摘要:
用^93Nb(n,2n)^92mNb和^90Zr(n,2n)^89m+gZr截面比法测定中子能量,以^93Nb(n,2n)^92mNb反应截面作中子注量标准,用活化法测量了13.5-14.6MeV中子引起的^89Y(n,2n)^88Y的反应截面值。由(13.5±0.3),(14.1±0.2),(14.6±0.3)MeV中子引起的^89Y(n,2n)^88Y反应截面值分别为(759±42),(835±42)和(958±53)mb。Cross section for (n, 2n) reaction on Yttrium have been measured at energy of 14 MeV neutrons from H(d, n)He by using activation technique. The ^93Nb(n, 2n)^92mNb reaction was used to monitor the neutron fluence, HPGe detector was used to detect the γ-rays. The cross section of ^89Y (n, 2n)^88Y reaction are 759 ± 42, 835 ±42, 958 ±53 mb for neutron energy 13.5 ±0.3, 14.1±0.2, 14.6 ±0.3 MeV, respectively.
关键词:
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钇 /
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快中子 /
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反应截面 /
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活化法 /
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放射性活度
Abstract:
Cross section for (n, 2n) reaction on Yttrium have been measured at energy of 14 MeV neutrons from H(d, n)He by using activation technique. The ^93Nb(n, 2n)^92mNb reaction was used to monitor the neutron fluence, HPGe detector was used to detect the γ-rays. The cross section of ^89Y (n, 2n)^88Y reaction are 759 ± 42, 835 ±42, 958 ±53 mb for neutron energy 13.5 ±0.3, 14.1±0.2, 14.6 ±0.3 MeV, respectively.