title: [Development of a pin-hole camera using a phosphor plate, and visualization of the scattered X-ray distribution and optical image].
abstract: In order to obtain an image of scattered X-ray in the diagnosis domain, we have newly developed a pin-hole camera. Because of the necessity of the X-ray shielding, the pin-hole part has a depth corresponding to that of the shielded material. As a result, efficiencies of obliquely incident X-rays are reduced. To decrease the descent of the efficiencies, we developed a large camera using a 10 × 12 inch size phosphor plate as an X-ray detector. A phantom was irradiated by X-rays with conditions of 500 mAs and 5000 mAs, and images of scattered X-rays were obtained. The former image showed scattered X-rays from the phantom. The latter image showed those from the air of beam axis as well as from the phantom. Moreover, we made a new proposal to obtain an optical image using the fading effect.
authors.affiliation: Institute of Health Bioscience, The University of Tokushima Graduate School.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Hayashi
authors.forename: Shou
authors.initials: S
authors.lastname: Taniuchi
authors.forename: Naotaka
authors.initials: N
authors.lastname: Kamiya
authors.forename: Sadamitsu
authors.initials: S
authors.lastname: Nishihara
authors.forename: Masahide
authors.initials: M
authors.lastname: Tominaga
mesh_terms: D019047:Phantoms, Imaging; D010781:Photography / Q000295:instrumentation*; D012542:Scattering, Radiation; D014965:X-Rays