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Journal ArticleDOI

Accurate condensed history Monte Carlo simulation of electron transport. I. EGSnrc, the new EGS4 version

Iwan Kawrakow
- 01 Mar 2000 - 
- Vol. 27, Iss: 3, pp 485-498
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TLDR
It is demonstrated that EGSnrc allows for an artifact free Monte Carlo simulation of ion chamber response and backscattering, situations that have been considered in the past as the two of the most stringent tests of condensed history Monte Carlo codes.
Abstract
In this report a new EGS4 version, called EGSnrc to reflect the substantial changes made to the original code is reported, which incorporates a new any-angle multiple elastic scattering theory, an improved electron-step algorithm, a correct implementation of the fictitious cross section method for sampling distances between discrete interactions, a more accurate evaluation of energy loss, as well as an exact boundary crossing algorithm It is demonstrated that EGSnrc allows for an artifact free Monte Carlo simulation of ion chamber response and backscattering, situations that have been considered in the past as the two of the most stringent tests of condensed history Monte Carlo codes A detailed discussion of the effect of the various components of the condensed history simulation of electron transport on the simulated ion chamber response is given in the accompanying paper

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Citations
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TOPAS: An innovative proton Monte Carlo platform for research and clinical applications

TL;DR: An innovative proton Monte Carlo platform is developed and a custom-designed TOPAS parameter control system was placed at the heart of the code to meet requirements for ease of use, reliability, and repeatability without sacrificing flexibility.
Journal ArticleDOI

Monte Carlo modelling of external radiotherapy photon beams.

TL;DR: There has been an enormous increase in Monte Carlo studies dealing specifically with the subject of the present review, i.e., external photon beam Monte Carlo calculations, aided by the advent of new codes and fast computers.
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Track-structure codes in radiation research

TL;DR: A review of recent progress in the development of particle track simulation for electron, low-energy light ions and finally the recent model development for the low energy electron cross-sections in liquid water can be found in this article.
References
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Journal ArticleDOI

Multiple Scattering of Electrons

S. Goudsmit, +1 more
- 01 Jan 1940 - 
TL;DR: In this paper, a theoretical treatment of multiple Rutherford scattering is given which is exact if one considers electrons with the same total path length in the scatterer, and it is shown that this distribution depends in a sensitive way upon the deviation from the Rutherford law for small angle scattering due to screening by electrons.
Journal ArticleDOI

Presta: The parameter reduced electron-step transport algorithm for electron monte carlo transport

TL;DR: A new electron transport algorithm for use with electron Monte Carlo transport codes is presented which will allow the inexperienced user to obtain reliable results from the EGS Monte Carlo code without having to do a detailed study of the electron transport parameters.
Journal ArticleDOI

Multiple Scattering in an Infinite Medium

TL;DR: In this paper, the integro-differential diffusion equation of the multiple scattering problem in an infinite, homogeneous, medium is studied without the usual small-angle approximation, and an expansion in spherical harmonics is carried out which is rapidly convergent in the case of large-angle scattering, whose coefficients can be exactly determined, and leads to expressions for the various moments of the spatial and angular distributions.
Journal ArticleDOI

Multiple Scattering of Electrons

TL;DR: In this article, a theoretical treatment of multiple Rutherford scattering is given which is exact if one considers electrons with the same total path length in the scatterer, and it is shown that this distribution depends in a sensitive way upon the deviation from the Rutherford law for small angle scattering due to screening by electrons.
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