09.30: AIDA still running, not writing to file
       Still running ok
       No water leaks

09.45: FEE64 temperatures ok (attachment 1)
       Good event statistics ok (attachment 2)

10.00: Results of System Wide Checks
       ADC Calibration check (attachment 3)
       Clock Status (attachment 4)
       Sync error counter (attachment 5)
       White Rabbit Decoder status (attachment 7)
       Memory Information (attachment 8) 
       
10.30: Clock ReSync performed (attachment 6)
       Start writing to file TapeData/NULL/R7_0

11.50: DAQ stopped, TapeServer stopped
       
       TapeServer restarted, DAQ restarted

       Writing to file TapeData/NULL/R9_0 with Clock ReSync at start.

       Wasn't writing to disk, restarting (DAQ stop, TapeServer stop, TapeServer start TO DISK, DAQ Start)

       Writing to file TapeData/NULL/R10_0

12.04: DAQ stopped, TapeServer stopped, merger stopped
       FEE64 power relay switched off
       Raspberry PIs switched off and disconnected
       water cooler stopped
       Mains IEC cables removed from relay

       
        

AIDA@DESPEC MACB time switch settings before and after WR are as follows.

Attachment 1 - MACB 1-4 from left to right

MACB number:                           1        2        3        4

100MHZ clock setting (before WR):      0        2        2        2

White Rabbit setting (after WR):       3        3        3        3

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

           

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

 

1) Click on item "Merger MK2" in top panel
   This kills any existing Merger existence and loads a new copy.

2) Start (if needed) browser conection to localhost:8115.

3) Click on "NewMerger Control"

4) In NewMerger Control, click "Reload"

5) If MergerState = IDLE, click "SETUP".

6) Wait until state = STOPed

7) If links shown are correct, click "GO"

8) Wait until popup about "Resume Merger" appears and click OK

9) when writing to disk, click "Forward Output to Data"

10.30 AIDA setup and DAQ start complete
      writing to file TapeData/NULL/R1

      FEE64 Temperatures and Good event statistics ok (attachments 1 and 2)

11.00 results of analyser - shows significant number of timewarps in aida07, and a few in aida01-04

11.24 compared timestamps between mbs and AIDA, agree to 8 digits (attachment 3)

12.49 DAQ and Merger stopped and restarted

      Raised slow comparator threshold from 0xa to 0x64

      Raised fast comparator threshold (LEC/MEC) from 0xf to 0xff

12.51 Good event statistics: aida08 running at a normal rate

      pulser peak (1.8.L) no longer has noise shoulder (attachment 4)

      writing to file TapeData/NULL/R2


13.58 stopped writing to file. Pulser frequency increased to 1 kHz

      writing to file TapeData/NULL/R3

15.00 file R4 - DAQ startup

17.58 trimmed and re-crimped ground wire on aida08
      lowered pulser freq back to 50Hz
      reduced slow comparator threshold to 0xa, fast comparator threshold (LEC) to 0xf

      good event stats ok, aida08 no longer running hot (attachment 6)
      1.8.L and 1.8.W spectra of aida08 (attachment 5)
      pulser peak width now at 55.71

      FEE64 temperatures ok (attachment 7)

Post White Rabbit update

Attachment 1 - 1.8.W pulser waveform spectra for all FEE64
             - pulser signals observed in all FEE64

Attachment 2 - good event statistics - aida08 has significant noise

Attachment 3 - FEE64 temperatures - all ok, but firmware version not displayed

Attachment 4 - 1.8.L pulser peak spectra

             - widths:

             aida01 - 23.66
             aida02 - 19.76
             aida03 - 20.43
             aida04 - 18.82
             aida05 - 20.05
             aida06 - 41.04
             aida07 - 21.24
             aida08 - 205.02 (noisy FEE64)
             aida09 - 24.81
             aida10 - 22.85
             aida11 - 13.98
             aida12 - 19.90

Attachment 5 - New Merger statistics

Attachment 6 - Raw data stream

Pictures of leaking cooling pipe

MACB switch settings

AIDA mount - needs rotated

Attachment 11 - AIDA@DESPEC MACB settings - 100MHz and WR

Attachment 1 - 1.8.W waveform spectra with pulser signal

Attachment 2 - 1.8.L pulser peak spectra

widths: aida01 - 16.06
       
        aida04 - 20.68

        aida05 - 14.03

        aida08 - 73.02

        aida09 - 669.29

        aida11 - 405.35

        aida12 - 397.6

Attachment 3 - good event statistics
               fast comparator threshold (LEC) at 0xff
               FEEs 8,9,11,12 running hot

Attachment 4 - FEE64 temperatures - all ok

System wide checks ok, except aida02 fails ADC calibration

Leak found in seal on cooling pipe, switched power off

11.12 System wide checks ok (attachment 1)
      FEE temperatures ok (attachment 2)
      bias/leakage currents ok (attachment 3)

11.13 1.8.W spectra for naida 1,9,10,11,12 (attachment 4)
      1.8.W spectra expanded in Y direction (attachment 5)
      pulser peaks (attachment 6)
      
11.20 pulser peak widths:
      
      Aida10 -> 98.82

      Aida09 -> 109.17

      Aida11 -> 71.72

      Aida12 -> 92.82

      Aida01 -> 24.05

11.23 hit rates (attachment 7)

11.41 pictures of setup with scintillator mounted (attachment 8-14)

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 data file R2_0

Attachment 1 - summary output of TDR analyser

Attachment 2 - verbose output of TDR analyser

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   

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 

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

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

09:57 Alpha run stoppped R2_0 -> R2_2

      Thresholds dropped from 0x64 to 0xa
      Pulser turned on again
      System wide checks ok
      FEE Temp ok - attachment 1
      Bias ok, leakage at 1.485uA at 160V
      Stats in similar place to yesterday - attachment 2

      Low Energy pulser walkthrough
      1.0V to 0.4V in 0.1V steps
      2 minutes per step
      Pulser at 50Hz
10:29 Run started R3_0

10:45 Run stopped R3_2
      1.8.L spectra for low energy pulser walkthrough - attachment 3

11:00
 High Energy pulser walkthrough
      1.8V to 0.V in 0.2V
      2 minutes per step
      Pulser at 50Hz

11:06 Run started R4_0

10:18 Run stopped R4_2
      1.8.L spectra for high energy pulser walkthrough - attachment 4

On the 18th of September we installed DSSD 3208-14

Was found to have problems including exponential leakage behavior

  V      Ic
 -5   15.4uA
 -10  53uA
 -15  Tripped at over 100uA

Cables were double checked, bond wires were checked and no problems could be observed.

DSSD replaced with 3208-15

Bias at -100V Ic 10.2uA GP/grnd Jumpers removed,
                         rising upwards, possible short circuit as well.

Jumpers replaced

Bias -100V Ic 1.6uA
Bias -160V Ic 1.62uA

Possibility that mechanical sample 3208-17 and 3208-14 have been swapped. (To check at later date)

FEEs powered up and Adapter boards and all grounding installed with DSSD going to 9,10,11 and 12

Rates shown - attachment 1
Waveforms - attachment 2-4
1.8.l Spectra - attachment 5
FEEs 10 and 11 around 60FWHM and 9 and 12 around 80-90FWHM
Stats page - attachment 6

Aluminium foil used to make sure all ports are light tight shows a stats drop of around half - attachment 8

New peak widths

aida09 - 79.65
aida10 - 67.37
aida11 - 59.99
aida12 - 97.83

Going to begin a systematic study of shaping time

                              FWHM
Shaping Time   aida09   aida10   aida11   aida12
   
     8          79.65   67.37    59.99     97.83
     7          97.55   70.84    62.67     115.34
     6         100.72   70.04    62.77     120.05
     4         147.47   80.64    71.34     167.23
     2         217.62   114.98   133.35    232.47

Shaping time 8us 1.8.L Shots 
Shaping time 4us Stats appear obviously worse - attachment 7
                 1.8.L Widths - attachment 8
Shaping time 2us Stats appear worse again - attachment 9
                 1.8.L Widths - attachment 10
Shaping time 6us Stats are better than 2 and 4 - attachment 11
                 1.8.L widths - attachment 12
Shaping time 7us Stats are better than 6 - attachment 13
                 1.8.L widths - attachment 14


8us is the optimum shaping time.
Taken back to 8us and similar shaping times are observed.

Connected the ground of all 4 adapter boards with direct cables. Observed improvements in both FEEs 9 and 12
however the noise in 11 went
through the roof >500kHz - attachment 15

Tested just having 9,10 and 12 connected the rates are comparable to when disconnected - attachment 16

All 4 grounded together with a ground running to the snout as well stats No difference to all 4 together -
attachment 17
              1.8.L Widths - attachment 17
aida09 104.76
aida10 84.58
aida11 281.77
aida12 82.58

Tested just having 10 and 12 directly connected. Same side of the DSSD: Noise is the same as when disconnected.
Stats - attachment 19
1.8.L spectra - attachment 20

aida09 107.13
aida10 67.02
aida11 66.78
aida12 131.51

Tested having 11 and 12 connected directly. This is the two adapter boards responsible for the bias with 11
carrying the core and 12 the braid.
Massively reduced noise in 9 and 12, comparable noise in 10 but much more noise in 11. Stats - attachment 21
aida09 63.96
aida10 76.64
aida11 125.96
aida12 68.05
1.8.L spectra - attachment 23



18:39 Alpha run started in /TapeData/Sep18/R2
      Writing at 96kb/s
      11 Was fast at start bus asic control brought it down




                 

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