Authors: T. Fujii,H. Tanaka,A. Maruhashi,K. Ono,Y. Sakurai,
Journal: Applied Radiation and Isotopes
https://doi.org/10.1016/j.apradiso.2011.03.031
Abstract: In order to monitor stability of doses from the four components such as thermal, epi-thermal, fast neutron and gamma-ray during BNCT irradiation, we are developing a multiionization-chamber system. This system is consisted of four kinds of ionization chamber, which have specific sensitivity for each component, respectively. Since a suitable structure for each chamber depends on the energy spectrum of the irradiation field, the optimization study of the chamber structures for the epi-thermal neutron beam of cyclotron-based epi-thermal neutron source (C-BENS) was performed by using a Monte Carlo simulation code “PHITS” and suitable chamber-structures were determined.
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