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Determination of small quantities of radon and thoron

Evans, Robley D. (1932) Determination of small quantities of radon and thoron. Physical Review, 39 (6). p. 1014. ISSN 0031-899X. doi:10.1103/PhysRev.39.1014.

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In the measurement, by the alpha ray method, of less than 2x10^(-12) curies of radon, the limit of precision is imposed by the small statistical variations in the background of residual ionization due to cosmic and local radiation. This in the excellent work of Paneth and Koeck(1) a mean deviation of 3 percent in the background would introduce an uncertainty of 50 percent in the measurement of 10^(-13) curies of radon.

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Additional Information:©1932 The American Physical Society. Received 23 February 1932.
Issue or Number:6
Record Number:CaltechAUTHORS:EVApr32
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5934
Deposited By: Tony Diaz
Deposited On:09 Nov 2006
Last Modified:08 Nov 2021 20:29

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