Development of a new facility for dating old ground waters and ice cores using 81Kr.
Krypton-81 is produced by nuclear reactions induced by cosmic rays in atmosphere while Krypton-85 is released from nuclear installations. With respective halflifes of 229 ky and 10.76 y, these isotopes are considered as ideal tracers for dating groundwater or ice core [1-6]. The measurement of 81Kr...
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ftoskarbordeaux:oai:oskar-bordeaux.fr:20.500.12278/121420 2023-05-15T16:39:04+02:00 Development of a new facility for dating old ground waters and ice cores using 81Kr. LAVIELLE, B. GILABERT, E. THOMAS, B. 2011 https://oskar-bordeaux.fr/handle/20.500.12278/121420 en eng https://oskar-bordeaux.fr/handle/20.500.12278/121420 Chimie/Chimie analytique Communication dans un congrès avec actes 2011 ftoskarbordeaux 2021-11-02T23:31:37Z Krypton-81 is produced by nuclear reactions induced by cosmic rays in atmosphere while Krypton-85 is released from nuclear installations. With respective halflifes of 229 ky and 10.76 y, these isotopes are considered as ideal tracers for dating groundwater or ice core [1-6]. The measurement of 81Kr from a groundwater sample was first demonstrated using several isotopic enrichment steps followed by RISTOF technique [1-3]. Due to the very low abundance of 81Kr in groundwater - 1200 atoms/l in modern water - the dating generally requires sample volumes of at least several hundred liters [5,7]. Since 2003, in a collaborative work with IRIM, CNAB is developing a set of four instruments in order to measure 81Kr in groundwater using reasonable volume of water (20 l). Each instrument is dedicated to perform important steps in the dating process: Other/Unknown Material ice core OSKAR Bordeaux (Open Science Knowledge ARchive) |
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Open Polar |
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OSKAR Bordeaux (Open Science Knowledge ARchive) |
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ftoskarbordeaux |
language |
English |
topic |
Chimie/Chimie analytique |
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Chimie/Chimie analytique LAVIELLE, B. GILABERT, E. THOMAS, B. Development of a new facility for dating old ground waters and ice cores using 81Kr. |
topic_facet |
Chimie/Chimie analytique |
description |
Krypton-81 is produced by nuclear reactions induced by cosmic rays in atmosphere while Krypton-85 is released from nuclear installations. With respective halflifes of 229 ky and 10.76 y, these isotopes are considered as ideal tracers for dating groundwater or ice core [1-6]. The measurement of 81Kr from a groundwater sample was first demonstrated using several isotopic enrichment steps followed by RISTOF technique [1-3]. Due to the very low abundance of 81Kr in groundwater - 1200 atoms/l in modern water - the dating generally requires sample volumes of at least several hundred liters [5,7]. Since 2003, in a collaborative work with IRIM, CNAB is developing a set of four instruments in order to measure 81Kr in groundwater using reasonable volume of water (20 l). Each instrument is dedicated to perform important steps in the dating process: |
format |
Other/Unknown Material |
author |
LAVIELLE, B. GILABERT, E. THOMAS, B. |
author_facet |
LAVIELLE, B. GILABERT, E. THOMAS, B. |
author_sort |
LAVIELLE, B. |
title |
Development of a new facility for dating old ground waters and ice cores using 81Kr. |
title_short |
Development of a new facility for dating old ground waters and ice cores using 81Kr. |
title_full |
Development of a new facility for dating old ground waters and ice cores using 81Kr. |
title_fullStr |
Development of a new facility for dating old ground waters and ice cores using 81Kr. |
title_full_unstemmed |
Development of a new facility for dating old ground waters and ice cores using 81Kr. |
title_sort |
development of a new facility for dating old ground waters and ice cores using 81kr. |
publishDate |
2011 |
url |
https://oskar-bordeaux.fr/handle/20.500.12278/121420 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
https://oskar-bordeaux.fr/handle/20.500.12278/121420 |
_version_ |
1766029406438948864 |