|
| 基于可移动平台的中子/伽马混合场的源定位测量 |
| Neutron/Gamma Mixed Field Source Localization and Measurement Based on A Mobile Platform |
| |
| DOI： |
| 中文关键词: CLYC闪烁体 中子/伽马双射线测量 放射源定位 路线优化 |
| 英文关键词: CLYC scintillator Neutron/γ dual radiation measurement Radioactive source localization Route optimization |
| 基金项目:国家自然科学基金资助项目（42574242）；四川省生态环境保护科技计划基金资助项目（2023HB42）；四川省自然科学基金资助项目（2025ZNSFSC0080） |
|
| 摘要点击次数: 99 |
| 全文下载次数: 66 |
| 中文摘要: |
| 将Cs2LiYCl6：Ce3+（CLYC）闪烁体的中子/伽马双射线测量模块搭载于智能移动小车，实现伽马和中子辐射场的远程同步测绘，通过试验考察其在混合辐射场中对放射源识别与定位的效果。试验表明：微型探测模块尺寸4 cm×4 cm×6 cm，质量100g，对137Cs源在662 keV特征峰的能量分辨率为9%，中子/伽马甄别因子达16；该系统对37×105 Bq的60Co放射源完成了2 m×2 m区域的辐射强度测绘与放射源位置识别；在252Cf和137Cs搭建的3 m×3 m区域混合辐射场中，利用绘制的伽马与中子的辐射地图可实现中子、伽马源的同步测量；同等测量时间，相比方形栅格路线，智能车移动的栅格路线优化后定位精度提升20%。 |
| 英文摘要: |
| A compact neutron/γ dual radiation detection module based on a Cs2LiYCl6：Ce3+ （CLYC） scintillator was integrated into an intelligent mobile robot for remote and simultaneous mapping of gamma ray and neutron radiation fields.Its source identification and localization performance in a mixed radiation field was experimentally evaluated.The detector module measured approximately 4 cm×4 cm×6 cm and weighed 100 g， with a gamma ray energy resolution of 9% at the 662 keV characteristic peak of 137Cs and a neutron/γ discrimination figure of merit of 16.The system successfully mapped the radiation intensity over a 2 m×2 m radiation field and localized a 37×105 Bq 60Co source.In a 3 m×3 m mixed field established using 252Cf and 137Cs sources， the generated γ and neutron radiation maps 〖GK!87mm〗enabled simultaneous measurement of the neutron and gamma ray sources. For the same measurement time， the optimized grid route used by the intelligent mobile robot improved localization accuracy by 20% compared with the square grid route. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
