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A 3D-PSF Space Size Selection Method Based on Inflection Point

Chinese Journal of Electronics 2017年第1期26卷 160-165页

作者： YANG Fengjuan CHEN Hua CAI Yi LIANG Riliu HE Shuangyan School of Computer and Electronics Information Guangxi University

In the three-dimensional microscopic biological image restoration processing of digital confocal microscopy, the selection of three-Dimensional Point spread function(3D-PSF) space size determines the restoration effect and restoration time. Based on 3D-PSF double funnelshaped structure and analyzing the relationship of 3DPSF space size to the image restoration effect and restoration time, it proposed the comprehensive image restoration evaluation criteria based on restoration efficiency,and also proposed the 3D-PSF selection method based on restoration efficiency curve inflection point. Three groups of 3D-PSF with different layer distances were used for image restoration experiments, the relationship between the3D-PSF space sizes of different diameter and the image restoration effect and restoration time was built, and the restoration efficiency curve was obtained. Based on the curve inflection point, the selection of optional minimum space 3D-PSF and 3D-PSF was determined. Experimental results showed the method has good feasibility.

关键词： Microscopic image Three-Dimensional Point spread function(3D-PSF) Selection method restoration efficiency Inflection point

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Annealing restoration of HPGe detector

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Radiation Detection Technology and Methods 2020年第1期4卷 106-109页

作者： Jianyong Zhang Xiaohu Mo Xiao Cai Institute of High Energy Physics CASBeijing 100049China University of Chinese Academy of Sciences CASBeijing 100049China

Introduction HPGe detector is used widely,its property is affected by *** to the germanium crystal is a good approach to recover the *** To raise the temperature of germanium crystal to recover the resolution for the HPGe *** A special copper ingot is designed and manufactured to increase the heating *** temperature controlled power supplies are used to heat the germanium crystal and keep the temperature for cooling *** The experiment results indicate that raising temperature to 70℃for five days,the restoration efficiency is better than 90%.

关键词： Annealing HPGe detector restoration efficiency

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Study of Annealing the Damaged HPGe Detector

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World Journal of Nuclear Science and Technology 2021年第2期11卷 100-108页

作者： Jianyong Zhang Xiaohu Mo Xiao Cai Institute of High Energy Physics CAS Beijing China University of Chinese Academy of Sciences Beijing China

High purity germanium detectors have important applications in many fields. Detector’s performance deteriorated significantly due to radiation of neutron. The annealing of damaged HPGe detector is expounded in this monograph. The experiment results indicate that raising the temperature to 70°C for five days, the restoration efficiency can reach 90%.

关键词： Annealing HPGe Detector restoration efficiency

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