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- Title
基于逆康普顿散射源核废物成像技术 的研究进展及仿真模拟.
- Authors
丁浩; 林锦; 张鸿泽; 杜应超; 唐传祥
- Abstract
The high-level radioactive waste (HLW) is characterized by high concentration of radionuclides, high toxicity, continuous decay heat release, long decay time and the final disposal of HLW is a great challenge. Especially, accurate detection and assessment of HLW is important for the safety of deep geological disposal. Nuclear Resonance Fluorescence (NRF) method combined with three dimensional transimision imaging has great potential for nuclear waste assay and has been developed gradually. Compact inverse compton scattering X/γ rays source is the key for the NRF method, which could satisfy the requirement of inspection accuracy at engineering scale. This paper introduces the development and application of domestic advanced compton scattering sources. Using a very compact inverse compton scattering gamma-ray source to generate X/γ rays, combined with Monte Carlo simulation, the response mechanism of radioactive waste, container and bentonite were detected and mapped. The result could be used to improve the multifield coupling simulation to predict the release mechanism of radionuclides and to assess the reliability of the multi-barrier system. It could also offer effective technical support for the radionuclides’ identification, characterisation and safety assessment within HLW.
- Subjects
INVERSE Compton scattering; COMPTON scattering; RADIOACTIVE wastes; ENGINEERING inspection; GAMMA-ray scattering; MONTE Carlo method; RADIOACTIVE waste disposal; RADIOISOTOPES
- Publication
World Nuclear Geoscience, 2023, Vol 40, p623
- ISSN
1672-0636
- Publication type
Article
- DOI
10.3969/j.issn.1672-0636.2023.S1.020