NUCLEAR TECHNIQUES, Volume. 48, Issue 7, 070024(2025)
Generation methodology and preliminary testing of burnup library for mobile micro fast neutron nuclear power system
Figures & Tables(6)
Fig. 1. Processing flowchart of burnup library for micro fast neutron reactor
Fig. 2. Schematic cross-sectional diagram of the Megapower micro nuclear reactor
Fig. 3. Activation source intensity per unit mass of different stainless steel
Table 1. Comparison of nuclide components of nuclear fuel after irradiation 10 a
View tableView in ArticleTable 1. Comparison of nuclide components of nuclear fuel after irradiation 10 a
核素
Nuclides
原子密度
Atom density / atoms∙barn-1∙cm-1
相对偏差
Relative error / %
ORIGEN-S OpenMC 16O 4.66×10-2 4.66×10-2 0.00 238U 1.79×10-2 1.79×10-2 0.01 235U 5.25×10-3 5.25×10-3 -0.01 234U 5.39×10-5 5.39×10-5 0.00 239Pu 1.39×10-5 1.30×10-5 6.24 236U 9.64×10-6 9.23×10-6 4.46 134Xe 2.50×10-6 2.44×10-6 2.54 133Cs 2.14×10-6 2.08×10-6 2.78 138Ba 2.13×10-6 2.08×10-6 2.72 135Cs 2.10×10-6 2.04×10-6 3.04 139La 2.03×10-6 1.97×10-6 2.75 136Xe 2.03×10-6 1.99×10-6 1.91 94Zr 2.02×10-6 1.97×10-6 2.72 100Mo 2.02×10-6 1.96×10-6 2.95 96Zr 2.01×10-6 1.96×10-6 2.60 93Zr 1.99×10-6 1.94×10-6 2.46 99Tc 1.98×10-6 1.90×10-6 4.09 95Mo 1.96×10-6 1.91×10-6 2.78 140Ce 1.95×10-6 1.91×10-6 2.33 97Mo 1.92×10-6 1.85×10-6 3.57
Table 2. Comparison of nuclide components of inner stainless steel after irradiation 10 a
View tableView in ArticleTable 2. Comparison of nuclide components of inner stainless steel after irradiation 10 a
核素
Nuclides
原子密度
Atom density / atoms∙barn-1∙cm-1
相对偏差
Relative error / %
ORIGEN-S OpenMC 56Fe 5.04×10-2 5.06×10-2 -0.43 52Cr 1.39×10-2 1.34×10-2 3.64 58Ni 6.97×10-3 7.65×10-3 -8.90 54Fe 3.21×10-3 3.22×10-3 -0.43 60Ni 2.68×10-3 2.95×10-3 -8.90 53Cr 1.58×10-3 1.53×10-3 3.66 57Fe 1.16×10-3 1.17×10-3 -0.52 28Si 9.47×10-4 9.30×10-4 1.84 50Cr 7.23×10-4 6.97×10-4 3.66 54Cr 3.94×10-4 3.80×10-4 3.60 62Ni 3.72×10-4 4.08×10-4 -8.90 58Fe 1.55×10-4 1.56×10-4 -0.58
Table 3. Activation source intensity per unit mass of different stainless steel
View tableView in ArticleTable 3. Activation source intensity per unit mass of different stainless steel
能量
Energy / MeV
光子源强
Photon intensity / γ∙s-1∙g-1
316H 316Ti 304 1.50×10-2 1.81×103 1.02×103 5.99×101 2.50×10-2 6.89×102 3.54×102 3.00×101 4.50×10-2 8.58×102 4.50×102 3.64×101 8.00×10-2 5.51×102 2.94×102 2.04×101 1.50×10-1 6.13×103 4.72×103 8.20×101 3.00×10-1 5.88×103 5.42×103 5.24×103 5.00×10-1 1.70×103 5.38×102 6.34×101 6.50×10-1 3.32×102 1.16×102 5.36×10-1 7.50×10-1 1.05×103 8.16×102 3.45×10-1 9.00×10-1 5.11×102 5.34×102 3.55×102 1.25 2.65×104 6.21×103 1.27×103 1.75 1.35×102 4.39×101 2.66×101 2.50 3.69×101 2.14×101 1.29×101 3.50 2.20×10-1 2.44×10-1 1.47×10-1 4.50 0.00 0.00 0.00 总源强 Total intensity 4.62×104 2.05×104 7.21×103 平均能量Average energy / MeV 8.36×10-1 5.71×10-1 5.01×10-1
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Chao PENG, Mengqi WANG, Hui LI, Zheng ZHENG, Jing GAO, Junhan XIE. Generation methodology and preliminary testing of burnup library for mobile micro fast neutron nuclear power system[J]. NUCLEAR TECHNIQUES, 2025, 48(7): 070024
Paper Information
Category: Special Issue on The First Academic Annual Conference of the Research Reactor and Innovative Reactor Association of Chinese Nuclear Society and Advanced Nuclear Power System Reactor Engineering
Received: Dec. 31, 2024
Accepted: --
Published Online: Sep. 15, 2025
The Author Email: Chao PENG (pengchao@snerdi.com.cn)
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