NAOC Open IR
Calibration of Mars Energetic Particle Analyzer (MEPA)
Tang Shuwen1; Wang Yi2; Zhao Hongyun1; Fang Fang1; Qian Yi1; Zhang Yongjie1; Yang Haibo1; Li Cunhui2; Fu Qiang3; Kong Jie1; Hu Xiangyu2; Su Hong1; Sun Zhiyu1; Yu Yuhong1; Zhang Baoming4; Sun Yu1; Sun Zhipeng1
2020
Source PublicationEarth and Planetary Physics
ISSN2096-3955
Volume4Issue:4Pages:355
AbstractThe first Mars exploration mission of China (Tianwen-1) is scheduled to be launched in 2020; a charged particle telescope, the Mars Energetic Particle Analyzer (MEPA), is carried as one of the payloads on the orbiter. The MEPA is designed to measure solar energetic particles (SEPs) and galactic cosmic rays (GCRs) in the near-Mars space and in the transfer orbit from Earth to Mars. Before the launch, the MEPA was calibrated in ground experiments with radioactive sources, electronic pulses, and accelerator beams. The calibration parameters, such as energy conversion constants, threshold values for the triggers, and particle identification criteria, were determined and have been stored for onboard use. The validity of the calibration parameters has been verified with radioactive sources and beams. The calibration results indicate that the MEPA can measure charged particles reliably, as designed, and that it can satisfy the requirements of the Tianwen-1 mission.
KeywordMars Tianwen-1 MEPA calibration
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/73883
Collection中国科学院国家天文台
Affiliation1.中国科学院近代物理研究所
2.中国地震局地震数据信息中心
3.中国科学院国家天文台
4.中国科学院国家空间科学中心
Recommended Citation
GB/T 7714
Tang Shuwen,Wang Yi,Zhao Hongyun,et al. Calibration of Mars Energetic Particle Analyzer (MEPA)[J]. Earth and Planetary Physics,2020,4(4):355.
APA Tang Shuwen.,Wang Yi.,Zhao Hongyun.,Fang Fang.,Qian Yi.,...&Sun Zhipeng.(2020).Calibration of Mars Energetic Particle Analyzer (MEPA).Earth and Planetary Physics,4(4),355.
MLA Tang Shuwen,et al."Calibration of Mars Energetic Particle Analyzer (MEPA)".Earth and Planetary Physics 4.4(2020):355.
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