测量能量范围为 0.3-500 兆电子伏的 237Np 核的中子诱发裂变截面

IF 1.4 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2024-11-01 DOI:10.1134/S0021364024602987

A. S. Vorobyev, A. M. Gagarski, O. A. Shcherbakov, L. A. Vaishnene, A. M. Tyagelskaya, N. M. Olkhovich, A. L. Barabanov

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引用次数: 0

摘要

利用国家研究中心库尔恰托夫研究所彼得堡核物理研究所的 GNEIS 中子复合体飞行时间光谱仪，测量了 237Np 核在 0.3-500 MeV 中子能量范围内的中子诱发裂变截面。相对于 235U(n,f)裂变截面，对 237Np(n,f)裂变截面进行了测量，并通过低压位置敏感多线比例计数器对裂变碎片进行了检测。所获得的数据已与以前的实验结果和各种已评估数据库的估计数据进行了比较。

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Measurement of the Cross Section for the Neutron-Induced Fission of 237Np Nuclei in the Energy Range of 0.3–500 MeV

The cross section for the neutron-induced fission of ²³⁷Np nuclei in the neutron energy range of 0.3–500 MeV has been measured using the time-of-flight spectrometer of the GNEIS neutron complex at the Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute. The ²³⁷Np(n, f) fission cross section has been measured with respect to the ²³⁵U(n, f) fission cross section and fission fragments have been detected by low-pressure position-sensitive multiwire proportional counters. The data obtained have been compared to the previous experimental results and to estimates from various evaluated data libraries.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.