Scintillator Glasses

Leonard, Robert L.; Johnson, Jacqueline A.

doi:10.1007/978-3-319-93728-1_46

Cited by 4 publications

(6 citation statements)

References 81 publications

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“…In some cases, scintillators based on rare-earth (RE)-doped glass matrices were demonstrated to be a valid alternative to single crystals. − At first developed for remote real-time dosimetry in radiology and radiotherapy, − recently, scintillating silica fibers were explored as candidates for the dual-readout calorimetry approach in high-energy physics, − exploiting the simultaneous detection of scintillation and Cherenkov light as a possible way to improve the energy resolution of calorimetric detectors . Quartz fibers were also considered as wavelength shifters for the collection and transport of light in high-energy physics experiments …”

Section: Introductionmentioning

confidence: 99%

Trapping Mechanisms and Delayed Recombination Processes in Scintillating Ce-Doped Sol–Gel Silica Fibers

et al. 2021

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The carrier trapping and recombination mechanisms occurring in Ce-doped silica fibers, produced by a sol−gel technique, are investigated by combining temperature-dependent steady-state X-ray-excited luminescence, wavelength-and timeresolved scintillation measurements, and wavelength-resolved thermally stimulated luminescence, focusing especially on the temperature range from 10 to 320 K. The scintillation decay features a decay time of the order of tens of nanoseconds, characteristic of the parity-and spin-allowed 5d−4f radiative transition of Ce 3+ ions. In addition, a slow and complex decay contribution in the microsecond timescale is detected. We interpret these features as due to the radiative recombination at Ce centers of carriers freed from a continuous distribution of trapping sites in the forbidden gap as well as to the occurrence of an athermal tunneling recombination process between traps and Ce 3+ ions. This interpretation is reinforced by good agreement between independent evaluations of trap depths and lifetimes obtained by both the numerical analysis of scintillation time decays and thermally stimulated luminescence experiments.

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Section: Introductionmentioning

confidence: 99%

Trapping Mechanisms and Delayed Recombination Processes in Scintillating Ce-Doped Sol–Gel Silica Fibers

et al. 2021

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“…The excited electron may also decay in a nonradiative mode by transferring its energy to the bulk matrix through vibrations (phonons). If the energy surplus of the excited electron is much greater than the maximum phonon energy of the material, the system's relaxation requires a multiphonon decay, and the scintillating efficiency of the glass is reduced [7]. Rare-earth halides, such as CeBr, LaCl3Ce, and LuI3Ce are among the compounds with higher scintillation yield but are hygroscopic, exhibit fair mechanical properties, and require expensive production processes [8].…”

Section: Scintillationmentioning

confidence: 99%

Glass and Glass–Ceramic Photonic Materials for Sensors

Giardino

Pugliese

Janner

2021

PoliTO Springer Series

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Recent developments in sensors are pushing for optimized materials that can increase their usage, bolster their sensitivity and enable new and more efficient transduction mechanisms. We hereby review some of the most relevant applications of glasses and glass-ceramics for photonic sensors considering the recent trends and innovative approaches. This review covers from bulk glasses to thin films and from fiber optics to nanocrystal-based and their applications in sensing.

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“…[1][2][3] The increasing demand for efficient low-cost materials, associated with ease of forming and high-volume commercial production potential, has extended their range of applications. 4 In nuclear instrumentation, one of the central uses of rare-earth doped silicate glasses is within scintillators. 5 These offer desirable functionalities as optical materials, such as low refractive index and high visible-light optical transmittance.…”

Section: Introductionmentioning

confidence: 99%

“…5 These offer desirable functionalities as optical materials, such as low refractive index and high visible-light optical transmittance. 4 In addition, silicate glasses are known to have high thermal stabilities and good rare-earth element solubility, which makes them strong candidates to replace single crystal scintillators. 6 Glass scintillators are commercially available today 7 and are used for neutron radiography, neutron spectroscopy, and for α, β, X-rays and γ detection in extreme environments.…”

Section: Introductionmentioning

confidence: 99%