Measurement and covariance analysis of 140Ce(n,2n)139Ce and 142Ce(n,2n)141Ce reactions with the neutron energy of 13.5 MeV

被引：0
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作者：
H. B. Sachhidananda
S. R. Manohara
A. M. Sunitha
Imran Pasha
B. Rudraswamy
S. V. Suryanarayana
Haladhara Naik
Meghna Karkera
Y. S. Sheela
Manjunatha Prasad
机构：
[1] Siddaganga Institute of Technology (Affiliated to Visvesvaraya Technological University,Department of Physics
[2] Belgaum),Department of Physics
[3] Bangalore University,Nuclear Physics Division
[4] Bhabha Atomic Research Center,Radio Chemistry Division
[5] Bhabha Atomic Research Center,Department of Data Science
[6] Manipal Academy of Higher Education,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2020年 / 325卷
关键词：
Ce(n,2n); Ce and ; Ce(n,2n); Ce reactions; Cross section; Activation method; Off-line γ-ray spectroscopy; H(d,n); He reaction neutron; Co-variance analysis; TALYS-1.95; EMPIRE-3.2;
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学科分类号：
摘要：
The (n,2n) reaction cross sections of cerium isotopes have been experimentally measured at the neutron energy of 13.50 ± 0.15 MeV by using the method of activation and off-line γ-ray spectroscopy. The neutron energy was obtained from the D-T reaction using the Purnima Neutron Generator at BARC. The natCe sample was irradiated along with the gold and indium monitor foils. The cross sections of 140Ce(n,2n)139Ce and 142Ce(n,2n)141Ce reactions were measured by using both the gold and indium as a monitor and then collapsed to get the best values of reactions cross sections. The uncertainties in the measured cross sections of 140Ce(n,2n)139Ce and 142Ce(n,2n)141Ce reactions were determined using covariance analysis by considering uncertainties in various attributes. The measured values from the present work were compared with the literature data based on EXFOR compilation, evaluated data from different libraries and theoretically calculated values from TALYS-1.95 and EMPIRE-3.2.
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页码：885 / 892
页数：7
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