JMP  Vol.2 No.11 , November 2011
Deviations from Beta Radioactivity Exponential Drop
ABSTRACT
At long-term count rate measurements of beta sources 3H, 56Mn, 32Si, 36Cl, 60Co, 137Cs, 90Sr-90Y and decay products of 226Ra the rhythmic changes with amplitude 0.1% 0.3% from average magnitude and period 1 year, and up to 0.01 % with period about one month are detected. Magnitude of diurnal oscillations did not exceed 0.003%. Analysis of measurements data for alpha radioactive sources 238Pu and 239Pu did not reveal any statistically reliable periodic patterns. Sporadic drops in the count rate were detected while registering the activity of 54Mn, 60Co and 90Sr-90Y sources. Bursts in the count rate were registered when scanning the celestial sphere by a reflecting telescope with 60Co or 40K radioactive sources at the focus point. Possible factors underlying these deviations in beta-radioactivity are discussed.

Cite this paper
nullA. Parkhomov, "Deviations from Beta Radioactivity Exponential Drop," Journal of Modern Physics, Vol. 2 No. 11, 2011, pp. 1310-1317. doi: 10.4236/jmp.2011.211162.
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