照射食品安全性検証の歴史(3) : 誘導放射能の確認とその安全性 Natick の研究から A history of study on safety of irradiated foods (3) : Induced radioactivity in irradiated foods
Food irradiation can induce a small amount of radioactivity in the foods. The principal mechanisms of the nuclear reactions are (n, γ), (γ, n), (γ, γ'). The resulting nuclear products were found in irradiated foods were Na-24, P-32, Ca-45, C-11, N-13, and O-15 in the food irradiated by 24 MeV electron beam. The total radioactivity is less than 1/1000 of those of K-40 in the case of electron beams below 10 MeV or X rays below 5 MeV. Package materials affected neutron flux in the foods and enhanced the radioactivity. Electron beam machine produces neutrons and increases the flux in food. IAEA recommend to reduce neutron production in the facility. The safety of irradiated food in the radioactivity field still needs more progress.
- 食品照射 = Food irradiation, Japan
食品照射 = Food irradiation, Japan 41(1), 32-48, 2006-09-30