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The Advanced Small Analyzer for Neutrals (ASAN) on the Chang'E-4 Rover Yutu-2
Alternative TitleWOS:000542612700003;20202408824830
Wieser, M.; Barabash, S.; Wang, X-D; Grigoriev, A.; Zhang, A.; Wang, C.; Wang, W.
Source PublicationSPACE SCIENCE REVIEWS
2020
Volume216Issue:4Pages:73
DOI10.1007/s11214-020-00691-w
ISSN0038-6308
Language英语
KeywordMass resolving energetic neutral atom analyzer Lunar surface Solar wind regolith interaction Chang'E-4 Yutu-2 SPACE PLASMAS LUNAR ATOMS INSTRUMENT SCATTERING DEPOSITS MOON
AbstractThe Advanced Small Analyzer for Neutrals (ASAN) is a compact mass resolving energetic neutral atom analyzer flown on the Yutu-2 rover of the Chinese Chang'E-4 mission to the Moon. ASAN measures energetic neutral atoms in the energy range from 10 eV to 10 keV with typically 30% energy resolution. The field-of-view is a single angular pixel of 37 degrees x 30 degrees pointing at lunar surface. Energetic neutral atoms enter the instrument through a charge particle deflection system and are then ionized on a diamond-like carbon conversion surface. Positive ions from the conversion surface are energy analyzed using an electrostatic analyzer and their velocity is subsequently determined in a time-of-flight section using ceramic channel electron multipliers as detectors. The obtained mass resolution m/Delta m is about 2, comfortably separating neutral hydrogen, helium, and the oxygen-group (>= 16 amu). A full energy spectrum for energetic neutral atoms is obtained in 3 seconds. Switching the charged particle deflection system off, ASAN also directly measures positive ions with similar performance as for energetic neutral atoms. Including electronics the instrument weighs 970 g and consumes 3.4 W.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7724
Collection中国科学院国家空间科学中心
Affiliation1.[Wieser, M.
2.Barabash, S.
3.Swedish Inst Space Phys, Box 812, S-98128 Kiruna, Sweden
4.[Grigoriev, A.] Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 44346, F-31028 Toulouse 4, France
5.[Zhang, A.
6.Wang, C.
7.Wang, W.] Chinese Acad Sci, Natl Space Sci Ctr NSSC, 1 Nanertiao, Beijing 100190, Peoples R China
8.[Zhang, A.
9.Wang, C.] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wieser, M.,Barabash, S.,Wang, X-D,et al. The Advanced Small Analyzer for Neutrals (ASAN) on the Chang'E-4 Rover Yutu-2[J]. SPACE SCIENCE REVIEWS,2020,216(4):73.
APA Wieser, M..,Barabash, S..,Wang, X-D.,Grigoriev, A..,Zhang, A..,...&Wang, W..(2020).The Advanced Small Analyzer for Neutrals (ASAN) on the Chang'E-4 Rover Yutu-2.SPACE SCIENCE REVIEWS,216(4),73.
MLA Wieser, M.,et al."The Advanced Small Analyzer for Neutrals (ASAN) on the Chang'E-4 Rover Yutu-2".SPACE SCIENCE REVIEWS 216.4(2020):73.
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