High Power Laser and Particle Beams, Volume. 36, Issue 8, 086001(2024)
Similarity analysis applied to nuclear criticality accident alarm systems
Figures & Tables(16)
Fig. 2. XY view of varied position of neutron source for cases Geo11-111 and Geo21-211
Fig. 3. XZ view of varied position of neutron source for cases GeoH1-5
Fig. 4. Heat map of similarity coefficients between cases Geo11-111 Geo21-211
Fig. 6. Heat map of similarity coefficients between cases DS, Det1, and Det2
Fig. 8. Energy spectrum of neutron source in cases DS, ES1, and ES2
Fig. 9. Heat map of similarity coefficients between cases DS and ES1-4
Fig. 10. Heat map of similarity coefficients between cases DS and M1-4
Fig. 12. Similarity coefficient between cases DS and virtual equipment room model
Table 1. Dimensions of case DS
View tableView in ArticleTable 1. Dimensions of case DS
x-coordinate range/cm y-coordinate range/cm z-coordinate range/cm inside of wall −500～+500 −500～+500 −500～+500 outside of wall −600～+600 −600～+600 −600～+600 tunnel −5～+5 530～600 −5～+5 detector −5～+5 530～540 −5～+5
Table 2. Dimensions of the storage device and the neutron source for case DS
View tableView in ArticleTable 2. Dimensions of the storage device and the neutron source for case DS
x-coordinate of axis/cm y-coordinate of axis/cm z-coordinate range/cm radius/cm storage device 0 434.5 −40.5～+40.5 45.5 neutron source 0 323.5 −40.5～+40.5 45.5
Table 3. Dimensions of the virtual equipment room model
View tableView in ArticleTable 3. Dimensions of the virtual equipment room model
x-coordinate range/cm y-coordinate range/cm z-coordinate range/cm inside of wall 0～+675 0～+900 −600～+600 outside of wall −150～+825 0～+1050 −800～+750
Table 4. Most important contributions from varied reactions to similarity coefficients between cases DS and the virtual equipment room model
View tableView in ArticleTable 4. Most important contributions from varied reactions to similarity coefficients between cases DS and the virtual equipment room model
nuclide-reaction contributions to similarity coefficient a b c d e g h i l H-inelastic scattering 4.71×10−1 4.17×10−1 4.16×10−1 4.03×10−1 4.31×10−1 4.15×10−1 4.50×10−1 4.15×10−1 4.01×10−1 28Si-(n, γ) 2.58×10−1 2.64×10−1 2.72×10−1 2.69×10−1 2.67×10−1 2.71×10−1 2.60×10−1 2.72×10−1 2.70×10−1 58Ni-(n, γ) 1.55×10−1 1.59×10−1 1.63×10−1 1.61×10−1 1.60×10−1 1.62×10−1 1.56×10−1 1.64×10−1 1.62×10−1 16O-elastic scattering −3.92×10−2 −4.23×10−2 −4.16×10−2 −4.38×10−2 −4.17×10−2 −4.18×10−2 −4.09×10−2 −4.40×10−2 −4.15×10−2 39K-(n, γ) 2.01×10−2 2.06×10−2 2.12×10−2 2.10×10−2 2.08×10−2 2.11×10−2 2.03×10−2 2.12×10−2 2.11×10−2 40Ca-(n, γ) 8.28×10−3 8.47×10−3 8.73×10−3 8.62×10−3 8.56×10−3 8.67×10−3 8.34×10−3 8.73×10−3 8.67×10−3 H-(n, γ) 7.97×10−3 8.14×10−3 8.39×10−3 8.29×10−3 8.22×10−3 8.34×10−3 8.02×10−3 8.40×10−3 8.33×10−3 H-elastic scattering 5.33×10−3 5.93×10−3 5.91×10−3 5.95×10−3 5.65×10−3 5.83×10−3 5.67×10−3 5.94×10−3 6.22×10−3 27Al-(n, γ) 4.52×10−3 4.62×10−3 4.77×10−3 4.71×10−3 4.67×10−3 4.74×10−3 4.55×10−3 4.77×10−3 4.73×10−3
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Yuan Xu, Shihang Jiang, Haifeng Yang, Xuan Yi, Zeng Shao. Similarity analysis applied to nuclear criticality accident alarm systems[J]. High Power Laser and Particle Beams, 2024, 36(8): 086001
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Received: Oct. 19, 2023
Accepted: May. 8, 2024
Published Online: Aug. 8, 2024
The Author Email: Yang Haifeng (yanghf@cnpe.cc)
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