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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.

IMPACT FACTOR 2018: 1.339

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.333
Source Normalized Impact per Paper (SNIP) 2018: 0.720

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Volume 106, Issue 11


Measurement and covariance analysis of 59Co(n, 2n)58Co reaction cross sections at the effective neutron energies of 11.98 and 15.75 MeV

Santhi Sheela Yerraguntla / Haladhara Naik / Manjunatha Karantha / Srinivasan Ganesan / Suryanarayana Venkata Saraswatula / Sreekumaran Narayana Pillai Nair
Published Online: 2018-07-14 | DOI: https://doi.org/10.1515/ract-2018-2937


The 59Co(n, 2n)58Co reaction cross sections relative to the cross sections of the 115In(n, n′)115mIn reaction have been measured at the effective neutron energies of 11.98 and 15.75 MeV by using activation and off-line γ-ray spectrometric technique. Neutron beam used in the present experiment was generated from the 7Li(p, n)7Be reaction with the proton energies of 14 and 18 MeV at the 14UD BARC-TIFR Pelletron facility, Mumbai. We also present the covariance information by taking into account the sources of error and the correlations between the attributes influencing the measurements. The 59Co(n, 2n)58Co reaction cross sections from the present work are then compared with the values from different evaluated nuclear data libraries. The micro-correlation technique suggested by Smith was modified to generate the covariance matrix for the measurements of reaction cross sections as the efficiencies of detector for the sample and monitor are correlated.

Keywords: 59Co(n, 2n)58Co cross section; neutron activation; off-line γ-ray spectrometry; EXFOR; IRDFF-1.05; evaluated data libraries; covariance analysis


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About the article

Received: 2018-02-06

Accepted: 2018-05-30

Published Online: 2018-07-14

Published in Print: 2018-11-27

Citation Information: Radiochimica Acta, Volume 106, Issue 11, Pages 877–884, ISSN (Online) 2193-3405, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1515/ract-2018-2937.

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