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Related papers: Properties of lithium aluminate for application as…

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A new approach to three-dimensional (3D) dosimetry based on optically-stimulated luminescence (OSL) is presented. By embedding OSL-active particles into a transparent silicone matrix (PDMS), the well-established dosimetric properties of an…

Two rods made from sol-gel silica have been doped with Ce ions or co-doped with Ce and Tb ions respectively. First, a thermoluminescence (TL) characterization of the trapping and luminescence parameters is carried out to understand the…

In radiation oncology, inter-fractional dosimetry is often performed with luminescent dosimeters to verify the accurate delivery of a plan and ensure patient safety. Optically stimulated luminescent detectors (OSLDs) are the most commonly…

Medical Physics · Physics 2024-07-23 H. Davis , J. Siebers , K. Wijesooriya , M. Mistro

Lithium aluminate (LiAlO2) polycrystalline material showing high OSL sensitivity and linear dose response was prepared at IFJ Krakow. The kinetic parameters of OSL and TL processes were evaluated using various experimental techniques:…

Instrumentation and Detectors · Physics 2014-02-26 A. Twardak , P. Bilski , B. Marczewska , W. Gieszczyk

This paper presents selected optically stimulated luminescence properties of Lu2SiO5:Ce single crystalline films grown using Liquid Phase Epitaxy technique. Comparison of continuous wave optically stimulated luminescence decay curves under…

Instrumentation and Detectors · Physics 2014-02-26 A. Twardak , P. Bilski , Y. Zorenko , V. Gorbenko , O. Sidletskiy

Resistors from mobile phones, usually located near the human body, are considered as individual dosimeters of ionizing radiation in emergency situations. The resistors contain Al2O3, which is optically stimulated luminescence (OSL) material…

Instrumentation and Detectors · Physics 2014-02-24 Anna Mrozik , Barbara Marczewska , Pawel Bilski , Wojciech Gieszczyk

We report the optical and dielectric properties in hafnium (Hf)-doped lithium niobate (LN) crystals. We investigated samples of congruent composition with various doping concentration varying from 0 to 8 mol%. The clamped and unclamped…

Lithium niobate, LiNbO3, is an important technological material with good electro-optic, acousto-optic, elasto-optic, piezoelectric and nonlinear properties. Doping LiNbO3 with hafnium, Hf has been shown to improve the resistance of the…

Materials Science · Physics 2015-06-26 Romel M. Araujo , Mario E. G. Valerio , Robert A. Jackson

First principles calculations through density functional theory (DFT)+$U$ method were performed to assess the effect of Li interstitial doping on the optoelectronic properties of NiO and of cubic, hexagonal, and monoclinic WO$_3$. The…

We show that mixed-phase titanium dioxide (TiO2) can be effectively employed as an unconventional, inorganic, dual-emitting and ratiometric optical sensor of O2. Simultaneous availability of rutile and anatase TiO2 PL and their peculiar…

Materials Science · Physics 2016-08-03 S. Lettieri , D. K. Pallotti , F. Gesuele , P. Maddalena

Semiconductor nanoparticles (quantum dots) were studied in the context of liquid scintillator development for upcoming neutrino experiments. The unique optical and chemical properties of quantum dots are particularly promising for the use…

Instrumentation and Detectors · Physics 2015-06-16 C. Aberle , J. J. Li , S. Weiss , L. Winslow

The status of the LINrem project is presented, focusing on the development of innovative neutron dosimeters with enhanced energy sensitivity, time resolution, and portability. Designed to meet the technical demands of radiation protection…

Yttrium calcium aluminate, with the formula CaYAl3O7, has been extensively researched due to its remarkable luminescent properties when doped or co-doped. Additionally, it exhibits exceptional piezoelectric properties at high temperatures.…

Materials Science · Physics 2024-11-12 Luana Hildever , José Laurentino , José Araújo , Francisco Estrada , José Holanda

Thermoluminescence (TL) characteristics for LiF:Mg,Cu,P, and CaSO$_4$:Dy under the homogeneous field of X-ray beams of diagnostic irradiation and its verification using thermoluminescence dosimetry is presented. The irradiation were…

Lanthanide-doped Y$_{2}$SiO$_{5}$ microcrystals were prepared using the solution combustion, solid state and sol-gel synthesis techniques. Of these, the sol-gel method yields the most reliable and high-quality X2 phase Y$_{2}$SiO$_{5}$…

Materials Science · Physics 2024-09-26 Jamin L. B. Martin , Lily F. Williams , Michael F. Reid , Jon-Paul R. Wells

Radiation dosimetry systems are complex systems, comprised of a milieu of components, designed for determining absorbed dose after exposure to ionizing radiation. Although many materials serve as absorbing media for measurement,…

Medical Physics · Physics 2013-09-12 Luisiana X. Cundin

Doping lithium-ion battery electrode materials LiMO$_2$ (M = Co, Ni, Mn) with impurities has been shown to be an effective way to optimize their electrochemical properties. Here, we report a detailed first-principles study of layered oxides…

Materials Science · Physics 2017-12-07 Khang Hoang

LiF:Mg,Ti and LiF:Mg,Cu,P are well known thermoluminescence (TL) dosimetry materials since many years. A few years ago their properties seemed well known and it was widely believed that they are not suitable for the measurement of doses…

Instrumentation and Detectors · Physics 2014-02-27 Barbara Obryk , Helen J. Khoury , Vinicius S. de Barros , Pedro L. Guzzo , Paweł Bilski

Successive ionic layer adsorption and reaction (SILAR) method is based on the adsorption and reaction of the ions in the cationic solution and the ionic solution, respectively. This method is simple, inexpensive, large-scale deposition,…

Applied Physics · Physics 2022-09-28 Ilyass Jellal , Khalid Nouneh , Jaroslaw Jedryka , Denis Chaumont , Jamal Naja

In this study structural and mechanical properties of a 1 um thick Al2O3 coating, deposited on 316L stainless steel by Pulsed Laser Deposition (PLD), subjected to high energy ion irradiation were assessed. Mechanical properties of pristine…

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