[ RadSafe ] Don't go swimming in the Pac. ocean

Chris Alston achris1999 at gmail.com
Wed Feb 22 12:11:47 CST 2012


I second that emotion.  I have been using natural potassium-40 as a
reference point to put these issues in perspective for along time.  I
mean, the elemental spA of K-40 is nominally 850 pCi/gm.  It rarely
fails to impress, e.g., women, when one explains to them that the
orange juice they give to their kids is naturally radioactive enough
that it can be used as a reference source to energy-calibrate
instruments (gamma spec).


On Wed, Feb 22, 2012 at 12:10 PM, Brennan, Mike  (DOH)
<Mike.Brennan at doh.wa.gov> wrote:
> It would have been nice if they had compared the activity from Cs-137 to
> the activity from K-40 in the same samples.

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