{"created":"2023-05-15T14:51:35.836169+00:00","id":70532,"links":{},"metadata":{"_buckets":{"deposit":"f880cb00-79da-4da6-b2e8-b9c7c580053e"},"_deposit":{"created_by":1,"id":"70532","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"70532"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00070532","sets":["10:28"]},"author_link":["692694","692695"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-09-09","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In radiotherapy with a scanned carbon beam, its Bragg peak is shifted along beam direction either by inserting the range shifter plates (RS) or by changing the beam energy extracted from the synchrotron (ES).  We propose a combined longitudinal scan technique where several beam energies are used in conjunction with the range shifter plates for slighter range shift in a single treatment (CS).  In this study, this technique is evaluated from the viewpoint of dose distribution.  Three target volumes of 606060 mm3 are located at 45, 85 and 125 mm in water, and uniform clinical dose is planned for these targets.  Lateral dose falloffs at the center of SOBP are 6.6, 5.7 and 5.0 mm for these targets in CS, while they are 11.4, 8.5, 5.9 mm in RS and 5.7, 4.8, 4.6 mm in ES, respectively.  The RBEs averaged over the targets are 2.72, 2.64 and 2.54 in CS, while they are 2.58, 2.55, 2.53 in RS and 2.73, 2.66, 2.60 in ES, respectively.  These results revealed the usefulness of CS as a longitudinal scan technique with a good target conformity in carbon-ion radiotherapy.","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":"IPAC2011","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":"Inaniwa, Taku"}],"nameIdentifiers":[{"nameIdentifier":"692694","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲庭 拓","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692695","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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"The HIMAC beam-intensity control system for heavy-ion scanning","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"The HIMAC beam-intensity control system for heavy-ion scanning"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-09-16"},"publish_date":"2011-09-16","publish_status":"0","recid":"70532","relation_version_is_last":true,"title":["The HIMAC beam-intensity control system for heavy-ion scanning"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:01:49.612341+00:00"}