{"created":"2023-05-15T14:49:50.027391+00:00","id":68225,"links":{},"metadata":{"_buckets":{"deposit":"fd6f8b88-3278-4054-a81d-f53d18d6c7e2"},"_deposit":{"created_by":1,"id":"68225","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"68225"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00068225","sets":["10:28"]},"author_link":["669871","669870"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2005-10-29","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"jPET-RD is designed to achieve high sensitivity as well as high spatial resolution by the use of four-layer depth of interaction (DOI) information of the detector. We have previously proposed the DOI encoding method that enables four layers DOI identification using only single kind crystal elements. The basic idea was tested by using Gd2SiO5, and the first prototype detector was developed using Lu2(1-x)Y2xSiO5 (LYSO). In this work, we measured response functions of a jPET-RD prototype detector composed of four layers of a 32 (axial) x 8 (transaxial) LYSO (Lu: 98%, Y: 2%) crystal block with 511 keV gamma rays to estimate resolution performance. The size of each crystal element is 1.44 mm x 1.44 mm x 4.5 mm. The crystal block (46.5 mm x 11.6 mm x 18.0 mm) is placed on the central area of a 256-channel flat panel position sensitive photomultiplier tube (49 mm x 49 mm useful area) and coupled with silicone rubber. As a result, the averaged FWHM of response functions was 1.56 mm in axial and 4.51 mm in depth direction. The energy resolution of all events was 14.7% and the time resolution was found to be 0.66 ns. The experimental results promise excellent performance of a jPET-RD detector.","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":"Nuclear Science Symposium  & Medical Imaging Conference","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":"Tsuda, Tomoaki"}],"nameIdentifiers":[{"nameIdentifier":"669870","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"津田 倫明","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"669871","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 32 x 8 x 4 LYSO Crystal Responses of DOI Detector for jPET-RD","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Measurement of 32 x 8 x 4 LYSO Crystal Responses of DOI Detector for jPET-RD"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2005-11-08"},"publish_date":"2005-11-08","publish_status":"0","recid":"68225","relation_version_is_last":true,"title":["Measurement of 32 x 8 x 4 LYSO Crystal Responses of DOI Detector for jPET-RD"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:28:37.734904+00:00"}