Geant4 developments and applications

TLDR

Geant4 is a widely used software toolkit that simulates particle passage through matter, serving high‑energy physics, astrophysics, space science, medical physics, and radiation protection, and its functionality and performance are continually expanded. This paper provides an overview of recent developments across diverse areas of the toolkit. Recent updates include performance optimizations for complex setups, enhanced field propagation, new event‑biasing options, and expanded geometry, physics processes, and interactive capabilities.

Abstract

Geant4 is a software toolkit for the simulation of the passage of particles through matter. It is used by a large number of experiments and projects in a variety of application domains, including high energy physics, astrophysics and space science, medical physics and radiation protection. Its functionality and modeling capabilities continue to be extended, while its performance is enhanced. An overview of recent developments in diverse areas of the toolkit is presented. These include performance optimization for complex setups; improvements for the propagation in fields; new options for event biasing; and additions and improvements in geometry, physics processes and interactive capabilities