地球与行星物理论评（中英文）2024，Vol.55Issue(3)：308-316,9.DOI:10.19975/j.dqyxx.2023-035
行星际超低噪声三维能量粒子谱仪设计
Design of an interplanetary ultralow-noise three-dimensional energetic particle spectrometer
摘要
Abstract
The origin and acceleration of solar and heliospheric energetic particles have been prevalent re-search frontiers in space physics.Solar and heliospheric energetic particles measured in the interplanetary medium(IPM)can be classified into two major groups:continuous"solar wind suprathermal particles"and transient"solar energetic particles".Due to the limited sensitivity of instruments used to investigate energetic particles in the IPM,the origin/acceleration processes of heliospheric energetic particles remain poorly understood.In this study,we de-signed a new-generation interplanetary ultralow-noise three-dimensional energetic particle spectrometer meeting leading world-class specifications.The spectrometer utilizes a double-ended telescope structure and multi-layer,multi-pixel semiconductor detectors to assess the complete three-dimensional distribution of 20-1000 keV elec-trons and 25-12000 keV protons in the IPM.The spectrometer integrates the following cutting-edge technologies:(1)utilizing anti-coincidence correlations between adjacent detectors with narrow interlayer spacing to minimize the noise generated by cosmic rays and other high-energy penetrating particles in the semiconductor detectors;(2)a double-ended open telescope structure design,with thin foil covering to stop protons for high-sensitivity electron detection in one direction,magnets to sweep away electrons for high-sensitivity proton detection in the opposite direction,multi-layer detectors for dE/dXanalysis,and high-precision discrimination of electron,proton,and helium ion types;(3)a large-area silicon semiconductor detector,combined with a large field of view covering nearly 4π solid angles,to improve the geometric factor and temporal resolution of the spectrometer;(4)four layers of a 5-pixel silicon semiconductor detector array to achieve high angular resolution;and(5)low-noise multi-channel Ap-plication Specific Integrated Circuit(ASIC)technology to achieve precise energy level observation and high en-ergy resolution.The spectrometer will provide key measurements that reveal the physical nature of the origin/accele-ration processes of solar and heliospheric energetic particles,which will prove beneficial for the upcoming inter-planetary and deep space explorations by China.关键词
太阳系能量粒子/行星际能量粒子仪器/双端望远镜结构/大面积半导体探测器Key words
solar and heliospheric energetic particles/interplanetary energetic particle spectrometer/double-ended telescope structure/large-area semiconductor detectors分类
地球科学引用本文复制引用
于向前,邹鸿,王玲华,王永福,施伟红,宗秋刚,杨芯,王游龙,叶雨光,陈鸿飞..行星际超低噪声三维能量粒子谱仪设计[J].地球与行星物理论评（中英文）,2024,55(3):308-316,9.基金项目
国家基金委国家重大科研仪器研制资助项目-行星际超低噪声三维能量粒子谱仪研制(42127803) （42127803）
国家基金委杰出青年基金资助项目(42225404) （42225404）
国家基金委专项资助项目(42150105) （42150105）
科技部国家重点研发计划资助项目(2021YFA0718600)Supported by the National Major Scientific Research Instrument Development Project-Development of Interplanetary Ultralow noise 3-Dimensional Energetic Particle Instrument,China(Grant No.42127803),the National Science Fund for Distinguished Young Scholars(Grant No.42225404),the Special Funded Projects by the National Foundation of China(Grant No.42150105),and the National Key R&D Program of the Ministry of Science and Technology(Grant No.2021YFA0718600) （2021YFA0718600）
