Köln 2004 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 10: Poster Session: Nuclear Structure/Spectroscopy
HK 10.16: Poster
Dienstag, 9. März 2004, 13:30–15:30, Foyer
Simulation of the experiment “Bremsstrahlung in α-decay” — •Vinzenz Bildstein, Hans Boie, Heiko Scheit, and Dirk Schwalm — Max-Planck-Institut für Kernphysik, Heidelberg, Germany
At the MPI für Kernphysik in Heidelberg an experiment to measure the Bremsstrahlung emission probability in the α-decay of 210Po[1] is currently performed.
A simulation of the experiment was written to calculate the efficiency of the setup of the experiment for coincident α and γ particles. The simulation is based on the Geant4[2] package that provides the C++-classes for a Monte-Carlo simulation of the interactions of α and γ particles with matter.
Different experimental setups were simulated to study the influence of uncertainties in the geometry of the experiment on the γ efficiency. Examples for these uncertainties are the positions of the detectors and thicknesses of materials the γ rays have to penetrate. In addition, the results of the simulation were compared to data from the experiment and the influence of various assumptions on the γ–α angle correlation on the efficiency was studied.
The calculated efficiency dependence on the energy of the Bremsstrahlung and the systematic errors from the mentioned uncertainties in the geometric setup of the experiment will be presented.
[1] Aufbau eines Experimentes zur Messung der Emissionswahrscheinlichkeit von Bremsstrahlung im α-Zerfall von 210Po, Diplomarbeit, Hans-Hermann Boie, MPI für Kernphysik, 2002
[2] http://geant.cern.ch