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arXiv · 0911.1387

Measurement of the thorium-228 activity in solutions cavitated by ultrasonic sound

R. Ford·M. Gerbier-Violleau·E. Vazquez-Jauregui
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Abstract

We show that cavitation of a solution of thorium-228 in water does not induce its transformation at a faster rate than the natural radioactive decay. We measured the activity of a thorium-228 solution in water before, and after, it was subjected to a cavitation at 44 kHz and $250 $W for 90 minutes in order to observe any change in the thorium half-life. The results were compared to the original activity of the sample and we observed no change. Our results and conclusions conflict with those in a recent paper by F. Cardone et. al. [Phys. Lett. A 373 (2009) 1956-1958].

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R. Ford, M. Gerbier-Violleau, E. Vazquez-Jauregui. 2009-11-07. Measurement of the thorium-228 activity in solutions cavitated by ultrasonic sound. https://doi.org/10.1016/j.physleta.2009.11.061

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