RT Journal Article
T1 Strategies for shortening the output pulse of silicon photomultipliers
A1 Antoranz Canales, Pedro
A1 Miranda Pantoja, José Miguel
A1 Yebras Rivera, José Manuel
AB In this work, three strategies for shortening the output pulse of a silicon photomultiplier (SiPM) are reported. The first strategy is passive filtering, where band-pass filtering removes the lowest frequency components in the signal, getting a noticeable reduction in pulse width (a compression ratio of 10: 1 was obtained). In the second place, a reflectometric scheme is proposed where the amplified signal coming from the SiPM is injected into a signal splitter with one of its stubs connected to a short-circuited stub. In the last strategy, the reflectometric part is replaced by an analog subtractor circuit. In this approach, a signal splitter with stubs of different lengths is used. All solutions provide good compression ratios, up to 10: 1. Best pulses obtained are single narrow peaks, with width below 10 ns, preserving the photonic modulation and with good pseudo-Gaussian shape, single polarity and low ringing. The potential of pulse shortening for improving the capability of the detector to resolve single photons is demonstrated by mean of single photon counting patterns. The detection error probability is reduced in one order of magnitude when shortening is used for conditioning the output photosignal.
PB Spie-Soc Photo-Optical Instrumentation Engineers
SN 0091-3286
YR 2012
FD 2012-07
LK https://hdl.handle.net/20.500.14352/43749
UL https://hdl.handle.net/20.500.14352/43749
LA spa
NO Spanish MICINN
DS Docta Complutense
RD 2 may 2024