Monitoring system for deep storage of radioactive waste, uses fibreoptic coupled spectrometer is non intrusive

摘要

The monitoring system has a laser diode optical spectrometer (24-26) linked to the distant chamber (2) by an optical fibre (22) viewing a reflector (23) through a window (21) in the outer enclosure (3) to detect characteristic gas escaping from the inner enclosure (4) containing the radioactive waste (6).