Direct determination of7Be in sediments
| Autor: | Norman H. Cutshall, Ingvar L. Larsen |
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| Rok vydání: | 1981 |
| Předmět: | |
| Zdroj: | Earth and Planetary Science Letters. 54:379-384 |
| ISSN: | 0012-821X |
| DOI: | 10.1016/0012-821x(81)90053-4 |
| Popis: | Cosmic-ray produced7Be (53 days half-life) is directly measurable in freshly collected samples of river and coastal zone sediments using a lithium-drifted germanium detector. Calibration of the detector is discussed and an assessment of overall accuracy and sensitivity presented. The detection limit for a 250-g dry weight sediment sample contained in a Marinelli Beaker and counted for 200 minutes is approximately 0.4 pCi/g. Applications toward locating zones of rapid sedimentation as well as in understanding shallow-water sedimentation dynamics are suggested. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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