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The\nthermal and epithermal neutron sensitivities of the device\nwere evaluated using accelerator neutrons from the 9Be(d,\nn) reaction at a deuteron energy of 4 MeV (4 MeV d-Be\nneutrons). The response of the chamber in terms of the\nelectric charge induced in the LBO chamber was compared\nwith the thermal and epithermal neutron fluences measured\nusing the gold-foil activation method. The thermal and\nepithermal neutron sensitivities obtained were expressed in\nunits of pC cm2, i.e., from the chamber response divided by\nneutron fluence (cm-2). The measured LBO chamber\nsensitivities were 2.23 9 10-7 ± 0.34 9 10-7 (pC cm2)\nfor thermal neutrons and 2.00 9 10-5 ± 0.12 9 10-5\n(pC cm2) for epithermal neutrons. This shows that the LBO\nchamber is sufficiently sensitive to epithermal neutrons to\nbe useful for epithermal neutron monitoring in BNCT\nirradiation.", "subitem_description_type": "Abstract"}]}, "item_8_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1007/s00411-017-0700-y", "subitem_relation_type_select": "DOI"}}]}, "item_8_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0301-634X", "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": "遠藤, 暁"}], "nameIdentifiers": [{"nameIdentifier": "494284", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "佐藤, 斉"}], "nameIdentifiers": [{"nameIdentifier": "494285", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "takuro, shimazaki"}], "nameIdentifiers": [{"nameIdentifier": "494286", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "kotani, kei"}], "nameIdentifiers": [{"nameIdentifier": "494287", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "須田, 充"}], "nameIdentifiers": [{"nameIdentifier": "494288", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "濱野, 毅"}], "nameIdentifiers": [{"nameIdentifier": "494289", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "梶本, 剛"}], "nameIdentifiers": [{"nameIdentifier": "494290", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "田中, 憲一"}], "nameIdentifiers": [{"nameIdentifier": "494291", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "星, 正治"}], "nameIdentifiers": [{"nameIdentifier": "494292", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "遠藤 暁", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494293", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "佐藤 斉", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494294", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "須田 充", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494295", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "濱野 毅", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494296", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "梶本 剛", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494297", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "田中 憲一", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494298", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "星 正治", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "494299", "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": "Determination of the thermal and epithermal neutron sensitivities of an LBO chamber", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Determination of the thermal and epithermal neutron sensitivities of an LBO chamber"}]}, "item_type_id": "8", "owner": "1", "path": ["1"], "permalink_uri": "https://repo.qst.go.jp/records/49014", "pubdate": {"attribute_name": "公開日", "attribute_value": "2018-05-15"}, "publish_date": "2018-05-15", "publish_status": "0", "recid": "49014", "relation": {}, "relation_version_is_last": true, "title": ["Determination of the thermal and epithermal neutron sensitivities of an LBO chamber"], "weko_shared_id": -1}
Determination of the thermal and epithermal neutron sensitivities of an LBO chamber
https://repo.qst.go.jp/records/49014
https://repo.qst.go.jp/records/49014e62e20a6-483f-4e1a-848f-84427bd63c20
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-05-15 | |||||
タイトル | ||||||
タイトル | Determination of the thermal and epithermal neutron sensitivities of an LBO chamber | |||||
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_6501 | |||||
資源タイプ | journal article | |||||
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 |
遠藤, 暁
× 遠藤, 暁× 佐藤, 斉× takuro, shimazaki× kotani, kei× 須田, 充× 濱野, 毅× 梶本, 剛× 田中, 憲一× 星, 正治× 遠藤 暁× 佐藤 斉× 須田 充× 濱野 毅× 梶本 剛× 田中 憲一× 星 正治 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | An LBO (Li2B4O7) walled ionization chamber was designed to monitor the epithermal neutron fluence in boron neutron capture therapy clinical irradiation. The thermal and epithermal neutron sensitivities of the device were evaluated using accelerator neutrons from the 9Be(d, n) reaction at a deuteron energy of 4 MeV (4 MeV d-Be neutrons). The response of the chamber in terms of the electric charge induced in the LBO chamber was compared with the thermal and epithermal neutron fluences measured using the gold-foil activation method. The thermal and epithermal neutron sensitivities obtained were expressed in units of pC cm2, i.e., from the chamber response divided by neutron fluence (cm-2). The measured LBO chamber sensitivities were 2.23 9 10-7 ± 0.34 9 10-7 (pC cm2) for thermal neutrons and 2.00 9 10-5 ± 0.12 9 10-5 (pC cm2) for epithermal neutrons. This shows that the LBO chamber is sufficiently sensitive to epithermal neutrons to be useful for epithermal neutron monitoring in BNCT irradiation. |
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書誌情報 |
Radiat Environ Biophys 巻 56, 号 3, p. 269-276, 発行日 2017-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0301-634X | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1007/s00411-017-0700-y |