WEKO3
アイテム
{"_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"], "permalink_uri": "https://repo.qst.go.jp/records/77044", "pubdate": {"attribute_name": "公開日", "attribute_value": "2019-10-02"}, "publish_date": "2019-10-02", "publish_status": "0", "recid": "77044", "relation": {}, "relation_version_is_last": true, "title": ["Characterization of LFS MPPC PET-detector modules: 3 mm pitch vs. 4 mm pitch"], "weko_shared_id": -1}
Characterization of LFS MPPC PET-detector modules: 3 mm pitch vs. 4 mm pitch
https://repo.qst.go.jp/records/77044
https://repo.qst.go.jp/records/770446dc2207a-ebca-4cdd-bc6f-73819531822f
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2019-10-02 | |||||
タイトル | ||||||
タイトル | Characterization of LFS MPPC PET-detector modules: 3 mm pitch vs. 4 mm pitch | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Akamatsu, Go
× Akamatsu, Go× Takyu, Sodai× Yoshida, Eiji× Nitta, Munetaka× Iwao, Yuma× Mohammadi, Akram× Tashima, Hideaki× Nishikido, Fumihiko× Yamashita, Taichi× Yamaya, Taiga× Akamatsu, Go× Takyu, Sodai× Yoshida, Eiji× Nitta, Munetaka× Iwao, Yuma× Mohammadi, Akram× Tashima, Hideaki× Nishikido, Fumihiko× Yamashita, Taichi× Yamaya, Taiga |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Abstract: Time-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 application 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. |
|||||
書誌情報 |
2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC) 発行日 2019-09 |
|||||
出版者 | ||||||
出版者 | IEEE | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2577-0829 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1109/NSSMIC.2018.8824718 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://ieeexplore.ieee.org/document/8824718 |