he also said that it wasn't much more than that emitted by bananas, or Brrazil nuts,
Both bananas and Brazil nuts are high in potassium. 40K is radioactive decaying mostly by emission of a beta particle. Fortunately for us it has a very long half-life of 1.2×109 years. Still each of us experiences about 4500 events/s from the potassium in the body.
Last edited by Gerald C Koch; 10-12-2012 at 10:07 AM. Click to view previous post history.
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