Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 12: Poster Session: Instrumentation and Applications

HK 12.15: Poster

Dienstag, 9. März 2004, 13:30–15:30, Foyer

The simulation of UCN experiments with Geant4 — •Peter Fierlinger, Reinhold Henneck, Axel Pichlmaier, and Klaus Kirch — PSI

The particle tracking code Geant4 was adapted to handle the influence of gravity, time dependent inhomogeneous magnetic fields and material interactions for the simulation of ultracold neutron experiments. In contrast to other codes Geant4 can handle almost any geometry by a standardized CAD interface and has a wide range of nuclear physics already implemented. Tests and performance of the tracking procedure with new implemented forces and physics processes are shown. A full simulation for a new experiment to measure the loss- and spinflip-probability per wall collision in a combined material-, gravitational- and magnetic trap is discussed.