Editing Geant4 (section)

== Applications outside high energy physics ==
[[Image:RREA Monte Carlo simulation.png|thumb|right|400px|GEANT4 simulation of relativistic electron avalanche driven by an electric field in air as might occur in thunderstorms and lightning.]]
Because of its general purpose nature, Geant4 is well suited for development of computational tools for analysing interactions of particle with matter in many areas. These include:
* Space applications<ref>http://geant4.esa.int </ref> where it is used to study interactions between the natural space radiation environment and space hardware or astronauts;
* Radiation effects in microelectronics where ionizing effects on semiconductor devices are modeled.
* Nuclear physics