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In this paper, the first results of high-speed atomic oxygen (AO) irradiation tests for atomically thin single-layer graphene sheets are presented as space environmental tolerance evaluation tests for application in astronomy. The single-layer graphene sample was prepared without a metal coating, and high-speed AO irradiation tests were conducted with an averaged velocity of ∼6 km/s using a laser-detonation AO beam source, assuming a low Earth orbit (LEO) case. Scanning electron microscopy images also support this conclusion in terms of the observed image contrast. Consequently, to protect the single-layer graphene sheets from erosion, a special treatment such as coating is needed to survive in an LEO for ≳ a year.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Graphene, X-ray Detector, Freestanding structures

刊行年月日: 2024-05-22

出版者: SPIE-Intl Soc Optical Eng

掲載誌:

• Journal of Astronomical Telescopes, Instruments, and Systems (ISSN: 23294124) vol. 10 issue. 2 026006

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5017

公開URL: https://doi.org/10.1117/1.jatis.10.2.026006

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更新時刻: 2024-11-22 16:30:59 +0900

MDRでの公開時刻: 2024-11-22 16:30:59 +0900