Affiliation: | Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki, Gunma 370-12, Japan Nuclear Energy Unit, Ministry of Science, Technology and the Environment, Kompleks PUSPATI, Bangi, 43000, Kajang, Malaysia Gunma Prefecture Forestry Experiment Station, Shintou-mura, Gunma-gun, Gunma 370-35, Japan |