Results 141 to 150 of about 3,288 (175)

Intercomparison study of sensitivities from commercial OSL readers and a newly developed OSL reader

Radiation Protection Dosimetry, 2023
Abstract In this study, we compared the sensitivities of a newly designed OSL system with two commercial systems, performing OSL readouts of Al2O3:C irradiated with doses ranging from mGy to a few Gy. It is our first prototype, and we used a cluster of three blue LEDs (5 W each and approximately wavelength 450 nm) for the optical ...
Rodrigo, de Lazzari, Edgar H, Souza, Susan Y, Zanetti, Emilson R, Viana, Anna Lmc, Malthez   +4 more
openaire   +2 more sources

New light on OSL

Quaternary Science Reviews, 1999
Abstract We have tested recently released green and blue light emitting diodes (LEDs) for the optical stimulation of quartz, with a view to using these in routine optically stimulated luminescence (OSL) dating and retrospective dosimetry. We compare results obtained with blue LEDs with those obtained using broad-band blue/green light filtered from a ...
Bøtter-Jensen, L., Mejdahl, V., Murray, A. S.   +2 more
openaire   +2 more sources

A simple transformation for converting CW-OSL curves to LM-OSL curves

Radiation Measurements, 2000
Abstract A simple mathematical transformation is introduced to convert from OSL decay curves obtained in the conventional way to those obtained using a linear modulation technique based on a linear increase of the stimulation light intensity during OSL measurement. The validity of the transformation was tested by the IR-stimulated luminescence curves
openaire   +2 more sources

OSL dosimeters for dental panoramic radiography

Applied Radiation and Isotopes, 2018
The aim of the present work is to determine dosimetric characteristics of commercial optically stimulated luminescence dosimeter (OSLD) to estimate equivalent dose in the patient undergoing panoramic radiography procedure. Digital panoramic unit "Instrumentarium OP200D" was used.
J G, Gutiérrez-Marquez, L Y, Avalos-Piña, A, López-Valencia, L L, Palacios-Pérez, H R, Vega-Carrillo, T, Rivera-Montalvo   +5 more
openaire   +2 more sources

Cosmogenic and OSL data

2020
Cosmogenic Be-10 and optically stimulated luminescence data from fault-displaced constructional/depositional geomorphic ...
Gold, Peter, Behr, Whitney M., Rockwell, Thomas K., Figueiredo, Paula M/., Figueiredo, Paula M., Fletcher, John M.   +5 more
openaire   +1 more source

Different components of the quartz OSL signal resolved by the TM-OSL method

Radiation Measurements, 2019
Abstract Recently it has been shown that the thermally modulated optically stimulated luminescence (TMOSL) method, which is based on optical stimulation during linear heating of the sample, can be used successfully to extract the individual OSL components during the experimental stage. Such a possibility is important in OSL dating of sediments, where
P. Palczewski, A. Chruścińska
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

Minimizing feldspar OSL contamination in quartz UV-OSL using pulsed blue stimulation

Radiation Measurements, 2008
Natural sediments usually contain a mix of quartz and feldspar. Because these two minerals have different luminescence properties and record different natural doses it is normally necessary to physically separate them before measurement. This paper investigates the potential of using pulsed stimulation to separate the optically stimulated luminescence ...
Thomsen, K.J., Jain, M., Murray, A.S., Denby, P.M., Roy, N., Bøtter-Jensen, L.   +5 more
openaire   +2 more sources

Multi-OSL-thermochronometry of feldspar

Quaternary Geochronology, 2016
Abstract Optically stimulated luminescence (OSL)-thermochronometry has recently been proposed as a tool capable of resolving cooling histories from the top 1–2 km of the Earth's crust. This is beyond the resolution of most low-temperature thermochronometric systems, and it offers a new opportunity to investigate the interactions between climate ...
King, G.E., Herman, F., Lambert, R., Valla, P.G., Guralnik, B.   +4 more
openaire   +2 more sources

Thermally assisted OSL (TA-OSL) from various luminescence phosphors; an overview

Radiation Measurements, 2016
Abstract The current status of the results on the thermally assisted optically stimulated luminescence (TA-OSL) signal performed on various naturally occurring as well as artificial luminescent phosphors is described. TA-OSL of anion deficient alumina doped with carbon and quartz has been reported to be effectively used towards dosimetry purposes ...
openaire   +1 more source