{"created":"2023-05-15T14:36:15.021121+00:00","id":46664,"links":{},"metadata":{"_buckets":{"deposit":"fc4d7ea4-9a6d-4c4c-9fbd-3fe3e299e527"},"_deposit":{"created_by":1,"id":"46664","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"46664"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00046664","sets":["1"]},"author_link":["465210","465203","465217","465200","465202","465206","465209","465201","465213","465216","465207","465208","465205","465215","465211","465212","465204","465214"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicPageEnd":"3180","bibliographicPageStart":"3172","bibliographicVolumeNumber":"60","bibliographic_titles":[{"bibliographic_title":"IEEE Transactions on Nuclear Science"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The X'tal cube is our original PET detector, which is being developed to achieve isotropic 3D positioning detectability. The X'tal cube is based on a 3D segmented crystal block for which all surfaces are covered with photo-detectors. Previously, instead of our initial approach of gluing segmented pieces of crystals, we successfully constructed a crystal block segmented by laser processing, and we developed the X'tal cube with the laser-processed 3D square grids of 2 mm length. In this paper, we extend the laser processing to 3D square grids of 1 mm length. The volume of a 1-mm crystal segment is 1/8 of that of a 2-mm crystal segment.We\nalso evaluate imaging resolution performance with a newly developed one-pair prototype system to simulate a ring-type scanner, while our previous reports were limited to development and evaluation of a single detector. In particular, we compare 1-mm X'tal cube detectors to 2-mm X'tal cube detectors. The one-pair prototype system consisted of two X'tal cubes, two rotating stages, and a\n192-channel data acquisition system. Each X'tal cube consisted of the LYSO cubic crystal block of 18 18 18mm in which the 3D grids of 1 mm pitch were fabricated by internal laser processing. The 4 4 arrays of multi pixel photon counters were optically coupled to each surface of the crystal block. The detector positions\nwere automatically controlled to simulate a ring-type PET with a 14.6 cm diameter. Data were collected for all assumed detector positions and then a sinogram was obtained. The data were reconstructed using filtered backprojection. The average spatial resolution of the 2-mm X'tal cubewas 1.9mmfullwidth at half maximum (FWHM) over the field-of-view (FOV). On the other hand, the average spatial resolution of the 1-mm X'tal cubewas 1.3mmFWHM over the FOV. By applying deconvolution with the assumption that the point source was a Gaussian function of 1.0mmFWHM, we estimated\nthe average spatial resolution of the 2-mm X'tal cube and the 1-mm X'tal cube as 1.6 mm FWHM and 0.83 mm FWHM, respectively. The average spatial resolution of the 1-mm X'tal cube was improved approximately 48% compared to the 2-mm X'tal cube. In conclusion, we confirmed the potential of the X'tal cube for uniform and high resolution imaging.","subitem_description_type":"Abstract"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1109/tns.2013.2280631","subitem_relation_type_select":"DOI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0018-9499","subitem_source_identifier_type":"ISSN"}]},"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":"Yoshida, Eiji"}],"nameIdentifiers":[{"nameIdentifier":"465200","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hirano, Yoshiyuki"}],"nameIdentifiers":[{"nameIdentifier":"465201","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tashima, Hideaki"}],"nameIdentifiers":[{"nameIdentifier":"465202","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Inadama, Naoko"}],"nameIdentifiers":[{"nameIdentifier":"465203","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nishikido, Fumihiko"}],"nameIdentifiers":[{"nameIdentifier":"465204","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Moriya, Takahiro"}],"nameIdentifiers":[{"nameIdentifier":"465205","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Omura, Tomohide"}],"nameIdentifiers":[{"nameIdentifier":"465206","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Watanabe, Mitsuo"}],"nameIdentifiers":[{"nameIdentifier":"465207","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murayama, Hideo"}],"nameIdentifiers":[{"nameIdentifier":"465208","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaya, Taiga"}],"nameIdentifiers":[{"nameIdentifier":"465209","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 英治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465210","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平野 祥之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465211","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田島 英朗","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465212","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉 直子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465213","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦戸 文彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465214","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大村 知秀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465215","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465216","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"465217","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Impact of Laser-Processed X'tal Cube Detectors on PET Imaging in a One-Pair Prototype System","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Impact of Laser-Processed X'tal Cube Detectors on PET Imaging in a One-Pair Prototype System"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-12-06"},"publish_date":"2013-12-06","publish_status":"0","recid":"46664","relation_version_is_last":true,"title":["Impact of Laser-Processed X'tal Cube Detectors on PET Imaging in a One-Pair Prototype System"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:49:05.162898+00:00"}