{"created":"2023-05-15T14:46:22.732022+00:00","id":63648,"links":{},"metadata":{"_buckets":{"deposit":"3f206276-a019-4400-a734-90a5b8745581"},"_deposit":{"created_by":1,"id":"63648","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"63648"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00063648","sets":["10:29"]},"author_link":["628216","628217"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2009-10-18","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"概要：細胞生存率を指標した放射線の線質評価ではRBE（生物学的効果比）やOER（酸素増感比）が良く使われます。一般的には、これらの指標は生存率が10％になるような線量（D10）比を用いており、D10は数Gyのオーダーになります。一方、放射線治療ではIMRT（強度変調放射線治療）などの新照射技術が導入され、腫瘍内の投与線量が増加してきています。さらに粒子線治療においても少分割照射が行われ始め、１日での投与線量は数Gyをはるかに超えることもあります。このような現状に「生存率が10％になるような線量」で評価したRBEやOERが放射線治療のための生物学として適切な線質評価の指標で有るとは言えないと思います。そこで高線量（＞10Gy）照射時におけるRBEやOERを再計算し、「生存率が10％になるような線量」で計算されたRBEやOERと比較し、相違について議論したいと思います。","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":"平成21年度京都大学原子炉実験所専門研究会","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":"平山, 亮一"}],"nameIdentifiers":[{"nameIdentifier":"628216","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平山 亮一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"628217","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":"高線量域におけるRBEとOER","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"高線量域におけるRBEとOER"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-10-19"},"publish_date":"2009-10-19","publish_status":"0","recid":"63648","relation_version_is_last":true,"title":["高線量域におけるRBEとOER"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:20:35.686596+00:00"}