Measurement and covariance analysis of 232Th(n, 2n)231Th reaction cross sections at the effective neutron energies of 8.97 and 16.52 MeV

Meghna Karkera; Haladhara Naik; Sripathi Punchithaya; Manjunatha Prasad; Santhi Sheela Yeraguntla; Saraswatula Venkata Suryanarayana; Srinivasan Ganesan; Vibha Vansola; Rajnikanth Makhwana

doi:10.1007/s10967-018-6199-0

Measurement and covariance analysis of ²³²Th(n, 2n)²³¹Th reaction cross sections at the effective neutron energies of 8.97 and 16.52 MeV

Meghna Karkera, Haladhara Naik, Sripathi Punchithaya, Manjunatha Prasad, Santhi Sheela Yeraguntla, Saraswatula Venkata Suryanarayana, Srinivasan Ganesan, Vibha Vansola, Rajnikanth Makhwana

Department of Physics, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The 232Th(n, 2n)231Th reaction cross sections relative to the 232Th(n, f)⁹⁷Zr monitor reaction at the effective neutron energies of 8.97 and 16.52 MeV have been measured by using the activation and off-line γ-ray spectrometry. The neutron beams were generated from the 7Li(p,n)7Be reaction by using the proton beam energies of 11 and 18.8 MeV. Correction factors for the low energy neutrons were taken care by considering the thickness of sample and non mono-energetic neutrons. The covariance analysis in the uncertainty of the reaction cross section was carried out by using error propagation and micro-correlation technique. The present data were compared with the literature data, evaluated data and theoretical values based on TALYS-1.8 code.

Original language	English
Pages (from-to)	1893-1900
Number of pages	8
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	318
Issue number	3
DOIs	https://doi.org/10.1007/s10967-018-6199-0
Publication status	Published - 01-12-2018

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1007/s10967-018-6199-0

Cite this

Karkera, M., Naik, H., Punchithaya, S., Prasad, M., Yeraguntla, S. S., Suryanarayana, S. V., Ganesan, S., Vansola, V., & Makhwana, R. (2018). Measurement and covariance analysis of ²³²Th(n, 2n)²³¹Th reaction cross sections at the effective neutron energies of 8.97 and 16.52 MeV. Journal of Radioanalytical and Nuclear Chemistry, 318(3), 1893-1900. https://doi.org/10.1007/s10967-018-6199-0

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title = "Measurement and covariance analysis of 232Th(n, 2n)231Th reaction cross sections at the effective neutron energies of 8.97 and 16.52 MeV",

abstract = "The 232Th(n, 2n)231Th reaction cross sections relative to the 232Th(n, f)97Zr monitor reaction at the effective neutron energies of 8.97 and 16.52 MeV have been measured by using the activation and off-line γ-ray spectrometry. The neutron beams were generated from the 7Li(p,n)7Be reaction by using the proton beam energies of 11 and 18.8 MeV. Correction factors for the low energy neutrons were taken care by considering the thickness of sample and non mono-energetic neutrons. The covariance analysis in the uncertainty of the reaction cross section was carried out by using error propagation and micro-correlation technique. The present data were compared with the literature data, evaluated data and theoretical values based on TALYS-1.8 code.",

author = "Meghna Karkera and Haladhara Naik and Sripathi Punchithaya and Manjunatha Prasad and Yeraguntla, {Santhi Sheela} and Suryanarayana, {Saraswatula Venkata} and Srinivasan Ganesan and Vibha Vansola and Rajnikanth Makhwana",

note = "Funding Information: Acknowledgements The research work was supported by DAE-BRNS project (Sanction No. 36(6)/14/52/2014-BRNS/2708). The authors would like to thank the staff of BARC-TIFR Pelletron facility Publisher Copyright: {\textcopyright} 2018, Akad{\'e}miai Kiad{\'o}, Budapest, Hungary.",

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Karkera, M, Naik, H, Punchithaya, S, Prasad, M, Yeraguntla, SS, Suryanarayana, SV, Ganesan, S, Vansola, V & Makhwana, R 2018, 'Measurement and covariance analysis of ²³²Th(n, 2n)²³¹Th reaction cross sections at the effective neutron energies of 8.97 and 16.52 MeV', Journal of Radioanalytical and Nuclear Chemistry, vol. 318, no. 3, pp. 1893-1900. https://doi.org/10.1007/s10967-018-6199-0

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AU - Karkera, Meghna

AU - Naik, Haladhara

AU - Punchithaya, Sripathi

AU - Prasad, Manjunatha

AU - Yeraguntla, Santhi Sheela

AU - Suryanarayana, Saraswatula Venkata

AU - Ganesan, Srinivasan

AU - Vansola, Vibha

AU - Makhwana, Rajnikanth

N1 - Funding Information: Acknowledgements The research work was supported by DAE-BRNS project (Sanction No. 36(6)/14/52/2014-BRNS/2708). The authors would like to thank the staff of BARC-TIFR Pelletron facility Publisher Copyright: © 2018, Akadémiai Kiadó, Budapest, Hungary.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - The 232Th(n, 2n)231Th reaction cross sections relative to the 232Th(n, f)97Zr monitor reaction at the effective neutron energies of 8.97 and 16.52 MeV have been measured by using the activation and off-line γ-ray spectrometry. The neutron beams were generated from the 7Li(p,n)7Be reaction by using the proton beam energies of 11 and 18.8 MeV. Correction factors for the low energy neutrons were taken care by considering the thickness of sample and non mono-energetic neutrons. The covariance analysis in the uncertainty of the reaction cross section was carried out by using error propagation and micro-correlation technique. The present data were compared with the literature data, evaluated data and theoretical values based on TALYS-1.8 code.

AB - The 232Th(n, 2n)231Th reaction cross sections relative to the 232Th(n, f)97Zr monitor reaction at the effective neutron energies of 8.97 and 16.52 MeV have been measured by using the activation and off-line γ-ray spectrometry. The neutron beams were generated from the 7Li(p,n)7Be reaction by using the proton beam energies of 11 and 18.8 MeV. Correction factors for the low energy neutrons were taken care by considering the thickness of sample and non mono-energetic neutrons. The covariance analysis in the uncertainty of the reaction cross section was carried out by using error propagation and micro-correlation technique. The present data were compared with the literature data, evaluated data and theoretical values based on TALYS-1.8 code.

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