Measurement of 14.54 MeV neutron induced reaction cross sections of Cr and Mn with covariance analysis

Imran Pasha; Rudraswamy Basavanna; Santhi Sheela Yerranguntla; Saraswatula Venkata Suryanarayana; Haladhara Naik; Cherumukku Vallabhan Midhun; Tarun Patel

doi:10.1515/ract-2019-3189

Article

Measurement of 14.54 MeV neutron induced reaction cross sections of Cr and Mn with covariance analysis

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Published/Copyright: March 2, 2020

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From the journal Radiochimica Acta Volume 108 Issue 9

Abstract

The ⁵⁰Cr(n,2n)⁴⁹Cr, ⁵²Cr(n,2n)⁵¹Cr, ⁵²Cr(n,p)⁵²V, ⁵⁵Mn(n,2n)⁵⁴Mn, ⁵⁵Mn(n,α)⁵²V and ⁵⁵Mn(n,γ)⁵⁶Mn reaction cross sections at the neutron energy of 14.54 ± 0.24 MeV were measured by using activation method along with off-line γ-ray spectrometry. The ²⁷Al(n,p)²⁷Mg monitor reaction was used for the ⁵²Cr(n,p)⁵²V and ⁵⁵Mn(n,α)⁵²V reactions, whereas the ¹⁹⁷Au(n,γ)¹⁹⁸Au monitor reaction for the ⁵⁵Mn(n,γ)⁵⁶Mn reaction. The ²⁷Al(n,α)²⁴Na monitor reaction was used for other three reactions. The neutron beam was generated from the T(d,n)⁴He reaction using the Purnima neutron generator at BARC, Mumbai. The covariance analysis for the uncertainties of reaction cross sections was performed by considering the correlations between different attributes. The present results were compared with the literature data, evaluated data of ENDF, ROSFOND, CENDL, JENDL and JEFF libraries as well as with the theoretical values based on TALYS-1.9 calculation.

Keywords: 50Cr(n,2n)49Cr; 52Cr(n,2n)51Cr; 52Cr(n,p)52V; 55Mn(n,2n)54Mn; 55Mn(n,γ)56Mn; 55Mn(n,α)52V reaction cross sections; 27Al(n,α)24Na; 27Al(n,p)27Mg and 197Au(n,γ)198Au monitor reactions; activation and γ-ray spectrometry; covariance analysis

Acknowledgement

The research was sponsored by Department of Atomic Energy & Board of Research in Nuclear Sciences (DAE-BRNS) through major research project (Sanction No. 36(6)/14/ 92/2014-BRNS/2727) and Directorate of Minority, Govt. of Karnataka. We would like to thank the staff of Purnima neutron generator, BARC, Mumbai for their excellent operation of accelerator.

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Received: 2019-07-22

Accepted: 2020-01-31

Published Online: 2020-03-02

Published in Print: 2020-09-25

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https://doi.org/10.1515/ract-2019-3189

Keywords for this article

50Cr(n,2n)49Cr; 52Cr(n,2n)51Cr; 52Cr(n,p)52V; 55Mn(n,2n)54Mn; 55Mn(n,γ)56Mn; 55Mn(n,α)52V reaction cross sections; 27Al(n,α)24Na; 27Al(n,p)27Mg and 197Au(n,γ)198Au monitor reactions; activation and γ-ray spectrometry; covariance analysis