Hostname: page-component-848d4c4894-hfldf Total loading time: 0 Render date: 2024-06-09T13:51:22.942Z Has data issue: false hasContentIssue false
  • English
  • Français

Some Possibilities for the Development of 14C Measurements by Liquid Scintillation Counting

Published online by Cambridge University Press:  18 July 2016

R Rajamäe  and
J M Punning
R Rajamäe
Affiliation:
Institute of Geology, Academy of Sciences, Estonian SSR
J M Punning
Affiliation:
Institute of Geology, Academy of Sciences, Estonian SSR
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The possibilities of widening the ranges of usage of scintillation counters are studied. As a result of the introduction of the active guard, the background in 14C channel reduces 30 to 75 percent and the stability of background increases. The application of quartz vials and a plastic scintillator as an active guard establishes 14C activity in small amounts of scintillation cocktail (up to 0.1g C) and dates samples with older ages (up to 57,000 years). The parameters of devices are given in case of different amounts of scintillation cocktail.

Type
Techniques
Information
Radiocarbon , Volume 22 , Issue 2 , 1980 , pp. 435 - 441
Copyright
Copyright © The American Journal of Science 

References

Alessio, M, Allegri, L, Bella, F, and Improta, S, 1976, Study of the bcakground characteristics by means of high efficiency liquid scintillation counter: Nuclear Instruments and Methods, v 137, p 537–543.CrossRefGoogle Scholar
Dyck, W, 1967, The Geological Survey of Canada Radiocarbon Dating Laboratory: Canada Geol Survey, Dept Energy, Mines and Resources: Paper 66-45, p 45.CrossRefGoogle Scholar
Punning, J M and Rajamäe, R, 1977, Some possibilities for decreasing the background of liquid scintillation beta-ray counters: low-radioactivity measurements and applications: Interntal conf in the High Tatras, Bratislava, 6-10 Oct 1975, Proc, CSSR, p 169–171.Google Scholar
Rajamäe, R, 1979, The basis for the choice of photomultipliers for radiocarbon measuring devices: All-Union conf on the problem, Astrophysical phenomena and radiocarbon, 6th, Proc: Tbilisi, 13-15 Oct 1976, p 333–341.Google Scholar