The 1st Nuclear Explosion Signal Screening Open Inter-Comparison Exercise 2021 was conducted from the end of 2021 to the end of 2022. The exercise evaluated different screening methods and procedures to identify radioxenon detections not consistent with the radioxenon background from civil nuclear facilities. It was based on a subset of a radioxenon test data set produced for the whole year of...
The CTBTO operates a worldwide network based on four complementary verification methods to detect any sign of a nuclear explosion conducted anywhere – underground, underwater or in the atmosphere. The radionuclide technology is the only one that can confirm whether an event is indicative of a potential nuclear test.
The four CTBT-relevant radioxenon isotopes are fission products. They are...
The CTBTO is setting up and operating a worldwide network of stations to monitor the globe for evidence of potential nuclear tests. Radioxenon plays a crucial role when determining whether an event is of CTBT-relevance. Specific measurement systems have been developed in the past decades and recently enhanced with a new generation of noble gas systems. Tailored analysis methods have been...
