{"created":"2023-05-15T14:33:27.054440+00:00","id":43383,"links":{},"metadata":{"_buckets":{"deposit":"7017bb48-073c-4c5b-9cf7-239da0f82901"},"_deposit":{"created_by":1,"id":"43383","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"43383"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00043383","sets":["1"]},"author_link":["431512","431515","431514","431513"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-05","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"2093","bibliographicPageStart":"2083","bibliographicVolumeNumber":"49","bibliographic_titles":[{"bibliographic_title":"Physics in Medicine and Biology"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In Compton cameras, the measured scattering angle is associated with an\nuncertainty which becomes larger as the incident gamma-ray energy decreases.\nSince this uncertainty degrades the spatial resolution of reconstructed images,\nHirasawa and Tomitani (2003 Phys. Med. Biol. 48 1009-26) previously\nrevised their analytical reconstruction algorithm to compensate for it. As\nthe new algorithm improved the spatial resolution in effect, they expected\nthe enhancement of the statistical noise. In this paper, the effect of this\ncompensation has been analysed in view of spatial resolution (the FWHM\nof the noise-free reconstructed image for a point source distribution), statistical\nnoise (the relative standard deviation of reconstructed images for an isotropic\nsource distribution) and image quality (the roughness of reconstructed images\nfor a phantom). The results describe not only the effect of the compensation,\nbut also the relation between the statistical noise and three parameters, i.e., the\nincident gamma-ray energy, the spatial resolution and the measured total event\nnumbers, in reconstruction with compensation. This relation should be taken\ninto account for the design of Compton cameras with good quality image, i.e.,\nuseful image, output.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0031-9155","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":"Hirasawa, Masahiko"}],"nameIdentifiers":[{"nameIdentifier":"431512","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tomitani, Takehiro"}],"nameIdentifiers":[{"nameIdentifier":"431513","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平澤 雅彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"431514","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"富谷 武浩","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"431515","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":"Effect of compensation for scattering angular uncertainty in analytical Compton camera reconstruction","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effect of compensation for scattering angular uncertainty in analytical Compton camera reconstruction"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2004-05-05"},"publish_date":"2004-05-05","publish_status":"0","recid":"43383","relation_version_is_last":true,"title":["Effect of compensation for scattering angular uncertainty in analytical Compton camera reconstruction"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:27:58.478755+00:00"}