Results 41 to 50 of about 29,074 (278)

Cooling and trapping of ultracold strontium isotopic mixtures [PDF]

open access: yesPhysical Review A, 2005
We present the simultaneous cooling and trapping of an isotopic mixture in a magneto-optical trap and we describe the transfer of the mixture into a conservative, far-off resonant dipole trap. The mixture is prepared with a new technique that applies to intermediate and heavy alkaline earth like atoms.
POLI, NICOLA   +5 more
openaire   +4 more sources

Strontium isotope (87Sr/86Sr) data from archaeological sites in Utah, USA

open access: yesData in Brief, 2019
The information presented here includes the results of strontium isotope analysis on 75 baseline samples from nine Fremont sites in Utah. The baseline samples are of lagomorphs and rodents with limited foraging ranges.
Spencer F.X. Lambert
doaj   +1 more source

Isotope shifts of natural Sr+ measured by laser fluorescence in a sympathetically cooled Coulomb crystal [PDF]

open access: yes, 2014
We measured by laser spectroscopy the isotope shifts between naturally-occurring even-isotopes of strontium ions for both the $5s\,\,^2S_{1/2}\to 5p\,\,^2P_{1/2}$ (violet) and the $4d\,\,^2D_{3/2}\to 5p\,\,^2P_{1/2}$ (infrared) dipole-allowed optical ...
Dubessy, Romain   +5 more
core   +4 more sources

The use of stable Cs and Sr as proxies for the estimation of radionuclide soil-plant transfer factors [PDF]

open access: yesЯдерна фізика та енергетика
Transfer factors are key inputs for modelling the transport of radionuclides in the environment and for assessment of risk to humans and wildlife. However, for many combinations of soil conditions, plant species (products), and radionuclides, such ...
S. Levchuk   +3 more
doaj   +1 more source

New Isotopes of Strontium and Barium [PDF]

open access: yesNature, 1931
APPLICATION of high resolution to accelerated anode rays has now provided improved mass-spectra of these two elements. Strontium shows a third isotope 87 in addition to those already observed. Results with barium were only obtained with great difficulty.
openaire   +1 more source

Strontium and oxygen isotopes to trace mobility routes during the Bell Beaker period in the north of Spain

open access: yesScientific Reports, 2021
Strontium and oxygen isotopes of individuals from El Hundido and Valdescusa (north of Spain) sites, corresponding to the Bell Beaker culture, were analysed in order to determine mobility patterns and provenance areas.
L. A. Ortega   +5 more
doaj   +1 more source

Oxygen Isotope Analysis of Human Bone Phosphate Evidences Weaning Age in Archaeological Populations [PDF]

open access: yes, 2015
Acknowledgements With special thanks to Jean-Jacques Hublin and the MPI-EVA; to Annabell Reiner (MPI-EVA) and Bernd Steinhilber (Universitat Tubingen) for technical support;and to the Deutscher Akademischer Austausch Dienst for financial support to KB ...
Alvarez   +129 more
core   +1 more source

87Sr/86Sr Isotope Ratio as a Tool in Archaeological Investigation: Limits and Risks

open access: yesQuaternary
During the last forty years, the use of strontium isotopes in archaeology and biogeochemical research has spread widely. These isotopes, alone or in combination with others, can contribute to trace past and present environmental conditions.
Mattia Rossi   +2 more
doaj   +1 more source

Strontium isotope stratigraphy of the Cretaceous

open access: yesGeological Society, London, Special Publications
Abstract This contribution outlines the methodology of strontium isotope stratigraphy, and reviews the information that underpins the calibration curve of marine- 87 Sr/ 86 Sr against time for the Cretaceous.
John M. McArthur, Richard J. Howarth
openaire   +2 more sources

Galgedil

open access: yesDanish Journal of Archaeology, 2014
Galgedil is a Viking Age cemetery located in the northern part of the Danish island of Funen. Excavations at the site revealed 54 graves containing 59 inhumations and 2 cremation burials. Previous study of the remains to date has included light isotopes
T. Douglas Price   +4 more
doaj   +1 more source

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