{"created":"2023-05-15T14:49:36.085451+00:00","id":67916,"links":{},"metadata":{"_buckets":{"deposit":"152304d4-7154-4fc5-b498-658767b8abac"},"_deposit":{"created_by":1,"id":"67916","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"67916"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00067916","sets":["10:28"]},"author_link":["667082","667083","667084"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2004-10-22","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The information on the electron densities of bodies is important for the treatment planning of radiotherapy. In order to obtain the electron densities directly, we have developed dual-energy x-ray computed tomography(CT) using synchrotron radiation. It was experimentally proved that the electron density was deduced with about 1 % accuracy from two linear attenuation coefficient. However, the linear attenuation coefficient were measured by a few percent lower than the theoretical ones. We assumed that the less accurate linear attenuation coefficients were caused by the influence of scattered radiation and the non-linearity in the response of the detector. In comparison of the scattered radiation to the simulation results, the\n scattered radiation contributed at the most 0.5 % to the linear attenuation coefficients. Correcting the non-linearity in the detector response functions, the values of linear attenuation coefficient were improved drastically.","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":"ROME 2004 NSS - MIC - SNPS and RTSD","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":"Tsunoo, Takanori"}],"nameIdentifiers":[{"nameIdentifier":"667082","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"et.al"}],"nameIdentifiers":[{"nameIdentifier":"667083","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"角尾 卓紀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"667084","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":"Measurement of electron density and effective atomic number using dual-energy x-ray CT","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Measurement of electron density and effective atomic number using dual-energy x-ray CT"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2004-10-28"},"publish_date":"2004-10-28","publish_status":"0","recid":"67916","relation_version_is_last":true,"title":["Measurement of electron density and effective atomic number using dual-energy x-ray CT"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:32:14.438105+00:00"}