Ibn Majah M, Chiadli A, Sudár S, Qaim S M
Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, Germany.
Appl Radiat Isot. 2001 Apr;54(4):655-62. doi: 10.1016/s0969-8043(00)00299-2.
Cross sections were measured for the 90Zr(n,alpha)87mSr, 90Zr(n,2n)89m,gZr, 91Zr(n,p)91mY, 92Zr(n,p)92Y, 94Zr(n,alpha)91Sr and 96Zr(n,2n)95Zr reactions over the neutron energy range of 11.4 to 12.4 MeV and for the 94Zr(n,p)94Y reaction from 9.2 to 12.4 MeV. Nuclear model calculations were performed up to 16MeV. The statistical model incorporating precompound effects reproduces excitation functions of the three major threshold reactions, namely (n,p), (n,alpha) and (n,2n), quite well. Spectrum averaged cross sections were measured using a thick target Be(d,n) neutron field at Ed = 14 MeV. For the same neutron field averaged reaction cross sections were deduced using the excitation functions measured in this work as well as those given in the ENDF/B-VI, JEF-2, JENDL-3.2, BROND and ADL-3 data files. A comparison of the experimental and deduced integral data helped validating the differential data.
在11.4至12.4 MeV的中子能量范围内，测量了90Zr(n,α)87mSr、90Zr(n,2n)89m,gZr、91Zr(n,p)91mY、92Zr(n,p)92Y、94Zr(n,α)91Sr和96Zr(n,2n)95Zr反应的截面，以及在9.2至12.4 MeV范围内94Zr(n,p)94Y反应的截面。进行了高达16 MeV的核模型计算。包含预复合效应的统计模型能很好地再现三个主要阈反应，即(n,p)、(n,α)和(n,2n)的激发函数。使用Ed = 14 MeV的厚靶Be(d,n)中子场测量了谱平均截面。对于相同的中子场，利用本工作中测量的激发函数以及ENDF/B-VI、JEF-2、JENDL-3.2、BROND和ADL-3数据文件中给出的激发函数推导出平均反应截面。实验数据与推导的积分数据的比较有助于验证微分数据。
