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Title: Methods, systems, and apparatuses for calculating global fluence for neutron and photon monte carlo transport using expected value estimators

Abstract

Global fluence estimators may be calculated on accelerators and processors for neutron and photon Monte Carlo transport. Monte Carlo random walk simulation may be performed on the processors and the calculation of a Volumetric-Ray-Casting (VRC) estimator may be offloaded to the accelerators. The VRC estimator may modify an expected-value estimator to extend a pseudo-particle ray along the direction of the emitted particle from source and collision event through not only the event volume, but also through all volumes that describe the problem geometry. Additionally, many pseudo-particle rays may be sampled per event, rather than just a single pseudo-particle ray per event, in order to provide more complete angular coverage.

Inventors:
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
2293832
Patent Number(s):
11809518
Application Number:
15/997,002
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/04/2018
Country of Publication:
United States
Language:
English

Citation Formats

Sweezy, Jeremy Ed. Methods, systems, and apparatuses for calculating global fluence for neutron and photon monte carlo transport using expected value estimators. United States: N. p., 2023. Web.
Sweezy, Jeremy Ed. Methods, systems, and apparatuses for calculating global fluence for neutron and photon monte carlo transport using expected value estimators. United States.
Sweezy, Jeremy Ed. Tue . "Methods, systems, and apparatuses for calculating global fluence for neutron and photon monte carlo transport using expected value estimators". United States. https://www.osti.gov/servlets/purl/2293832.
@article{osti_2293832,
title = {Methods, systems, and apparatuses for calculating global fluence for neutron and photon monte carlo transport using expected value estimators},
author = {Sweezy, Jeremy Ed},
abstractNote = {Global fluence estimators may be calculated on accelerators and processors for neutron and photon Monte Carlo transport. Monte Carlo random walk simulation may be performed on the processors and the calculation of a Volumetric-Ray-Casting (VRC) estimator may be offloaded to the accelerators. The VRC estimator may modify an expected-value estimator to extend a pseudo-particle ray along the direction of the emitted particle from source and collision event through not only the event volume, but also through all volumes that describe the problem geometry. Additionally, many pseudo-particle rays may be sampled per event, rather than just a single pseudo-particle ray per event, in order to provide more complete angular coverage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {11}
}

Works referenced in this record:

Monte Carlo Shielding Calculations for a Spent Fuel Transport Cask with Automated Monte Carlo Variance Reduction
journal, October 2011


A New Class of Monte Carlo Estimators
journal, July 1966


Geant4-based Monte Carlo simulations on GPU for medical applications
journal, July 2013


Method for Calculation Radiation Doses from Acquired Image Data
patent-application, April 2008


Quasi-monte Carlo Light Transport Simulation by Efficient Ray Tracing
patent-application, July 2009