优化了用于马探测器校准的双同位素源的生产
Mahdiyeh Mahabadi1, Hassan Ranjbar2, Seyedeh Zahra Islami-Rad1
1Department of Physics, Faculty of Science, University of Qom, Qom, Iran.
Scientific reports
|November 21, 2025
概括
这项研究证明了使用天然欧和MCNPX模拟来进行HPGe探测器校准的欧放射性同位素的经济有效生产. 该方法确保了研究反应堆中可靠和高效的校准源生成.
科学领域:
- 核物理 核物理 核物理
- 放射化学 放射化学是指辐射化学.
- 应用物理 应用物理
背景情况:
- 高纯度 (HPGe) 探测器需要精确的校准才能进行准确的玛射线光谱学.
- 放射性同位素如欧-152 (Eu-152) 和欧-154 (Eu-154) 由于其有利的衰变特性,对检测器校准非常有价值.
研究的目的:
- 通过直接照射天然欧洲来研究Eu-152和Eu-154放射性同位素的产生.
- 为了优化辐射过程使用MCNPX 2.6.0模拟.
- 用实验测量来验证模拟结果,以产生标准校准源.
主要方法:
- 使用了MCNPX 2.6.0代码来模拟天然欧的中子辐射.
- 在特定的中子流条件下,在德黑兰研究反应堆中辐射的天然欧样本.
- 经过冷却期后使用HPGe探测器进行玛光谱,以分析产生的放射性同位素.
主要成果:
- 产生的Eu-152和Eu-154的实验活动与模拟预测密切匹配.
- 使用与标准参考源一致的生成源进行探测器效率校准,确认其性能.
- 这种生产方法在产生放射性标准源方面被证明是高效和可靠的.
结论:
- 模拟和实验的结合方法为生产放射性校准源提供了有效的途径.
- 使用天然欧作为目标是生产标准校准源的富化同位素的经济有效和实用的替代方案.
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