Tantalum, Titanium, and Zirconium Neutron Total Cross-Section Measurements from 0.4 to 25 MeV

被引:2
|
作者
Rapp, M. J. [1 ]
Barry, D. P. [1 ]
Leinweber, G. [1 ]
Block, R. C. [1 ]
Epping, B. E. [1 ]
Trumbull, T. H. [1 ]
Danon, Y. [2 ]
机构
[1] Naval Nucl Lab, POB 1072, Schenectady, NY 12301 USA
[2] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, 110 8th St, Troy, NY 12180 USA
关键词
Cross section; transmission; tantalum; titanium; zirconium; RESONANCE PARAMETERS; BERYLLIUM;
D O I
10.1080/00295639.2019.1570750
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
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.
引用
收藏
页码:903 / 915
页数:13
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