Neutron-induced activation cross-sections on natural cerium up to 20 MeV

被引：10

作者：

Luo, Junhua ^{[1
,2
]}

An, Li ^{[3
]}

Jiang, Li ^{[3
]}

机构：

[1] Hexi Univ, Inst Theoret Phys, Zhangye 734000, Peoples R China

[2] Hexi Univ, Sch Phys & Electromech Engn, Zhangye 734000, Peoples R China

[3] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 305卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Cerium; Neutron; Activation method; Cross section; Nuclear reaction; EXCITATION-FUNCTIONS; N; 2N REACTIONS; ALPHA REACTIONS; ENERGY-RANGE; P; ISOTOPES; REGION; RATIOS; 2N;

D O I：

10.1007/s10967-015-4049-x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Cross sections of (n,2n), (n,p), and (n,alpha) reactions on cerium isotopes have been measured in the neutron energy range of 13.5-14.8 MeV using the activation technique and a coaxial HPGe gamma-ray detector. Samples were activated along with Nb and Al monitor foils to determine the incident neutron flux. Data are reported for the following reactions: Ce-136(n,2n)Ce135m+g, Ce-140(n,2n)Ce-139m, Ce-140(n,2n)Ce-139g, Ce-140(n,2n)Ce139m+g, Ce-142(n,2n)Ce-141, Ce-140(n,p)La-140, Ce-142(n,p)La-142 and Ce-140(n,alpha)Ba-137m. The cross sections were also estimated with the TALYS-1.6 nuclear model code at neutron energies varying from the reaction threshold to 20 MeV. Results are also discussed and compared with corresponding values found in the literature.

引用

页码：691 / 700

页数：10

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