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• Material Type: 文書・図像類
• Title: None
• Author/Editor: *
• Author Heading: *
• Publication Date: 1974-12
• Publication Date (W3CDTF): 1974-12
• Alternative Title: Performance of fuel failure detection system in sodium in-pile loop experiments -5th to 10th sodium circulation experiments
• Periodical title: PNC TN251 74-31
• Text Language Code: eng
• Target Audience: 一般
• Note (General): Performance of four different types of fuel failure detection systems has been studied using a sodium in-pile loop located in Japan research reactor 2, sodium of 8.5-liters circulates throughan irradiation section (500 c), a main-cooler (400 c), an expansion tank (350 c), an electromagnetic pump, and a main-heater at a flow rate of 3-liters/min. In the irradiation section, fourmetallic uranium plates (20\%-enriched) of a total amount of U-235 of 9.18-g have been irradiated at a thermal neutron detector consisting of a BF3-counter system in a graphite moderator (50-cmx50-cmx80-cm) detects delayed neutrons from fission products in the expansion tank. The sodium travel time from the irradiation section to the expansion tank was 23.1-sec. At a sodium flow rate of 3-liters/min. Helium cover gas over the sodium in the tankcarries gaseous fission products, such as Kr and Xe, to aprecipitator (The plessey co.,ltd.,mark xi) by which beta-rays from Rb-88 and Cs-188 collected on a precipitation-wire are detecte; None
• Source: /PNC-TN251-74-31.pdf （fulltext）; https://jopss.jaea.go.jp/pdfdata/PNC-TN251-74-31.pdf
• Access Restrictions: 限定公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 日本原子力研究開発機構 : JOPSS:JAEA Originated Papers Searching System

• Summary, etc.: Performance of four different types of fuel failure detection systems has been studied using a sodium in-pile loop located in Japan research reactor 2...