• High Power Laser and Particle Beams
  • Vol. 36, Issue 12, 126001 (2024)
Li An, Jun Xiao*, Xinhua Wang, Lei Xie..., Li Jiang, Jiecheng Yang, Haiping Guo and Zijie Han|Show fewer author(s)
Author Affiliations
  • Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, China
  • show less
    DOI: 10.11884/HPLPB202436.240320 Cite this Article
    Li An, Jun Xiao, Xinhua Wang, Lei Xie, Li Jiang, Jiecheng Yang, Haiping Guo, Zijie Han. Calibration of 6Li atomic number of lithium glass detector[J]. High Power Laser and Particle Beams, 2024, 36(12): 126001 Copy Citation Text show less
    Flow chart for calibrating the number of 6Li
    Fig. 1. Flow chart for calibrating the number of 6Li
    Schematic diagram of the measurement layout for calibrating the number of 6Li
    Fig. 2. Schematic diagram of the measurement layout for calibrating the number of 6Li
    Variation of average neutron flux with time
    Fig. 3. Variation of average neutron flux with time
    Schematic diagram of the detector structure
    Fig. 4. Schematic diagram of the detector structure
    Lithium glass scintillation detector
    Fig. 5. Lithium glass scintillation detector
    Electronic block diagram of measurement system
    Fig. 6. Electronic block diagram of measurement system
    Pulse height spectra for the 6Li and 7Li glasses under 32.36 meV neutron irradiation in the M5 channel of the reactor
    Fig. 7. Pulse height spectra for the 6Li and 7Li glasses under 32.36 meV neutron irradiation in the M5 channel of the reactor
    Source neutron spectrum and corresponding 6Li (n,α) T reaction cross section
    Fig. 8. Source neutron spectrum and corresponding 6Li (n,α) T reaction cross section
    No.scatterer6Li (n,α) T reaction rate197Au(n,γ) 198Au reaction rate
    1without scatter5.36×10−239.85×10−24
    2cadmium sleeve5.36×10−239.85×10−24
    3cadmium sleeve\sample holder5.36×10−239.85×10−24
    4cadmium sleeve\sample holder\air4.99×10−239.50×10−24
    5cadmium sleeve\sample holder\air\neutron absorbing cavity4.99×10−239.50×10−24
    6cadmium sleeve\sample holder\air\neutron absorbing cavity\3D adjustable platform base4.99×10−239.50×10−24
    7ratio between reaction rates without and with scatterers93.10%93.12%
    Table 1. Influence of different scatterers on the experiment
    No.item of uncertaintycoefficientrelative uncertainty/%
    1tritium production reaction rate nt1.180.41
    2the activation reaction rate n1.181.68
    3 counting rate of the beam monitor Nm11.181.00
    4 counting rate of the beam monitor Nm21.180.02
    5 microscopic cross-section of 197Au(n,γ) 198Au σ1.180.14
    6 microscopic cross-section of 6Li(n, T)4He σT1.000.51
    7 number of Au atom N1971.180.24
    8detector cross-sectional area S0.181.00
    9neutron beam profile density uniformity k1.180.80
    Table 2. List of uncertainty items
    Li An, Jun Xiao, Xinhua Wang, Lei Xie, Li Jiang, Jiecheng Yang, Haiping Guo, Zijie Han. Calibration of 6Li atomic number of lithium glass detector[J]. High Power Laser and Particle Beams, 2024, 36(12): 126001
    Download Citation