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

Karkera, Meghna and Yerraguntla, Santhi Sheela and Punchithaya, Sripathi K and Suryanarayana, Saraswatula Venkata and Karantha, Manjunatha Prasad and Naik, Haladhara and Ganesan, Srinivasan and Dhanu, Laxman Singh and Kumar, Rajeev and Deo, Kapil and Raj, Devesh and Patel, Tarun and Bishnoi, Saroj and Kannan, Umasankari (2019) Measurement and covariance analysis of 232Th(n, 2n) 231Th reaction cross section. Journal of Radioanalytical and Nuclear Chemistry. pp. 825-817. ISSN 0236-5731

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The 232Th(n, 2n) 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 frst 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 of-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 diferent neutron sources are then compared with the values of evaluated nuclear data fles 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.

Item Type: Article
Uncontrolled Keywords: 232Th(n, 2n) 231Th reaction cross section · Activation and of-line γ-ray spectrometric technique · Covariance analysis
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 23 Jun 2022 04:19
Last Modified: 23 Jun 2022 04:19

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