{"created":"2023-06-20T15:03:58.458379+00:00","id":33174,"links":{},"metadata":{"_buckets":{"deposit":"db57bb92-7922-45a8-b6c0-506093aa69d9"},"_deposit":{"created_by":1,"id":"33174","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"33174"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00033174","sets":["1887:1890","1896:1898:1899:1912"]},"author_link":["415020","415012","415025","414987","415000","415014","415023","414995","415018","415002","415007","414990","414994","414982","415004","414985","415009","414984","414996","414998","414980","414991","415022","415015","414988","415011","414989","414993","414997","415010","415024","414999","414986","414981","415013","415019","415021","415006","415026","415016","415027","414992","415001","415008","414983","415005","415017","415003"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Balloom-Brone Experiment with a Superconducting Magnetic Rigidity Spectrometer (BESS)-(1) / BESS Spectrometer and Balloon Flights"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"119","bibliographicPageStart":"103","bibliographicVolumeNumber":"33","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告. 特集: 大気球研究報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"超伝導マグネット・スペクトロメーターを用いた宇宙粒子線観測・気球実験(Balloon Borne Experiment with a Superconducting Magnetic Rigidity Spectrometer)は,宇宙起源反粒子探索及び宇宙粒子線の精密観測を目的とする日米・国際共同実験として推進されている[1-7]。NASAおよび宇宙科学研究所を相互の代表機関とし,東京大学,高エネルギー物理学研究所,神戸大学,ニューメキシコ州立大学が研究に参加している。日本側グループがスペクトロメーター本体を準備し,アメリカ側グループが気球の飛翔,制御を担当している。この実験計画は,1980年代にNASAを中心に検討されたASTROMAG計画の準備研究に於て,ソレノイド型超伝導マグネット・スペクトロメーターの構想を提案し,基礎開発を行なった事から,その第一段階となる気球実験としてスタートした[8-9]。この実験協力が1987年にスタートして以来6年の準備期間を経て,1993年に第一回の気球飛翔実験に成功した。1994年には第二回,1995年には第三回・気球飛翔実験に成功した。実験は,北磁極に近いカナダ北部のマニトバ州リンレークからアルバーター州ピースリバーにかけて実施され,合計約50時間の科学観測に成功し,実験機器も無事回収されている。これまでにBESS93の気球飛翔実験についてデータ解析を完了し,運動エネルギー500MeV以下の運動エネルギー領域で,反陽子を4イベント検出した[10-12]。この結果は,低エネルギー領域(<500MeV)での初めての明確な宇宙線反陽子の観測として評価を受けている。BESS93∿95の総合的なデータ解析からは,途中経過として,運動エネルギー<1.2GeVに於て,合計∿50イベントの反陽子候補を検出している。また反ヘリウムの探索については,1993年∿1995年のデータを合わせ,従来の観測よりも一桁高い感度での存在上限値(反ヘリウム/ヘリウム比=8×10^<-6>,@95%CL)を得ている[13-15]。実験は,結果が現われ始めた段階であるが,経過と現状を報告する。","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Balloon-borne Experiment using a superconducting magnetic rigidity spectromeer is being carried out as a NASA-ISAS cooperative project. The spectrometer features to have a large geometrical acceptance of 0.4 m^2str based on a concept of transparent solenoidal magnet and horizontally cylindrical layout of the spectrometer, and it may realize a highly sensitive search for cosmic ray antiparticle search. This paper describes the spectrometer and progress of the balloon-borne spectrometer as the part (1).","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0167073000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0285-9920","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00354485","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"神戸大学"},{"subitem_text_value":"高エネルギー物理学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"神戸大学"},{"subitem_text_value":"神戸大学"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"東京大学"}]},"item_9_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"New 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