{"created":"2023-05-15T14:55:48.731612+00:00","id":75784,"links":{},"metadata":{"_buckets":{"deposit":"ed25ce44-2cca-40ca-9612-2020c3acafda"},"_deposit":{"created_by":1,"id":"75784","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"75784"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00075784","sets":["10:28"]},"author_link":["756397","756387","756403","756390","756392","756391","756401","756385","756405","756399","756395","756396","756393","756384","756386","756388","756402","756404","756389","756400","756398","756394"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2019-05-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"National Institute of Radiological Sciences (NIRS) has performed carbon-ion radiotherapy since 1994 using the Heavy Ion Medical Accelerator in Chiba (HIMAC) which is the world’s first heavy-ion accelerator facility dedicated to medical use. The treatments with the carbon-ion beams have been successfully carried out for more than 10000 patients in the NIRS. Now, the NIRS has investigated multiple-ion therapy with the energetic beams of more than two ion species to improve outcomes of the refractory cancer treatment. By appling the multiple-ion beams for treatment irradiation, we become controllable not only the dose but also the linear energy transfer (LET), which concerns with the biological effect, in the target volume. \nTo realize multiple-ion therapy, it is required that the accelerator control system can switch the ion species, energy and intensity of the output beams quickly in the treatment session. For this purpose, we have studied the switching method of the multiple-ion beams using multiple-energy operation at the HIMAC. Since this method accelerates the multiple-ion beams with the charge-to-mass ratio Q/A of 1/2 without changing the magnetic operation pattern of the synchrotron, the irradiation ion species can be changed only by switching the ion sources and the injector parameters. Therefore, this method can perform the fast switching of the irradiation ion species. In addition, because of the use of the same magnetic operation pattern, we can reduce the time for the commissioning and daily adjustments of the multiple-ion beams.\nIn this paper, we describe our accelerator control method for multi-ion therapy operation and the results of the beam experiments at the HIMAC.","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":"13th European Conference on Accelerators in Applied Research and Technology (ECAART13)","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":"Mizushima, Kota"}],"nameIdentifiers":[{"nameIdentifier":"756384","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwata, Yoshiyuki"}],"nameIdentifiers":[{"nameIdentifier":"756385","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Furukawa, Takuji"}],"nameIdentifiers":[{"nameIdentifier":"756386","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Muramatsu, Masayuki"}],"nameIdentifiers":[{"nameIdentifier":"756387","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sato, Shinji"}],"nameIdentifiers":[{"nameIdentifier":"756388","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hara, Yousuke"}],"nameIdentifiers":[{"nameIdentifier":"756389","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tansho, Ryohei"}],"nameIdentifiers":[{"nameIdentifier":"756390","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Saotome, Naoya"}],"nameIdentifiers":[{"nameIdentifier":"756391","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Saraya, Yuichi"}],"nameIdentifiers":[{"nameIdentifier":"756392","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shirai, Toshiyuki"}],"nameIdentifiers":[{"nameIdentifier":"756393","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Noda, Koji"}],"nameIdentifiers":[{"nameIdentifier":"756394","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mizushima, Kota","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756395","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwata, Yoshiyuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756396","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Furukawa, Takuji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756397","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Muramatsu, Masayuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756398","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sato, Shinji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756399","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hara, Yousuke","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756400","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tansho, Ryohei","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756401","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Saotome, Naoya","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756402","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Saraya, Yuichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756403","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shirai, Toshiyuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756404","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Noda, Koji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"756405","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":"Experimental verification of beam switching operation for multiple-ion therapy application at the HIMAC synchrotron","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Experimental verification of beam switching operation for multiple-ion therapy application at the HIMAC synchrotron"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-05-10"},"publish_date":"2019-05-10","publish_status":"0","recid":"75784","relation_version_is_last":true,"title":["Experimental verification of beam switching operation for multiple-ion therapy application at the HIMAC synchrotron"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:48:52.321920+00:00"}