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使用Cf旋转方法与水切伦科夫中子探测器检测屏蔽高缩的紧和可运输系统
Kosuke Tanabe1,2, Masao Komeda3, Yosuke Toh3
1Physics Section, National Research Institute of Police Science, 6-3-1, Kashiwanoha, Kashiwa-shi, Chiba, 277-0882, Japan. tanabe@nrips.go.jp.
Scientific reports
|August 13, 2024
概括
一个新的便携式系统可以在现场检测屏蔽的高缩 (HEU). 这种非破坏性测试 (NDA) 方法使用加利福尼亚-252 (Cf) 源和切伦科夫探测器来增强核安全性.
科学领域:
- 核安全和核不扩散.
- 应用物理和仪器仪表.
背景情况:
- 高度缩 (HEU) 构成严重的核安全风险,因为它有可能被滥用.
- 传统的被动非破坏性检测 (NDA) 方法难以检测被等重金属屏蔽的HEU.
研究的目的:
- 开发和演示一个现场检测方法,用于屏蔽的HEU.
- 加强核安全,防止非法物质扩散.
主要方法:
- 使用了一种可携带的非破坏性测试 (NDA) 系统.
- 使用加利福尼亚-252 (Cf) 旋转方法与水切伦科夫中子探测器.
- 使用3.7MBq的252Cf源测量了4.17g的235 (U) .
主要成果:
- 在现场成功检测到屏蔽的HEU.
- 在12分钟的测量期内实现检测.
- 展示了一个具有成本效益的NDA解决方案.
结论:
- 开发的可运输NDA系统为检测屏蔽HEU提供了可行的解决方案.
- 将其整合到边境控制中可以显著改善HEU扩散的预防.
- 提供对核恐怖主义的强有力的威.
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