title: Development of monitoring method of spatial neutron distribution in neutrons-gamma rays mixed field using imaging plate for NCT--depression of the field.
abstract: The degree of depression in the neutron field caused by neutron absorption in the materials of an imaging plate (IP) was investigated using MCNP-4C. Consequently, the IP doped with Gd, which reproduced the distribution of (157)Gd(n,γ)(158)Gd reaction rate in the previous study, depresses the relative distribution by about 50%. The depression for the IP in which Gd is replaced with similar amount of B atoms was estimated to be about 10%. The signal intensity for this IP is estimated to be at a similar level with that for Gd-doped IP.
authors: Center of Medical Education, Sapporo Medical University, Chuo-ku, Sapporo, Japan. tanakaken@sapmed.ac.jp
authors: Kenichi
authors: K
authors: Tanaka
authors: Satoru
authors: S
authors: Endo
authors: Masaharu
authors: M
authors: Hoshi
authors: Jun
authors: J
authors: Takada
mesh_terms: D016754:Boron Neutron Capture Therapy; D005720:Gamma Rays; D009502:Neutrons