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T: Fachverband Teilchenphysik

T 99: Detektorsysteme IV

T 99.6: Vortrag

Donnerstag, 3. März 2016, 18:00–18:15, VMP8 SR 205

A CAD Based Geometry Model for Simulation and Analysis of Particle Detector Data — •Michael Milde, Martin Losekamm, Thomas Pöschl, Daniel Greenwald, and Stephan Paul — Technische Universität München, 85748 Garching, Deutschland

The development of a new particle detector requires a good understanding of its setup. A detailed model of the detector's geometry is not only needed during construction, but also for simulation and data analysis. To arrive at a consistent description of the detector geometry a representation is needed that can be easily implemented in different software tools used during data analysis. We developed a geometry representation based on CAD files that can be easily used within the Geant4 simulation framework and analysis tools based on the ROOT framework. This talk will present the structure of the geometry model and show its implementation using the example of the event reconstruction developed for the Multi-purpose Active-target Particle Telescope (MAPT). The detector consists of scintillating plastic fibers and can be used as a tracking detector and calorimeter with omnidirectional acceptance. To optimize the angular resolution and the energy reconstruction of measured particles, a detailed detector model is needed at all stages of the reconstruction. This research was supported by the DFG cluster of excellence "Origin and Structure of the Universe".