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Soviet Physics Journal

, Volume 8, Issue 5, pp 106–108 | Cite as

Rational table of values of the radioactive decay function

  • V. Ya. Gavrik
Article
  • 14 Downloads

Abstract

The change in activities with time can be simply determined over an unlimited range if instead of the half-life T0.5 one considers the time (period) corresponding to a decrease in the initial activity by one order, i.e., T0.1 = T0.5/lg 2 = 3.322. In this case the integer parts of the relative decay time t/T0.1 indicate the degree of tenfold reduction of the residual activity fractions found from a table (or nomogram) for their fractional parts.

In view of the ease with which the data can be extrapolated, the he table of fractional parts of t/T0.1, supplemented by a simple mechanical rule, is suitable for widespread use in physics manuals and textbooks in place of existing tables with a limited range of relative decay times and residual activity fractions.

Keywords

Decay Time Limited Range Residual Activity Initial Activity Activity Fraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    G. Ebert, Concise Physics Handbook [in Russian], Fizmatgiz, Moscow, 481, 1963.Google Scholar
  2. 2.
    V. Ya. Gavrik, Trudy Instituta fiziki LatvSSR, Riga, 10, 141, 1957.Google Scholar
  3. 3.
    V. Ya. Gavrik, Zavodskaya laboratoriya, 30, 2, 206, 1964.Google Scholar

Copyright information

© The Faraday Press, Inc. 1968

Authors and Affiliations

  • V. Ya. Gavrik
    • 1
  1. 1.Mozhaiskii Leningrad Red Banner Military Engineering AcademyUSSR

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