{"created":"2025-02-21T02:50:48.582476+00:00","id":2006111,"links":{},"metadata":{"_buckets":{"deposit":"61020ef6-1fb6-4b1a-ba26-1bd051fd3b07"},"_deposit":{"created_by":41,"id":"2006111","owner":"41","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2006111"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02006111","sets":["1730444908512:1730444916333"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"α線およびγ線スペクトロメトリに基づく水中ラドン濃度の精密計測法の開発","subitem_title_language":"ja"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"濱中, 俊一","creatorNameLang":"ja"},{"creatorName":"Hamanaka, Shun-ichi","creatorNameLang":"en"}],"familyNames":[{"familyName":"濱中","familyNameLang":"ja"},{"familyName":"Hamanaka","familyNameLang":"en"}],"givenNames":[{"givenName":"俊一","givenNameLang":"ja"},{"givenName":"Shun-ichi","givenNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186499011":{"attribute_name":"Rights","attribute_value_mlt":[{"subitem_rights":"Copyright(c) by Author"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"530","subitem_subject_scheme":"NDC"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"目次  緒言 / p1  第1章 序論 / p2  　1.1 本研究の背景 / p2  　1.2 本研究の目的 / p11  第2章 γ線スペクトロメトリによる水中ラドン計測法 / p13  　2.1 測定法の原理と装置 / p13  　2.2 直接γ線スペクトロメトリ法の改良 / p18  　2.3 有機溶媒抽出γ線スペクトロメトリ法 / p22  　2.4 再現性と地下水測定例 / p38  第3章 α線スペクトロメトリによる水中ラドン計測法の開発 / p43  　3.1 液体シンチレーションα線スペクトロメトリの原理 / p43  　3.2 測定装置 / p47  　3.3 測定容器からのラドンの散逸 / p47  　3.4 ラドン濃度の導出法 / p51  　3.5 検出効率 / p54  　3.6 抽出率および実効効率と最適抽出条件 / p56  　3.7 検出限界および再現性 / p66  　3.8 地下水測定例 / p66  第4章 最尤推定法と最小二乗法に基づくα線スペクトル解析法の検討 / p69  　4.1 実験データの確率分布 / p69  　4.2 最尤推定法と最小二乗法 / p73  　4.3 最尤推定法と最小二乗法によるα線スペクトル解析 / p77  　4.4 結果 / p81  　4.5 解析法による水中ラドン濃度値の比較 / p92  第5章 水中ラドン測定の応用 / p97  　5.1 ラドン分配係数の測定 / p97  　5.2 地下水中のラドンと娘核種の放射非平衡 / p108  　5.3 広島県内の地下水ラドン測定 / p113  第6章 総括 / p118  　6.1 本研究で確立した水中ラドン計測法の特徴 / p118  　6.2 最尤推定法と最小二乗法によるα線スペクトルの解析について / p119  　6.3 ラドンの分配係数について / p120  　6.4 地下水中のラドンと娘核種の挙動 / p120  　6.5 広島県内の地下水ラドン濃度の分布 / p121  第7章 結言 / p123  引用文献 / p124  付録 / p129  A.1 ラドンと娘核種の放射平衡 / p129  A.2 ²²⁶Raの崩壊とその娘核種²¹⁴Pbおよび²¹⁴Biの放射平衡 / p134  謝辞 / p136  本研究に関する主発表論文 / p138  参考論文 / p140","subitem_description_type":"TableOfContents"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_1617186819068":{"attribute_name":"Identifier Registration","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.11501/3164458","subitem_identifier_reg_type":"JaLC"}]},"item_1617187024783":{"attribute_name":"Page Start","attribute_value_mlt":[{"subitem_start_page":"1"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicPageStart":"1"}]},"item_1617187087799":{"attribute_name":"Dissertation Number","attribute_value_mlt":[{"subitem_dissertationnumber":"乙第3136号"}]},"item_1617187112279":{"attribute_name":"Degree Name","attribute_value_mlt":[{"subitem_degreename":"博士(工学)","subitem_degreename_language":"ja"},{"subitem_degreename":"Engineering","subitem_degreename_language":"en"}]},"item_1617187136212":{"attribute_name":"Date Granted","attribute_value_mlt":[{"subitem_dategranted":"1998-12-10"}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_be7fb7dd8ff6fe43","subitem_version_type":"NA"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"1) Radioactivity data analyses based on the least-squares method and the maximum likelihood method : An application to the half-life measurement of the 336 keV isomeric level of 115mIn. 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