Searched for: author%3A%22bos%2C+A.J.J.%22
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Malkamäki, Marja (author), bos, A.J.J. (author), Dorenbos, P. (author), Lastusaari, Mika (author), Rodrigues, Lucas C.V. (author), Swart, Hendrik C. (author), Hölsä, Jorma (author)
BaAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>,Dy<sup>3+</sup> is related, both by structure and luminescence, to one of the best persistent luminescent phosphors, SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>,Dy<sup>3+</sup>. At room temperature (RT), the green persistent emission of BaAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>,Dy<sup>3+<...
journal article 2020
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Dobrowolska, Anna (author), bos, A.J.J. (author), Dorenbos, P. (author)
LiLuSiO<sub>4</sub>:Ce and LiLuSiO<sub>4</sub>:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu<sup>2+</sup> in many aspects. The influence of the synthesis conditions, Ce and Tm concentration,...
journal article 2019
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Kouwenberg, J.J.M. (author), Wolterbeek, H.T. (author), Denkova, A.G. (author), bos, A.J.J. (author)
Background: While alpha microdosimetry dates back a couple of decades, the effects of localized energy deposition of alpha particles are often still unclear since few comparative studies have been performed. Most modern alpha microdosimetry studies rely for large parts on simulations, which negatively impacts both the simplicity of the...
journal article 2018
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Kouwenberg, J.J.M. (author), Kremers, G. J. (author), Slotman, J. A. (author), Wolterbeek, H.T. (author), Houtsmuller, A.B. (author), Denkova, A.G. (author), bos, A.J.J. (author)
Structured illumination microscopy (SIM) for the imaging of alpha particle tracks in fluorescent nuclear track detectors (FNTD) was evaluated and compared to confocal laser scanning microscopy (CLSM). FNTDs were irradiated with an external alpha source and imaged using both methodologies. SIM imaging resulted in improved resolution, without...
journal article 2018
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Kulesza, Dagmara (author), bos, A.J.J. (author), Zych, Eugeniusz (author)
Thermoluminescent properties and energy storage characteristics of Lu<sub>2</sub>O<sub>3</sub>:Tb,M (M = Hf, Ti, Nb) sintered ceramics induced by ionizing radiation are presented and discussed. Dose-response dependence, radiation hardness and fading are studied. A linearity of the former exceeding seven orders of magnitude is confirmed for Lu...
journal article 2018
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Kouwenberg, J.J.M. (author), de Pooter, J. A. (author), Wolterbeek, H.T. (author), Denkova, A.G. (author), bos, A.J.J. (author)
To answer the need for better tools for alpha radiation radiobiology and microdosimetry research, a novel irradiation setup based on a honeycomb collimator, in combination with Fluorescent Nuclear Track Detectors (FNTD) for alpha radiation dosimetry and spectroscopy, was introduced. FNTDs are a novel type of small, crystalline detector that...
journal article 2018
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Ueda, J. (author), Meijerink, Andries (author), Dorenbos, P. (author), bos, A.J.J. (author), Tanabe, Setsuhisa (author)
We investigated thermally activated ionization and thermally activated crossover as the two possibilities of quenching of 5d luminescence in Pr3+-doped Y3Al5-xGaxO12. Varying the Ga content x gives the control over the relative energy level location of the 5d and 4f2:PJ3 states of Pr3+ and the host conduction band (CB). Temperature-dependent...
journal article 2017
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bos, A.J.J. (author)
Thermally stimulated luminescence (TSL) is known as a technique used in radiation dosimetry and dating. However, since the luminescence is very sensitive to the defects in a solid, it can also be used in material research. In this review, it is shown how TSL can be used as a research tool to investigate luminescent characteristics and underlying...
journal article 2017
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Luo, H. (author), bos, A.J.J. (author), Dorenbos, P. (author)
Two different charge carrier trapping processes have been investigated in RE2O2S:Ln3+ (RE = La, Gd, Y, and Lu; Ln = Ce, Pr, and Tb) and RE2O2S:M (M = Ti4+ and Eu3+). Cerium, praseodymium and terbium act as recombination centers and hole trapping centers while host intrinsic defects provide the electron trap. The captured electrons released from...
journal article 2017
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Kulesza, Dagmara (author), Bolek, Paulina (author), bos, A.J.J. (author), Zych, Eugeniusz (author)
Ceramics of Lu2O3 activated with either Tb3+ or Pr3+ and co-doped with one of the transition metal ions – Ti, Hf or Nb – were investigated for their energy storage properties. Photoluminescence, thermoluminescence (TL) and optically stimulated luminescence spectra were recorded and discussed together with thermoluminescent glow curves. The Pr3+...
journal article 2016
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Luo, H. (author), Ning, Lixin (author), Dong, Yuanyuan (author), bos, A.J.J. (author), Dorenbos, P. (author)
Photoluminescence excitation (PLE) and emission spectra (PL) of undoped (Sr, Ca)<sub>3</sub>(Y, Lu)<sub>2</sub>Ge<sub>3</sub>O<sub>12</sub> as well as Eu<sup>3+</sup>- and Ce<sup>3+</sup>-doped samples have been investigated. The PL spectra show that Eu<sup>3+</sup> enters into both dodecahedral (Ca, Sr) and octahedral (Y, Lu) sites. Ce<sup>3...
journal article 2016
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Van den Eeckhout, K. (author), Bos, A.J.J. (author), Poelman, D. (author), Smet, P.F. (author)
Persistent luminescence or afterglow is caused by a gradual release of charge carriers from trapping centers. The energy needed to release these charge carriers is determined by the trap depths. Knowledge of these trap depths is therefore crucial in the understanding of the persistent luminescence mechanism. Unfortunately, the trap depths in...
journal article 2013
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You, F. (author), Bos, A.J.J. (author), Shi, Q. (author), Huang, S. (author), Dorenbos, P. (author)
The thermoluminescence properties of Y3Al5O12 (YAG) doped with an electron donor lanthanide (Ce3+, Pr3+, or Tb3+) together with an electron acceptor lanthanide (Yb3+ or Eu3+) were studied with the aim to locate the energy levels of each divalent and each trivalent lanthanide within the band gap. The activation energies needed to liberate...
journal article 2012
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Botterman, J. (author), Van den Eeckhout, K. (author), Bos, A.J.J. (author), Dorenbos, P. (author), Smet, P.F. (author)
In this work we study the persistent luminescence properties of europium-doped alkaline earth silicon oxynitrides (CaSi2O2N2, SrSi2O2N2 and BaSi2O2N2). All compounds show afterglow emission, with an emission spectrum which is similar to the steady state photoluminescence. The afterglow decay time for BaSi2O2N2:Eu and SrSi2O2N2:Eu is about 50 and...
journal article 2012
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Dorenbos, P. (author), Bos, A.J.J. (author), Poolton, N.R.J. (author)
We studied charge carrier trapping, detrapping, and recombination phenomena in Ce3+ doped YPO4, codoped with Sm3+, Dy3+, or Tm3+. Ce ions trap the holes and Sm, Dy, and Tm trap electrons created during x-ray irradiation. By means of red to infrared stimulation, the trapped electrons can be back transferred to Ce leading to shorter wavelength Ce3...
journal article 2010
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Poolton, N.R.J. (author), Kars, R.H. (author), Wallinga, J. (author), Bos, A.J.J. (author)
The significance and extent of band-tail states in the luminescence and dosimetry properties of natural aluminosilicates (feldspars) is investigated by means of studies using low temperature (10 K) irradiation and optically stimulated luminescence (OSL) stimulation spectroscopy, and thermoluminescence (TL) in the range 10–200 K, made in...
journal article 2009
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Krumpel, A.H. (author), Bos, A.J.J. (author), Bessière, A. (author), Van der Kolk, E. (author), Dorenbos, P. (author)
A detailed and systematic electron trapping study was conducted in the scientifically important wide band-gap materials LuPO4 and YPO4 doubly doped with Ce3+ and Ln3+ (Ln=Sm, Dy, Ho, Er, Tm). By using vacuum-ultraviolet luminescence spectroscopy and detailed thermoluminescence spectroscopy it was possible to establish by two independent methods...
journal article 2009
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Bos, A.J.J. (author), Wallinga, J. (author)
We present mathematical descriptions of optically stimulated luminescence (OSL) signals under linearly, hyperbolically, exponentially, and reciprocally increasing stimulation intensity for a one-trap one-recombination-center model assuming charge transfer governed by first-order kinetics. Depending on the stimulation mode, the OSL signal can be...
journal article 2009
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Drozdowski, W. (author), Dorenbos, P. (author), Drozdowska, R. (author), Bos, A.J.J. (author), Poolton, N.R.J. (author), Tonelli, M. (author), Alshourbagy, M. (author)
In this paper we present the studies performed on a set of Lu3Al5O12:Pr (LuAG:Pr) crystals with praseodymium concentration between 1.5 and 10%, grown by the micro-pulling-down (muPD) technique. The research comprises the measurements of X-ray excited emission spectra and 137Cs gamma-ray pulse height spectra in a range from 78 to 600 K, and...
journal article 2009
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Krumpel, A.H. (author), Van der Kolk, E. (author), Zeelenberg, D. (author), Bos, A.J.J. (author), Krämer, K.W. (author), Dorenbos, P. (author)
Photo- and thermoluminescence (TL) spectra of NaLaF4:Ln3+ (Ln = Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm) and NaLaF4:Ce3+, Ln3+ (Ln = Nd,Sm,Ho,Er,Tm) are presented and used together with the empirical Dorenbos model in order to establish the 4f energy level positions of all tri- and divalent lanthanide ions doped in NaLaF4. The information will be...
journal article 2008
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