基于LabVIEW的高能质子束流密度分布测试系统

详细信息    查看全文 | 推荐本文 |

英文篇名：A Measurement System of the High Energy Proton Beam Current Density Based on LabVIEW 作者：伍越 ; 陈卫 ; 刘进博 ; 罗杰 ; 李泽禹 ; 朱涛 英文作者：Wu Yue;Chen Wei;Liu Jinbo;Luo Jie;Li Zeyu;Zhu Tao;China Aerodynamic Research and Development Center; 关键词：高能质子束 ; 法拉第杯 ; 静电计 ; LabVIEW ; 束流密度 ; 测试系统 英文关键词：high energy proton beam;;Faraday cup;;electrometer;;LabVIEW;;current density;;measurement system 中文刊名：JZCK 英文刊名：Computer Measurement & Control 机构：中国空气动力研究与发展中心超高速所; 出版日期：2019-02-25 出版单位：计算机测量与控制 年：2019 期：v.27;No.245 基金：国家青年科学基金项目(11702312) 语种：中文; 页：JZCK201902004 页数：4 CN：02 ISSN：11-4762/TP 分类号：20-23

摘要

主要介绍一套基于LabVIEW平台设计的高能质子束流密度分布测试系统,服务于电子器件抗辐射加固试验,用于加速器的辐射剂量测量;它由法拉第杯探测器,移动平台控制系统和基于LabVIEW的控制与数据获取软件三部分组成,具有对法拉第杯位置控制、静电计读写、智能化测量、数据实时处理等功能;性能测试显示该质子束流测量系统能实现亚pA级电流的测量,20pA量程时的测量精度为5%,解决了弱流质子束的测量问题;该系统具有可靠性高、可扩充性好、抗干扰能力强的特点,同时实验结果表明测得的质子束流密度分布,能准确评估电子器件辐射环境与剂量,为半导体器件抗辐射加固设计提供支撑。
        A LabVIEW based measurement system of the high energy proton beam current density has been developed for radiation hardening experiments of electronic devices.It mainly consists of a Faraday cup,a motor controller and a LabVIEW based DAQ software.And it performs the functions of position control of Faraday cup,read-write operation of electrometer,intellectualized measurement,real time data processing and so on.Performance tests demonstrate that current sensitivity of the system can reach sub-pA with an acquisition accuracy of 5%at the measurement range of 20 pA.This system has properties of high reliability,expansibility and interference immunity,and can meet the demands of weak proton beam measurement to provide necessary data for radiation-hardened electronic devices design.

引文

[1]O’Neill P M.Badhwar-O'Neill 2014galactic cosmic ray model Description[J].Gravit.Space Biol.,NASA/TP-2015-218569.
    [2]Dietrich W F.CREME96:A revision of the cosmic ray effects on micro-electronics code[J].IEEE Trans Nucl Sci,1997,44(6):2150-2160.
    [3]Mcmahan M A,Blackmore E,Cascio E,et al.Standard practice for dosimetry of proton beams for use in radiation effects testing of electronics[A].IEEE Conference:Radiation Effects Data Workshop[C].Lawrence Berkeley National Laboratory,2008.
    [4]Tanaka S I.High intensity proton accelerator project in Japan(J-PARC)[J].Radiat Prot.Dosim.,2005,115(1/2/3/4):33-43.
    [5]张璐,贺朝会,陈亮,等.闪烁体薄膜在线测量质子束流强度[J].核技术,2012,35(1):21-25.
    [6]Pages L,et al.Electron energy loss,range,and bremsstrahlung yield for 59elements[J].Atomic Data,1972,4:9-69.
    [7]贺朝会,耿斌,陈晓华,等.pA量级质子束流测量系统[J].核电子学与探测技术,2000,20(1):40-43.