Geometry and Transport

Purpose

The Geant4 geometry working group is responsible for the development and maintenance of the geometry modeller in the Geant4 toolkit. The development in the Geant4 geometry modeller spawns within the following areas: geometrical shapes, navigation algorithms, detector modelling techniques (volumes positioning), transportation in field and importance biasing techniques.

Members

Show responsibility

John Apostolakis(coordinator)
- field
- navigation
Andrei Gheata(deputy)
- navigation

Pedro Arce Dubois
- navigation
- volumes
Makoto Asai
- biasing
- volumes
Rodrigo Daniel Castro
- field
Gabriele Cosmo
- management
- navigation
- volumes
Vladimir Grichine
- solids
Ivana Hrivnacova
- g3tog4
- volumes
Guilherme Lima
- navigation
- solids
Lucio Santi
- field
Raman Sehgal
- solids
Evgueni Tcherniaev
- solids
Sandro Wenzel
- navigation
- solids

Responsible categories

Design documents

Software Requirements Document - Users Requirements Document - Traceability Matrix

Work plans

2024

2023 - 2022 - 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - 2012 - 2011

2010 - 2009 - 2008 - 2007 - 2006 - 2005 - 2004 - 2003 - 2002 - 2001

Future items

Development documents

Detector description

GDML - Geometry Description Markup Language: specifications

Solids

Twisted shapes (PDF), by O.Link, 2005
Using the Surface-Checker test (PDF), by O.Link, 2005

Cuts by detector region

Category class diagrams: Geometry, Processes, Track.
Use cases through interaction diagrams:
Standard initialisation (Define region, set cuts, build physics table)
Alternative initialisation (Define production cut, add/remove region)
Step computation and tracking (PostStepDoIt, handling of material-cut-couples)

Navigation and Tracking