title: Application of an ultraminiature thermal neutron monitor for irradiation field study of accelerator-based neutron capture therapy.
abstract: Phantom experiments to evaluate thermal neutron flux distribution were performed using the Scintillator with Optical Fiber (SOF) detector, which was developed as a thermal neutron monitor during boron neutron capture therapy (BNCT) irradiation. Compared with the gold wire activation method and Monte Carlo N-particle (MCNP) calculations, it was confirmed that the SOF detector is capable of measuring thermal neutron flux as low as 10(5) n/cm(2)/s with sufficient accuracy. The SOF detector will be useful for phantom experiments with BNCT neutron fields from low-current accelerator-based neutron sources.
authors.affiliation: Department of Medical Physics and Engineering, Graduate School of Medicine, Hokkaido University, N-15 W-7 Kita-ku, Sapporo Hokkaido, 060-8638, Japan masayori@med.hokudai.ac.jp.
authors.forename: Masayori
authors.initials: M
authors.lastname: Ishikawa
authors.affiliation: Center of Medical Education, Sapporo Medical University, S-1 W-16 Chuo-ku, Sapporo Hokkaido, 060-8543, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Tanaka
authors.affiliation: Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan.
authors.forename: Satrou
authors.initials: S
authors.lastname: Endo
authors.affiliation: Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi Minami-ku, Hiroshima Hiroshima 734-8553, Japan.
authors.forename: Masaharu
authors.initials: M
authors.lastname: Hoshi
mesh_terms: D016754:Boron Neutron Capture Therapy / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008904:Miniaturization; D010315:Particle Accelerators / Q000295:instrumentation*; D011874:Radiometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013817:Thermography / Q000295:instrumentation*
keywords: SOF detector; neutron capture therapy; thermal neutron monitor