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This means the data represent either the gammas or the betas (usually//
gammas) from 214-Pb and 214-Bi, which, as I mentioned, are typically
what one examines when trying to detect radon.
Radon does indeed have a half-life of 3.8 days. If it's present at a
steady rate in the room, and assuming the CRT display is always on, then
an equilibrium ratio of radon daughters exists on the screen.
Michael D. Edmiston, Ph.D.
Professor of Chemistry and Physics
Bluffton University
Bluffton, OH 45817
(419)-358-3270
edmiston@bluffton.edu
The half life of radon is 3.8 days, and this half life
is about 40 minutes.....
Is this the radium a, b ,c, c', d route?
Brian Whatcott Altus OK Eureka!