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Michael Wallbank, 07/01/2019 09:42 AM


Front-end information

V1742/V1495 channel mapping (Last Modified: June 27 2019)

Input                            | Digitizer Channel | Trigger Channel 
---------------------------------+-------------------+------------------
Cherenkov                        | 0                 | NC
Scintillator Paddle 1 (Mock WC1) | NC                | 4
Scintillator Paddle 2 (Mock WC2) | NC                | 5
Scintillator Paddle 3 (Mock WC3) | NC                | 6
Scintillator Paddle 4 (Mock WC4) | NC                | 7
ToF DS 5 (SiPM)                  | 4                 | NC
ToF DS 6 (SiPM)                  | 5                 | NC
ToF DS 7 (SiPM)                  | 6                 | NC
ToF DS 8 (SiPM)                  | 7                 | NC
ToF US 1 (PMT)                   | 8                 | NC 
ToF US 2 (PMT)                   | 9                 | NC
ToF US 3 (PMT)                   | 10                | NC
ToF US 4 (PMT)                   | 11                | NC
ToF DS 1 (PMT)                   | 12                | NC
ToF DS 2 (PMT)                   | 13                | NC
ToF DS 3 (PMT)                   | 14                | NC
ToF DS 4 (PMT)                   | 15                | NC
WC 1 Logic                       | NC                | 0
WC 2 Logic                       | NC                | 1
WC 3 Logic                       | NC                | 2
WC 4 Logic                       | NC                | 3
Readout Gate                     | NC                | 8
Switchyard Gate                  | NC                | 9
MWPC Off                         | NC                | 10
Digitizer Busy                   | NC                | 11
MWPC Coincidence                 | NC                | 12
TOFPrompt Logic                  | NC                | 14
TOFSlow Logic                    | NC                | 15

VME crate

As user novadaq, the directory

/home/nfs/novadaq/

on novabeamlinedaq00 contains some useful utilities to communicate with the hardware. All CAEN provided software.

Run CAEN upgrader GUI:

./CAENUpgrader-1.6.3/CAENUpgraderGUI/CAENUpgraderGUI

Run CAEN V1742 digitizer (outside of DAQ):

wavedump-3.8.2/bin/wavedump /etc/wavedump/WaveDumpConfig_X742.txt

Run CAEN VME module:

./CAENVMELib-2.50/sample/CAENVMEDemo V2718 <base address, in hex (beginning 0x)> <link>

With this utilities, one can set the base address (option 2), set a register (option 1) and read etc.

CAEN base addresses:
Board Address
1742 3211
2495 3210
1495 0100

V1742 Digitizer

Post-Trigger

The V1742 has a register named POST_TRIGGER. This value is a percentage of the readout that is to be after the trigger. There is an implicit latency of around 40 ns, so in reality, the Post-Trigger percentage sets the percentage of the readout that will be after 40 ns past the trigger.

For an unknown reason, only certain values of POST_TRIGGER are accepted and must be found by trial and error.

Known working values

  • 0
  • 20
  • 45

MWPC Controller(s)

Beamline:
  • Hardware address: 00.80.55.00.00.68
  • IP address: 131.225.176.70
  • Name: ftbfwc03
  • CD system reference number: S22041
  • CD equipment ID number: 557912
Target:
  • Hardware address: 00.80.55.EE.00.08
  • IP address: 131.225.176.164
  • Name: ftbfwc07
  • CD system reference number: S22056

Log in (e.g.):

telnet ftbfwc03 <port>
Ports (according to here)
  • 5000 - daq apps
  • 5001 - emergency access
  • 5002 - telnet sessions

MWPC Configuration and Registers