What is EGS?

EGS stands for Electron Gamma Shower. The EGS system of computer codes is a general purpose package for the Monte Carlo simulation of the coupled transport of ionizing electrons and photons with energies from a few keV up to several TeV. Simulations can be performed in arbitrarily complex physical geometries.
In summary,

The above text has, for the most part, been shamelessly excerpted from The EGS4 Code System, by W.R. Nelson, H. Hirayama, and D.W.O. Rogers, SLAC-265 (1985).

FAQ answer provided by Rob Stewart


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last updated 2006-01-30