Vienna, Austria
  26 Jun 2017 - 30 Jun 2017

M. Sabzian1 , M.N. Nasrabadi2

1University of Isfahan, Faculty of Advanced Sciences and Technologies, Isfahan, Iran
2University of Isfahan, Isfahan, Iran


The radionuclide monitoring network of the comprehensive nuclear-test-ban treaty International Monitoring System (IMS) consists of 80 radionuclide stations and 16 radionuclide laboratories. Forty of these stations shall also at entry into force of the Treaty be capable of monitoring for the presence of relevant noble gases. Four xenon radioisotopes of interest are the following: 131mXe, 133mXe , 133Xe and 135Xe. In some cases after analysis of air extracted radioxenon isotopes, an archive bottle from a xenon system needs to be re-measured by laboratories to confirm the results. Laboratory system shall include noble gas extraction, precise volume and activity measurement equipment. Islamic Republic of Iran Radionuclide Laboratory (IRL) has been designed and established with radioxenon analysis capability. This Paper is focused on the design and implementation of gas extraction and volume measurement parts of the system and presents its performance based on the inter-comparison exercise and standard sample analysis results.