Related Experiment Video
Updated: Jun 4, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
The optimization study of Bonner sphere in the epi-thermal neutron irradiation field for BNCT
H Ueda1, H Tanaka, A Maruhashi
1Department of Nuclear Engineering, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto, Japan. haruaki@physics.mbox.media.kyoto-u.ac.jp
Abstract:
The optimization study on the Bonner sphere in the epi-thermal neutron irradiation field for BNCT was done for the moderator material, moderator size, and activation foils as a neutron detector in the sphere. The saturated activity for the activation foil was obtained from the calculated response, and the effective energy range for each Bonner sphere was determined from the saturated activity. We can see that boric acid solution moderator is suitable for the spectrum measurement of a epi-thermal neutron irradiation field.
Related Concept Videos
Nuclear Overhauser Enhancement (NOE)
Nuclear Fission
Atomic Nuclei: Nuclear Spin State Population Distribution
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
