Validation of the Serpent 2 code on TRIGA Mark II benchmark experiments

• Monte Carlo calculation using Serpent code is demonstrated.
• We model two experiments using 3-D TRIGA research reactor model.
• Results were compared to to Monte Carlo code MCNP and experimental results.
• Good agreement with the experimental and excellent agreement with MCNP results.

The main aim of this paper is the development and validation of a 3D computational model of TRIGA research reactor using Serpent 2 code. The calculated parameters were compared to the experimental results and to calculations performed with the MCNP code. The results show that the calculated normalized reaction rates and flux distribution within the core are in good agreement with MCNP and experiment, while in the reflector the flux distribution differ up to 3% from the measurements.