Modeling of Germanium Detector and Its Sourceless Calibration
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The paper describes the procedure of adapting a coaxial high-precision germanium detector to a device with numerical calibration. The procedure includes the determination of detector dimensions and establishing the corresponding model of the system. In order to achieve a successful calibration of the system without the usage of standard sources, Monte Carlo simulations were performed to determine its efficiency and pulse-height response function. A detailed Monte Carlo model was developed using the MCNP-5.0 code. The obtained results have indicated that this method represents a valuable tool for the quantitative uncertainty analysis of radiation spectrometers and gamma-ray detector calibration, thus minimizing the need for the deployment of radioactive sources.
Ključne reči:gamma-ray spectrometry / HPGe modeling / sourceless calibration / Monte Carlo methods
Izvor:Nuclear technology and radiation protection, 2008, 23, 2, 51-57
- Ministry of Science and Technological Development of Serbia, International Atomic Energy Agency (IAEA) [SCG/4/003]