项目名称: 临近空间高能中子和质子能谱测量技术研究
项目编号: No.11205122
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 物理学II
项目作者: 谭新建
作者单位: 西北核技术研究所
项目金额: 25万元
中文摘要: 近年来临近空间(海平面以上20~100km的空域)的应用开发得到了世界各军事强国的高度重视。临近空间高能中子、质子对临近空间飞行器安全构成严重威胁,迫切需要开展临近空间辐射环境研究。本项目在分析临近空间辐射环境及其对电子器件损伤效应特点基础上,提出新的、基于两种不同时间常数闪烁体的、临近空间高能中子、质子谱仪设计思想。通过对谱仪系统结构设计与优化、粒子甄别方法与电路实现、能谱分析与数据处理等关键技术的研究,探索实现临近空间复杂环境下的高能、宽谱中子、质子同时探测和系统小型化设计的方法,掌握临近空间辐射环境测量技术。该项目对完善临近空间理论模型,形成辐射环境测量与预报能力具有重要意义。
中文关键词: 临近空间;能谱探测器;解谱算法;粒子甄别;
英文摘要: Recently, the exploitation of near-space (the region between 20km and 100km above sea level) has given rise to national attention. However, the radiation environment of the near-space should be studied firstly, as high-energy neutron and proton in the near-space seriously imperils the safety of the aircraft at this altitude. According to the characteristic of near-space particle induced single event effects, this project proposed a new spectrometer for the high-energy neutron and proton, which involve two kinds of scintillation materials with different decay-time-constant. By the researching of system designing, particle discrimination technology and energy spectrum analysis method, this project will overcome the problem of high-energy neutron and proton detection and discrimination in the mixed field, develop the miniaturized system for near-space radiation environment. This work has great value for the revising of near-space theoretical model and the exploitation of near space.
英文关键词: near-space;spectrum detetor;spectrum unfloding;particle discrimination;