Tantalum, Titanium, and Zirconium Neutron Total Cross-Section Measurements from 0.4 to 25 MeV
Tantalum, Titanium, and Zirconium Neutron Total Cross-Section Measurements from 0.4 to 25 MeV
复制标题
0.4 至 25 MeV 的钽、钛和锆中子总截面测量
DOI：
10.1080/00295639.2019.1570750
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发表时间：
2019
影响因子：
1.2
通讯作者：
Y. Danon
中科院分区：
文献类型：
--
作者：
M. Rapp;D. Barry;G. Leinweber;R. Block;B. Epping;T. Trumbull;Y. Danon
利用伦斯勒理工学院Gaerttner线性加速器中心的电子直线加速器产生脉冲中子源，测量了0.4 ~ 25 MeV范围内钽、钛和锆的中子总截面。中子透射率测量采用飞行时间法，中子飞行路径约为100和250 m。较长的飞行路径、窄的中子脉冲宽度、快速的探测器响应、快速的电子设备和数据采集系统为测量提供了良好的能量分辨率。在大部分能量范围内，高信本比与低统计误差相结合，导致截面上的低不确定性。给出了结果，并与主要核数据评价进行了比较。每次测量都确定了中子总横截面可以重新评估的区域。这里提出的总截面测量可以帮助核数据评估者在未来的评估中改进中子总截面数据。
Abstract The electron linear accelerator housed in the Gaerttner Linear Accelerator Center at Rensselaer Polytechnic Institute was used to generate a pulsed neutron source to measure the neutron total cross section of tantalum, titanium, and zirconium from 0.4 to 25 MeV. Neutron transmission measurements were made using the time-of-flight method with neutron flight paths of approximately 100 and 250 m. The long flight paths combined with narrow neutron pulse widths, fast detector responses, fast electronics, and data collection system provide good energy resolution for the measurements. A high signal-to-background ratio through much of the energy range combined with low statistical errors resulted in low uncertainties on cross sections. The results are presented and compared with the major nuclear data evaluations. Each measurement identifies regions where the neutron total cross sections could be reevaluated. The total cross-section measurements presented here can help nuclear data evaluators improve neutron total cross-section data in future evaluations.
nELBE 光中子源处金和钽的中子总截面测量
DOI：
10.1140/epja/i2013-13137-1
发表时间：
2013
期刊：
The European Physical Journal A
影响因子：
--
作者：
R. Hannaske
通讯作者：
R. Hannaske