Periods Detected During Analysis of Radioactivity Measurements Data
作者： A. G. Parkhomov
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摘要: Analysis results of data long-term radioactivity measurements 3H, 56Mn, 32Si, 36Cl, 60Co, 137Cs, 90Sr-90Y, 226Ra, 238Pu and 239Pu sources are presented. For beta-radioactive sources, their activity in addition to the exponential drop is characterized by rhythmic variations with a period 1 year magnitude 0.1-0.35% from average value. These oscillations attain maximum values between January March, corresponding minimum occurring July September. Spectral analysis 7-year long count rates 90Sr-90Y as well 15-year beta-gamma radiation 226Ra revealed presence about month 0.01%. Magnitude diurnal did not exceed 0.003%. for alpha radioactive reveal any statistically reliable periodic patterns. Possible factors underlying these beta-radioactivity discussed.
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