Development of monoenergetic neutron calibration fields between 8 keV and 15 MeV
Development of monoenergetic neutron calibration fields between 8 keV and 15 MeV
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开发 8 keV 至 15 MeV 之间的单能中子校准场
DOI：
10.1016/0168-9002(96)00190-8
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发表时间：
1996
影响因子：
1.4
通讯作者：
N. Hirakawa
中科院分区：
文献类型：
--
作者：
M. Baba;M. Takada;T. Iwasaki;S. Matsuyama;Takashi Nakamura;H. Ohguchi;T. Nakao;T. Sanami;N. Hirakawa
为了表征和校准中子剂量计和能谱仪，在 8 keV 至 15 MeV（8 和 27 keV、0.25、0.55、1.0、2.0、5.0 和 15 MeV）之间的八个能量点开发了单能中子校准场。单能中子通过 8 和 27 keV 的 Sc(p, n) 反应以及 0.25 和 15 MeV 之间的 7 Li(p, n)、T(p, n)、D(d, n) 和 T(d, n) 反应获得。小心地通过寄生反应和初级中子在靶上的散射来减少背景中子。采用飞行时间技术对中子能谱进行表征，并采用两种独立的方法测量中子注量，测量误差在±5%以内。该领域已成功应用于各种中子剂量计和能谱仪的校准和表征。
For characterization and calibration of neutron dosimeters and spectrometers, monoenergetic neutron calibration fields have been developed at eight energy points between 8 keV and 15 MeV (8 and 27 keV, 0.25, 0.55, 1.0, 2.0, 5.0 and 15 MeV). Monoenergetic neutrons are obtained by the Sc(p, n) reactions for 8 and 27 keV, and by the7Li(p, n), T(p, n), D(d, n) and T(d, n) reactions between 0.25 and 15 MeV. Care was taken to reduce background neutrons by parasitic reactions and the scattering of primary neutrons at the target. The neutron spectrum was characterized by the time-of-flight technique, and the neutron fluence was measured with two independent methods within ±5%. The field has been applied successfully for calibration and characterization of various neutron dosimeters and spectometers.