{"created":"2023-05-15T14:45:35.031506+00:00","id":62284,"links":{},"metadata":{"_buckets":{"deposit":"871421ba-e6b4-46ff-88a0-b3f470b697f2"},"_deposit":{"created_by":1,"id":"62284","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"62284"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00062284","sets":["10:29"]},"author_link":["615610","615599","615602","615609","615606","615601","615611","615608","615607","615600","615603","615604","615598","615605"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2007-11-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"消滅放射線の飛行時間差を画像再構成に用いることで、従来のPETよりも実効的な装置感度が上昇する、いわゆるTime-of-Flight型のPET（TOF-PET）装置では、搭載される放射線検出器の時間分解能が高まるほど、感度の増倍率が向上する。これまで、消滅放射線とシンチレータ結晶の相互作用位置の深さ情報（DOI情報）は、主にFOV辺縁部における解像度の改善を目的として開発されてきたが、本演題では、DOI情報が放射線検出器の時間分解能の向上にも寄与することを示す。つまり、消滅放射線が光速度cでシンチレータ中を透過するのに対して、シンチレーション光は（c／n）に減速するため、DOIによって時刻情報に誤差を生じてしまう（nはシンチレータの屈折率）。DOI検出器では、この時刻誤差を補正することにより、時間分解能が向上する。結論として、DOI+TOF-PETという、新たなPET装置の概念を提案する。","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":"第47回日本核医学会学術総会","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":"澁谷, 憲悟"}],"nameIdentifiers":[{"nameIdentifier":"615598","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦戸, 文彦"}],"nameIdentifiers":[{"nameIdentifier":"615599","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉, 直子"}],"nameIdentifiers":[{"nameIdentifier":"615600","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田, 英治"}],"nameIdentifiers":[{"nameIdentifier":"615601","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｌａｍ, ＣｈｉｈＦｕｎｇ"}],"nameIdentifiers":[{"nameIdentifier":"615602","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷, 泰賀"}],"nameIdentifiers":[{"nameIdentifier":"615603","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山, 秀雄"}],"nameIdentifiers":[{"nameIdentifier":"615604","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"澁谷 憲悟","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615605","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦戸 文彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615606","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉 直子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615607","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 英治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615608","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｌａｍ ＣｈｉｈＦｕｎｇ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615609","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615610","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615611","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":"4層DOI情報による放射線検出器の時間分解能向上とDOI+TOF-PETの提案","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"4層DOI情報による放射線検出器の時間分解能向上とDOI+TOF-PETの提案"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-11-08"},"publish_date":"2007-11-08","publish_status":"0","recid":"62284","relation_version_is_last":true,"title":["4層DOI情報による放射線検出器の時間分解能向上とDOI+TOF-PETの提案"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:32:31.861580+00:00"}