Radiation Safety and Control


  • TAKAHASHI, Sentaro e-mail: sentaro<atmark>

Associate Professors

  • TAKAHASHI, Tomoyuki e-mail: tomoyuki<atmark>
  • KINASHI, Yuko e-mail: kinashi<atmark>

Assistant Professors

  • YASHIMA, Hiroshi e-mail: yashima<atmark>
  • NAKAMURA, Hidehito e-mail: hidehito<atmark>

* replace <atmark> with @rri.kyoto-u.ac.jp

Researches on the ‘Radiation Safety Control’ are essential and important for the safety of nuclear industry workers and surrounding public. In this laboratory, following subjects are carried out with collaboration of multi-disciplinary researchers including technology, biology, environmental science, and medicine.

1)Research on radiation safety in and surrounding the nuclear plant:
Advanced radiation safety management systems and control procedures are studied using experiences with KUR and KUCA. Additionally, the level and movement of radon gas is also investigated as a model.
2) Behavior and kinetic of radio-nuclides originating from nuclear waste in soil and plants:
With relation to the disposal of nuclear waste, there is anxiety regarding the accidental release of radionuclide into the environment. It is necessary to accumulate fundamental parameters for evaluating the movement of radionuclide and for assessing the adverse effects on the human health. We are focusing so far on the modeling of transfer of radio-carbon from soil to plant.
3) Measurement and control of induced radioactivity in nuclear plants and accelerators:
  The induced radioactivity is an important issue for radiation protection, but the detail data has not been sufficient yet. Here, the radionuclides induced by neutron and charged particles were measured in a few nuclear and accelerator facilities and the cross-sections were obtained to evaluate residual activities.
4) Health effects and risks of radiation and radioactive materials:
The health effects of radiation, especially neutron for boron neutron capture therapy, were investigated in in-vitro as well as in vivo systems from a view point of radiation safety and protection. In addition, the combined effects of radiation with those of environmental toxicants are also studied.
2013-rsc-1 2013-rsc-2

Fig. 1 Scintillation light from plastic materials with excitation by UV light and ionizing radiation.

Fig. 2 Focus formation of 53BP1, repair protein of DNA double strand breaks, in the Chinese hamster ovary (CHO) cells.