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- Title
THE SIMULATION OF AN IMAGING GAMMA-RAY COMPTON BACKSCATTERING DEVICE USING GEANT4.
- Authors
FLECHAS, D.; SARMIENTO, L.G.; CRISTANCHO, F.; FAJARDO, E.
- Abstract
A gamma-backscattering imaging device dubbed Compton Camera, developed at GSI (Darmstadt, Germany) and modified and studied at the Nuclear Physics Group of the National University of Colombia in Bogotá, uses the back-to-back emission of two gamma rays in the positron annihilation to construct a bidimensional image that represents the distribution of matter in the field-of-view of the camera. This imaging capability can be used in a host of different situations, for example, to identify and study deposition and structural defects, and to help locating concealed objects, to name just two cases. In order to increase the understanding of the response of the Compton Camera and, in particular, its image formation process, and to assist in the data analysis, a simulation of the camera was developed using the GEANT4 simulation toolkit. In this work, the images resulting from different experimental conditions are shown. The simulated images and their comparison with the experimental ones already suggest methods to improve the present experimental device
- Publication
International Journal of Modern Physics: Conference Series, 2014, Vol 27, p-1
- ISSN
2010-1945
- Publication type
Article
- DOI
10.1142/S2010194514601525