NT & RP Journal
EXPANDED AND COMBINED UNCERTAINTY IN MEASUREMENTS BY GM COUNTERS
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Vol. XXII, No. 2, Pp. 1-72
December 2007
UDC 621.039+614.876:504.06
ISSN 1451-3994

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Pages: 64 -70

Authors:
Koviljka STANKOVIĆ, Danijela ARANDJIĆ, Djordje LAZAREVIĆ, Predrag OSMOKROVIĆ

Abstract

This paper deals with possible ways of obtaining expanded and combined uncertainty in measurements for four types of GM counters with a same counter's tube, in cases when the contributors of these uncertainties are cosmic background radiation and induced overvoltage phenomena. Nowadays, as a consequence of electromagnetic radiation, the latter phenomenon is especially marked in urban environments. Based on experimental results obtained, it has been established that the uncertainties of an influenced random variable "number of pulses from background radiation" and "number of pulses induced by overvoltage" depend on the technological solution of the counter's reading system and contribute in different ways to the expanded and combined uncertainty in measurements of the applied types of GM counters.

Key words: uncertainty in measurements, GM counter, background radiation, overvoltage
phenomenon, dead time

FULL PAPER IN PDF FORMAT (469 KB)

Vinča Institute of Nuclear Sciences :: Designed by milas :: July 2007
Last updated on September, 2010