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HK: Fachverband Hadronen und Kerne
HK 58: Nuclear Structure and Dynamics I
HK 58.8: Talk
Wednesday, March 18, 2009, 18:30–18:45, H-ZO 40
Monte Carlo optimization of the High Resolution Gamma Spectroscopy Germanium Array for DESPEC — •Maria Doncel1, Begoña Quintana1, Alejandro Algora2, Felipe Lorenzo1, and Pavel Detistov1 — 1Departamento de Física Fundamental. Universidad de Salamanca, 37008 Spain — 2Instituto de Física Corpuscular. Universidad de Valencia, 46071 Spain
In this work, we present the results obtained by Monte Carlo simulations with Geant4 aimed to search the best response of the high resolution gamma spectroscopy germanium array for DESPEC (Decay Spectroscopy) that is going to be built at FAIR (GSI). This array will be based on the new concepts of the pulse shape analysis, γ-ray tracking and imaging. The technical proposal is based on planar germanium detectors due to for the new capabilities we want to develop, high position and energy resolution is needed, and in this terms planar detectors are better than coaxial detectors. In our study, we have optimized the value of the principal parameters that can affect the quality of the system and the best geometry for the experiments proposed for this array. Thinking in the capabilities of tracking and imaging, we have also considered different configurations of planar detectors with the objective of knowing which of them has the best specifications in terms of є and P/T in a wide range of energies (from 100 keV to 8 MeV). In the simulations we take into account an extended source in the implantation plane therefore we obtain a map of the efficiency and P/T for all the possible emitting points.