Branchless Collisions for Reducing Spatial Correlations in Continuous Energy Monte Carlo Power Iteration

\nBranchless collisions are customarily used in time-dependent Monte Carlo simulations and have been recently introduced in Monte Carlo power iteration. Previous works have shown that branchless collisions are very efficient in quenching spatial correlations in a multi-group framework, and a preliminary work was previously conducted in order to extend the use of branchless collisions to continuous energy. In that work, two variants of branchless collisions were introduced: branchless on the material, and branchless on the isotope. In this work, we analyse in depth the effect of using branchless collisions in realistic systems on spatial correlations, and we show that performing branchless collisions on the material consistently results in a smaller effect of spatial correlations than when using a standard branching collision algorithm.\n

Publication Details

Journal
Springer Link (Chiba Institute of Technology)
Published
2024-10-15
DOI
https://doi.org/10.1051/epjconf/202430209005/pdf
Primary Topic
Gas Dynamics and Kinetic Theory
Type
article
Field-Weighted Citation Impact
0.00

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Branchless Collisions for Reducing Spatial Correlations in Continuous Energy Monte Carlo Power Iteration

Springer Link (Chiba Institute of Technology)
Gas Dynamics and Kinetic Theory
article

Branchless Collisions for Reducing Spatial Correlations in Continuous Energy Monte Carlo Power Iteration

article en

Abstract

\nBranchless collisions are customarily used in time-dependent Monte Carlo simulations and have been recently introduced in Monte Carlo power iteration. Previous works have shown that branchless collisions are very efficient in quenching spatial correlations in a multi-group framework, and a preliminary work was previously conducted in order to extend the use of branchless collisions to continuous energy. In that work, two variants of branchless collisions were introduced: branchless on the material, and branchless on the isotope. In this work, we analyse in depth the effect of using branchless collisions in realistic systems on spatial correlations, and we show that performing branchless collisions on the material consistently results in a smaller effect of spatial correlations than when using a standard branching collision algorithm.\n

Springer Link (Chiba Institute of Technology)
Engineering and Physical Sciences Research Council
Affordable and clean energy
Openalex Percentile: Top 49%
Gas Dynamics and Kinetic Theory
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.