Neutron and gamma-ray source-term characterization of AmBe sources in Osaka University (The 12th International Conference on Radiation Shielding (ICRS-12) and the 17th Topical Meeting of the Radiation Protection and Shielding Division of ANS (RPSD-2012)) -- (Source Term Measurement and Evaluation)
Neutron and gamma-ray source-term characterization of AmBe sources in Osaka University (The 12th International Conference on Radiation Shielding (ICRS-12) and the 17th Topical Meeting of the Radiation Protection and Shielding Division of ANS (RPSD-2012)) -- (Source Term Measurement and Evaluation)
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大阪大学AmBe源的中子和伽马射线源项表征（第12届国际辐射屏蔽会议（ICRS-12）和第17届ANS辐射防护和屏蔽部门专题会议（RPSD-2012））--
DOI：
10.15669/pnst.4.345
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
H. Miyamaru
中科院分区：
文献类型：
--
作者：
I. Murata;Iehito Tsuda;R. Nakamura;Shoko Nakayama;M. Matsumoto;H. Miyamaru
c热/外热柱在大阪大学的OKTAVIAN设施中建造，用于BNCT的基础研究。为了表征柱的特性，测量了柱中用作中子源的AmBe源发射的中子的光谱和强度以及伽马射线的强度。中子用箔活化和多箔活化技术测量，伽马射线用HpGe探测器直接测量。测得的中子绝对强度为2.4E6 n/秒。测量的中子谱与先前的结果相当一致。伽马射线强度为1.8E6光子/秒，略小于中子。测量数据用于对BNCT进行的各种实验进行归一化。
c Thermal / epi-thermal columns were constructed in the OKTAVIAN facility of Osaka University for basic studies of BNCT. For characterization of the columns, the spectrum and intensity of neutrons and the intensity of gamma-rays emitted from the AmBe sources used in the columns as a neutron source were measured. Neutrons were measured with the foil activation and multi-foil activation techniques, and gamma-rays were measured directly with an HpGe detector. The measured absolute intensity of neutrons is 2.4E6 n/sec. The measured neutron spectrum was fairly consistent with the previous result. The gamma-ray intensity was 1.8E6 photons/sec, which a little smaller than that of neutrons. The measured data are used for normalization of various experiments carried out for BNCT.