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为便携式TDCR计数器开发具有α/β区分的灵活和低成本的数字脉冲处理模块
Yifan Tian1, Zhijie Yang2, Hao Yang2
1China University of Geosciences, Beijing, 100083, China; National Institute of Metrology, Beijing, 100029, China.
概括
一个新的数字脉冲处理 (DPP) 模块为便携式计数器提供灵活,低成本的α/β区分. 这项创新支持核和医疗领域的现场放射性核素测量.
科学领域:
- 核仪器仪表 核仪器仪表 核仪器仪表 核仪器仪表
- 辐射检测和测量 辐射检测和测量
背景情况:
- 对现场放射性核素活动测量和标准化的需求日益增长.
- 需要在核能和医疗应用中寻找具有成本效益和灵活的解决方案.
研究的目的:
- 开发一个低成本的数字脉冲处理 (DPP) 模块,具有α/β区分.
- 在便携式三倍到双倍巧合比 (TDCR) 计数器中集成实时脉冲分析的巧合算法.
主要方法:
- 基于FPGA的巧合算法用于脉冲特征提取.
- 将事件列表传输到PC,以便灵活选择感兴趣的地区.
- 使用混合的241Am和90Sr/90Y源进行验证,并与各种低能β发射器的DT5730S模块进行比较.
主要成果:
- 证明了成功的α/β区分.
- 通过专用软件实现灵活的光谱显示和分析.
- 为更广泛的现场应用实现了成本优化.
结论:
- 开发的DPP模块为现场放射性核素测量提供了可行的,具有成本效益的解决方案.
- 该模块的灵活性和区分能力满足核和医疗应用的需求.
- 在放射性核素标准化和监测方面的进一步应用得到了促进.
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