• Research Divisions
• Division of Nuclear Engineering Science
• Division of Quantum Beam Material Science
• Division of Radiation Life Science
• Research Center for Safe Nuclear System
• Particle Radiation Oncology Research Center
• Particle Radiation Oncology
• Particle Radiation Medical Physics

Particle Radiation Medical Physics

Professor

• TANAKA, Hiroki e-mail: tanaka.hiroki.3e<atmark>kyoto-u.ac.jp

Associate Professors

• SAKURAI, Yoshinori e-mail: sakurai.yoshinori.8n<atmark>kyoto-u.ac.jp

Assistant Professor

• Takata, Takushi e-mail: takata.takushi.6x<atmark>kyoto-u.ac.jp
• Matsubayashi, Nishiki e-mail:matsubayashi.nishiki.3d<atmark>kyoto-u.ac.jp

* replace <atmark> with ＠

Medical physics is the general term for the physics and technology which are supporting medicine, especially radiation therapy and particle therapy. As it covers many different fields, the important subjects are “promotion for the advance of radiation therapy” and “quality assurance for radiation therapy”. Our group is focusing on “boron neutron capture therapy (BNCT)”, which is one kind of particle therapies. We are studying mainly about the following subjects for the advance of BNCT, in corporation with Particle Radiation Oncology Research Center.

1. We are studying about the advance of the BNCT irradiation systems, based on the clinical experience at the Heavy Water Neutron Irradiation Facility of KUR. We are also performing the design studies for accelerator-based irradiation system, which is superior to the reactor-based irradiation system in availability.
2. We are developing the separative estimation methods for four components such as thermal neutron (<0.5eV), epi-thermal neutron (0.5 eV – 10 keV), fast neutron (>10 keV) and gamma ray. Our final goal is the completion of the real-time system for two-dimensional and/or three-dimensional dose estimation under BNCT.
3. The recent wider application of BNCT uplifts the recognition degree of this therapy, and then BNCT is possible to become a universal therapy. On these backgrounds, we are establishing the quality assurance for BNCT, such as the standard dosimetry for the irradiation field, the dose estimations for pre- and post-treatment, the external and internal exposure estimation for patient, etc.

KUR Heavy Water Neutron Irradiation Facility	Outline of the accelerator-based irradiation system
Dose estimation joint-system	Multi ionization chamber system