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Applied radiation and isotopes, 2022-06, Vol.184, p.110156-110156, Article 110156
Ort / Verlag
England: Elsevier Ltd
Erscheinungsjahr
2022
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
Operated by the Comprehensive Nuclear-Test-Ban Treaty Organisation, the International Monitoring System is used by almost 200 nations to monitor for nuclear weapons tests. The IMS is still under development, and the Comprehensive Nuclear-Test-Ban Treaty has not yet entered into force, however the radionuclide component has proved instrumental in radically changing both nuclear verification science and researchers’ understanding of the dynamic global radiation background. After more than 20 years, the network is mostly complete, however the technology utilised for the particulate monitoring component remains practically the same, despite a number of laboratories developing coincidence systems that can offer orders of magnitude improvements in detection sensitivity and reliability. This paper describes the status of the technology, and the advantages of implementing this within the International Monitoring System. Furthermore, the performance of a prototype system developed by the Comprehensive Nuclear-Test-Ban Treaty Organisation is presented, and the implications of introducing this technology considered.
•CTBT particulate network provides high sensitivity but sparse detection capability.•With current technology, plume tracking is rarely possible.•γ−γ systems improve IMS sensitivity for all nuclides, by up to a factor of 10.•Dual systems have no downsides — improving reliability and durability possible.•Upgrading the IMS with γ−γ would greatly improve verification capability.