Author:
Farwell G W,Grootes P M,Leach D D,Schmidt F H,Stuiver Minze
Abstract
Our accelerator mass spectrometry (AMS) system shows a one-to-one relationship between sample 14C concentrations determined by AMS - and by β-counting. Measurements of unknown samples against a standard indicate that 14C concentration measurements to better than 2% can be made. For a 30-second data collection interval in a typical run of 100 intervals, the variability of the beam injected into the accelerator is ca 2%, that of the machine transmission is ca 4%, and counting statistics give 4.7% standard deviation for a sample of 80% of modern carbon.
Publisher
Cambridge University Press (CUP)
Subject
General Earth and Planetary Sciences,Archeology
Reference6 articles.
1. Grootes PM , Stuiver M , Farwell GW , and Schmidt FH , 1981, Sample preparation for accelerator mass spectrometry at the University of Washington, in : Argonne Natl Lab pub ANL/PHY-81-1, p 405–412.
2. Discussion Reporting of 14C Data
3. Technological Advances in the University of Washington Accelerator Mass Spectrometry System
4. Enrichment of 14C and Sample Preparation for Beta and Ion Counting
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