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The measurement of the 6Li(n, t)4He reaction cross-section in the energy range of 4.25–7.50 MeV

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Abstract

The measurement of the total cross-section of the 6Li(n,t)4He reaction was carried out over the energy range of 4.25–7.50 MeV by a time-of-flight method relative to the cross-section of the 235U fission. The Cs2LiYCl6:Ce based scintillation detector was used as a lithium containing target. The scintillation detector was placed in an axially symmetrical geometry relative to a monitor fission chamber containing 235U layers. The pulsed quasi-monoenergetic neutron beam from the 2H(d,n)3He reaction was used as a neutron source. The total systematic uncertainty in the experiment was 4.6–6.7% with the statistical uncertainty of 2.0–3.7%. The obtained data do not support the evaluated cross-section of the 6Li(n,t)4He reaction from the ENDF-B/VIII.0 library. At the same time, the average difference between the evaluated cross-section from the JENDL-5.0 library and the experimental data obtained in this work also exceeds the total systematic uncertainty of the measurements.

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Data Avalability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The measured cross-sections of the 6Li(n,t)4He reaction are displayed in Fig. 6 and numerical values are available upon request.]

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Acknowledgements

The authors would like to thank Prof. Alexander Gurbich for the assistance in preparing the publication.

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The authors report that the work was carried out without funding.

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Authors and Affiliations

  1. Institute for Physics and Power Engineering, Experimental Nuclear Physics Department, Bondarenko Sq. 1, Obninsk, 249033, Russian Federation

    P. S. Prusachenko & T. L. Bobrovskiy

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  1. P. S. Prusachenko
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  2. T. L. Bobrovskiy
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Correspondence to P. S. Prusachenko.

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Communicated by Aurora Tumino.

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Prusachenko, P.S., Bobrovskiy, T.L. The measurement of the 6Li(n, t)4He reaction cross-section in the energy range of 4.25–7.50 MeV. Eur. Phys. J. A 60, 12 (2024). https://doi.org/10.1140/epja/s10050-024-01236-3

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