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1
Monte Carlo photon benchmark problems
1990-01-01

Photon benchmark calculations have been performed to validate the MCNP Monte Carlo computer code. These are compared to both the COG Monte Carlo computer code and either experimental or analytic results. The calculated solutions indicate that the Monte Carlo method, and ...

Energy Citations Database

2
Monte Carlo photon benchmark problems
1991-01-01

Photon benchmark calculations have been performed to validate the MCNP Monte Carlo computer code. These are compared to both the COG Monte Carlo computer code and either experimental or analytic results. The calculated solutions indicate that the Monte Carlo method, and ...

Energy Citations Database

3
Efficient and Accurate Computation of Non-Negative ...
2002-07-01

... Accurate Computation of Non-Negative Anisotropic Group Scattering Cross Sections for Discrete Ordinates and Monte Carlo Radiation Transport. ...

DTIC Science & Technology

4
Hybrid Monte Carlo-Deterministic Methods for Nuclear Reactor-Related Criticality Calculations.
2004-01-01

The overall goal of this project is to develop, implement, and test new Hybrid Monte Carlo-deterministic (or simply Hybrid) methods for the more efficient and more accurate calculation of nuclear engineering criticality problems. These new methods will ma...

National Technical Information Service (NTIS)

5
Variational Monte Carlo Study of Pentaquark States in a Correlated Quark Model.
2005-01-01

Accurate numerical solution of the five-body Schrodinger equation is effected via variational Monte Carlo in a correlated quark model. The spectrum is assumed to exhibit a narrow resonance with strangeness S = +1. A fully antisymmetrized and pair-correlat...

National Technical Information Service (NTIS)

6
UCRL-PRES-211264 Parallel Monte Carlo Particle Transport and the Quality of Random Number Generators:
2005-01-01

? Recent advances in the speed of parallel computers and the development of parallel algorithms, have prompted discussion of the �quality � of the (pseudo-)random numbers required in order to produce accurate, unbiased results in Monte Carlo transport simulations.

E-print Network

7
Towards a Revised Monte Carlo Neutral Particle Surface Interaction Model.
2005-01-01

The components of the neutral- and plasma-surface interaction model used in the Monte Carlo neutral transport code DEGAS 2 are reviewed. The idealized surfaces and processes handled by that model are inadequate for accurately simulating neutral transport ...

National Technical Information Service (NTIS)

8
Monte-Carlo Simulation of PD Fuze Function during a Rainstorm.
1973-01-01

A FORTRAN program is described that simulates a spring-mass type type of PD element (including the wind force) flying through a rainstorm. Statistics for raindrop size and time between raindrop impacts are accurately simulated by Monte Carlo techniques fr...

National Technical Information Service (NTIS)

9
Monte Carlo Treatment Planning for Molecular Targeted Radiotherapy within the MINERVA System.
2004-01-01

The aim of this project is to extend accurate and patient-specific treatment planning to new treatment modalities, such as molecular targeted radiation therapy, incorporating previously crafted and proven Monte Carlo and deterministic computation methods....

National Technical Information Service (NTIS)

10
Application of the Monte Carlo Transport Code MORSE to the Calculation of Pulsed Neutron Experiments.
1978-01-01

An accurate calculation tool is essential for the assessment of nuclear data by the pulsed neutron technique. The Monte Carlo transport code MORSE is such a tool and its application to the calculation of pulsed neutron experiments is presented. Modificati...

National Technical Information Service (NTIS)

11
Accurate nonlinear Monte Carlo collision operator.
1995-01-01

A three dimensional nonlinear Monte Carlo collision model is developed based on Coulomb binary collisions with the emphasis both on the accuracy and implementation efficiency. The operator of simple form fulfills particle number, momentum and energy conse...

National Technical Information Service (NTIS)

12
Methods for calculating forces within quantum Monte Carlo simulations.
2010-02-03

Atomic force calculations within the variational and diffusion quantum Monte Carlo methods are described. The advantages of calculating diffusion quantum Monte Carlo forces with the 'pure' rather than the 'mixed' probability distribution are discussed. An accurate and practical method for ...

PubMed

13
APPLICATIONS OF MONTE-CARLO METHOD FOR CALCULATIONS OF $gamma$ QUANTA PASSING THROUGH A SUBSTANCE
1960-01-01

Correlations of data obtained by Monte Carlo calculations and experimental data confirm the efficiency of the Monte Carlo method for gamma penetration. Applications of computers permitted rapid computations of gamma trajectories and offered highly accurate resolution to a series of ...

Energy Citations Database

14
Strategies for improving the efficiency of quantum Monte Carlo calculations.
2011-06-27

We describe a number of strategies for minimizing and calculating accurately the statistical uncertainty in quantum Monte Carlo calculations. We investigate the impact of the sampling algorithm on the efficiency of the variational Monte Carlo method. We then propose a technique to maximize the ...

PubMed

15
Strategies for improving the efficiency of quantum Monte Carlo calculations
2011-06-01

We describe a number of strategies for minimizing and calculating accurately the statistical uncertainty in quantum Monte Carlo calculations. We investigate the impact of the sampling algorithm on the efficiency of the variational Monte Carlo method. We then propose a technique to maximize the ...

NASA Astrophysics Data System (ADS)

16
Hybrid Monte Carlo-Deterministic Methods for Nuclear Reactor-Related Criticality Calculations
2004-02-17

The overall goal of this project is to develop, implement, and test new Hybrid Monte Carlo-deterministic (or simply Hybrid) methods for the more efficient and more accurate calculation of nuclear engineering criticality problems. These new methods will make use of two (philosophically and practically) very different techniques - the ...

DOE Information Bridge

17
P.O. Box 9003 - NASA Technical Report Server (NTRS)

is slightly more accurate (and time consuming) than the Monte Carlo code since particle .... Variational Principle for Nonlinear Spiral Density Waves ...

NASA Website

18
Monte Carlo Code for Evaluating the Boundary Layer ...
1995-01-01

... source photon and collided photon during a run. ... angle distribution of the photons escaping from ... of providing accurate radiation transport data used ...

DTIC Science & Technology

19
Investigations of the Motion of Discrete-Velocity Gases by ...
1988-09-02

... accurate results in calculations by direct-simulation Monte-Carlo methods of ... the results of an exploratory investigation of heat conduction and shock ...

DTIC Science & Technology

20
EFFICIENT SCHEMES FOR ROBUST IMRT TREATMENT PLANNING 1 ...

(Wu 2002), is a problem in which treatment is carried out in two axial ..... ' DPM, a fast, accurate Monte Carlo code optimized for photon and electron ...

E-print Network

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21
AeroSpace Information for a Changing World - NASA Technical ...

Rotating Arc Jet Test Model: Time-Accurate Trajectory Heat Flux Replication in a .... The design process concludes with a Monte Carlo simulation where the ...

NASA Website

22
USES OF MONTE CARLO IN PERT
1963-02-01

... Title : USES OF MONTE CARLO IN PERT. ... ENGINEERING, *OPERATIONS RESEARCH, MONTE CARLO METHOD, NUMERICAL METHODS AND ...

DTIC Science & Technology

23
Monte Carlo Simulation

Monte Carlo Simulation. Monte Carlo analysis examined simultaneous changes (1000 iterations): Probability distributions were fitted to the survey responses. ...

NASA Website

24
Monte Carlo Approximations in Bayesian Decision Theory. ...
1988-12-01

... MONTE CARLO APPROXIMATIONS IN BAYESIAN I DECISION THEORY PART III: LIMITING BEHAVIOR OF MONTE CARLO APPROXIMATIONS ...

DTIC Science & Technology

25
Monte Carlo Approximations in Bayesian Decision Theory. ...
1989-01-01

... Title : Monte Carlo Approximations in Bayesian Decision Theory. ... Two accuracy measures of the Monte Carlo approximations are proposed. ...

DTIC Science & Technology

26
Monte Carlo Approximations in Bayesian Decision Theory. ...
1988-12-01

... Title : Monte Carlo Approximations in Bayesian Decision Theory. Part 3. Limiting Behavior of Monte Carlo Approximations. ...

DTIC Science & Technology

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