$\gamma$ - ray production and its applications of transmutation of nuclear waste

(MO-3-18)

K.Imasaki, M.Asakawa*, S.Nakai*, N.Ohigashi**, Y.Tunawaki***, A.Mhori and C.Yamanaka  

Institute for Laser Technology, *Institute of Free Electron Laser, Osaka University, **Kansai University

Generation of high brightness $\gamma$ ray and its application to transmutation of nuclear waste is discussed. The recent development of laser and optical technology allows us to storage the photons in a cavity. The interaction of electron beam with the storage photon field makes an enhancement of generation of high brightness $\gamma$ ray. Such $\gamma$ ray with high efficiency of generation is expected to use a nuclear transmutation which has been studied . The result shows this methods promising.

We performed a small scale experiment with the low energy electron beam and accumulated photon in a photon storage cavity. The results corresponded quite well to the predicted one from storage rate and electron beam energy. The extended experiment is going on.