cpp_tof_grouping

A simple tool to test TOF counters grouping to trigger bits This simple tool is to calculate two parameters:

1. acceptance for CPP 2 pion events below 500MeV with respect to the acceptance of "one trigger bit per one TOF counter" trigger organization,
2. The ratio (in arbitrary units) of the signal acceptance and background trigger rate (data from the latest CPP test run)

One color in the scheme designates one trigger group (max of 16 groups allowed). To calculate parameters, press Calculate button (takes few seconds). To modify trigger grouping: click on the small color square on the left, if active it will be bold outlined; than click on the TOF counters - they will take corresponding color. The scheme below is showng number of counters in groups.

For questions email Ilya: ilarin@jlab.org