8         OK
31.8.23 11:30      GOC-7226-1-31           9, 9, 9, 8          OK
31.8.23 11:50      GOC-7226-1-23           9, 8, 7, 7          OK
31.8.23 12:10      GOC-7226-1-34           8, 7, 8, 7          OK

31.8.23 13:55      0261690101-0040         8, 7, 8, 7          OK


0261690101-0002, 0261690101-0012 by AIDA test bench, T9   Mezzanine book 2 indicates that these FEE64s have been tested OK ( 03/08 ) with a FEE64

6x untested FEE64 mezzanines in AIDA cupboard, T9

Noise test of CAEN N1419B in T9, STFC DL.

CAEN N1419B configured for floating output ( internal jumper removed ), +50V

DSO y: AC/1M x: 10us, 4us & 1us/div single shot/run 

Some HF noise transients observed but amplitude c. 5mV p to p.Noise otherwise appears to be white << 5mV rms.

17.00 USB-controlled ac mains relay - no water interlock ( yellow ) LED
      Water temperature ( station outside S4 entrance ) c. 19 deg C and pressure OK
      Flow can be felt on rubber outflow pipe from water manifold

      Failure of sensor or interlock box?

      *** Bypass interlock

16.58 Power ON

17.05 FEE64 temperatures OK - see attachment 


      All system wide checks OK

      per FEE64 p+n 1.8.W spectra - attachments 2-42021Apr29-13-16-00
      per FEE64 p+n 1,8.L spectra - attachment 5
       aida01 pulser peak width 15 ch FWHM
      per FEE64 Rate spectra - attachment 6 


      BNC PB-5 pulser
      Amplitude 10.0V
      Attenuation x10
      Decay 1ms
      Frequency 25Hz
      Polarity + ( n+n Ohmic test input from EG&G Ortec 534 Sum & Invert Amplifier not connected )
      Clamp ON

      ASIC settings 2021Apr29-13-16-00
      slow comparator 0x64

17.28 FEE64 temperatures - attachment 7
       all < 1 deg C difference cf. 17.05
      ADC data item stats OK - attachment 8

19.06 FEE64 temperatures OK - attachment 9

12.54 Power up

      All system wide checks OK

      per FEE64 p+n 1.8.W spectra - attachments 5-10
       20us, 200us and 2000us FSR
      per FEE64 p+n 1,8.L spectra - attachment 3
       aida01 pulser peak width 15 ch FWHM
      per FEE64 Rate spectra - attachment 4


      BNC PB-5 pulser
      Amplitude 10.0V
      Attenuation x10
      Decay 1ms
      Frequency 25Hz
      Polarity + ( n+n Ohmic test input from EG&G Ortec 534 Sum & Invert Amplifier not connected )
      Clamp ON

      ASIC settings 2021Apr29-13-16-00
      slow comparator 0x64


      FEE64 temperatures OK - see attachment 2
      ADC data item stats OK - see attachment 1


      MSL type BB18 24cm c 8cm DSSSD 3208-3/-21/-22

      p+n junction side - 21 Ohm resistnace between bias pins
      n+n Ohmic side - 152 Ohm resistance between bias pins
 
      => all bias bond wires OK

The Honeywell HSS-DPS dew point sensor indicator ( red LED ) is flashing c. 0.5Hz indicating humiidity > 90+/-3 %

Hanna HI9565 report d.p. 8.3 deg C, RH 36%, temperature 25 deg C

S4 area coolant water cntrols indicate water temperature 19 deg C. No evidence of condensation on AIDA coolant manifold.

Sensor fault?

12.50 Power up

      All system wide checks OK

      per FEE64 p+n 1.8.W spectra 20us FSR - attachments 3-4
      per FEE64 p+n 1,8.L spectra - attachment 6
       aida01 pulser peak width 15 ch FWHM
      per FEE64 Rate spectra - attachment 5


      BNC PB-5 pulser
      Amplitude 10.0V
      Attenuation x10
      Decay 1ms
      Frequency 25Hz
      Polarity + ( n+n Ohmic test input from EG&G Ortec 534 Sum & Invert Amplifier not connected )
      Clamp ON

      ASIC settings 2021Apr29-13-16-00
      slow comparator 0x64


      FEE64 temperatures OK - see attachment 1
      ADC data item stats OK - see attachment 2

15.00 DSSSD bias +60V +6.44uA - breakdown above c. 60V, bias +100V leakage current +20-30uA

      Slow comparator 0xa 

      aida03 LK3 fitted

      CAEN N1419ET grounded outputs
      HV#1 core aida04. braid aida10, aida1 & aida 9 

      BNC PB-5 
      Amplitide 10.0V
      Attenuation x10
      Decay time 1ms
      Polarity +
      Tail
      Frequency 25Hz

      test +/ test - daisy chains connected
      test - disconnected at EG&G Ortec 534 output