The Potential of the London Underground for Liquid Scintillation Counting
Keywordsgamma ray spectra
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CitationBowman, S. (1986). The potential of the London Underground for liquid scintillation counting. Radiocarbon, 28(2A), 592-596.
PublisherAmerican Journal of Science
DescriptionFrom the 12th International Radiocarbon Conference held in Trondheim, June 24-28, 1985.
AbstractA portable gamma spectrometer has been used to survey three locations that are part of the London Underground Transport System (the "tube"). Up to an order of magnitude reduction in the cosmic ray flux was observed relative to the laboratory level. The likely reduction in background count rate achievable by underground siting of currently used Packard and LKB liquid scintillation counters is considered. It is noted that in the present, surface usage for radiocarbon dating, the background count rate of low-potassium glass vials in the LKB is not substanially higher than that of PTFE vials.