检索结果-南通市图书馆

A prototype segmented planar high purity germanium detector using wraparound lithium diffusion electrode and amorphous germanium blocking contact

引用

Radiation Detection Technology and Methods 2022年第4期6卷 433-438页

作者： Mingxin Yang Yulan Li Zhi Zeng Yang Tian Tao Xue Ming Zeng Weiyou Tang Jianping Chang Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Particle&Radiation Imaging(Tsinghua University) Ministry of EducationBeijing 100084China

Purpose Segmented high purity germanium(HPGe)detectors have been used in many experiments to measure the position and energy deposition of gamma ray ***ﬁcant efforts have been made to optimize the design and simplify the fabrication *** germanium(aGe)coating is a desirable method to realize blocking contact and facilitate the *** In this study,a prototype segmented planar HPGe detector is fabricated using a wraparound lithium diffusion electrode for bias voltage applying and reliable mechanical mounting.A low leakage current design is realized based on conventional chemical polishing and aGe blocking.A guard ring(GR)is used to protect the metal strip electrodes within it from the surface leakage *** GR and strip electrodes are coated onto the aGe layer.A multichannel charge sensitive preampliﬁer is connected to the strip electrodes,and the signal waveforms are digitized using a multichannel 100 MS/s analog-to-digital *** and conclusion The charge collection time and amplitude are *** average energy resolution of 2 keV(full width at half maximum,FWHM)is realized at 662 *** collection is simulated via a Monte Carlo *** spatial resolution is also estimated using the *** front-end response and measured noise level are *** to the simulation results,sub-millimeter(FWHM at 122 keV)resolution can be achieved at the current noise level.

关键词： Segmented HPGe Amorphous germanium guard ring Charge collection simulation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Performance of the CAT-TPC based on two-dimensional readout strips

引用

Nuclear Science and Techniques 2021年第8期32卷 78-84页

作者： Li-Sheng Yang Jin-Yan Xu Qi-Te Li Bin-Fei Ji Zi-Wei Cai Jia-Xing Han Shi-Wei Bai Yan-Lin Ye Xiao-Fei Yang Chen-Gui Lu Ning-Tao Zhang Xiao-Dong Tang Jian Gao Hong-Yi Wu Zhong Liu School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

A gas detector 140×140×140 mm^(3)in size,termed the compact active target time projection chamber(CAT-TPC),was developed in this study to measure resonant scattering associated with cluster structures in unstable *** CAT-TPC consists of an electronic field cage,double-thick gas-electron-multiplier foils,a general-purpose digital data acquisition system,and a newly developed two-dimensional strip-readout *** CAT-TPC was operated using a^(4)He(96%)+CO_(2)(4%)gas mixture at 400 *** working gas also serves as an active target for tracking charged *** overall performance of the CAT-TPC was evaluated using a collimated a-particle source.A time resolution of less than 20 ns and a position resolution of less than 0.2 mm were observed along the electron drift *** images of incident trajectories and scattering events can be clearly reconstructed under an angular resolution of approximately 0.45 degree.

关键词： AT-TPC Readout strips guard ring Three-dimensional image

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：