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Report No.

R&D status of nondestructive assay system based on nuclear resonance fluorescence

Shizuma, Toshiyuki; Hajima, Ryoichi; Hayakawa, Takehito; Angell, C.; Seya, Michio

Nondestructive assay (NDA) of nuclear materials is an important technology for nuclear security and safeguard applications. We have proposed an NDA system based on nuclear resonance fluorescence (NRF). In the proposed detection system, an energy-tunable and mono-energetic $$gamma$$-ray source generated by Compton scattering of laser light (laser Compton scattering; LCS) with high-energy electrons is used. The NRF measurement can be more efficient by using a mono-energetic $$gamma$$-ray beam, which has been demonstrated in recent NRF measurements. We have started a research and development program of the LCS $$gamma$$-ray NDA systems, which includes demonstration of LCS $$gamma$$-ray generation from an energy recovery linac (ERL), establishment of detection system, and benchmark of Monte Carlo simulation. The R&D status including recent results on the demonstrations of the LCS photon generation as well as the measurement principles will be reported.



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