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研究一种方法来纠正TDCR测量的意外巧合

Karsten Kossert¹, Marcell Péter Takács¹

¹Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

|September 14, 2025

概括

使用Dutsov等人对TDCR测量的随机巧合进行校正. (2020) 方法提高了数据的一致性. 这种校正对于准确的不确定性评估至关重要,尤其是在更长的巧合解决时间的情况下.

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.
计量学计量学计量学

背景情况:

液体闪 (LS) 计数是一种常见的放射性测量技术.
随机巧合可能会影响TDCR测量的准确性.
杜佐夫等人开发了一种新的校正方法. (2020) 需要彻底验证.

研究的目的:

为了实验验证Dutsov等人. (2020) 在TDCR.中纠正随机巧合的方法.
评估此校正对测量一致性和不确定性评估的影响.
为了确定各种实验条件的校正的有效性.

主要方法:

使用各种液体闪样本进行了广泛的实验研究.
包括多个放射性核化物 (例如,3H,32Si/32P,55Fe,89Sr,151Sm,238Pu,241Am) 和背景样本.
使用快速数字化器和列表模式分析获取数据,可变的巧合解决时间 (从10 ns到1500 ns).

主要成果:

应用随机巧合校正始终提高了所有测试样品和条件的测量一致性.
在较长的巧合解决时间下,这种改善更为明显.
校正被证明对于准确的不确定性评估至关重要.

结论:

杜佐夫和其他人. (2020) 方法有效地纠正TDCR测量的随机巧合.
校正提高了放射性测量的可靠性和准确性.
在TDCR中准确的不确定性评估需要应用这种随机巧合校正.

关键词:

偶然的巧合偶然的巧合巧合的时间解决时间.液体闪计数计算液体闪计数放射性核化物计量学放射性核化物计量在TDCR计数中.

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