NUCLEAR TECHNIQUES, Volume. 46, Issue 8, 080002(2023)

Nuclear astrophysics research based on HI-13 tandem accelerator

Jiayinghao LI, Yunju LI*, Zhihong LI, Youbao WANG, Yangping SHEN, Bing GUO, and Weiping LIU
Author Affiliations
  • China Institution of Atomic Energy, Beijing 102413, China
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    Figures & Tables(18)
    Radioactive secondary beam line in HI-13 tandem accelerator
    Typical inverse kinematics experiment setup for radioactive beam[4]
    Angular distribution of 7Be(d, n)8B transfer reaction and DWBA fitting results[2]
    Comparison between astrophysical S-factor of 13N(p, γ)14O obtained by Nuclear Astrophysics Research Group and other results[3]
    Angular distribution of 8Li(d, p)9Li reaction and four DWBA results (a) and the astrophysics reaction rate of 8Li(n, γ)9Li (b)[4]
    Comparison between the angular distribution of 1H(6He, 6Li)n reaction and different DWBA results[21]
    Exciting function of 13N+p elastic resonance scattering and results analyzed by R-matrix[23]
    Exciting function of 17F+p elastic resonance scattering and results analyzed by R-matrix[25]
    Q3D magnetic spectrometer
    Two-dimensional position-sensitive X4 silicon detector array
    Angular distribution of 13C(7Li, 6He)14N reaction producing 14N ground state and the first excited state — the DWBA results reproduced the experimental data well[29]
    Angular distribution of 13C(9Be, 8Li)14N reaction and four sets of theoretical calculation results[30]
    Effect spectrum and background spectrum of 25Mg(7Li, 6He)26Al reaction[32]
    Angular distribution and calculation results of 15N(7Li, 6Li)16N reaction[33]
    Comparison of results of astrophysical reaction rates of 13C(α, n)16O[42]
    Astrophysical SE2 factor of 12C(α, γ)16O[52]The data points represent the results of direct measurement (the uncertainty is 56%), the solid line represents the result of considering the data of 16O ground state ANC (the uncertainty is reduced to 10%), and, compared with the latest value recommended by RMP (dashed line)[53], the new results increase by 55%.
    Relationship between the black hole mass and the initial mass of the He core of a star, which finally forms the black hole (a), and data of black hole mass measured by LIGO and Virgo (b)[54]. In the Fig.(a), the point and dashed line below are, respectively, the upper and lower limits based on the present work, and the point and dashed line above are, respectively, the upper and lower limits based on the latest review of reaction rates. There is an obvious difference between the two results.
    • Table 1. Radioactive nuclear beams produced by GIRAFFE

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      Table 1. Radioactive nuclear beams produced by GIRAFFE

      束流

      Beams

      产生反应

      Producing reaction

      能量±半宽

      Energy±half-width / MeV

      纯度

      Purity / %

      强度

      Intensity / pps

      6He2H(7Li, 6He)3He37.3±0.599450
      7Be1H(7Li, 7Be)n30.8±1.399900
      8Li2H(7Li, 8Li)p40.0±0.5882 000
      10C1H(10B, 10C)n55.9±3.596200
      11C1H(11B, 11C)n63.4±2.7801 000
      13N2H(12C, 13N)n57.8±2.1921 200
      15O2H(14N, 15O)n66.0±3.691800
      17F2H(16O, 17F)n76.1±3.7902 000
      18F3He(16O, 18F)p75.7±2.285800
      19Ne4He(16O, 19Ne)p56.6±3.447120
      3He(19F, 19Ne)3H68.6±3.84270
      22Na4He(19F, 22Na)n52.9±1.957100
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    Jiayinghao LI, Yunju LI, Zhihong LI, Youbao WANG, Yangping SHEN, Bing GUO, Weiping LIU. Nuclear astrophysics research based on HI-13 tandem accelerator[J]. NUCLEAR TECHNIQUES, 2023, 46(8): 080002

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    Paper Information

    Category: Research Articles

    Received: Jun. 21, 2023

    Accepted: --

    Published Online: Sep. 19, 2023

    The Author Email:

    DOI:10.11889/j.0253-3219.2023.hjs.46.080002

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