Speaker
Mr
Andrei Gheata
(CERN/ISS)
Description
The ROOT geometry modeller (TGeo) offers powerful tools for detector geometry
description. The package provides several functionalities like: navigation, geometry
checking, enhanced visualization, geometry editing GUI and many others, using ROOT
I/O. A new interface module g4root was recently developed to take advantage of ROOT
geometry navigation optimizations in the context of GEANT4 simulation. The interface
can be used either by native GEANT4-based simulation applications or in the more
general context of the Virtual Monte Carlo (VMC) framework developed by ALICE offline
and ROOT teams. The latter allows running GEANT3, GEANT4 and FLUKA simulations
without changing the geometry description nor the user code.
The interface was tested and stressed in the context of ALICE simulation framework. A
description of the interface, its usage as well as recent results in terms of
reliability and performance will be presented. Some benchmarks will be compared for
ROOT-TGeo or GEANT4 based navigation.
Summary
Navigation interface of GEANT4 with a ROOT TGeo geometry.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | ALICE Offline Collaboration |
|---|
Authors
Mr
Andrei Gheata
(CERN/ISS)
Mrs
Mihaela Gheata
(CERN/ISS)
