{"created":"2023-05-15T14:56:46.155648+00:00","id":77044,"links":{},"metadata":{"_buckets":{"deposit":"797389e9-b2e4-41e0-919e-25af46314e86"},"_deposit":{"created_by":1,"id":"77044","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"77044"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00077044","sets":["2"]},"author_link":["789129","789126","789132","789139","789141","789128","789127","789137","789142","789125","789138","789131","789134","789143","789144","789133","789136","789130","789135","789140"],"item_10003_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-09","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{"bibliographic_title":"2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC)"}]}]},"item_10003_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Abstract: \nTime-of-flight (TOF) PET improves image quality and quantitative accuracy compared with a conventional PET system. While it is true that TOF works better for larger objects, recent improvement in timing resolution has encouraged\napplication of TOF to brain-dedicated PET systems. Thus, as the second prototype of the helmet-type PET, we have developed a new TOF brain-dedicated PET prototype using detector modules of 12×12 lutetium fine silicate (LFS) crystals (4.1×4.1×10 mm3) connected to a 12×12 (4 mm pitch, 144-ch) MPPC array. In this paper, we investigated another detector module, which has the same outer size but smaller crystals: 16×16 LFS of 3.1×3.1×10 mm3 size coupled to 16×16 (3 mm pitch, 256-ch) MPPC array. The 3-mm 256-ch module showed an energy resolution of 12.0%. For the coincidence response function, the 3-mm module showed a better full width at half maximum (FWHM) of 1.9 mm compared with the 4-mm 144-ch module (2.4 mm). The FWHM was improved by 21%. The coincidence resolving time obtained by the 3-mm 256-ch module was 241 ps. The energy resolution and coincidence resolving time were almost the same between the two modules. The 3-mm 16×16 MPPC-based TOF-PET module can be expected to improve spatial resolution without compromising the energy resolution and coincidence resolving time compared with the 4-mm 12×12 module.","subitem_description_type":"Abstract"}]},"item_10003_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"IEEE"}]},"item_10003_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1109/NSSMIC.2018.8824718","subitem_relation_type_select":"DOI"}}]},"item_10003_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://ieeexplore.ieee.org/document/8824718","subitem_relation_type_select":"URI"}}]},"item_10003_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2577-0829","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":"Akamatsu, Go"}],"nameIdentifiers":[{"nameIdentifier":"789125","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Takyu, Sodai"}],"nameIdentifiers":[{"nameIdentifier":"789126","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshida, Eiji"}],"nameIdentifiers":[{"nameIdentifier":"789127","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nitta, Munetaka"}],"nameIdentifiers":[{"nameIdentifier":"789128","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwao, Yuma"}],"nameIdentifiers":[{"nameIdentifier":"789129","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mohammadi, Akram"}],"nameIdentifiers":[{"nameIdentifier":"789130","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tashima, Hideaki"}],"nameIdentifiers":[{"nameIdentifier":"789131","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nishikido, Fumihiko"}],"nameIdentifiers":[{"nameIdentifier":"789132","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamashita, Taichi"}],"nameIdentifiers":[{"nameIdentifier":"789133","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaya, Taiga"}],"nameIdentifiers":[{"nameIdentifier":"789134","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Akamatsu, Go","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789135","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Takyu, Sodai","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789136","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshida, Eiji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789137","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nitta, Munetaka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789138","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwao, Yuma","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789139","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mohammadi, Akram","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789140","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tashima, Hideaki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789141","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nishikido, Fumihiko","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789142","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamashita, Taichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789143","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaya, Taiga","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"789144","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 paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Characterization of LFS MPPC PET-detector modules: 3 mm pitch vs. 4 mm pitch","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Characterization of LFS MPPC PET-detector modules: 3 mm pitch vs. 4 mm pitch"}]},"item_type_id":"10003","owner":"1","path":["2"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-10-02"},"publish_date":"2019-10-02","publish_status":"0","recid":"77044","relation_version_is_last":true,"title":["Characterization of LFS MPPC PET-detector modules: 3 mm pitch vs. 4 mm pitch"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:04:44.782895+00:00"}