After the discovery of a cross-luminescence (CL) in BaF2 in 1982, a large number of CL scintillators were investigated. However, no CL scintillator superior to BaF2 has been discovered, and the research of CL scintillators has subsided. Recent technological development in medical imaging and high-energy physics created a new demand for ultra-fast scintillators further supported by the development of UV-sensitive semiconductor photodetectors. As a consequence, renewed interest in CL scintillators appeared. To satisfy the requirements of fast timing applications high photo-detection efficiency, e. i. a good spectral match between the scintillator and photodetector must be achieved. Cesium-based ternary chlorides could provide a red-shift (∼1.5 eV) of CL towards the sensitive region of the photodetector (PMT or SiPM) while keeping light output and timing characteristics comparable to BaF2.

Vanecek, V., Paterek, J., Kral, R., Kucerkova, R., Babin, V., Rohlicek, J., et al. (2021). Ultraviolet cross-luminescence in ternary chlorides of alkali and alkaline-earth metals. OPTICAL MATERIALS. X, 12(December 2021) [10.1016/j.omx.2021.100103].

Ultraviolet cross-luminescence in ternary chlorides of alkali and alkaline-earth metals

Calà R.;
2021

Abstract

After the discovery of a cross-luminescence (CL) in BaF2 in 1982, a large number of CL scintillators were investigated. However, no CL scintillator superior to BaF2 has been discovered, and the research of CL scintillators has subsided. Recent technological development in medical imaging and high-energy physics created a new demand for ultra-fast scintillators further supported by the development of UV-sensitive semiconductor photodetectors. As a consequence, renewed interest in CL scintillators appeared. To satisfy the requirements of fast timing applications high photo-detection efficiency, e. i. a good spectral match between the scintillator and photodetector must be achieved. Cesium-based ternary chlorides could provide a red-shift (∼1.5 eV) of CL towards the sensitive region of the photodetector (PMT or SiPM) while keeping light output and timing characteristics comparable to BaF2.
Articolo in rivista - Articolo scientifico
Alkaline-earth halides; Auger-free luminescence; Core-valence luminescence; Cross-luminescence; Crystal growth; Vertical Bridgman method;
English
2021
12
December 2021
100103
none
Vanecek, V., Paterek, J., Kral, R., Kucerkova, R., Babin, V., Rohlicek, J., et al. (2021). Ultraviolet cross-luminescence in ternary chlorides of alkali and alkaline-earth metals. OPTICAL MATERIALS. X, 12(December 2021) [10.1016/j.omx.2021.100103].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/445883
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