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| Description
| - Here we present preliminary results of time-resolved spectroscopic studies of novel scintillation materials using an advanced instrumentation. The temporal response of visible luminescence excited by ionizing radiation is an important property of a scintillator. Namely, a presence of slow decay components caused by defects in the crystal lattice can significantly contribute to the total luminescence output and thus limit the applicability of a scintillator in high-speed detectors of ionizing radiation. Therefore, the assessment of temporal characteristics of the scintillation response is of great importance in scintillator research. A previously reported time-domain spectrometer utilizing a compact pulsed source of extreme ultraviolet (XUV) radiation was used for the measurement of UV-VIS luminescence decays. The XUV source is based on laser-produced plasma from a nitrogen gas-puff target. The plasma is induced by high energy pulses from a Nd:YAG laser (1064 nm, 0.7 J, 4 ns). The source was operated at 2 Hz. A 0.8 µm thick Ti foil filter was used in order to obtain quasi monochromatic XUV radiation with 2.88 nm wavelength (430 eV). It was shown previously that the laser-produced plasma source of XUV radiation can be used for time-resolved characterization of solid state scintillators with several advantages. The applicability of our spectrometer was demonstrated by measurements of luminescence temporal profiles on rather well-known aluminum garnet-based scintillators. In this contribution we present original data on newly developed specimens, namely lithium calcium aluminum fluoride (LiCAF) single crystals, undoped and doped by Mn, Ce, and Eu, respectively. These materials are of importance for new generation of thermal neutron scintillation detectors.
- Here we present preliminary results of time-resolved spectroscopic studies of novel scintillation materials using an advanced instrumentation. The temporal response of visible luminescence excited by ionizing radiation is an important property of a scintillator. Namely, a presence of slow decay components caused by defects in the crystal lattice can significantly contribute to the total luminescence output and thus limit the applicability of a scintillator in high-speed detectors of ionizing radiation. Therefore, the assessment of temporal characteristics of the scintillation response is of great importance in scintillator research. A previously reported time-domain spectrometer utilizing a compact pulsed source of extreme ultraviolet (XUV) radiation was used for the measurement of UV-VIS luminescence decays. The XUV source is based on laser-produced plasma from a nitrogen gas-puff target. The plasma is induced by high energy pulses from a Nd:YAG laser (1064 nm, 0.7 J, 4 ns). The source was operated at 2 Hz. A 0.8 µm thick Ti foil filter was used in order to obtain quasi monochromatic XUV radiation with 2.88 nm wavelength (430 eV). It was shown previously that the laser-produced plasma source of XUV radiation can be used for time-resolved characterization of solid state scintillators with several advantages. The applicability of our spectrometer was demonstrated by measurements of luminescence temporal profiles on rather well-known aluminum garnet-based scintillators. In this contribution we present original data on newly developed specimens, namely lithium calcium aluminum fluoride (LiCAF) single crystals, undoped and doped by Mn, Ce, and Eu, respectively. These materials are of importance for new generation of thermal neutron scintillation detectors. (en)
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| Title
| - Time-resolved luminescence spectroscopy of solid-state scintillators excited by nanosecond XUV pulses
- Time-resolved luminescence spectroscopy of solid-state scintillators excited by nanosecond XUV pulses (en)
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| skos:prefLabel
| - Time-resolved luminescence spectroscopy of solid-state scintillators excited by nanosecond XUV pulses
- Time-resolved luminescence spectroscopy of solid-state scintillators excited by nanosecond XUV pulses (en)
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| skos:notation
| - RIV/68407700:21460/12:00198848!RIV13-MSM-21460___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21460/12:00198848
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - extreme ultraviolet; time-resolved spectroscopy; scintillator (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Brůža, Petr
- Pánek, Dalibor
- Fidler, Vlastimil
- Nikl, M.
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| http://localhost/t...ganizacniJednotka
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