SIGNAL AMPLIFICATION CHANNEL OF AVALANCHE PHOTODIODES FOR SPECTROMETRIC MEASUREMENTS UNDER A HIGH PEAK LOAD
Yu. V. Yudin1,2, D. N. Grigor'ev1,2,3, L. B. Epshtein1,2,3
1Budker Nuclear Physics Institute, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, prosp. Academika Lavrent'eva, 11
2Novosibirsk State University, 630090, Novosibirsk, ul. Pirogova, 2
3Novosibirsk State Technical University, 630073, Novosibirsk, prosp. Karkla Marksa, 20
Keywords: усилители сигналов, лавинные фотодиоды, signal amplifiers, avalanche photodiodes
Abstract
This paper proposes a method for amplification and formation of an analog signal, optimized for reaching the larger signal/noise ratio in the operation with a large-capacity signal source and allowing for recognizing the signals that arrive with a small time interval. An amplifying channel is developed that implements the proposed method. This channel is designed to amplify avalanche photodiode signals in detectors based of fast scintillators. The structure of the amplifying channel, the principle of recovering the form of the input signal, and the basic circuitry solutions used in the developed amplifier are described.
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