Results 141 to 150 of about 965 (184)

A theoretical model for a new dating protocol for quartz based on thermally transferred OSL (TT-OSL)

Radiation Measurements, 2008
Abstract Recently a new dating procedure has been suggested, which is based on the thermally transferred optically stimulated luminescence (TT-OSL) signal that is measured after irradiated quartz is optically bleached and then preheated. Experimentally the TT-OSL signal was measured after a high temperature preheat ( 260 ∘ C for 10 s ...
Reuven Chen, Vasilis Pagonis, A G Wintle   +2 more
exaly   +2 more sources

Testing a single-aliquot protocol for recuperated OSL dating

Radiation Measurements, 2007
Abstract A single-aliquot dating procedure for measuring the equivalent dose in fine-grained quartz extracted from Chinese loess has been developed and tested. The optically stimulated luminescence (OSL) signal used for construction of the dose–response curve is termed the recuperated OSL (ReOSL) signal; it is the difference between the thermally ...
A G Wintle
exaly   +2 more sources

The detection filter choice of the OSL dating instrument

Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology, 2011
In this paper, the dating principle of the optically stimulated luminescence is introduced, the construction of the optically stimulated luminescence (OSL) dating system, the composition of the detection filters, and the select method of the OSL dating instrument detection filters.
Ping Liang, Guang-xiang Wang, Ji-hua Wen
openaire   +1 more source

Thermal pre-treatment in the OSL dating of quartz: is it necessary?

Radiation Protection Dosimetry, 2006
Thermal treatment before optically stimulated luminescence (OSL) measurement is an important step in all widely accepted OSL dating procedures used with quartz. This is a major constraint on the design of a portable luminescence instrument for estimating ages in the field.
Ankjærgaard, C., Murray, A. S.; id_orcid 0000-0001-5559-1862, Denby, P. M.   +2 more
openaire   +3 more sources

OSL dating of sediments from deserts in northern China

Quaternary Geochronology, 2007
Abstract Aeolian samples from deserts in northern China were studied using the optically stimulated luminescence (OSL) of quartz and potassium (K) feldspar separates. K-feldspar has shown advantages over quartz for dating samples younger than 100 years, due to its more homogeneous equivalent dose ( D e ) values, higher internal dose rate and higher ...
Sun, J, Chen, YY, Yang, LR, Li, B, Li, SH   +4 more
openaire   +4 more sources

OSL dates for the ancient geometric earthworks of Kazakhstan

Archaeological Research in Asia, 2016
Abstract Large-scale earthworks ranging from 90 m to over 400 m in length, recently discovered in northern Kazakhstan, have come to be commonly named as the “Geoglyphs of Turgai”. These monuments mainly have been found in northern Kazakhstan within the Turgai deflection.
G. Motuzaite Matuzeviciute, A.V. Logvin, I. Shevnina, A.M. Seitov, J. Feng, L. Zhou   +5 more
openaire   +1 more source

OSL properties of NaCl relative to dating and dosimetry

Radiation Measurements, 2000
Abstract The luminescence properties of NaCl are discussed. Attention is focussed predominantly upon the optically stimulated luminescence (OSL) signal (UV emission) of NaCl (420–560 nm stimulation). The results from experiments relevant to geological dating applications, such as signal resetting, dose response and thermal stability, are described ...
R.M. Bailey, G. Adamiec, E.J. Rhodes
openaire   +1 more source

Simultaneous OSL and TL dating of sediments

Quaternary Science Reviews, 2001
Abstract This paper presents examples of application of simultaneous OSL and TL dating to samples from two different sedimentary environments that usually give rise to a number of interpretation problems. The presented method provides means of quantifying the effectiveness of bleaching of grains during depositional processes and consequently enables ...
openaire   +1 more source

OSL Dating in Archaeology

2006
The OSL (optically stimulated luminescence) dating method exploits dosimetric properties of grains of minerals naturally occurring in sediments and man-made materials.
openaire   +1 more source

Progress towards a polymineral single-aliquot OSL dating procedure

Radiation Protection Dosimetry, 2006
Published single-aliquot regenerative-dose (SAR) procedures for quartz use a 'cutheat' different from the pre-heat. In contrast, previous work has shown that the SAR procedure can be used to correct for sensitivity changes exhibited by feldspars if the cutheat is equal to the pre-heat. In this paper, a procedure that corrects for sensitivity changes in
M W, Blair, E G, Yukihara, S W S, McKeever   +2 more
openaire   +2 more sources