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20 August 2020 Growth and characterization study of K2PtCl6 type scintillators
Rastgo Hawrami, Stephanie Lam, Elsa Ariesanti, Denise A. Huerta, Vlad Buliga, Hemin Parkhe, Shariar Motakef, Arnold Burger
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Proceedings Volume 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII; 1149402 (2020) https://doi.org/10.1117/12.2567369
Event: SPIE Optical Engineering + Applications, 2020, Online Only
Abstract
Transparent, crack-free single crystal boules of 1-inch diameter Cs2HfCl6 (CHC) and Cs2HfCl4Br2 (CHCB) have been successfully grown using the vertical Bridgman method. Samples sized dia. 23mm×30mm and dia. 23mm×26mm, respectively, are characterized for their optical and scintillation properties. Energy resolutions of 3.5% and 3.7% (FWHM) at 662 keV as well as light yields of 23,000 ph/MeV and 20,000 ph/MeV have been calculated for CHC and CHCB, respectively. Results comparable to previously reported smaller crystals have been obtained. Studies on decay times, non-proportionality, and detector characterization are also reported. (This work was supported in part by U.S. Department of Energy under Grant #DE-SC0015733, U.S. National Science Foundation under Grant #HRD-1547757, and by U.S. National Aeronautics and Space Administration under Grant #NNX16AK42G).
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Rastgo Hawrami, Stephanie Lam, Elsa Ariesanti, Denise A. Huerta, Vlad Buliga, Hemin Parkhe, Shariar Motakef, and Arnold Burger "Growth and characterization study of K2PtCl6 type scintillators", Proc. SPIE 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII, 1149402 (20 August 2020); https://doi.org/10.1117/12.2567369
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KEYWORDS
Scintillators
Crystals
Scintillation
Sensors
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