WR timestamps appear to be OK but readout times fort aida03, aida04 and aida09 appear to be out of sequence. Attachment 1-3.

Reseated HDMI cable of aida09 and performed complete powercycle. Check the MACB HDMI port (appears to be loose) - still no change aida09 not collecting WR timestamps. Attachment 4-5.

15.32 1.8.W spectra for aida01, aida09, aida10, aida11, aida12 (attachments 1, 2, 3)
      2 and 3 expanded in Y and X direction respectively

15.35 good event statistics (attachment 4)
      FEE temperatures (attachment 5)
      leakage currents/bias (attachment 6)

17.20 attachment 7 - loose ground wire
      attachment 8,9,10 - pictures of wire connections
      attachment 11 - side on view of dsssd mounted in aida snout

17.28 Pulser widths:
      aida10 -> 101.24
      aida09 -> 136.22
      aida11 -> 66.31
      aida12 -> 87.17
      aida01 -> 15.29   

11.25 System wide checks OK except aida06 clock fail status 6 - attachments 1-13

      ADC data item stats - attachment 14

      FEE64 temperatures OK - attachment 15

      DSSSD bias & leakage currents - attachment 16
  
      DSSSD#1 OK. DSSSD#2 leakage current has increased from c.5uA to c. 11uA overnight.


11.43 per FEE64 1.8.W spectra - 20us, 200us, 2ms, 20ms FSR - attachments 17-24

      per FEE64 1.8.L spectra - attachments 25-26
          aida12 1.8.L pulser peak width 143 ch FWHM
          aida02 1.8.L pulser peak width 439 ch FWHM

      Per FEE64 rate spectra - attachment 27

12.00 Cycled DSSSD#2 bias from -100V to 0 to -100V leakage current -7.7uA but ramping slowly (c. 5nA/10s ... ?)

13.26 DSSSD#2 bias -100V leakage current -8.54uA

15.46 - Noticed that DSSSD#1 braid no longer has filter, DSSSD#1 core still does. DSSSD#2 is unfiltered on both.

      - Swap FEE64 power connectors #3 with #4, and #6 with #7, this means both n+n FEE64s are on the same paired channel

      No significant change to stats

      - Notice braid was only connected to FEEs 4 and 8, which meant beam-left bias guard ring 0v was floating. Use T to bring bias braid over to FEES 2 and 6 as well.
        Middle bias guard ring 0v is still floating

      No significant change to stats, amplitude of 100 kHz waveform in n+n waves seems attenuated though

     aida12 1.8.L pulser peak width 76 ch FWHM
     aida02 1.8.L pulser peak width 438 ch FWHM
 
     Attachment 28 - HV leakage current
     Attachment 29 - FEE ADC stats
     Attachment 30 - p+n side waveforms
     Attachment 31 - n+n side waveforms
     Attachment 32 - p+n pulser peak widths
     Attachment 33 - n+n pulser peak widths

15.55 - Reattach filter to DSSSD#1 braid

     No major change, possible improvement in waveforms 
     Attachment 34 - Stats
     Attachment 35,36 - waveforms

16.46 - Reattach LK1 jumper to FEES 2, 4, 6, 8

     Waveforms look OK, p+n rate slightly worse?
     Attachment 37 - Stats
     Attachment 38, 39 - waveforms
     Attachment 40 - Per FEE Rates

10:30 DAQ appears to have stopped

      Attachment 2 - DSSSD bias and leakage current OK

      Attachments 1, 3-5 - zero rate adc data items all FEE64s - note aida08 adc data item counter zero

      RESET/SETUP/GO aida08 *only*
      DAQ STOP *all* FEE64s


      Attachment 6 - FEE64 temperatures OK

      Attachments 7-23 - system wide checks - all OK

10:48 DAQ GO *all* FEE64s
      all spectra zero'd

      attachment 29 - ADC data items
       n+n FEE64s aida02, 4, 6 & 8 c. 250k
       p+n FEE64s aida07, 9 & 12 c. 100-150k, all other FEE64s < 100k

      attachments 26 & 27 1.8.L spectra
       aida01 peak width 112ch FWHM
       aida02 peak width 485 ch FWHM

      attachments 24 & 25 1.8.W spectra 20us FSR
      
      attachment 30 - aida05 1*H spectra - aida05 asic#1 is producing HEC data

      attachment 31 - aida05 also producing disc data

      attachments 32 & 33 merger and tape server OK - 14MB/s to disk - no data to MBS currently? 


18.36 Disconnect ribbon cabling from adaptor PCB - continue to observe HEC events from aida05 asic#1
      Disconnect test inputs from adaptor PCB - continue to observe HEC events from aida05 asic#1

      Conclude aida05 asic#1 has probably failed in operation and should be replaced. Other FEE64s are currently in CRYRING hall and measurement is in progress - ML says we should be able to access Monday.

The upstream window of the AIDA detector assembly consists of 2x 50um aluminized mylar

Attachment 1 - detail of MSL type BB18(DS)-1000 p+n junction side strips, bias ring, multiple guard rings, filed 
plates and bond wires

Attachment 2 - MSL type BB18(DS)-1000 with Kapton PCBs attached

Attachment 3 - MSL type BB18(DS)-1000 with Kapton PCBs + 3M 1245 copper foil-screened Samtec FTSH ribbon cables 
attached

Attachment 4 - AIDA snout installed (with 1x DSSSD) with cabling to 4x FEE64s in AIDA support assembly

Attachment 5 - AIDA + FATIMA array

Attachment 6 - AIDA FEE64 PSUs, network switch, USB-controlled ac mains relay

Attachment 7 - AIDA MACBs, pulser, detector bias

Attachment 8 - FATIMA DAQ

Attachment 9 - DESPEC 19" racks on detector platform

The AIDA downstream window ('endcap' of snout) consists of 2x 50um aluminized mylar sheets

Attachment 1 - analyser.f 

Modified version of TDR format analyser program to handle 64 bit WR timestamps

Attachment 2 - analyser program output

12092 blocks = 773888kb

8 timewarps

0 information code 5 data items

data file does not commence with either information codes 5 or 4

times/rates not correctly calculated - program assumes 10ns/tick 

Attachment 3 - od -x output 

Analysis of data file R2_0

Attachment 1 - summary output of TDR analyser

Attachment 2 - verbose output of TDR analyser

nnrpi1 - FEE64 system consoles

nnrpi2 - USB-controlled ac mains relay, CAEN N1419ET

username: pi
password: *******

To startup TclHttpd server for web access via port 8015 execute
 
 /MIDAS/TclHttpd/Linux-arm/TclHttpd-server

Update - 9 March 2020 command line should be

/MIDAS/TclHttpd/linux-arm/TclHttpd-server

Analysis of file GSIJan19/R1_0 (white rabbit data)

attachment 1 - overall statistics

attachment 2 - verbose output listing all data around first six identified timewarps

attachment 3 - analyser.f (old version for 48 bit timestamp)

attachment 4 - analyser.f (new version for 64 bit WR timestamp)

Observations

1) File does not commence with information type 4 & 5 data items

   DAQ/TapeServer start sequence issue??

2) DAQ RESUMEs observed for all FEE64s - DAQ PAUSEs *not* observed

3) Number of information type 4 & 5 data items for each FEE64 *not* the same

4) reported idle & elapsed times incorrect - presumably analyser.f bug

 

Attachment 1 - summary analysis R2_0

               increased slow comparator & LEC/MEC fast comparators cf. R1_0 to minimise random noise

Attachment 2 - summary analysis R3_0

               per R2_0 but BNC PB-5 pulser frequency increased from c. 2Hz to c. 1kHz
               pulser to *all* channels 12x FEE64s

Attachment 3 - summary analysis R4_0

               open TapeSever file, DAQ GO, Start ASIC Readout (*correct* DAQ start sequence)

Observations

- some RESUME but *zero* PAUSE data items observed

- information types 4 & 5 not equal for R2_0 and almost, but not quite, equal for R3_0 & R4_0 

- information types 4 & 5 start data file with 'correct' DAQ start sequence

           

Summary statistics for WR test data files R1_0, R2_0, R3_0, R4_0, R7_0 and R10_0 (attachments 1-6)

Latest version of WR TDR data analyser (attachment 7)

AIDA snout length 37cm (from end of AIDA snout support assembly)

downstream scintillator (assembly depth 1cm)   36cm

downstream dsssd (#1)                          35.2cm

                 (#2)                          34.3cm

                 (#3)                          33.4cm

upstream dsssd   (#4)                          32.5cm

upstream scintillator (assembly depth 1cm)     31.7cm

Cable lengths required are therefore

downstream dsssd (#1)           35.2 - 10.5 + 2.15 + 5 + 22.5 = 54.35cm 21.4"

                 (#2)           34.3 - 10.5 + 2.15 + 5 + 16.5 = 47.45cm 18.7"

                 (#3)           33.4 - 10.5 + 2.15 + 5 + 10.5 = 40.55cm 16.0"

upstream dsssd   (#4)           32.5 - 10.5 + 2.15 + 5 + 4.5 = 33.65cm 13.2"

length of RH Kapton PCB coupler = 10.5cm (Carlo can you check please?)

turning the corner at the base of the AIDA snout support assembly 2.15+5=7.15cm
(see Peter's drawing)

distances to FEE64s 4.5, 10.5, 16.5 and 22.5cm
(see Peter's drawing)

f we use 3x DSSSDs then the cable lengths required will be as follows:

downstream dsssd (#1)           35.2 - 10.5 + 2.15 + 5 + 16.5 = 48.35cm 19.0"

                 (#2)           34.3 - 10.5 + 2.15 + 5 + 10.5 = 41.45cm 16.3"

upstream dsssd   (#3)           33.4 - 10.5 + 2.15 + 5 + 4.5 = 34.55cm 13.6"

1) Login to Raspberry Pi 

ssh pi@nnrpi2

2) Kill any instances of the TclHttpd server

ps -ef | grep TclHttpd
kill -9 <pid>

3) Start server

/MIDAS/TclHttpd/linux-arm/TclHttpd-server &

Double peaking normally indicates periodic baseline variations with period comparable to shaping time