Nuclear resonance fluorescence experiment with laser-compton gamma-ray beam for isotope detection

A nuclear material detection is crucial in these days, because we do not have any effective method to detect it destructively. Especially for the hidden nuclear material in a container at the sea port, an existing X-ray detection system could not identify the isotopes. We propose a novel nondestructive detection method by using Nuclear Resonance Fluorescence (NRF) excited with a quasi-monochromatic gamma-ray which is generated by laser Compton backscattering. Brief introduction of the laser Compton backscattering gamma-ray and the NRF are described. The NRF experiments in our research group are also introduced. Finally, the proposed detection system for a hidden nuclear material in a container will be described in this paper. (author)