漂移探测器用于测量和重建β光谱
Andrea Nava1,2, Leonardo Bernardini3,4, Matteo Biassoni2
1Dipartimento di Fisica G. Occhialini, Università Degli Studi di Milano-Bicocca, 20126 Milano, Italy.
Sensors (Basel, Switzerland)
|January 8, 2025
概括
在ASPECT-BET项目中,开发了一种新漂移探测器光谱仪,用于精确测量β衰变. 模拟和实验验证证证实其适用于分析禁止β光谱的适用性.
科学领域:
- 核物理 核物理 核物理
- 粒子物理学 粒子物理学
- 频谱学是一种光谱学.
背景情况:
- 准确测量被禁止的β光谱是具有挑战性的.
- 漂移探测器 (SDD) 为β光谱学提供了潜力.
- 了解探测器响应对于光谱重建至关重要.
研究的目的:
- 开发一种用于β衰变研究的新型光谱仪 (ASPECT-BET).
- 精确测量10 keV-1 MeV范围内的禁止β光谱.
- 验证模拟技术用于检测器响应.
主要方法:
- 使用漂移探测器 (SDD) 和可选的否决系统.
- 采用GEANT4模拟用于低能电子相互作用.
- 使用定制电子枪和109Cd/14C源的验证模拟.
主要成果:
- GEANT4模拟准确地重建了109Cd源的电子光谱.
- 在真空和空气条件下验证了性能.
- 该系统成功地分析了14C源的允许β光谱.
结论:
- 开发的基于SDD的光谱仪适合ASPECT-BET应用.
- GEANT4模拟为确定光谱仪响应提供了一种可靠的方法.
- 这种技术可以精确测量禁止的β光谱.
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