Ultraviolet cross-luminescence in ternary chlorides of alkali and alkaline-earth metals
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866914950693257216 |
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| author | Vanecek, Vojtech Paterek, Juraj Kral, Robert Kucerkova, Romana Babin, Vladimir Rohlicek, Jan Cala, Roberto Kratochwil, Nicolaus Auffray, Etiennette Nikl, Martin |
| author_facet | Vanecek, Vojtech Paterek, Juraj Kral, Robert Kucerkova, Romana Babin, Vladimir Rohlicek, Jan Cala, Roberto Kratochwil, Nicolaus Auffray, Etiennette Nikl, Martin |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2409_10823 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ultraviolet cross-luminescence in ternary chlorides of alkali and alkaline-earth metals Vanecek, Vojtech Paterek, Juraj Kral, Robert Kucerkova, Romana Babin, Vladimir Rohlicek, Jan Cala, Roberto Kratochwil, Nicolaus Auffray, Etiennette Nikl, Martin Instrumentation and Detectors Materials Science 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. |
| title | Ultraviolet cross-luminescence in ternary chlorides of alkali and alkaline-earth metals |
| topic | Instrumentation and Detectors Materials Science |
| url | https://arxiv.org/abs/2409.10823 |