Small Sample 14C Dating by Liquid Scintillation Spectrometry

Author:

Polach Henry,Kaihola Lauri,Robertson Steve,Haas Herbert

Abstract

Small sample 14C dating is tested using conventional as well as high-resolution low-level liquid scintillation (LS) spectrometers. Contrasted are the results obtained dating ∼25, 125 and 250mg of elemental carbon in standard size counting vials (3mL) and 0.3mL teflon and quartz vials. It is demonstrated that the improved performance of the 0.3mL counting vials enables just adequate resolution of 25mg and very good resolution of 100mg carbon samples both at Modern and Old age limits when the determination is made in a high-resolution low-level LS spectrometer.

Publisher

Cambridge University Press (CUP)

Subject

General Earth and Planetary Sciences,Archeology

Reference7 articles.

1. The development of practical systems for 14C measurement in small samples using miniature counters;Otlet;Internatl 14C conf, 12th, Proc: Radiocarbon,1986

2. Perspectives in radiocarbon dating by radiometry;Polach;Nuclear Instruments and Methods,1987b

3. Scintillation Counter Performance at the SMU Radiocarbon Laboratory

4. Evaluation and Status of Liquid Scintillation Counting for Radiocarbon Dating

5. Polach H , Calf G , Harkness D , Hogg A , Kaihola L and Robertson S , 1987, Performance of new technology liquid scintillation counters for 14C dating: Internatl Jour Applied Radiation Isotopes, in press.

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