高灵敏度太赫兹探测模块氮化铌超导SIS混频器空间环境适应性研究  

Research on the adaptability of space environment about NbN superconducting SIS mixer for high sensitivity terahertz detection module

作　　者：张坤[1,2] 姚明[1] 刘冬 刘博梁[1,2] 李婧 姚骑均[1] 史生才[1] ZHANG Kun;YAO Ming;LIU Dong;LIU Bo-Liang;LI Jing;YAO Qi-Jun;SHI Sheng-Cai(Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210034,China;School of Astronomy and Space Sciences,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院紫金山天文台,江苏南京210034 [2]中国科学技术大学,天文与空间科学学院,安徽合肥230026

出　　处：《红外与毫米波学报》2023年第2期188-192,共5页Journal of Infrared and Millimeter Waves

基　　金：Supported by National Natural Science Foundation of China(11925304,12020101002,11903086,11903087,11973095);Foundation of the Chinese Academy of Sciences(QYZDJ-SSW-SLH043,GJJSTD20210002)。

摘　　要：高灵敏度太赫兹探测模块(High Sensitivity Terahertz Detection Module,HSTDM)是中国巡天望远镜的科学载荷之一。HSTDM是一台工作频段为410~510 GHz的高灵敏度高频率分辨率的外差混频接收机,其核心是工作在10 K温区的氮化铌(NbN)基超导隧道结(Superconductor-Insulator–Superconductor,SIS)混频器。HSTDM将首次实现氮化铌(NbN)基超导SIS混频器的空间应用。NbN基超导SIS混频器应适应空间环境的特殊要求,如高可靠性,对振动、宇宙辐照和热变化的适应性。对NbN基超导SIS混频器进行的鉴定试验测试,包括正弦振动试验、随机振动试验、单粒子辐照试验、总剂量辐照试验和热循环试验。研究结果表明氮化铌(NbN)基超导SIS混频器能够满足HSTDM的空间应用需求。The high sensitivity terahertz detection module(HSTDM)is one of the scientific instruments of the China Sky Survey Telescope.HSTDM is a high-resolution spectrometer and the first space heterodyne receiver us⁃ing niobium nitride(NbN)-based superconducting tunnel junction(Superconductor-Insulator-Superconductor(SIS))mixer(the NbN SIS mixer).The NbN SIS mixer must meet the specification requested for a space envi⁃ronment,such as high operation reliability,robustness to vibration,cosmic irradiation,and thermal variation.This paper presents the space qualification tests performed on the NbN SIS mixer,including sine and random vi⁃bration tests,single-particle irradiation test,total dose radiation test,and thermal cycling test.The mixer’s per⁃formance analysis confirms that it can meet the space application requirements of HSTDM.

关 键 词：太赫兹 超导 超导隧道结(Superconductor-Insulator-Superconductor SIS)混频器 空间适应性 

分 类 号：P16[天文地球—天文学]