Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Instrumentation
HK 38.8: Vortrag
Dienstag, 5. März 2013, 15:45–16:00, WIL-C207
The New Photon Tagger Device of the BGO-OD Experiment at ELSA — •Andreas Bella — Physikalisches Institut Bonn
The BGO-OD Experiment, currently under construction at ELSA at the University of Bonn, is setup to investigate the photoproduction of mesons off nuclei. Therefore, an electron beam provided by ELSA is used to produce Bremsstrahlung on a thin radiator. To determine the energy of the Bremsstrahlung, the electrons momentum analysed through a dipole magnet which bends them into a hodoscope. It consists of 120 coincidence channels which cover an energy range from 10% to 90% of the incoming electron beam energy E0. Due to geometrical constraints, the expected energy width of two overlapping scintillators varies from 0.4% to 1.7% of E0. The optimum positions of the scintillators and the expected energy resolution were determined via Virtual Monte Carlo/Geant4.
*Supported by DFG (SFB/TR-16)