Rand- und Körperfragment einer Tasse. Konkaves Oberteilprofil, scharfe Knickwand und niedriger Unterteil. Schwarze Farbe. Außen: An Schulter umlaufenden Rillen. Am Körper bis zum Knick Stempeldekor mit senkrechten Winkeln und einem Punkt innen

Allen H. Andrews (2942451)

André Freiwald (2942463)

Bodo Hattendorf (1367841)

Caroline Welte (2942454)

Christiane Yeman (2942460)

Detlef Günther (1322820)

Hans-Arno Synal (1247184)

Jens Fohlmeister (2942448)

Jesse R. Farmer (2942445)

Laura F. Robinson (357084)

Lukas Wacker (1839529)

Marcus Christl (1247193)

Sebastian
F. M. Breitenbach (2942457)

GAMS - Asset Management System for the Humanities

Onlineportal der archäologischen SammlungenPermalink: http://gams.uni-graz.at/o:arch.4670http://gams.uni-graz.at/arch 1Gefäß, TasseObjekttyp Gefäß, TasseMaterial KeramikInventarnummer KFUG IA Inv. G 1665Gattung Minoisch, MittelminoischDatierung UnbekanntFundort Griechenland, KretaBeschreibung Rand- und Körperfragment einer Tasse. Konkaves Oberteilprofil, scharfe Knickwandund niedriger Unterteil. Schwarze Farbe. Außen: An Schulter umlaufenden Rillen. AmKörper bis zum Knick Stempeldekor mit senkrechten Winkeln und einem Punkt innen.Maße Höhe: 7,8 cmBreite: 7,2 cmTiefe: 2,3 cmStatus unpubliziertLiteratur Macgillivray 2007, 135-136Handle hdl.handle.net/11471/507.10.1284Lizenz Creative Commons BY-NC-SA 4.0Onlineportal der archäologischen SammlungenPermalink: http://gams.uni-graz.at/o:arch.4670http://gams.uni-graz.at/arch 2

Gefäß, Tasse

A new instrumental setup, combining laser ablation (LA) with accelerator mass spectrometry (AMS), has been investigated for the online radiocarbon (14C) analysis of carbonate records. Samples were placed in an in-house designed LA-cell and CO2 gas was produced by ablation using a 193 nm ArF excimer laser. The 14C/12C abundance ratio of the gas was then analyzed by gas ion source AMS. This configuration allows flexible and time resolved acquisition of 14C profiles in contrast to conventional measurements, where only the bulk composition of discrete samples can be obtained. Three different measurement modes, i.e. discrete layer analysis, survey scans and precision scans, were investigated and compared using a stalagmite sample and, subsequently, applied to terrestrial and marine carbonates. Depending on the measurement mode, a precision of typically 1-5 % combined with a spatial resolution of 100 µm can be obtained. Prominent 14C features, such as the atomic bomb 14C peak, can be resolved by scanning several cm of a sample within one hour. Stalagmite, deep-sea coral and mollusk shell samples yielded comparable signal intensities, which again were comparable to those of conventional gas measurements. The novel LA-AMS setup allowed rapid scans on a variety of sample materials with high spatial resolution

Welte, Caroline

Wacker, Lukas

Hattendorf, Bodo

Christl, Marcus

Fohlmeister, Jens

Breitenbach, Sebastian

Robinson, Laura

Andrews, Allen

Freiwald, Andre

Farmer, Jesse

Yeman, Christiane

Synal, Hans Arno

Gunther, Detlef

Explore Bristol Research

Laser Ablation – Accelerator Mass Spectrometry:a novel approach for rapid radiocarbon analyses of carbonate archives at high spatial resolution

A new
instrumental setup, combining laser ablation (LA) with accelerator
mass spectrometry (AMS), has been investigated for the online radiocarbon
(14C) analysis of carbonate records. Samples were placed
in an in-house designed LA-cell, and CO2 gas was produced
by ablation using a 193 nm ArF excimer laser. The 14C/12C abundance ratio of the gas was then analyzed by gas ion
source AMS. This configuration allows flexible and time-resolved acquisition
of 14C profiles in contrast to conventional measurements,
where only the bulk composition of discrete samples can be obtained.
Three different measurement modes, i.e. discrete layer analysis, survey
scans, and precision scans, were investigated and compared using a
stalagmite sample and, subsequently, applied to terrestrial and marine
carbonates. Depending on the measurement mode, a precision of typically
1–5% combined with a spatial resolution of 100 μm can
be obtained. Prominent 14C features, such as the atomic
bomb 14C peak, can be resolved by scanning several cm of
a sample within 1 h. Stalagmite, deep-sea coral, and mollusk shell
samples yielded comparable signal intensities, which again were comparable
to those of conventional gas measurements. The novel LA-AMS setup
allowed rapid scans on a variety of sample materials with high spatial
resolution

The Francis Crick Institute

Laser Ablation – Accelerator Mass Spectrometry:
An Approach for Rapid Radiocarbon Analyses of Carbonate Archives at
High Spatial Resolution

Caroline Welte

Lukas Wacker

Bodo Hattendorf

Marcus Christl

Jens Fohlmeister

Sebastian F. M. Breitenbach

Laura F. Robinson

Allen H. Andrews

André Freiwald

Jesse R. Farmer

Christiane Yeman

Hans-Arno Synal

Detlef Günther

Crossref

Analytical Chemistry

Laser Ablation – Accelerator Mass Spectrometry: An Approach for Rapid Radiocarbon Analyses of Carbonate Archives at High Spatial Resolution

English

https://research-information.bris.ac.uk/files/78837780/Revised_Manuscript_LAAMS.pdf

Gefäß, Tasse

Abstract

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GAMS - Asset Management System for the Humanities

Explore Bristol Research

The Francis Crick Institute

Crossref

Explore Bristol Research