title: Radiation transport in a radiotherapy room.
abstract: The photoneutron dose equivalent in a linac radiotherapy room and its entrance maze was investigated by means of Monte Carlo simulations under different conditions. Particularly, the effect of neutron absorbers and moderator layers placed on the maze walls was considered. The contribution of prompt gamma rays emitted in absorption reactions of thermal neutrons was also taken into account. The simulation results are compared with some experimental measurements in the therapy room and in the maze.
authors.affiliation: Dipartimento di Ingegneria Nucleare, Politecnico di Milano, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Agosteo
authors.forename: A
authors.initials: A
authors.lastname: Foglio Para
authors.forename: B
authors.initials: B
authors.lastname: Maggioni
authors.forename: V
authors.initials: V
authors.lastname: Sangiust
authors.forename: S
authors.initials: S
authors.lastname: Terrani
authors.forename: G
authors.initials: G
authors.lastname: Borasi
mesh_terms: D005720:Gamma Rays; D006801:Humans; D009010:Monte Carlo Method; D009502:Neutrons; D011829:Radiation Dosage; D011878:Radiotherapy