{"created":"2023-05-15T14:52:43.995983+00:00","id":71997,"links":{},"metadata":{"_buckets":{"deposit":"403c11f2-bddc-4da9-9f46-f840aac7040a"},"_deposit":{"created_by":1,"id":"71997","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"71997"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00071997","sets":["10:28"]},"author_link":["709131","709118","709130","709115","709122","709126","709127","709129","709121","709123","709125","709128","709117","709119","709132","709116","709124","709120"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2016-08-08","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ブラッグピーク位置を患部に合わせて照射を行う重粒子線治療では、ビーム飛程の精度が重要となる。放射線医学総合研究所等で使用されている遅い取出し法では、スピル中のベータトロンチューンシフトにより時間的に飛程が変化する可能性がある。そこで、シンチレータとCCDカメラを用いたシステムを使って飛程の時間変化を測定した。このシステムで取得した画像から、ビーム進行方向の輝度分布を作成し、その分布のディスタル領域の最大輝度の80％位置を飛程として定義した。本システムではおよそ170ms毎に測定が可能で、飛程測定精度は0.2mm程度である。複数ビーム強度での スピル中の飛程測定結果より、飛程変化は時間の関数ではなく、リング中の残留粒子数の関数であるということがわかった。本発表ではスピル中の飛程変化測定結果、特にクロマティシティー変化時の飛程変化、プレヒートによる飛程変化対策について報告する。 ","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第13回日本加速器学会年会","subitem_description_type":"Other"}]},"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":"早乙女, 直也"}],"nameIdentifiers":[{"nameIdentifier":"709115","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"古川, 卓司"}],"nameIdentifiers":[{"nameIdentifier":"709116","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"水島, 康太"}],"nameIdentifiers":[{"nameIdentifier":"709117","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"竹下, 英里"}],"nameIdentifiers":[{"nameIdentifier":"709118","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"原, 洋介"}],"nameIdentifiers":[{"nameIdentifier":"709119","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"皿谷, 有一"}],"nameIdentifiers":[{"nameIdentifier":"709120","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"丹正, 亮平"}],"nameIdentifiers":[{"nameIdentifier":"709121","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白井, 敏之"}],"nameIdentifiers":[{"nameIdentifier":"709122","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"野田, 耕司"}],"nameIdentifiers":[{"nameIdentifier":"709123","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"早乙女 直也","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709124","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"古川 卓司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709125","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"水島 康太","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709126","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"竹下 英里","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709127","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"原 洋介","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709128","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"皿谷 有一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709129","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"丹正 亮平","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709130","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白井 敏之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709131","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"野田 耕司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"709132","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"遅い取出し法のためのスピル中ビーム飛程変化測定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"遅い取出し法のためのスピル中ビーム飛程変化測定"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-08-23"},"publish_date":"2016-08-23","publish_status":"0","recid":"71997","relation_version_is_last":true,"title":["遅い取出し法のためのスピル中ビーム飛程変化測定"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:44:59.074620+00:00"}