In this paper we propose a mathematical procedure to computer simulate the electronic noise of ionizing-radiation spectrometers as observed at the output of the preamplifier or of the anti-aliasing filter, just in front of the ADC. Examples are given for the case of segmented HPGe (High Purity Germanium) detectors. The method makes use of the fractional calculus basics. A software procedure provides the noisy waveform as a function of the fundamental electrical-physical parameters of the system, including: detector capacitance, detector leakage current, feedback resistor, 1/f-noise coefficient of the input transistor, temperature of the preamplifier input devices.
Computer simulation of the electronic noise of solid-state detectors / A. Pullia, M. Maderna - In: 2003 IEEE Nuclear science symposium conference record. Volume 1Piscataway, USA : IEEE, 2003. - ISBN 0-7803-8257-9. - pp. 566-570 (( convegno Nuclear science symposium and medical imaging conference tenutosi a Portland, OR, USA nel 2003.
Computer simulation of the electronic noise of solid-state detectors
A. PulliaPrimo
;
2003
Abstract
In this paper we propose a mathematical procedure to computer simulate the electronic noise of ionizing-radiation spectrometers as observed at the output of the preamplifier or of the anti-aliasing filter, just in front of the ADC. Examples are given for the case of segmented HPGe (High Purity Germanium) detectors. The method makes use of the fractional calculus basics. A software procedure provides the noisy waveform as a function of the fundamental electrical-physical parameters of the system, including: detector capacitance, detector leakage current, feedback resistor, 1/f-noise coefficient of the input transistor, temperature of the preamplifier input devices.Pubblicazioni consigliate
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