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Ratios of the cross sections for the 10B(n, α)7Li reaction to the 6Li(n, t)4He reaction

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Abstract

The ratios of the differential and angle-integrated cross sections for the 10B(n, α)7Li reaction (including (n, α), (n, α0) and (n, α1)) to the 6Li(n, t)4He reaction are obtained by re-analyzing our previous measurement data to avoid the uncertainty of the neutron fluences. Present results, with much smaller uncertainties and covering a large neutron energy region from 1.0 eV to several MeV, will be useful in the improvement of the neutron cross section standards. The normalized ratios of the differential and angle-integrated cross sections are in good agreement with the ratios calculated from the evaluation data in the ENDF/B-VIII.0 and JEFF-3.3 libraries. In the neutron energy region from 1.0 to 1.0 keV, the relative uncertainties of the present ratios are significantly reduced compared with those of our previous results of both the 10B(n, α)7Li and the 6Li(n, t)4He reactions. New measurements for the 10B(n, α)7Li reaction with higher precision are demanded, especially in the neutron energy region higher than 0.5 MeV where the relative uncertainties of the present ratios are dominated by those of the previous 10B(n, α)7Li cross sections which are larger than those of the 6Li(n, t)4He cross sections.

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Data availability statement

This manuscript has associated data in a data repository [Authors’ comment: The final results are presented in Appendix A in this paper. The origin data contains binary data of the signal waveforms from the detectors and it is too big to upload or deliver.]

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Acknowledgements

The authors are indebted to Dr. A. D. Carlson from National Institute of Standards and Technology of USA for his inspiration and helpful discussions. This work is financially supported by the National Natural Science Foundation of China (Grant no. 12075008) and the Key Laboratory of Nuclear Data foundation (6142A08200103).

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Authors and Affiliations

  1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, 100871, China

    Jie Liu, Haoyu Jiang & Guohui Zhang

  2. Institute of Materials, China Academy of Engineering Physics, Jiangyou, 621907, China

    Huaiyong Bai

Authors
  1. Jie Liu
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  2. Huaiyong Bai
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  3. Haoyu Jiang
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Corresponding author

Correspondence to Guohui Zhang.

Additional information

Communicated by Aurora Tumino.

Appendix A

Appendix A

See Tables 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10.

Table 1 The normalized ratios of the angle-integrated cross sections for the 10B(n, α)7Li reaction to the 6Li(n, t)4He reaction
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Table 2 The normalized ratios of the differential cross sections for the 10B(n, α)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 19.2, 26.9, 36.5, 46.7, 57.3°)
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Table 3 The normalized ratios of the differential cross sections for the 10B(n, α)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 68.0, 78.8, 90.3, 101.2, 112.0°)
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Table 4 The normalized ratios of the differential cross sections for the 10B(n, α)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 122.7, 133.2, 143.5, 153.1, 160.8°)
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Table 5 The normalized ratios of the differential cross sections for the 10B(n, α0)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 19.2, 26.9, 36.5, 46.7, 57.3°)
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Table 6 The normalized ratios of the differential cross sections for the 10B(n, α0)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 68.0, 78.8, 90.3, 101.2, 112.0°)
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Table 7 The normalized ratios of the differential cross sections for the 10B(n, α0)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 122.7, 133.2, 143.5, 153.1, 160.8°)
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Table 8 The normalized ratios of the differential cross sections for the 10B(n, α1)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 19.2, 26.9, 36.5, 46.7, 57.3°)
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Table 9 The normalized ratios of the differential cross sections for the 10B(n, α1)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 68.0, 78.8, 90.3, 101.2, 112.0°)
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Table 10 The normalized ratios of the differential cross sections for the 10B(n, α1)7Li reaction to the 6Li(n, t)4He reaction in the laboratory reference system (θlab = 122.7, 133.2, 143.5, 153.1, 160.8°)
Full size table

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Liu, J., Bai, H., Jiang, H. et al. Ratios of the cross sections for the 10B(n, α)7Li reaction to the 6Li(n, t)4He reaction. Eur. Phys. J. A 59, 106 (2023). https://doi.org/10.1140/epja/s10050-023-00992-y

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