Catania 09 TB

Going to acquire:

1. Start counter (1 or 2): Scintillator
2. Tracker: DCH
3. Dump: Scintillator

Readout (splitted channels):

• 2 channels that go to Discriminator to NIM - ECL converter to Fast TDC.
• 2 channels go to WVF

Readout (splitted channels):

• 2 channels that go to Discriminator to NIM - ECL converter to Fast TDC.
• 2 channels go to WVF

Readout :

• 16 channels that go to discriminator to NIM - ECL converter to Fast TDC.

1. Low voltage Power supply for DCH readout [OK]
2. Low voltage Power supply for STC [OK]

1. Gas mixture: Ar, CO2, Iso [available @ CT]
2. Gas pipes + connections [available @ CT]
3. Mixer + fluximeter : to be brought

HV cables

1. 2 cables are needed for DCH [@ CT]
2. 2(3) cables are needed for Dump or CsI [@ CT]

LV cables

1. LV is needed by Photomultipliers of STC

Chmb Acquisition

1. Need 16 Long Lemo from CHMb to Discriminator
2. Need 16 short Lemo from Discriminator to Nim - Ecl converter
3. Need 16 flat cables from converter to TDC

STC + Dump Acquisition

1. Need 6 Long Lemo from detector to Splitter
2. Need 6 Short Lemo from Splitter to Discriminator
3. Need 6 Short Lemo from Splitter to WVD
4. Need 6 Short Lemo from Discriminator to Trigger Logic

Trigger Logic

1. Need Short Lemo cables from Discriminator to Coincidence unit

1. Two HV modules needed (one for STC + Dump and one for DCH)

1. One module plus cables is needed [brought it]

1. 1 PLU [need 1 as spare] for 4 input from scintillators
   1. Exit goes to
      • TDC trigger
      • WFD trigger
      • I/O reg trigger
2. Dual timer: needed to implement busy

1. Splitter [Splitting cables?? will save module]
   • Needed to split the output of Scintillators to TDC, WVD
   • Available only 4 Channels: Ok for 1 STC + Dump. Problem if STC>1 or DCH splitted
2. Discriminator
   • Need to discriminate 16 (max) DCH + 4 Dump + STC
   • Currently available only 8 chs : 2*8 chs missing
3. Coincidence Unit
4. I/O Register
5. Converter
   • 2 modules available: 1*16 + 1*8 = 24 chs total [OK]
6. Fast TDC
   • 64 Channels available [OK]
7. WaveForm digitizer
   • 8 Chs available with sampling @ 500 MHz [OK?]

The acquisition code is compiled on the CPU. Performs the reading of the various modules (returning each a vector with the needed information) and also the event writing. Writing is implemented as unformatted/binary.

1. Hardware: CPU
2. Code location: /home/daq/CT
3. Running instructions:
   1. compile with make acquire
   2. run with ./acquire + options.

Provided options are:

1. [-n] : number of events to be acquired
2. [-p] : number of events on which the ACQ rate is computed
3. [-f] : Full path to output file (binary, unformatted)
4. [-z] : switch on and off of zero suppression

1. Hardware: PC daq
2. Code location: /home/daq/acq
3. Running instructions:
   1. compile with make Analizer
   2. run with ./Analizer + options

Provided options are:

1. [-in] : full path top input file (link to data/ dire of acquisition is provided)
2. [-out] : output root file

1. Evt num
2. Num boards
3. Then for each of the boards in the event: b{j}_nwords [j=0,N_boards]
4. Then for each of the boards in the event: b{j}_words{i} [j=0,N_boards][i=0,b{j}_nwords]

Boards order:

1. IOREG
2. TDC1190
3. WVD

To be implemented

1. 1w →Evnum
2. 3w*n_firing_cha →For each firing channel 3 words containing event number channel and measurement are stored
3. 1w →Trailer (possible check of errors)

To test the zero suppression you need to test the 3rd word of the event, checking the 24th bit (if == 1 → zs data): data»24 & 0x1;

1. if zero suppression
   1. 1w → n of words in the event
   2. 1w → falg for checking ZS data
   3. 1w → mask of enabled channels
   4. 1w → Trigger time
   5. Then For each channel
      1. 1w → Total channel words [included this one]
      2. 1w → Number of 32 bit words skipped
         1. nsam*1w → Number of words with samples over threshold
         2. 1w → Number of 32 bits skipped
2. else
   1. 1w → n of words in the event
   2. 1w → falg for checking ZS data
   3. 1w → mask of enabled channels
   4. 1w → Trigger time
   5. 512w*ncha → 512 words for each enabled channel

1. Test TDC
2. Calibrations
   • 32 chs TDC
   • 8 chs