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2nd International Simbol-X Symposium, Paris : France (2008)
Status of the Simbol-X Background Simulation Activities
C. Tenzer, U. Briel, A. Bulgarelli, R. Chipaux1, A. Claret1, G. Cusumano, E. Dell'Orto, V. Fioretti, L. Foschini, S. Hauf, E. Kendziorra, M. Kuster, P. Laurent1, 2, A. Tiengo
SIMBOL-X Collaboration(s)

The Simbol-X background simulation group is working towards a simulation based background and mass model which can be used before and during the mission. Using the Geant4 toolkit, a Monte-Carlo code to simulate the detector background of the Simbol-X focal plane instrument has been developed with the aim to optimize the design of the instrument. Achieving an overall low instrument background has direct impact on the sensitivity of Simbol-X and thus will be crucial for the success of the mission. We present results of recent simulation studies concerning the shielding of the detectors with respect to the diffuse cosmic hard X-ray background and to the cosmic-ray proton induced background. Besides estimates of the level and spectral shape of the remaining background expected in the low and high energy detector, also anti-coincidence rates and resulting detector dead time predictions are discussed.
1 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie

Physique/Astrophysique/Phénomènes cosmiques de haute energie
X-ray – Apertures – collimators – Neutrino – muon – pion – and other elementary particles – cosmic rays – Imaging detectors and sensors