Development of a new facility for dating old ground waters and ice cores using 81Kr.
| hal.structure.identifier | RAEN | |
| dc.contributor.author | LAVIELLE, B. | |
| hal.structure.identifier | RAEN | |
| dc.contributor.author | GILABERT, E. | |
| hal.structure.identifier | RAEN | |
| dc.contributor.author | THOMAS, B. | |
| dc.date.conference | 2011 | |
| dc.description.abstractEn | 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: | |
| dc.language.iso | en | |
| dc.title.en | Development of a new facility for dating old ground waters and ice cores using 81Kr. | |
| dc.type | Communication dans un congrès | |
| dc.subject.hal | Chimie/Chimie analytique | |
| bordeaux.country | FR | |
| bordeaux.conference.city | Paris | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00663814 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | non | |
| hal.conference.end | 2011-08-13 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00663814v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=LAVIELLE,%20B.&GILABERT,%20E.&THOMAS,%20B.&rft.genre=unknown |
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