{"created":"2023-06-20T14:38:43.258296+00:00","id":5311,"links":{},"metadata":{"_buckets":{"deposit":"3c8bcf15-ff9f-4a62-a00b-9cfe2d93e432"},"_deposit":{"created_by":1,"id":"5311","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5311"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00005311","sets":["1887:1891","9:789:956:959"]},"author_link":["25753","25764","25744","25752","25742","25755","25756","25759","25769","25761","25766","25768","25749","25754","25772","25762","25757","25765","25774","25775","25760","25776","25743","25745","25773","25763","25748","25767","25747","25771","25770","25746","25750","25751","25758"],"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-02-27","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"385","bibliographicPageStart":"380","bibliographicVolumeNumber":"JAXA-SP-08-014E","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料"},{"bibliographic_title":"JAXA Special Publication: Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop","bibliographic_titleLang":"en"}]}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop (RIKEN, 10-12 June 2008)","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"On X-ray and hard X-ray astronomy, the polarization is the last key. It is very useful to understand the radiation mechanism of gamma-ray bursts and pulsars, magnetic structure of supernova remnants, space-time curvature near black hole, and so on. However, the observation for the polarization has been rarely carried out for about 30 years since the observation of the Crab Nebula in X-ray region. It is because of the difficulty for development of the polarimeter with high sensitivity. We have been developing a hard X-ray polarimeter with high sensitivity, called as a PHENEX (Polarimetry for High ENErgy X rays) polarimeter. The PHENEX polarimeter is Compton scattering type polarimeter sensitive to the energy range from 40 keV to 200 keV and is constructed assembling several detectors called as \"unit counter\". The unit counter is a detector utilizing Compton scattering and it has a modulation factor of 53 % and a detection efficiency of 20 % at 80 keV. We constructed prototype PHENEX polarimeter with four unit counters and carried out a preliminary observation of the Crab Nebula on Jun. 13th 2006 as a balloon-borne experiment. Though we confirmed that the PHENEX detected hard X rays from the Crab Nebula with significance of 8 sigma, the degree and the direction of the polarization could not be determined with high accuracy because the attitude control system does not function correctly. Now we are improving the performance of the ACS and the polarimeter to realize the observation of the Crab Nebula with higher accuracy in the next balloon-borne experiment. In this paper, we will present the follows: (1) summary of the PHENEX polarimeter and preliminary observation of Crab Nebula; (2) fix of the ACS trouble; (3) improvement of the PHENEX polarimeter; (4) expected performance for the next observation.","subitem_description_type":"Other"}]},"item_5_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0064306072","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-SP-08-014E","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-113X","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11984031","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"山形大学"},{"subitem_text_value":"理化学研究所"},{"subitem_text_value":"理化学研究所"},{"subitem_text_value":"大阪大学"},{"subitem_text_value":"大阪大学"},{"subitem_text_value":"大阪大学"},{"subitem_text_value":"大阪大学"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"},{"subitem_text_value":"高エネルギー加速器研究機構"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Yamagata University"},{"subitem_text_language":"en","subitem_text_value":"Institute of Physical and Chemical Research (RIKEN)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Physical and Chemical Research (RIKEN)"},{"subitem_text_language":"en","subitem_text_value":"Osaka University"},{"subitem_text_language":"en","subitem_text_value":"Osaka University"},{"subitem_text_language":"en","subitem_text_value":"Osaka University"},{"subitem_text_language":"en","subitem_text_value":"Osaka University"},{"subitem_text_language":"en","subitem_text_value":"College of the Holy Cross"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)"},{"subitem_text_language":"en","subitem_text_value":"High Energy Accelerator Research Organization (KEK)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岸本, 祐二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"郡司, 修一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石川, 優詩"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"高田, 真"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"東海林, 礼之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田中, 佑麿"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"門叶, 冬樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"櫻井, 敬久"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"三原, 建弘"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"林田, 清"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"穴吹, 直久"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"常深, 博"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"斎藤, 芳隆"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小浜, 光洋"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鈴木, 素子"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岸本, 俊二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kishimoto, Yuji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Gunji, Shuichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ishikawa, Y","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takada, M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toukairin, N","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, Y","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tokanai, Fuyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sakurai, Hirohisa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Mihara, Tatehiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sato, T","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hayashida, 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