JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
61912002.pdf1.49 MB
title金星探査機あかつき搭載太陽電池パネルの軌道上放射線劣化解析
Other TitleAnalysis of Radiation Damage in On-orbit Solar Array of Venus Explorer AKATSUKI
Author(jpn)豊田, 裕之; 嶋田, 貴信; 高橋, 優; 今村, 剛; 羽田, 裕子; 磯部, 洋明; 浅井, 歩; 石井, 貴子; 塩田, 大幸
Author(eng)Toyota, Hiroyuki; Shimada, Takanobu; Takahashi, Yu; Imamura, Takeshi; Hada, Yuko; Isobe, Hiroaki; Asai, Ayumi; Ishii, Takako T.; Shiota, Daikou
Author Affiliation(jpn)宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS); 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS); 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS); 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS); 京都大学大学院理学研究科附属天文台; 京都大学宇宙総合学研究ユニット; 京都大学宇宙総合学研究ユニット; 京都大学大学院理学研究科附属天文台; 理化学研究所
Author Affiliation(eng)Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Kwasan Observatories, Kyoto University; Unit of Synergetic Studies for Space, Kyoto University; Unit of Synergetic Studies for Space, Kyoto University; Kwasan Observatories, Kyoto University; RIKEN
Issue Date2013-03
Publisher宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Publication title第32回宇宙エネルギーシンポジウム
32nd ISAS Space Energy Symposium
Publication date2013-03
Languagejpn
eng
AbstractThis paper describes an analysis of radiation damage in solar array of Venus explorer AKATSUKI 1) observed on orbit. The output voltage of the solar array have shown sudden drops, which are most reasonably associated with radiation damage, three times since its launch. The analysis of these radiation damage is difficult, because no direct observation data of the spectra and the amount of the high-energy particles is available. We calculated the radiation damage using the RDC method assuming a typical spectral shape of protons 2). The proton intensity was estimated from the corona mass ejection (CME) speed 3) obtained from images by the STEREO satellite. Fig. 1 shows the differential fluence of the protons used in the calculation, and Fig. 2 shows the results. The proton fluence ten times larger than estimated by the CME speed gives damage which agrees well with the telemetry data. We are examining the proton fluence for its validity at the moment.
Description会議情報: 第32回エネルギーシンポジウム (2013年3月1日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)), 相模原市, 神奈川県
形態: カラー図版あり
形態: PDF
Meeting Information: The Space Energy Symposium (March 1, 2013. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan
Physical characteristics: Original contains color illustrations
Physical characteristics: PDF
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
SHI-NOAA0061912002
Report NoSES-2012-002
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/17459


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.