延迟线阳极紫外光子探测器研究

发布时间：2018-03-23 23:10

本文选题：延迟线阳极　切入点：空间分辨率　出处：《光谱学与光谱分析》2017年10期

【摘要】：基于微通道板(MCP)的延迟线阳极探测器利用信号到达延迟线两端的时间差得到入射光子的位置信息,具有高空间分辨率、高计数率的特点,被广泛应用于紫外光谱成像系统中。分析了延迟线阳极紫外光子探测器的工作原理,提出一种新型二维延迟线阳极,仅由阳极表面收集经MCP倍增后的电子云团,上层延迟线直接收集电子,下层延迟线通过置于顶层的焊盘收集电子。该阳极采用印刷电路板(PCB)加工制作,大大简化了制作工艺。测试结果表明,阳极探测器空间分辨率FWHM优于92μm,成像非线性小于100μm。实验结果证明了该延迟线阳极探测器进行紫外光子成像的可行性,为研制远紫外波段成像光谱仪提供了理论基础及实验指导。
[Abstract]:The delay line anode detector based on microchannel plate MCP) obtains the position information of incident photon by using the time difference between the two ends of the delay line, which has the characteristics of high spatial resolution and high counting rate. It is widely used in the ultraviolet spectrum imaging system. The working principle of the delay line anode ultraviolet photodetector is analyzed. A new two-dimensional delay line anode is proposed. The electronic cloud which has been multiplied by MCP is collected only from the anode surface. The upper delay line collects electrons directly, and the lower delay line collects electrons through the pad placed on the top floor. The anode is fabricated with printed circuit board (PCB), which greatly simplifies the fabrication process. The test results show that, The spatial resolution FWHM of the anode detector is better than 92 渭 m and the imaging nonlinearity is less than 100 渭 m. The experimental results prove the feasibility of the ultraviolet photonic imaging of the delay line anode detector, which provides a theoretical basis and experimental guidance for the development of far-ultraviolet imaging spectrometer.
【作者单位】：瞬态光学与光子技术国家重点实验室中国科学院西安光学精密机械研究所;中国科学院大学;中国科学院超快诊断技术重点实验室中国科学院西安光学精密机械研究所;
【基金】：国家自然科学基金项目(11305259,61690222)资助
【分类号】：TN23

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