Hostname: page-component-76fb5796d-wq484 Total loading time: 0 Render date: 2024-04-27T02:16:45.363Z Has data issue: false hasContentIssue false

New Possibilities for 14C Measurements by Liquid Scintillation Counting

Published online by Cambridge University Press:  18 July 2016

Ramon Aravena
Affiliation:
Department of Earth Sciences, University of Waterloo, Waterloo, Ontario, Canada N2L3G1
Robert R Drimmie
Affiliation:
Department of Earth Sciences, University of Waterloo, Waterloo, Ontario, Canada N2L3G1
Roger McNeely
Affiliation:
Geological Survey of Canada, Ottawa, Ontario, Canada K1AOE8
Sandy Fabris
Affiliation:
Department of Earth Sciences, University of Waterloo, Waterloo, Ontario, Canada N2L3G1
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.

Results of intercomparison tests are presented on samples analyzed using gas and liquid scintillation techniques to study the capability of the LKB Quantulus to count an organic solution used for direct absorption of CO2 and samples with low carbon content. Good agreement was obtained for small samples compared to standard sample size and for the direct absorption compared with the traditional techniques.

Type
I. Sample Preparation and Measurement Techniques
Copyright
Copyright © The American Journal of Science 

References

Donahue, DJ, Zabel, TH, Jull, AJT, Damon, PE and Purser, KH, 1983, Results of tests and measurements from the NSF regional accelerator facility for radiocarbon dating, in Stuiver, M and Kra, RS, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 719728.Google Scholar
Farwell, GW, Grootes, PM, Leach, DD, Schmidt, FH and Stuiver, M, 1983, Current 14C measurements with the University of Washington accelerator facility for radioisotope dating, in Stuiver, M and Kra, RS, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 711718.Google Scholar
Kojola, H, Polach, H, Nurmi, J, Heinonen, A, Oikari, T and Soini, E, 1985, Low level liquid scintillation spectrometer for β- counting, in Nordic conf on the application of scientific methods in archaeology, Proc: ISKOS, p 539542.Google Scholar
Noakes, JE and Valenta, RJ, 1989, Low background liquid scintillation counting using an active sample holder and pulse discrimination electronics: Radiocarbon, this issue.Google Scholar
Otlet, RL, Huxtable, G, Evans, GV, Humphreys, DC, Short, TD and Conchie, SJ, 1983, Development and operation of the Harwell counter facility for the measurement of 14C in very small samples, in Stuiver, M and Kra, RS, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 565575.Google Scholar
Polach, HA, 1987, Evaluation and status of liquid scintillation counting for radiocarbon dating: Radiocarbon, v 29, no. 1, p 111.CrossRefGoogle Scholar
Polach, HA, Soini, E, Kojola, H, Robertson, S and Kaihola, L, 1982, Radiocarbon dating of milligram-size samples using gas proportional counters: an evaluation of precision and of design parameters, in Ambrose, W and Duerden, P, eds, Archaeometry: An Australian perspective: Canberra, ANU Press, p 343350.Google Scholar
Qureshi, R M, Aravena, R, Fritz, P and Drimmie, R (ms), 1989, The CO2 absorption method as an alternative to benzene synthesis method for 14C dating of samples younger than 29,000 years: Ms subm to Applied Geochem.Google Scholar
Sayre, EV, Harbottle, G, Stoenner, RW, Otlet, RL and Evans, GB, 1981, The use of the small gas proportional counters for the carbon-14 measurements of very small samples, in Internatl symposium on methods of low-level counting and spectrometry: IAEA, Vienna.Google Scholar