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首页> 外文期刊>Physical review, C >Neutron-induced fission cross section of Np-237 in the keV to MeV range at the CERN n_TOF facility
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Neutron-induced fission cross section of Np-237 in the keV to MeV range at the CERN n_TOF facility

机译:中子诱导的NP-237在CERN N_TOF设施的KEV中的NP-237裂变截面

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摘要

The neutron-induced fission cross section of Np-237 was experimentally determined at the high-resolution and high-intensity facility n_TOF, at CERN, in the energy range 100 keV to 9 MeV, using the U-235(n, f) and U-238(n, f) cross section standards below and above 2 MeV, respectively. A fast ionization chamber was used in order to detect the fission fragments from the reactions and the targets were characterized as far as their mass and homogeneity are concerned by means of a spectroscopy and Rutherford backscattering spectroscopy respectively. Theoretical calculations within the Hauser-Feshbach formalism have been performed, employing the EMPIRE code, and the model parameters were tuned in order to successfully reproduce the experimental fission cross-sectional data and simultaneously all the competing reaction channels.
机译:使用U-235(N,F)和 U-238(n,f)横截面标准分别低于2 mev。 使用快速电离室以检测来自反应的裂变片段,并且其特征在于它们的质量和均匀性地通过光谱学和Rutherford反向散射光谱涉及。 已经执行了Hauser-Feshbach形式主义内的理论计算,采用帝国代码,并且调整了模型参数,以便成功再现实验裂变横截面数据并同时所有竞争反应通道。

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