Estimation and simulation of human exposure dose based on dynamic radiation field

Abstract

The issue of nuclear radiation protection is the most important issues in nuclear science and industry. One of the biggest challenges in this area are still the real-time accurate estimation of human exposure dose. Recently, several studies used the virtual reality technology to help on solving the above issue, which attract broad attention in the realm of nuclear engineering. This paper propose a real-time estimation method of human exposure dose based on dynamic 3D radiation field. With the virtual reality technology, this method can solve the difficulty in safety assessment of staff member in nuclear facility. First of all, 3D γ radiation field, neutron radiation field and concentration field of radioactive aerosols were calculated based on the γ radiation, neutron radiation and radioactive aerosols come from highly concentrated nuclear materials to get a comprehensive 3D dynamic radiation field in nuclear facility. Secondly, exposure dose was estimated based on the 3D radiation field and the average of both genders. Finally, to solve the problem of slow speed of loading in simulation process because of large amounts of data of 3D radiation field, an optimized loading method was proposed to realize the dynamic loading in real-time of 3D radiation field.