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Volume 37 Issue 1
Feb.  2025
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Tang Songqian, Xiao Feng, Tan Yi, Wei Shuping. Analysis of Complex Nuclide Chain Equation Calculation Based on Different Method[J]. Nuclear Power Engineering, 2016, 37(1): 8-12. doi: 10.13832/j.jnpe.2016.01.0008
Citation: Tang Songqian, Xiao Feng, Tan Yi, Wei Shuping. Analysis of Complex Nuclide Chain Equation Calculation Based on Different Method[J]. Nuclear Power Engineering, 2016, 37(1): 8-12. doi: 10.13832/j.jnpe.2016.01.0008

Analysis of Complex Nuclide Chain Equation Calculation Based on Different Method

doi: 10.13832/j.jnpe.2016.01.0008
  • Received Date: 2015-04-15
  • Rev Recd Date: 2015-12-04
  • Available Online: 2025-02-15
  • Depletion calculation of a large number of isotopes plays a very important role in many fields, and ORIGEN-S is the most widely used complex nuclide chain equation calculation code. In this paper, the theory of ORIGEN-S is presented, the time-dependent burnup matrix is explorted and solved using Chebyshev rational approximation method. Results comparing with ORIGEN-S show that, for most of the nuclides, the difference between two methods is quite small, but because ORIGEN-S assumes that the short-lived nuclide is in balance with its long-lived precursor, the result of some nuclides can be conservative, and the deeper the depletion the smaller the difference.

     

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