Determination of HPGe detector response using MCNP5 for 20-150 keV X-rays. |
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| Authors: | César Marques Salgado Claudio C Conti Paulo H B Becker |
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| Affiliation: | Instituto de Engenharia Nuclear, Via Cinco, s/n, Cidade Universitária, Rio de Janeiro, CEP 21945-970 Caixa Postal 68550, Brazil. otero@ien.gov.br |
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| Abstract: | The Monte Carlo method was used to calculate the efficiency, escape and Compton curves of a planar high-purity germanium detector (HPGe) in the 20-150 keV energy. These curves were used for the determination of photons spectra produced by an X-ray machine in order to allow a precise characterization of photon beams applied to medical diagnosis. The detector was modeled with the MCNP5 computer code and validated by comparison with experimental data. The air kerma calculated after the spectra stripping was compared with ionization chamber measurements. |
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