| abstract |
Isotope identification imaging of nuclear fuel material or explosives concealed in a drum or container in which nuclear reactor fuel or radioactive waste are sealed is realized while ensuring high precision, high reliability, and safety. A sample 31 is irradiated with laser Compton photon beams 21 and 22 generated by a collision between an electron beam 12 and polarized laser light 16 and 20 . An isotope in the sample is identified using nuclear resonance fluorescence, and the spatial distribution thereof is imaged. In so doing, a nuclear level of an isotope whose emission direction of nuclear resonance fluorescence is dependent on the planes of polarization of the incident LCS photon beams is used. |