Calibration of Mars Energetic Particle Analyzer (MEPA)

NAOC Open IR

	Calibration of Mars Energetic Particle Analyzer (MEPA)
	Tang Shuwen 1; Wang Yi 2; Zhao Hongyun 1; Fang Fang 1; Qian Yi 1; Zhang Yongjie 1; Yang Haibo 1; Li Cunhui 2; Fu Qiang3 ; Kong Jie 1; Hu Xiangyu 2; Su Hong 1; Sun Zhiyu 1; Yu Yuhong 1; Zhang Baoming 4; Sun Yu 1; Sun Zhipeng 1
	2020
Source Publication	Earth and Planetary Physics
ISSN	2096-3955
Volume	4 Issue:4 Pages:355
Abstract	The 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.
Keyword	Mars Tianwen-1 MEPA calibration
Language	英语
Document Type	期刊论文
Identifier	http://ir.bao.ac.cn/handle/114a11/73883
Collection	中国科学院国家天文台
Affiliation	1.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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