Results 151 to 160 of about 14,369 (217)

Optically stimulated luminescence (OSL) study of synthetic stishovite

Radiation Measurements, 2000
Abstract Optically stimulated luminescence (OSL) of synthetic stishovite was investigated for a future dating technique of meteor impact craters. Luminescence around 330 nm was measured on the γ-ray irradiated stishovite under two stimulating light sources of infrared laser (830 nm) and blue light emitting diode set (470 nm).
A. Tani, C. Yamanaka, M. Ikeya, O. Ohtaka, M. Takada, T. Katsura   +5 more
openaire   +1 more source

A two-stage thermally-assisted optically stimulated luminescence (TA-OSL)

International Journal of Science and Research Archive, 2022
A two-stage thermally-assisted optically stimulated luminescence model is studied. Electrons are thermally and optically raised from the ground state to an excited state and there after they are thermally raised from the excited state to the conduction band.
null Dianabasi Nkereuwem Akpan, null Mfoniso Udofia Aka, null Christopher Iniabasi Effiong, null Sunday Samuel Ekpo   +3 more
openaire   +1 more source

Desiccants for retrospective dosimetry using optically stimulated luminescence (OSL)

Radiation Measurements, 2015
Optically stimulated luminescence (OSL) was used to test different kinds of desiccants for their potential use in retrospective dosimetry. Desiccants are used for the purpose of absorbing liquids and can be found in a number of items which may be found in the immediate environment of a person, including hand bags, drug packages, and the vehicles of ...
Therése Geber-Bergstrand, Christian Bernhardsson, Maria Christiansson, Sören Mattsson, Christopher L. Rääf   +4 more
openaire   +1 more source

Development of new optically stimulated luminescence (OSL) neutron dosimeters

Radiation Measurements, 2008
Abstract This paper demonstrates the possibility of using neutron converters incorporated into Al 2 O 3 : C dosimeters to produce new neutron-sensitive OSL dosimeters suitable for personal monitoring. A comparison between different neutron converters indicate that lithium-based compounds (6LiF and Li 2 6 ...
E.G. Yukihara, J.C. Mittani, F. Vanhavere, M.S. Akselrod   +3 more
openaire   +1 more source

Thermally modulated optically stimulated luminescence (TM-OSL) of quartz

Journal of Luminescence, 2018
Abstract It has recently been shown in computer simulations of the OSL process that increasing the temperature during optical stimulation allows the probability of electron excitation from traps to the conduction band to be modulated. This, in turn, facilitates the efficient separation of individual OSL components. A result of the thermally modulated
A. Chruścińska, A. Szramowski
openaire   +1 more source

Optically stimulated luminescence (OSL) and thermally assisted OSL in Eu2+ – Doped BaSO4 phosphor

Radiation Measurements, 2014
Abstract BaSO4:Eu2+ phosphor has been investigated for its photoluminescence (PL), thermoluminescence (TL), TL kinetics, optically stimulated luminescence (OSL) and thermally assisted OSL (TA-OSL) response. PL spectra showed the characteristic emission of Eu2+ ion at 375 nm when excited by 320 nm. The luminescence lifetime has been measured as 40 and
B.C. Bhatt, Anuj Soni, G.S. Polymeris, D.K. Koul, D.K. Patel, S.K. Gupta, D.R. Mishra, M.S. Kulkarni   +7 more
openaire   +1 more source

Modeling TL-like thermally assisted optically stimulated luminescence (TA-OSL)

Radiation Measurements, 2013
Abstract In this work we present a model for thermally assisted optically stimulated luminescence (TA-OSL), an effect previously observed in experimental work. The model consists of one trapping state with an excited state beneath the conduction band and one kind of recombination center.
R. Chen, V. Pagonis
openaire   +1 more source

Use of optically stimulated luminescence (OSL) in the detection of irradiated spices

Radiation and Environmental Biophysics, 2021
In this study, the validity of using the optically stimulated luminescence (OSL) technique as a scanning method for the detection of irradiated foodstuffs was investigated. Gamma-irradiated thyme, mint and clove samples were stimulated with a continuous wave blue light (CW-OSL) and their OSL signal sensitivity and stability properties were measured ...
openaire   +2 more sources

Independent evaluation of optically stimulated luminescence (OSL) 'dot' dosemeters for environmental monitoring

Radiation Protection Dosimetry, 2010
Optically stimulated luminescence (OSL) 'dot' dosemeters (manufactured by Landauer®) are reported to have a high degree of environmental stability, high level of sensitivity and provide wide range of dose measuring capabilities from 0.05 mGy to 100 Gy.
Bindu, Timilsina, Thomas F, Gesell
openaire   +2 more sources

Optically Stimulated Luminescence (Osl) Characteristics of Four Fluorite Samples Under Green Light Stimulation

Applied Radiation and Isotopes
This study investigates the OSL properties of four natural fluorite color varieties (green, purple, blue-yellow banded and yellow) under green light stimulation. Thermoluminescence reveals two peaks, with the green sample showing the strongest glow. OSL exhibits a fast initial decay followed by a slower one, with phototransfer observed in purple and ...
Juan Mittani, Rene Rocca
openaire   +2 more sources