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Temperature dependent luminescence characteristics of KBe2BO3F2 and RbBe2BO3F2

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, , Citation J Martincik et al 2015 IOP Conf. Ser.: Mater. Sci. Eng. 80 012015 DOI 10.1088/1757-899X/80/1/012015

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jiri.martincik@fjfi.cvut.cz

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1 Institute of Physics AS CR, Cukrovarnicka 10, Prague, Czech Republic

2 FNSPE, Czech Technical University, Prague, Czech Republic

3 Beijing center for crystal research and development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, P.O. Box 2711, Beijing, China

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1757-899X/80/1/012015

Abstract

This paper reports on a study of the luminescence characteristics of KBe2BO3F2 (KBBF) and RbBe2BO3F2(RBBF) crystals in UV/visible spectral range. The KBBF crystals are very popular for their nonlinear optical properties, however they have a potential to be used as scintillators for neutron detection. To determine the effectiveness of KBBF scintillation we combine the results from measurements of optical absorption; radioluminescence; light yield; photoluminescence and decay kinetics in the temperature range 8-330 K. Temperature dependence of luminescence in KBBF crystals is discussed.

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10.1088/1757-899X/80/1/012015