Pibeta trigger electronics March 2000
In March 2000, a new trigger has been added to the LB500 logic, which
is sensiteive to back-to-back particles like our pibeta trigger. Instead
of requireing two hits above the high threshold, it requires one hit above
the high threshold and one above the low threshold, and therefore suited
for pi->e nu gamma and similar processes.
The cabling has not been touched and stays the same as for the August 1999 trigger. Only the LB500 units
have been reprogrammed for the new trigger. Click on one of the green units
below to see the new internal programming.
S. Ritt, March 22nd, 2000