CAMAC Gate Fanout N-MC-33

摘要

The N-MC-33 CAMAC gate fanout is designed to aid the gating function used within the digital data acquisition system for nuclear events. The gating feature locks out portions of the digital system while undesirable signals pass through the input lines. Many of the recording devices receive their gate control signals from the same gate source. Thus, electronic fanouts are required to distribute the gate control signal separately to each device. NIM-standard level fanouts were a problem because of the low output voltage and long cable connection between fanouts and recording devices. The long cable runs integrate the output pulse so that the amplitude is attenuated to below a NIM's trigger threshold. We developed the CAMAC gate fanout to allow two NIM-standard inputs from two gate sources to be ORed together to produce ten outputs. Eight of the outputs are double-voltage (-1.6 V) NIM-standard signals that track the input pulse width. The remaining two outputs are logically complemented from the other eight. The unit is packaged in a single-width CAMAC-standard module. (ERA citation 09:017101)