Acceleration of fission source convergence in the Serpent 2 Monte Carlo code using a response matrix based solution for the initial source distribution

2019 ◽  
Vol 128 ◽  
pp. 63-68 ◽  
Author(s):  
Jaakko Leppänen
Keyword(s):  
Monte Carlo ◽  
Source Distribution ◽  
Monte Carlo Code ◽  
Response Matrix ◽  
Source Convergence ◽  
Initial Source

scholarly journals ENHANCING THE PERFORMANCE OF FISSION SOURCE CONVERGENCE WITH FUNCTIONAL EXPANSION TALLIES IN SERPENT 2 MONTE CARLO CODE

2021 ◽  
Vol 247 ◽  
pp. 04001
Author(s):  
Ana Jambrina ◽  
Jaakko Leppänen ◽  
Heikki Suikkanen
Keyword(s):  
Monte Carlo ◽  
Form Factors ◽  
Convergence Acceleration ◽  
Initial Guess ◽  
Monte Carlo Code ◽  
Response Matrix ◽  
Forward Solution ◽  
Functional Expansion ◽  
Source Convergence ◽  
New Feature

This paper presents an upgrade to the built-in response matrix based solver implemented in Serpent 2 Monte Carlo code aiming to improve the fission source convergence when obtaining the forward solution to the k-eigenvalue criticality source problems. The functional expansion tallies are introduced in an attempt to improve the accuracy of the cell-wise form factors that feed the response matrix solver, replacing the current mesh-based approach. The functional expansion tallies reconstruct the binning surface and collision tallies, by using high-order series expansion to represent the original and continuous spatial distributions. This new feature is implemented to Serpent 2 and tested by single-assembly and full-core PWR calculations (BEAVRS benchmark). The results show enhanced performance of the convergence acceleration methodology based on an improved initial guess of the fission source.

Usage of burnt fuel isotopic compositions from engineering codes in Monte-Carlo code calculations

Kerntechnik ◽  
2015 ◽  
Vol 80 (4) ◽  
pp. 394-401 ◽  
Author(s):  
S. S. Aleshin ◽  
S. S. Gorodkov ◽  
A. I. Shcherenko
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Code ◽  
Isotopic Compositions

scholarly journals FRED: a fast Monte Carlo code on GPU for quality control in Particle Therapy

2020 ◽  
Vol 1548 ◽  
pp. 012020
Author(s):  
M De Simoni ◽  
M Fischetti ◽  
E Gioscio ◽  
M Marafini ◽  
R Mirabelli ◽  
...  
Keyword(s):  
Quality Control ◽  
Monte Carlo ◽  
Particle Therapy ◽  
Monte Carlo Code

Improvement of sensitivity and uncertainty analysis capabilities of generalized response in Monte Carlo code RMC

2021 ◽  
Vol 154 ◽  
pp. 108099
Author(s):  
Guanlin Shi ◽  
Yuchuan Guo ◽  
Conglong Jia ◽  
Zhiyuan Feng ◽  
Kan Wang ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Uncertainty Analysis ◽  
Monte Carlo Code ◽  
Sensitivity And Uncertainty Analysis
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