Computational analysis of irradiation facilities at the JSI TRIGA reactor

Characterization and optimization of irradiation facilities in a research reactor is important for optimal performance. Nowadays this is commonly done with advanced Monte Carlo neutron transport computer codes such as MCNP. However, the computational model in such calculations should be verified and validated with experiments. In the paper we describe the irradiation facilities at the JSI TRIGA reactor and demonstrate their computational characterization to support experimental campaigns by providing information on the characteristics of the irradiation facilities. - Highlights: ► TRIGA reactor at JSI suitable for irradiation under well defined conditions. ► It features irradiation channels of different fluxes, spectra, and dimensions. ► Computational model has been developed and experimentally verified. ► The model used for optimization of experiments and evaluation of uncertainties.