CERN Accelerating science

CERN Document Server 4 のレコードが見つかりました。  検索にかかった時間: 1.41 秒 
1.
Core–shell ZnO:Ga-SiO$_2$ nanocrystals: limiting particle agglomeration and increasing luminescence via surface defect passivation / Procházková, Lenka (Prague, Tech. U. ; Prague, Inst. Phys.) ; Vaněček, Vojtěch (CTU, Prague) ; Čuba, Václav (CTU, Prague) ; Pjatkan, Radek (Unlisted, CZ) ; Martinez-Turtos, Rosana (Milan Bicocca U.) ; Jakubec, Ivo (ASCR, Prague) ; Buryi, Maksym (Prague, Inst. Phys.) ; Omelkov, Sergey (Tartu U.) ; Auffray, Etiennette (CERN) ; Lecoq, Paul (CERN) et al.
Heat treatment is needed to increase the luminescence intensity of ZnO:Ga particles, but it comes at the cost of higher particle agglomeration. Higher agglomeration results in low transparency of scintillating powder when embedded in a matrix and constitutes one of the biggest disadvantages, besides low light yield and low stopping power, of ZnO:Ga powder. [...]
2019 - 7 p. - Published in : RCS Advances 9 (2019) 28946-28952
2.
Experimental time resolution limits of modern SiPMs and TOF-PET detectors exploring different scintillators and Cherenkov emission / Gundacker, Stefan (Milan Bicocca U. ; CERN) ; Martinez Turtos, Rosana (CERN) ; Kratochwil, Nicolaus (CERN ; Vienna U.) ; Pots, Rosalinde Hendrika (CERN ; RWTH Aachen U.) ; Paganoni, Marco (Milan Bicocca U. ; CERN) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN)
Solid state photodetectors like silicon photomultipliers (SiPMs) are playing an important role in several fields of medical imaging, life sciences and high energy physics. They are able to sense optical photons with a single photon detection time precision below 100 ps, making them ideal candidates to read the photons generated by fast scintillators in time of flight positron emission tomography (TOF-PET). [...]
2020 - 20 p. - Published in : Phys. Med. Biol. 65 (2020) 025001 Fulltext: PDF;
3.
Measurement of LYSO Intrinsic Light Yield Using Electron Excitation / Martinez Turtos, Rosana (Milan Bicocca U.) ; Gundacker, Stefan (CERN) ; Pizzichemi, Marco (Milan Bicocca U.) ; Ghezzi, Alessio (Milan Bicocca U.) ; Pauwels, Kristof (CERN) ; Auffray, Etiennette (CERN) ; Lecoq, Paul (CERN) ; Paganoni, Marco (Milan Bicocca U.)
The determination of the intrinsic light yield $(LY_{int})$ of scintillating crystals, i.e. number of optical photons created per amount of energy deposited, constitutes a key factor in order to characterize and optimize their energy and time resolution. [...]
2016 - 5 p. - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 475-479
In : 13th International Conference on Inorganic Scintillators and Their Applications, Berkeley, CA, USA, 7 - 12 Jun 2015, pp.475-479
4.
Alternative Geometries for Improved Light Output of Inorganic Scintillating Crystals / Nemallapudi, Mythra Varun (CERN) ; Gundacker, Stefan (CERN) ; Martinez Turtos, Rosana (Milan Bicocca U.) ; Vangeleyn, Matthieu (Kloe, Montpellier) ; Brillouet, Nicolas (Kloe, Montpellier) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN)
It is important to optimize the crystal-photodetector coupling for gamma detection since it improves the light extraction and is directly linked to the achieved time resolution. In this paper we present our work on altering the geometry of the crystal coupling face to enhance the light output. [...]
2016 - 7 p. - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 649-655
In : 13th International Conference on Inorganic Scintillators and Their Applications, Berkeley, CA, USA, 7 - 12 Jun 2015, pp.649-655

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