Analysis of Ionospheric Scintillation Characteristics in Sub-Antarctica Region with GNSS Data at Macquarie Island [PDF]
Ionospheric scintillation has a great impact on radio propagation and electronic system performance, thus is extensively studied currently. The influence of scintillation on Global Navigation Satellite System (GNSS) is particularly evident, making GNSS ...
Kai Guo +3 more
doaj +6 more sources
One of the adverse impacts of scintillation on GNSS signals is the loss of lock status, which can lead to GNSS geometry and visibility reductions that compromise the accuracy and integrity of navigation performance.
Yang Liu +3 more
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Scintillation characteristics of chemically processed Ce:GAGG single crystals [PDF]
We investigated the correlation between the surface finish and luminescence properties of chemically polished cerium-doped single-crystal Gd3Al2Ga3O12 scintillators (Ce:GAGG), from the crystallographic perspective.
Chansun Park +6 more
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Multi-Frequency Simulation of Ionospheric Scintillation Using a Phase-Screen Model
A fast Monte Carlo technique to simulate equatorial ionospheric scintillation on global navigation satellite system signals is proposed. The algorithm uses a single-layer phase-screen model of the ionosphere and the scintillation is expressed as a ...
Fernando D. Nunes +2 more
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Observations and modeling of scintillation in the vicinity of a polar cap patch
Small-scale ionospheric plasma structures can cause scintillation in radio signals passing through the ionosphere. The relationship between the scintillated signal and how plasma structuring develops is complex.
Lamarche Leslie J. +2 more
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Remote sensing of tropospheric turbulence using GPS radio occultation [PDF]
Radio occultation (RO) measurements are sensitive to the small-scale irregularities in the atmosphere. In this study, we present a new technique to estimate tropospheric turbulence strength (namely, scintillation index) by analyzing RO amplitude ...
E. Shume, C. Ao
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Requirements of Scintillation Crystals with the Development of PET Scanners
Positron emission tomography (PET) is widely used in the diagnosis of tumors, cardiovascular system diseases, and neurological diseases. Scintillation crystals are an important part of PET scanners; they can convert γ photons into fluorescent photons to ...
Xin Yu +7 more
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Flexible composite scintillators based on ZnWO4 micro- and nanopowders [PDF]
Nano-sized and micro-sized ZnWO4 powders were obtained by different methods: hydrothermal synthesis with microwave heating, molten salt method, solid-state synthesis and сrushing of bulk crystals.
Tinkova V. S. +5 more
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COMPUTER SIMULATION OF GAMMA-RAY DETECTOR BASED ON SCINTILLATION CRYSTALS AND SILICON PHOTOMULTIPLIERS [PDF]
Subject of Research. The paper considers the principles of realization of the gamma-radiation detector based on a silicon photoelectron multiplier and a scintillation crystal with the use of an optical matching scheme. Method.
Bokatyi I.O. +5 more
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Light Yield Response of Neutron Scintillation Screens to Sudden Flux Changes
We performed a study of the initial and long term light yield of different scintillation screen mixtures for neutron imaging during constant neutron irradiation.
Tobias Neuwirth +3 more
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