학술논문
Measurements of 152 Gd(p,γ)153 Tb and 152 Gd(p,n)152 Tb reaction cross sections for the astrophysical γ process.
Document Type
Article
Author
Source
Subject
*NUCLEAR cross sections
*RADIOISOTOPES
*ACTIVATION energy
*PROTON beams
*ALUMINUM foil
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Language
ISSN
0556-2813
Abstract
The total cross sections for the 152Gd(p,γ)153Tb and 152Gd(p,n)152Tb reactions have been measured by the activation method at effective center-of-mass energies 3.47≤Ec.m.eff≤7.94 MeV and 4.96≤Ec.m.eff≤7.94 MeV, respectively. The targets were prepared by evaporation of 30.6% isotopically enriched Gd152 oxide on aluminum backing foils, and bombarded with proton beams provided by a cyclotron accelerator. The cross sections were deduced from the observed γ-ray activity, which was detected off-line by an HPGe detector in a low background environment. The results are presented and compared with predictions of statistical model calculations. This comparison supports a modified optical proton+152Gd potential suggested earlier. [ABSTRACT FROM AUTHOR]