{"created":"2023-05-15T14:53:06.832923+00:00","id":72422,"links":{},"metadata":{"_buckets":{"deposit":"04689963-006c-41f4-9462-1a2da448cc18"},"_deposit":{"created_by":1,"id":"72422","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"72422"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00072422","sets":["10:28"]},"author_link":["713344","713341","713348","713337","713350","713339","713336","713340","713338","713347","713343","713349","713345","713342","713346","713335"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2017-07-30","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose: At the National Institute of Radiological Sciences (NIRS), we have been commissioning the rotating- gantry system for the carbon-ion radiotherapy in 2015. It is world’s first rotating-gantry with super-conducting magnet and achieved a more compact, lighter rotating gantry than the typical gantry. During the commissioning of the rotating gantry, we adjusted the beam position using a steel sphere located at isocenter and verified the accuracy using a scintillation screen and CCD system. We employ the digital QA system to verify the geometrical accuracy easily and quickly.\n\\nMethods: The 300 ton rotating gantry can deliver carbon ions having 430 MeV/u to the isocenter over 360 degrees, having the capability of performing three-dimensional scanning irradiation. the mechanical isocenter was verified using the laser tracker system. To verify the coincidence of the isocenter for irradiation system and the patient positioning system, we used a steel sphere located at isocenter. As a part of the verifying of the treatment beam position, scintillation screen viewed by a CCD camera mounted on the gantry downstream of the sphere. Total 201energy carbon beams with that were in the range from 48 to 430 MeV/u were measured sequentially. A starshot test was also performed to verify the gantry angle and beam direction visually using a scintillator block and a CCD camera. For the starshot test, 13 beam energy were selected. \n\\nResults: From the result of the test using a sphere, the maximum displacement of the beam position was within 0.5mm at all gantry angles. The gantry starshot shows accuracy of the gantry angle was less than 0.5 degree. \n\\nConclusion: The isocentricity of the compact super-conducting rotating gantry for carbon ion therapy dedicated to the highly precise treatment were within 1mm. Two of digital measurement system brought high-efficient beam adjusting and commissioning.","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":"59th AnnualMeeting of American association of Physicists in Medicine (AAPM2017)","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":"Saotome, Naoya"}],"nameIdentifiers":[{"nameIdentifier":"713335","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Furukawa, Takuji"}],"nameIdentifiers":[{"nameIdentifier":"713336","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Saraya, Yuichi"}],"nameIdentifiers":[{"nameIdentifier":"713337","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mizushima, Kota"}],"nameIdentifiers":[{"nameIdentifier":"713338","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hara, Yousuke"}],"nameIdentifiers":[{"nameIdentifier":"713339","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tansho, Ryohei"}],"nameIdentifiers":[{"nameIdentifier":"713340","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shirai, Toshiyuki"}],"nameIdentifiers":[{"nameIdentifier":"713341","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Noda, Koji"}],"nameIdentifiers":[{"nameIdentifier":"713342","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"早乙女 直也","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713343","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"古川 卓司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713344","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"皿谷 有一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713345","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"水島 康太","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713346","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"原 洋介","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713347","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"丹正 亮平","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713348","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白井 敏之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713349","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"野田 耕司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"713350","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":"Isocenter Verification of a Compact Rotating Gantry for Carbon Ion Therapy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Isocenter Verification of a Compact Rotating Gantry for Carbon Ion Therapy"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-08-25"},"publish_date":"2017-08-25","publish_status":"0","recid":"72422","relation_version_is_last":true,"title":["Isocenter Verification of a Compact Rotating Gantry for Carbon Ion Therapy"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:40:00.665213+00:00"}