S
Stefan Gundacker
Researcher at CERN
Publications - 51
Citations - 2339
Stefan Gundacker is an academic researcher from CERN. The author has contributed to research in topics: Silicon photomultiplier & Scintillator. The author has an hindex of 24, co-authored 51 publications receiving 1535 citations. Previous affiliations of Stefan Gundacker include University of Milan & University of Milano-Bicocca.
Papers
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Journal ArticleDOI
Understanding and simulating SiPMs
Fabio Acerbi,Stefan Gundacker +1 more
TL;DR: In this paper, the authors consider the structure and electrical model of a single photon avalanche diode (SPAD), and the integration in an array, i.e., the SiPM.
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Experimental time resolution limits of modern SiPMs and TOF-PET detectors exploring different scintillators and Cherenkov emission.
Stefan Gundacker,Rosana Martinez Turtos,Nicolaus Kratochwil,Nicolaus Kratochwil,Rosalinde Hendrika Pots,Rosalinde Hendrika Pots,Marco Paganoni,Paul Lecoq,E. Auffray +8 more
TL;DR: The limits of BGO for ultrafast timing in TOF-PET with Monte Carlo simulations are predicted and the measured CTR of the various scintillators are summarized and discussed to discuss their intrinsic timing performance.
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State of the art timing in TOF-PET detectors with LuAG, GAGG and L(Y)SO scintillators of various sizes coupled to FBK-SiPMs
Stefan Gundacker,Fabio Acerbi,Etiennette Auffray,Alessandro Ferri,Alberto Gola,Mythra Varun Nemallapudi,Giovanni Paternoster,Claudio Piemonte,Paul Lecoq +8 more
TL;DR: In this article, the authors used LSO:Ce codoped with Ca scintillators to obtain the best CTR values of 73±2ps FWHM for 2×2×3 mm3 and 117±3ps for 2 ×2×20 mm3 crystal sizes.
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Measurement of intrinsic rise times for various L(Y)SO and LuAG scintillators with a general study of prompt photons to achieve 10 ps in TOF-PET.
TL;DR: The timing benefits of prompt photons at the beginning of the scintillation process (Cherenkov etc) are further studied, which leads to the conclusion that theScintillation rise time, SPTR and PTS have to be lowered simultaneously to fully profit from these fast photons in order to improve the CTR significantly.
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High-frequency SiPM readout advances measured coincidence time resolution limits in TOF-PET.
TL;DR: This paper shows that high-frequency bipolar transistor readout of state-of-the-art SiPMs coupled to high-performance scintillators can substantially improve the best achievable coincidence time resolution (CTR) in TOF-PET.