检索结果-南通市图书馆

Photon energy response optimization using few-channel spectroscopy dose method for Si-PIN photodetector applied in personal dose equivalent measurements

引用

Nuclear Science and Techniques 2020年第4期31卷 37-46页

作者： Ping Huang Shu-Qiong Li Run-Dong Yang Yun-Tian Sun Yong Yang Wu Gao National Institute of Measurement and Testing Technology Chengdu 610021China Sichuan Radiation Technology Co. LtdChengdu 610021China Institute of Microelectronics School of Computer S&TNorthwestern Polytechnical UniversityXi’an 710072China

Si-PIN photodetectors having features such as low cost,small size,low weight,low voltage,and low power consumption are widely used as radiation detectors in electronic personal dosimeters(EPDs).The technical parameters of EPDs based on the Si-PIN photodetectors include photon energy response(PER),angular response,inherent error,and dose rate *** them,PER is a key parameter for evaluation of EPD measurement *** present,owing to the limitations of volume,power consumption,and EPD cost,the PER is usually corrected by a combination of single-channel counting techniques and filtering material ***,the above-mentioned methods have problems such as poor PER and low measurement *** solve such problems,in this study,a 1024-channel spectrometry system using a Si-PIN photodetector was developed and fullspectrum measurement in the reference radiation fields was conducted for radiation *** measurement results using the few-channel spectroscopy dose method showed that the PER could be controlled within±14%and±2%under the conditions of two and three energy intervals,respectively,with different channel *** PER measured at 0°angle of radiation incidence meets the-29%to+67%requirements of IEC 61526:***,the channel number and counts-to-dose conversion factors formed in the experiment can be integrated into an EPD.

关键词： Electronic personal dosimeter Si-PIN photodetector Personal dose equivalent Photon energy response few-channel spectroscopy dose method

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

A novel SSA-CCA framework for muscle artifact removal from ambulatory EEG

引用

Virtual Reality & Intelligent Hardware 2022年第1期4卷 1-21页

作者： Yuheng FENG Qingze LIU Aiping LIU Ruobing QIAN Xun CHEN School of Information Science and Technology University of Science and Technology of ChinaHefei 230026China Epilepsy Center Department of NeurosurgeryThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001China

Background Electroencephalography(EEG)has gained popularity in various types of biomedical applications as a signal source that can be easily acquired and conveniently ***,owing to a complex scalp electrical environment,EEG is often polluted by diverse artifacts,with electromyography artifacts being the most difficult to *** particular,for ambulatory EEG devices with a restricted number of channels,dealing with muscle artifacts is a *** In this study,we propose a simple but effective novel scheme that combines singular spectrum analysis(SSA)and canonical correlation analysis(CCA)algorithms for single-channel problems and then extend it to a few channel case by adding additional combining and dividing operations to *** We evaluated our proposed framework on both semi-simulated and real-life data and compared it with some state-of-the art *** results demonstrate this novel framework's superior performance in both single-channel and few-channel *** This promising approach,based on its effectiveness and low time cost,is suitable for real-world biomedical signal processing applications.

关键词： EEG Single-channel few-channel EMGartifacts SSA CCA

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：