Thermal-neutron cross sections and resonance integrals of 138Ba and 141Pr using Am-Be neutron source

被引：9

作者：

Panikkath, Priyada ^{[1
]}

Mohanakrishnan, P. ^{[1
]}

机构：

[1] Manipal Univ, Manipal Ctr Nat Sci, Karnataka 576104, India

来源：

EUROPEAN PHYSICAL JOURNAL A | 2016年 / 52卷 / 09期

关键词：

ACTIVATION-ANALYSIS; NUCLEAR-DATA; SPECTRUM; REACTOR; ENDF/B-VII.1; COVARIANCES; MONITOR; ER;

D O I：

10.1140/epja/i2016-16276-9

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The thermal-neutron capture cross sections and resonance integrals of Ba-138(n,gamma) Ba-139 and Pr-141(n,gamma)Pr-142 were measured by activation method using an isotopic Am-Be neutron source. The estimations were with respect to that of Mn-55(n,gamma)Mn-56 and Au-197(n,gamma)Au-198 reference monitors. The measured thermal-capture cross section of Ba-138 with respect to Mn-55 is 0.410 +/- 0.023 b and with respect to Au-197 is 0.386 +/- 0.019 b. The measured thermal-capture cross section of Pr-141 with respect to Mn-55 is 11.36 +/- 1.29 b and with respect to Au-197 is 10.43 +/- 1.14 b. The resonance integrals for Ba-138 are 0.380+/-0.033 b (Mn-55) and 0.364+/-0.027 b (Au-197) and for Pr-141 are 21.05+/-2.88 b (Mn-55) and 15.27+/-1.87 b (Au-197). The comparison between the present measurements and various reported values are discussed. The cross sections corresponding to the selected isotopes are measured using an Am-Be source facility for the first time.

引用

页数：8

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