32-Channel All-in-One CAMAC Module as a Basic Element of Anode Wire Read-out Systems for Proportional Chambers

Abstract

A special feature of the system is the integration of the amplifying section, signal delay unit, and digital section for the data outputting to computer into a common АДД-32 module (CAMAC). The 1-M-size АДД-32 module contains the electronics for 32 wires, which makes it possible to place up to 672 data channels in the CAMAC crate with a standard bus. To amplify signals, Ampl 8.3 eight-channel microcircuits are used. The output logic signals are delayed by 9-channel IDT72421 FIFO microcircuits enabling us to obtain a total signal delay of up to hundreds of microseconds and longer. The digital section of the system is based on ALTERA programmable logic arrays. At present, this system with a total of 576-channels is used in the PIBETA experiment to study rare pion decays on the PSI accelerator (Switzerland).