Testing and provisional operation of the IMS radionuclide monitoring network

Abstract

A worldwide radionuclide network of 80 stations, including 40 with noble-gas-detection capability forming part of the International Monitoring System, has been designed to monitor compliance with the Comprehensive Nuclear-Test-Ban Treaty. Pending entry into force of the Treaty, the certified stations are operating provisionally and so far an experience of over 100 station-years has been acquired for particulate stations. Noble gas systems are still under testing, though the operational experience is fast growing. A maintenance strategy is being developed on the basis of the experience acquired so far and the analysis of equipment failure.