荧光x射线辐射的能谱测量

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI:10.1109/ICEMI46757.2019.9101697

Guo Siming, Wu Jinjie, Zhang Jian, Li Mengshi, Hou Dongjie, Wang Ji, Zhai Yudan

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引用次数: 1

摘要

建立了一种荧光x射线辐射装置。该装置主要由x射线机、荧光辐射器、二次滤光片和限束隔膜组成。它可以产生100 keV以下8个能量点的单色x射线。通量约为106光子/秒。利用标准放射源对用于x射线能谱测量的HPGe探测器进行了标定，得到了能量与通道的关系。利用蒙特卡罗仿真软件对探测器检测效率曲线进行仿真。利用HPGe探测器测量了荧光辐射装置的一次和二次辐射能谱，得到了该辐射装置在不同能量下的通量和能量分辨率。

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Energy spectra measurement of fluorescence X-rays radiation

A fluorescence X-rays radiation device is established. The device is mainly composed of X-rays machine, fluorescent radiator, secondary filter and beam-limiting diaphragm. It can generate monochromatic X-rays with 8 energy points below 100 keV. The flux is about 106 photon/s. An HPGe detector for X-rays energy spectrum measurement were calibrated using standard radioactive sources, and the relationship between energy and channel was obtained. The Monte Carlo simulation software was used to simulate the detector detection efficiency curve. The primary and secondary radiant energy spectra of the fluorescent radiation device were measured using the HPGe detector, and the fluence rate and energy resolution of the radiation device at different energies were obtained.

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来源期刊

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)

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