title: Neutron generator (HIRRAC) and dosimetry study.
abstract: Dosimetry studies have been made for neutrons from a neutron generator at Hiroshima University (HIRRAC) which is designed for radiobiological research. Neutrons in an energy range from 0.07 to 2.7 MeV are available for biological irradiations. The produced neutron energies were measured and evaluated by a 3He-gas proportional counter. Energy spread was made certain to be small enough for radiobiological studies. Dose evaluations were performed by two different methods, namely use of tissue equivalent paired ionization chambers and activation of method with indium foils. Moreover, energy deposition spectra in small targets of tissue equivalent materials, so-called lineal energy spectrum, were also measured and are discussed. Specifications for biological irradiation are presented in terms of monoenergetic beam conditions, dose rates and deposited energy spectra.
authors.affiliation: Department of Radiation Biology, Hiroshima University, Japan. endos@ipc.hiroshima-u.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Endo
authors.forename: M
authors.initials: M
authors.lastname: Hoshi
authors.forename: J
authors.initials: J
authors.lastname: Takada
authors.forename: H
authors.initials: H
authors.lastname: Tauchi
authors.forename: S
authors.initials: S
authors.lastname: Matsuura
authors.forename: S
authors.initials: S
authors.lastname: Takeoka
authors.forename: K
authors.initials: K
authors.lastname: Kitagawa
authors.forename: S
authors.initials: S
authors.lastname: Suga
authors.forename: K
authors.initials: K
authors.lastname: Komatsu
mesh_terms: D004307:Dose-Response Relationship, Radiation; D005214:Fast Neutrons; D007204:Indium / Q000528:radiation effects; D018499:Linear Energy Transfer; D009502:Neutrons; D011853:Radiobiology; D011874:Radiometry
chemical_list: D007204:Indium