液体有机闪烁体的固有分辨率

IF 1.3 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Journal of Instrumentation Pub Date : 2023-10-01 DOI:10.1088/1748-0221/18/10/p10026

O. Smirnov

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引用次数: 0

摘要

闪烁体中光子产生的波动可以影响闪烁探测器的总能量分辨率。这种贡献被称为内在分辨率(IR)，是限制基于液体有机闪烁体(LSs)的探测器总能量分辨率的因素之一。在LSs中，很少有可用的红外实验测量，其潜在的物理特性也没有完全被理解。我们提出了一种对红外光谱的现象学描述，并使用表征红外光谱的单一通用参数对现有数据进行了系统化。我们发现，该模型内的所有实验数据都表明，在1-MeV能量释放时，由于红外的影响，能量分辨率存在额外的模糊，其典型值为≃2%。该模型可用于模拟红外对ls型探测器的影响。

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Note on intrinsic resolution in liquid organic scintillators

Abstract Fluctuations in photon production in scintillator could contribute to the total energy resolution of a scintillation detector. This contribution, called intrinsic resolution (IR), is one of the factors limiting the total energy resolution in detectors based on liquid organic scintillators (LSs). There are very few experimental measurements of the IR in LSs available, and the underlying physics is not completely understood. We propose a phenomenological description of IR of LSs and systematize the data available using a single universal parameter that characterizes IR. We show that all experimental data within the model demonstrate the presence of extra smearing of energy resolution due to IR with a typical value of ≃ 2% at 1-MeV energy release. The model can be used to simulate the effect of IR in LS-based detectors.

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来源期刊

Journal of Instrumentation 工程技术-仪器仪表

CiteScore

2.40

自引率

15.40%

发文量

827

审稿时长

7.5 months

期刊介绍： Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include. -Accelerators: concepts, modelling, simulations and sources- Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons- Detector physics: concepts, processes, methods, modelling and simulations- Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics- Instrumentation and methods for plasma research- Methods and apparatus for astronomy and astrophysics- Detectors, methods and apparatus for biomedical applications, life sciences and material research- Instrumentation and techniques for medical imaging, diagnostics and therapy- Instrumentation and techniques for dosimetry, monitoring and radiation damage- Detectors, instrumentation and methods for non-destructive tests (NDT)- Detector readout concepts, electronics and data acquisition methods- Algorithms, software and data reduction methods- Materials and associated technologies, etc.- Engineering and technical issues. JINST also includes a section dedicated to technical reports and instrumentation theses.