A dedicated high-speed trigger generation processor for selecting single particle decay events using coordinate signals from hodoscopes of scintillation counters

Abstract

A dedicated high-speed trigger generation processor is described. This processor is used to select a single particle (K-meson) decay event on the decay base of the OKA experimental setup at the Institute for High Energy Physics. Useful events are selected by coordinate signals from hodoscopes of scintillation counters with the aid of preprogrammable memory lookup tables. The trigger generation time is <150 ns. A set of 64-channel ЛЭ-76 register modules and a decision-taking ЛЭ-79 module, all based on Altera FPGA technology, are included as components of the processor unit.