{"created":"2023-05-15T14:37:49.585676+00:00","id":48805,"links":{},"metadata":{"_buckets":{"deposit":"0a3c4a3a-603c-4283-bdab-7ef54606d89a"},"_deposit":{"created_by":1,"id":"48805","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"48805"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00048805","sets":["1"]},"author_link":["491534","491537","491525","491533","491532","491531","491540","491530","491524","491529","491535","491527","491536","491538","491526","491528","491539"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"A","bibliographicPageEnd":"217","bibliographicPageStart":"214","bibliographicVolumeNumber":"406","bibliographic_titles":[{"bibliographic_title":"Nuclear Instruments and Methods in Physics Research Section B"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"To increase the beam intensity of cyclotrons used for producing radionuclides, beam loss during extraction must be reduced. Extraction efficiency is limited by the beam parameters in front of the deflector, especially angular distribution. Computer simulation of the second harmonic mode for 18 MeV protons, which is frequently used, has been carried out to understand beam behavior in a cyclotron. The extraction efficiency is determined by the width of the angular distribution of particles in the phase space plot at the deflector. An effective method to reduce the width is to shorten the bunch at injection. The simulation shows that the bunch phase length at injection must be ⩽30° to realize a 30 μA extraction beam current and satisfy the deflector heat limit of 200 W.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"ELSEVIER"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.nimb.2016.11.015","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"https://doi.org/10.1016/j.nimb.2016.11.015"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.nimb.2016.11.015","subitem_relation_type_select":"DOI"}}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nakao, Masao"}],"nameIdentifiers":[{"nameIdentifier":"491524","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hojo, Satoru"}],"nameIdentifiers":[{"nameIdentifier":"491525","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Katagiri, Ken"}],"nameIdentifiers":[{"nameIdentifier":"491526","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Miyahara, Nobuyuki"}],"nameIdentifiers":[{"nameIdentifier":"491527","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Noda, Akira"}],"nameIdentifiers":[{"nameIdentifier":"491528","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sugiura, Akinori"}],"nameIdentifiers":[{"nameIdentifier":"491529","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Wakui, Takashi"}],"nameIdentifiers":[{"nameIdentifier":"491530","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"V.Smirnov(JINR）"}],"nameIdentifiers":[{"nameIdentifier":"491531","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"S.Vorozhtsov(JINR)"}],"nameIdentifiers":[{"nameIdentifier":"491532","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"A.Goto(RIKEN）"}],"nameIdentifiers":[{"nameIdentifier":"491533","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中尾 政夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491534","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"北條 悟","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491535","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"片桐 健","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491536","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宮原 信幸","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491537","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"野田 章","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491538","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"杉浦 彰則","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491539","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"涌井 崇志","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491540","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Approach to increase beam intensity extracted from a cyclotron","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Approach to increase beam intensity extracted from a cyclotron"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-04-24"},"publish_date":"2018-04-24","publish_status":"0","recid":"48805","relation_version_is_last":true,"title":["Approach to increase beam intensity extracted from a cyclotron"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:24:07.510791+00:00"}