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Washington State University Natural Radiocarbon Measurements II

Published online by Cambridge University Press:  18 July 2016

J C Sheppard  and
R M Chatters
J C Sheppard
Affiliation:
Department of Chemical and Nuclear Engineering, College of Engineering, Washington State University, Pullman, Washington 99163
R M Chatters
Affiliation:
Department of Chemical and Nuclear Engineering, College of Engineering, Washington State University, Pullman, Washington 99163
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This list of radiocarbon age measurements is for the period 1972–1974. Most of the samples are of archaeologic interest. The pretreatments of samples used are basically those described by Ralph and Michael (1971). All samples were converted to methane using the method developed by Fairhall, Schell, and Takashima (1961) and counted in .5L counting tubes at 2 to 4atm of pressure. The WSU Radiocarbon Laboratory has been relocated to the basement of Dana Hall (three stories) and additional shielding has been added. The backgrounds of the counting tubes are .90 counts/min and have an atmospheric pressure dependence of –.035 counts/min/cm Hg.

Type
Research Article
Information
Radiocarbon , Volume 18 , Issue 1 , 1976 , pp. 140 - 149
Copyright
Copyright © The American Journal of Science 

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