Design of a beam shaping assembly and preliminary modelling of a treatment room for accelerator-based BNCT at CNEA

This work reports on the characterisation of a neutron beam shaping assembly (BSA) prototype and on the preliminary modelling of a treatment room for BNCT within the framework of a research programme for the development and construction of an accelerator-based BNCT irradiation facility in Buenos Aires, Argentina. The BSA prototype constructed has been characterised by means of MCNP simulations as well as a set of experimental measurements performed at the Tandar accelerator at the National Atomic Energy Commission of Argentina.

► Characterisation of a neutron beam shaping assembly for accelerator-based BNCT.
► Measurements: total and epi-cadmium neutron fluxes and beam homogeneity.
► Calculations: Monte Carlo simulations with the MCNP code.
► Measured and calculated figure-of-merit parameters in agreement with those of IAEA.
► Initial MCNP dose calculations for a treatment room to define future design actions.