Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8083789 | Nuclear Engineering and Technology | 2018 | 7 Pages |
Abstract
To improve the accuracy and safety of irradiation tests in High flux Advanced Neutron Application ReactOr (HANARO), the nuclear energy deposition rate, which is called nuclear heating, was estimated for an irradiation capsule with an iridium sample in the irradiation hole in order. The gamma rays emitted from the radioisotopes (RIs) of the structural materials such as flow tubes of fuel assemblies and heavy water reflector tank were considered as radiation source. Using the ORIGEN2.1 code, emission rates of delayed gamma rays were calculated in consideration of the activation procedure for 8 years and 2 months of HANARO operation. Calculated emission rates were used as a source term of delayed gamma rays in the MCNP6 code. By using the MCNP code, the nuclear heating rates of the irradiation capsules in the inner core, outer core, and heavy water reflector tank were estimated. Calculated nuclear heating in the inner core, outer core, and heavy water reflector tank were 200-260Â mW, 80-100Â mW, and 10Â mW, respectively.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
Tae-yang Noh, Byung-Gun Park, Myong-Seop Kim,