Study on the performance of some non-destructive methods to estimate the uranium enrichment in nuclear materials

Gawad, K. Abd El; Zhang, Zhijian; Song, Yushou; Zahraddeen, Abbati; Hazzaa, M.H.

doi:10.1016/j.rinp.2019.102345

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…Con duct ing such in spec tions with out in ter ruption of the nu clear fa cil i ties while op er at ing can be real ized by ver i fi ca tions of high speed and more ac curacy. Such in spec tion tech niques are sup posed not to in flu ence the quan tity of NM, i. e., non-de struc tive assay (NDA), and this can be per formed by the use of detec tion tech niques based on gamma-ray spec trom e try for char ac ter iza tion and mea sure ment of NM [1].…”

Section: Introductionmentioning

confidence: 99%

Optimization of HPGe detector response using fast and reliable method

et al. 2020

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Safeguards system with high effectiveness and efficiency must comprise a set of measurements with capabilities satisfactory for the verification of nuclear materials. In this paper, we present key parameter measurements of detector modeling in a commercial n-type low energy germanium detector of a planar crystal with a relative efficiency of nearly 15 %. The detector optimization will hold a significant function in measuring nuclear materials for safeguards application. Standard nuclear materials with diverse enrichment (depleted and low enriched) of uranium and point-like sources (137Cs, 60Co) and mixed radioactive source for Eu isotopes (152Eu, 154Eu, and 155Eu) were benefited to explore the energy resolution and detector efficiency. The energy resolution is measured over a wide range of rise time and flattop. In addition to the experimental work, the Monte Carlo simulation code is used for modeling the setup configuration to obtain the absolute efficiency at different energies. A fast and reliable method was applied in detector efficiency measurements. The data are discussed and interpreted.

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Section: Introductionmentioning

confidence: 99%

Optimization of HPGe detector response using fast and reliable method

et al. 2020

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Nondestructive determination of isotopic abundance using multi-energy nuclear resonance fluorescence driven by laser Compton scattering source

Omer,

Shizuma,

Hajima

et al. 2024

Journal of Applied Physics

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We report on the quantitative nondestructive analysis of the natural isotopic abundances of hafnium and tungsten elements using nuclear resonance fluorescence. Metallic samples of hafnium and tungsten were irradiated to six quasi-monochromatic γ-ray beams generated by laser Compton scattering in the energy range of 2.4–3.2 MeV. Multiple nuclei were simultaneously excited at each of the six γ-ray beam energies. A high-purity germanium detector array detected deexcitations of the nuclei. In total, 51 transitions were unprecedentedly employed to estimate the isotopic abundances of heavy elements nondestructively. The estimated abundances of three hafnium isotopes and three tungsten isotopes are consistent with standard known natural abundances within the experimental uncertainties. The deviation from the standard values ranges from 0.18% to 1.36%.

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Study on the performance of some non-destructive methods to estimate the uranium enrichment in nuclear materials

Cited by 2 publications

References 30 publications

Optimization of HPGe detector response using fast and reliable method

Optimization of HPGe detector response using fast and reliable method

Nondestructive determination of isotopic abundance using multi-energy nuclear resonance fluorescence driven by laser Compton scattering source

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