面向地外行星探测的脉冲中子元素分析仪  

Pulsed Neutron Elemental Composition Analyzer for Extraterrestrial Planets Exploration

作　　者：王智健 张永强 张飞[3] 马涛[2] 赵海峰[3,4] 张喆 韩如锦 王辅辅 穆瑞楠[3] 王珂 WANG Zhijian;ZHANG Yongqiang;ZHANG Fei;MA Tao;ZHAO Haifeng;ZHANG Zhe;HAN Rujin;WANG Fufu;MU Ruinan;WANG Ke(East China University of Technology,Nanchang 330032,China;Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023,China;Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]东华理工大学,南昌330032 [2]中国科学院紫金山天文台,南京210023 [3]中国科学院太空应用重点实验室,中国科学院空间应用工程与技术中心,北京100094 [4]中国科学院大学航空宇航学院,北京100049

出　　处：《深空探测学报（中英文）》2024年第5期496-504,共9页Journal Of Deep Space Exploration

基　　金：中国科学院科技创新项目(JCPYJJ-22002)。

摘　　要：以模拟月球的地层为研究对象,设计了一种小型化的高产额中子管,开展了集成化中子-伽玛谱仪研究,建立了元素分析谱库和解谱方法,通过搭建已知元素含量的模拟井和地面测试验证平台,实现了对模拟月球次表层常量元素、稀有元素等元素的定量分析。中子发生器的产额在107~108个/s之间(分别对应脉冲和直流模式),探测时间在分钟量级,可达到5%的精度。该研究工作实现了对行星探测任务的中子-伽玛谱仪轻小型化关键技术的重要突破,提高了探测速度,为在未来深空探测任务中的载荷应用工程化奠定基础。In order to simulate the strata of the Moon,a miniaturized high-yield neutron generator and an integrated neutron-gamma spectrometer were designed,and an elemental analysis library and a solution method were established,a simulated well and a ground verification platform with known element content were constructed,enabling the realization of quantitative analysis for primary elements,rare elements,and other elements within the simulated lunar subsurface.The neutron generator has a yield of between 107 and 108 N/s(corresponding to pulse and DC modes,respectively),and the detection time is in the order of minutes,which can achieve an accuracy of 5%.A breakthrough in the key technology of lightweight miniaturization for neutron-gamma spectrometers in planetary exploration missions has been accomplished through this research.This achievement has established a strong foundation for future endeavors in payload space engineering.

关 键 词：月球探测 脉冲中子元素分析仪 解谱算法 月球模拟地层 伽玛谱仪 

分 类 号：V1[航空宇航科学与技术—人机与环境工程]