A Versatile Modular Radiation Monitoring System
Don Dale and Daryl Bishop
TRIUMF
A modular microprocessor-based Radiation Monitoring System has been developed
for the detection of neutron, gamma and beta fields. The system consists of
distributed local monitoring stations located close to the radiation detectors.
A local monitoring station houses up to two Universal Detector Modules and a
power supply in a standard Eurocard cage. The Universal Detector Module
supports Geiger-Mueller tubes and photomultiplier detectors. The module
provides local display of averaged radiation fields and high radiation level
trip contacts. A local station can operate stand-alone or communicate with a
supervisory processor on an RS-422 highway. Experience with an installed system
is described.