Results 51 to 60 of about 8,310 (226)

Optically stimulated luminescence of alexandrite

Optical Materials: X
We report the optically stimulated luminescence (OSL) of natural alexandrite (BeAl2O4:Cr3+) from Brazil. Luminescence was stimulated using 470 nm blue, 525 nm green and 850 nm infrared light.
Matheus C.S. Nunes, Neilo M. Trindade, Elisabeth M. Yoshimura, Makaiko L. Chithambo   +3 more
doaj   +1 more source

Single photon detection and signal analysis for high sensitivity dosimetry based on optically stimulated luminescence with beryllium oxide

EPJ Web of Conferences, 2018
Single photon detection applied to optically stimulated luminescence (OSL) dosimetry is a promising approach due to the low level of luminescence light and the known statistical behavior of single photon events.
Radtke J., Sponner J., Jakobi C., Schneider J., Sommer M., Teichmann T., Ullrich W., Henniger J., Kormoll T.   +8 more
doaj   +1 more source

Terrace reconstruction and long profile projection: a case study from the Solent river system near Southampton, England [PDF]

, 2012
River terrace sequences are important frameworks for archaeological evidence and as such it is important to produce robust correlations between what are often fragmentary remnants of ancient terraces.
Allen, Antoine, Ashton, Bailey, Banerjee, Bateman, Bateman, Bates, Bates, Bennett, Briant, Briant, Briant, Bridgland, Bridgland, Bridgland, Bridgland, Dade, Dale, Edwards, Francis F. Wenban-Smith, Gao, Gilbert D. Marshall, Harmar, Imbrie, Jain, Jean-Luc Schwenninger, Lake, Lewin, Martin R. Bates, Murray, Murray, Murray, Olley, Olley, Parks, Phillips, Prescott, Rebecca M. Briant, Rice, Shackley, Tebbens, Thrasher, Törnqvist, Veldkamp, Veldkamp, Veldkamp, Veldkamp, Velegrakis, Wallinga, Westaway, Westaway, White, Whiteman, Whiteman   +54 more
core   +1 more source

Optically stimulated luminescence dating reveals rate of beach ridge and sand spit depositions from the upper Gulf of Thailand [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2019
This study aimed to increase the understanding of the history of late Quaternary coastal evolution. An analysis was carried out on the optically stimulated luminescence (OSL) dates of 12 quartz-rich samples collected from the Chanthaburi paleosand spit ...
Peerasit Surakiatchai, Ekkachai Songsangworn, Santi Pailoplee, Montri Choowong, Sumet Phantuwongraj, Akkaneewut Chabangborn, Punya Charusiri   +6 more
doaj   +1 more source

Optically Stimulated Luminescence Dating Supports Central Arctic Ocean CM-scale Sedimentation Rates [PDF]

, 2003
This paper presents new results from Optically Stimulated Luminescence (OSL) dating on a sediment core raised from the crest of the Lomonosov Ridge in the central Arctic Ocean.
Backman, Jan, Jakobsson, Martin, Lovlie, Reidar, Murray, Andrew   +3 more
core   +3 more sources

Thermally Assisted Optically Stimulated Luminescence (TA-OSL) from Commercial BeO Dosimeters

Materials, 2023
BeO is another luminescent phosphor with very deep traps (VDTs) in its matrix that could not be stimulated using either thermal or conventional optical stimulations. The present study attempts to stimulate these traps using thermally assisted optically stimulated luminescence (TA-OSL), a combination of simultaneous thermal and optical stimulation that ...
openaire   +2 more sources

A review of the optically and thermally stimulated luminescence properties of aluminosilicates

Optical Materials: X
This paper reviews the main literature describing models for thermoluminescence (TL), optically stimulated luminescence (OSL) and radiophotoluminescence (RPL) in aluminosilicate materials, namely natural feldspar minerals and synthetic glasses.
S.W.S. McKeever
doaj   +1 more source

Luminescence dating approaches to reconstruct the formation of plaggic anthrosols [PDF]

SOIL
Plaggic anthrosols demonstrate the significant and widespread influence of agriculture on the landscape of northern Europe and testify to increased land-use intensity over the last millennium.
J. Choi, J. Choi, R. van Beek, R. van Beek, E. L. Chamberlain, E. L. Chamberlain, T. Reimann, H. Smeenge, A. van Oorschot, J. Wallinga, J. Wallinga   +10 more
doaj   +1 more source

Optically Stimulated Luminescence (OSL) Dating of Shallow Marine Sediments

The Quaternary Research (Daiyonki-Kenkyu), 2003
段丘堆積物の年代測定研究の一環として,光ルミネッセンス(OSL)年代測定法の浅海成堆積物への適用性を検討した.まず,石英の光曝・加熱・エッチング実験を実施し,この結果に基づく試料調整手順を示した.続いて,年代既知(酸素同位体ステージ5e～5c)の浅海成堆積物を対象として,付加線量法によるOSL年代測定を実施した.この結果,前浜堆積物および前浜～外浜遷移帯堆積物から,層位学的・地形学的に推定される離水年代とおおむね調和的な88～112kaのOSL年代値を得た.一方,後浜堆積物ではより新しく,外浜堆積物ではより古いOSL年代値が得られた.これらの結果から,前浜堆積物および前浜～外浜遷移帯堆積物中では光ブリーチングが成立していると考えられる.したがって,精度は粗いが ...
Ryuta Hataya, Masaaki Shirai
openaire   +2 more sources

Optically stimulated luminescence (OSL) as a chronometer for surface exposure dating [PDF]

Journal of Geophysical Research: Solid Earth, 2012
We pioneer a technique of surface‐exposure dating based upon the characteristic form of an optically stimulated luminescence (OSL) bleaching profile beneath a rock surface; this evolves as a function of depth and time. As a field illustration of this new method, the maximum age of a premier example of Barrier Canyon Style (BCS) rock art in Canyonlands ...
Sohbati, Reza, Murray, A.S., Chapot, Melissa, Jain, Mayank, Pederson, Joel   +4 more
openaire   +2 more sources