Xenon emissions from medical isotope production facilities (MIPFs) and other nuclear installations affect the verification capability of the International Monitoring System (IMS) of the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO). In an effort to minimize the impact of this radioxenon and in order to mitigate, in general, the radionuclide emission, Atmospheric Transport Models are applied at INVAP on different stages of the design and development of type of facilities.
The design includes safety protection radiological analyses, either inside or outside the installations, and monitoring of gaseous effluent release into the atmosphere considering both normal operation as well as accidental cases.
In this work, examples of different capabilities and results for different cases are shown. The safety analyses are based on conservative Gaussian Plume models, which include the evaluation of systems performance, operational cases, atmospheric dispersion and transport of radionuclides, meteorological conditions, emission parameters and site characteristics.
This work done by INVAP contributes to the global effort and commitment promoted by the CTBTO to minimize the impact of radioxenon and in general of radionuclides emissions through the development and application of ATM on different stages of the design in nuclear facilities.