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__NOTOC__ The EGS (Electron Gamma Shower) computer code system is a general purpose package for the Monte Carlo simulation of the coupled transport of electrons and photons in an arbitrary geometry for particles with energies from a few keV up to several hundreds of GeV. It originated at SLAC but National Research Council of Canada and
KEK , known as KEK, is a Japanese organization whose purpose is to operate the largest particle physics laboratory in Japan, situated in Tsukuba, Ibaraki prefecture. It was established in 1997. The term "KEK" is also used to refer to the laboratory ...
have been involved in its development since the early 80s. Development of the original EGS code ended with version EGS4. Since then two groups have re-written the code with new physics: * EGSnrc, maintained by the Ionizing Radiation Standards Group, Measurement Science and Standards, National Research Council of Canada * EGS5, maintained by
KEK , known as KEK, is a Japanese organization whose purpose is to operate the largest particle physics laboratory in Japan, situated in Tsukuba, Ibaraki prefecture. It was established in 1997. The term "KEK" is also used to refer to the laboratory ...
, the Japanese particle physics research facility.


EGSnrc

EGSnrc is a general-purpose software toolkit that can be applied to build Monte Carlo simulations of coupled electron-photon transport, for particle energies ranging from 1 keV to 10 GeV. It is widely used internationally in a variety of radiation-related fields. The EGSnrc implementation improves the accuracy and precision of the charged particle transport mechanics and the atomic scattering cross-section data. The charged particle multiple scattering algorithm allows for large step sizes without sacrificing accuracy - a key feature of the toolkit that leads to fast simulation speeds. EGSnrc also includes a C++ class library called egs++ that can be used to model elaborate geometries and particle sources. EGSnrc is open source and distributed on GitHub under the
GNU Affero General Public License The GNU Affero General Public License (GNU AGPL) is a free, copyleft license published by the Free Software Foundation in November 2007, and based on the GNU General Public License, version 3 and the Affero General Public License. The Free So ...
. Download EGSnrc for free, submit bug reports, and contribute pull requests on a group GitHub page. The documentation for EGSnrc is also available online. EGSnrc is distributed with a wide range of applications that utilize the radiation transport physics to calculate specific quantities. These codes have been developed by numerous authors over the lifetime of EGSnrc to support the large user community. It is possible to calculate quantities such as
absorbed dose Absorbed dose is a dose quantity which is the measure of the energy deposited in matter by ionizing radiation per unit mass. Absorbed dose is used in the calculation of dose uptake in living tissue in both radiation protection (reduction of harmf ...
, kerma, particle fluence, and much more, with complex geometrical conditions. One of the most well-known EGSnrc applications is BEAMnrc, which was developed as part of the OMEGA project. This was a collaboration between the National Research Council of Canada and a research group at the University of Wisconsin–Madison. All types of medical
linear accelerators A linear particle accelerator (often shortened to linac) is a type of particle accelerator that accelerates charged subatomic particles or ions to a high speed by subjecting them to a series of oscillating electric potentials along a linear beam ...
can be modelled using the BEAMnrc's component module system.


See also

*
GEANT (program) GEANT is the name of a series of simulation software designed to describe the passage of elementary particles through matter, using Monte Carlo methods. The name is an acronym formed from "GEometry ANd Tracking". Originally developed at CERN for h ...
* Geant4


References


External links


NRC-CNRC page for EGSnrc

KEK page for EGS5

EGSnrc Github page

EGSnrc online documentation

EGSnrc subreddit
Monte Carlo software Physics software Medical physics Radiation therapy Monte Carlo particle physics software Free science software {{science-software-stub