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Pretoria Radiocarbon Dates I

Published online by Cambridge University Press:  18 July 2016

J. C. Vogel  and
M. Marais
J. C. Vogel
Affiliation:
National Physical Research Laboratory, Pretoria, South Africa *
M. Marais
Affiliation:
National Physical Research Laboratory, Pretoria, South Africa *
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In 1969 radiocarbon dating facilities were established at the National Physical Research Laboratory of the C.S.I.R. in Pretoria (25° 43′ S Lat, 28° 21′ E Long; alt 1500 m). The counters are situated in an underground room built of selected concrete and covered by ca. 12 m earth. In this room, the nucleonic component of cosmic radiation is practically absent and the meson flux is reduced by a factor of 3.5 as compared to the surface at sea level in Groningen, Netherlands. A neutron monitor which registers 30 cpm on the surface, counts ca. 0.1 cpm in the underground room.

Information

Type
Research Article
Information
Radiocarbon , Volume 13 , Issue 2 , 1971 , pp. 378 - 394
Copyright
Copyright © The American Journal of Science 

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