Impact of oscilloscope connections and bandwidth on signal formation from a SiPM coupled to a LYSO scintillator for gamma spectroscopy
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SANTOS, ADELSON D. dos
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Nuclear Engineering and Technology
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This article explores the signal produced by a silicon photomultiplier (SiPM) coupled to a LYSO scintillator in
gamma spectroscopy using time and frequency-domain measurements with an oscilloscop. Analyses were performed
to address the influence of coaxial cables and oscilloscope probes in the measurements. Limitations of the
oscilloscopes bandwidth on the extracted pulses were studied, as well as investigation of the effect of the ambient
disturbances, using the two types of cable connections. The analytic Fourier transform of the pulse is analyzed, to
indentify the parameters correlating both time and frequency domain. Since there are no further additional
amplifiers or signal conditioning stages after the sensor, the results represent the unfiltered signal shape collected
by the oscilloscope input impedance. Conclusions are presented as guidelines and design trade-offs concerning
the instrumentation and pre-amplifier design.
Como referenciar
PEROTONI, MARCELO B.; KONSTANTINOU, GEORGIOUS; SANTOS, ADELSON D. dos; BONIFACIO, DANIEL A.B. Impact of oscilloscope connections and bandwidth on signal formation from a SiPM coupled to a LYSO scintillator for gamma spectroscopy. Nuclear Engineering and Technology, v. 58, n. 2, p. 1-9, 2026. DOI: 10.1016/j.net.2025.103934. Disponível em: https://repositorio.ipen.br/handle/123456789/49307. Acesso em: 24 Mar 2026.
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