High brightness γ ray and its application for nuclear transmutation

In this article, a 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 tay with high efficiency of generation is expected to use interesting applications as nuclear transmutation which has been studied at ILT. The result shows this methods promising. We performed a small scale experiment with the low energy electron beam and accumulated photon in a super cavity. This results corresponded quite well to the predicted one from cavity storage rate and electron beam energy.