GSI TRB3

TRB3 is an FPGA-TDC board made and sold by GSI. It can achieve ~20ps timing resolution

Documentation

Main TRB documentation

Computer Setup Instructions

Currently have gotten this working on an Opensuse machine.

We setup TRB3 on a private network. So need machine with second ethernet port.

Full instructions to be written

Start-up Instructions

These are the basic instructions to initialize and take data from TRB3, using the GSI DAQ tools.

1. Start the trb3 program and initialize the TRB3

cd /home/tbr3_user/trbsoft/daqtools/users/triumf_trb171

source startup.sh

1. Start webbrowser: In new terminal, do

cd /home/tbr3_user/trbsoft/daqtools/web/ ./cts_gui --noopenxterm --port=1234 --endpoint=0xc001

open webbrowser and go to

http://localhost:1234

1. Start event builder: In new terminal, do

cd trbsoft/daqtools/users/triumf_trb171/

dabc_exe TdcEventBuilder.xml

4) Enable the readout of the channels we want.

i) Go to webpage

http://localhost:1234/tdc/tdc.htm

ii) Under 'board' set it to 0101.

iii) Then click 'enable' radio button

iv) Then, under 0101 set all the channel groups to on. Should then start seeing triggers for different channels (if we have signals going into channels).

v) Finally, disable the trigger window on the same page. On the section c801 click off and make sure it says 'disabled'. If trigger window is disabled then all triggers are accepted...

5) Setup the analyzer

source ~/trbsoft/trb3/trb3login

(This needs to be run in any terminal where you want to run the go4analysis

6) Create the set of calibration constants for the TDC

cd /home/tbr3_user/trbsoft/daqtools/users/triumf_trb171 rm cal*.cal (remove old calibration files) export CALTRIG=0; export CALMODE=-1; go4analysis -number 100000 -user /data/trb3_data/pulser17341151941.hld (need to change this to use the hld file that you want to use)

The resulting calibration files are called something like cal_010X.cal

7) Now analyze more events, using those calibration files

rm *root export CALTRIG=0; export CALMODE=0; go4analysis -number 1000000 -user /data/trb3_data/pulser17341151941.hld

now open the resulting root file

root -l Go4AutoSave.root

and use TBrowser() to look at the difference histogram