Measurement and covariance analysis of 232Th (n , 2 n) 231Th reaction cross section

Meghna Karkera, Santhi Sheela Yerraguntla, Sripathi Punchithaya, Saraswatula Venkata Suryanarayana, Manjunatha Prasad Karantha, Haladhara Naik, Srinivasan Ganesan, Laxman Singh Dhanu, Rajeev Kumar, Kapil Deo, Devesh Raj, Tarun Patel, Saroj Bishnoi, Umasankari Kannan

Research output: Contribution to journalArticle

Abstract

The 232Th (n , 2 n) 231Th reaction cross sections were measured at the neutron energies of 10.49 ± 0.29, 14.46 ± 0.26, 18.36 ± 0.24 MeV and 15.03 ± 0.003 MeV. For the first three energies, 7Li (p , n) reaction as a neutron source at the BARC-TIFR Pelletron accelerator facility was used. For the latter energy, 3H (d , n) neutron source using the PURNIMA neutron generator facility was used. The experiments were carried out using the activation method and off-line γ -ray spectrometric technique. Covariance information of various attributes of cross section was propagated to obtain the covariance matrix for the reaction cross sections. The experimental resuts obtained with reference to the two different neutron sources are then compared with the values of evaluated nuclear data files such as ENDF/B-VIII.0, JENDL 4.0, JEFF-3.2, ROSFOND-2010, TENDL-2017 and the theoretical values from TALYS-1.9 code.

Original languageEnglish
Pages (from-to)817-825
Number of pages9
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume322
Issue number2
DOIs
Publication statusPublished - 01-11-2019

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Neutron sources
Cross Reactions
Neutrons
Covariance matrix
Particle accelerators
Chemical activation
Information Storage and Retrieval
Experiments

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

Cite this

Karkera, Meghna ; Yerraguntla, Santhi Sheela ; Punchithaya, Sripathi ; Suryanarayana, Saraswatula Venkata ; Karantha, Manjunatha Prasad ; Naik, Haladhara ; Ganesan, Srinivasan ; Dhanu, Laxman Singh ; Kumar, Rajeev ; Deo, Kapil ; Raj, Devesh ; Patel, Tarun ; Bishnoi, Saroj ; Kannan, Umasankari. / Measurement and covariance analysis of 232Th (n , 2 n) 231Th reaction cross section. In: Journal of Radioanalytical and Nuclear Chemistry. 2019 ; Vol. 322, No. 2. pp. 817-825.
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abstract = "The 232Th (n , 2 n) 231Th reaction cross sections were measured at the neutron energies of 10.49 ± 0.29, 14.46 ± 0.26, 18.36 ± 0.24 MeV and 15.03 ± 0.003 MeV. For the first three energies, 7Li (p , n) reaction as a neutron source at the BARC-TIFR Pelletron accelerator facility was used. For the latter energy, 3H (d , n) neutron source using the PURNIMA neutron generator facility was used. The experiments were carried out using the activation method and off-line γ -ray spectrometric technique. Covariance information of various attributes of cross section was propagated to obtain the covariance matrix for the reaction cross sections. The experimental resuts obtained with reference to the two different neutron sources are then compared with the values of evaluated nuclear data files such as ENDF/B-VIII.0, JENDL 4.0, JEFF-3.2, ROSFOND-2010, TENDL-2017 and the theoretical values from TALYS-1.9 code.",
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Karkera, M, Yerraguntla, SS, Punchithaya, S, Suryanarayana, SV, Karantha, MP, Naik, H, Ganesan, S, Dhanu, LS, Kumar, R, Deo, K, Raj, D, Patel, T, Bishnoi, S & Kannan, U 2019, 'Measurement and covariance analysis of 232Th (n , 2 n) 231Th reaction cross section', Journal of Radioanalytical and Nuclear Chemistry, vol. 322, no. 2, pp. 817-825. https://doi.org/10.1007/s10967-019-06722-3

Measurement and covariance analysis of 232Th (n , 2 n) 231Th reaction cross section. / Karkera, Meghna; Yerraguntla, Santhi Sheela; Punchithaya, Sripathi; Suryanarayana, Saraswatula Venkata; Karantha, Manjunatha Prasad; Naik, Haladhara; Ganesan, Srinivasan; Dhanu, Laxman Singh; Kumar, Rajeev; Deo, Kapil; Raj, Devesh; Patel, Tarun; Bishnoi, Saroj; Kannan, Umasankari.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 322, No. 2, 01.11.2019, p. 817-825.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement and covariance analysis of 232Th (n , 2 n) 231Th reaction cross section

AU - Karkera, Meghna

AU - Yerraguntla, Santhi Sheela

AU - Punchithaya, Sripathi

AU - Suryanarayana, Saraswatula Venkata

AU - Karantha, Manjunatha Prasad

AU - Naik, Haladhara

AU - Ganesan, Srinivasan

AU - Dhanu, Laxman Singh

AU - Kumar, Rajeev

AU - Deo, Kapil

AU - Raj, Devesh

AU - Patel, Tarun

AU - Bishnoi, Saroj

AU - Kannan, Umasankari

PY - 2019/11/1

Y1 - 2019/11/1

N2 - The 232Th (n , 2 n) 231Th reaction cross sections were measured at the neutron energies of 10.49 ± 0.29, 14.46 ± 0.26, 18.36 ± 0.24 MeV and 15.03 ± 0.003 MeV. For the first three energies, 7Li (p , n) reaction as a neutron source at the BARC-TIFR Pelletron accelerator facility was used. For the latter energy, 3H (d , n) neutron source using the PURNIMA neutron generator facility was used. The experiments were carried out using the activation method and off-line γ -ray spectrometric technique. Covariance information of various attributes of cross section was propagated to obtain the covariance matrix for the reaction cross sections. The experimental resuts obtained with reference to the two different neutron sources are then compared with the values of evaluated nuclear data files such as ENDF/B-VIII.0, JENDL 4.0, JEFF-3.2, ROSFOND-2010, TENDL-2017 and the theoretical values from TALYS-1.9 code.

AB - The 232Th (n , 2 n) 231Th reaction cross sections were measured at the neutron energies of 10.49 ± 0.29, 14.46 ± 0.26, 18.36 ± 0.24 MeV and 15.03 ± 0.003 MeV. For the first three energies, 7Li (p , n) reaction as a neutron source at the BARC-TIFR Pelletron accelerator facility was used. For the latter energy, 3H (d , n) neutron source using the PURNIMA neutron generator facility was used. The experiments were carried out using the activation method and off-line γ -ray spectrometric technique. Covariance information of various attributes of cross section was propagated to obtain the covariance matrix for the reaction cross sections. The experimental resuts obtained with reference to the two different neutron sources are then compared with the values of evaluated nuclear data files such as ENDF/B-VIII.0, JENDL 4.0, JEFF-3.2, ROSFOND-2010, TENDL-2017 and the theoretical values from TALYS-1.9 code.

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U2 - 10.1007/s10967-019-06722-3

DO - 10.1007/s10967-019-06722-3

M3 - Article

AN - SCOPUS:85071447344

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SP - 817

EP - 825

JO - Journal of Radioanalytical Chemistry

JF - Journal of Radioanalytical Chemistry

SN - 0022-4081

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