| 一种基于石墨烯电场效应的软X射线探测器简 |
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| 引用本文： | 陈冠宇,申钧,苏云,汪岳峰.一种基于石墨烯电场效应的软X射线探测器简[J].半导体光电,2018,39(1):21-25,31. |
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| 作者姓名： | 陈冠宇 申钧 苏云 汪岳峰 |
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| 作者单位： | 陆军工程大学石家庄校区电子与光学工程系,石家庄,050003;中国科学院重庆绿色智能技术研究院微纳制造与系统集成研究中心,重庆,400714;北京空间机电研究所,北京,100076 |
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| 摘 要： | 针对脉冲星导航对软X射线探测的实际要求,研究分析了一种基于石墨烯电场效应的软X射线探测器的性能.通过理论计算,并利用COMSOL Multiphysics有限元仿真软件,给出了探测器时间分辨率和能量分辨率的估值公式.在5.9 keV软X射线入射硅吸收层的情况下,时间分辨率的理论值可达7.2ns,能量分辨率的理论值约为90 eV(1.5％).结果表明,该探测器能够初步满足脉冲星软X射线的探测需求.
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| 关 键 词： | 软X射线 探测器 有限元仿真 石墨烯 电场效应 脉冲星导航 |
| 收稿时间： | 2017/8/21 0:00:00 |
A Soft X-ray Detector Based on Electric Field Effect of Graphene |
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| CHEN Guanyu,SHEN Jun,SU Yun,WANG Yuefeng.A Soft X-ray Detector Based on Electric Field Effect of Graphene[J].Semiconductor Optoelectronics,2018,39(1):21-25,31. |
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| Authors: | CHEN Guanyu SHEN Jun SU Yun WANG Yuefeng |
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| Abstract: | In view of the requirements of X-ray detection in pulsar-based navigation, the performance of a soft X-ray detector based on electric field effect of graphene is studied. The formula of time resolution and energy resolution of the detector is given by theoretical calculation and COMSOL Multiphysics simulation software. When the soft X-ray of 5.9keV is incident on the silicon absorption layer, the theoretical value of the time resolution is about 7.2ns and the theoretical value of the energy resolution is about 90eV (1.5%). The results show that the detector can meet the basic requirement of X-ray detection in pulsar-based navigation. |
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| Keywords: | soft X-ray detector finite element simulation graphene electric field effect pulsar-based navigation |
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