[ RadSafe ] Banana Equivalent Dose - erroneous?

edmond0033 at comcast.net edmond0033 at comcast.net
Fri Mar 25 16:16:31 CDT 2011

I fail to understand the problems with K-40 in Banana's.  Potassium (and 
K-40) is present in most foods.  In fact here most foods contain it.  Coffee 
beans and  instant coffee contain it.  Just remember that we'd all be gone 
if our bodies contain it.  Until someone finds a way to eliminate it (K-40) 
from foods, we will be stuck with it for eons.

Ed Baratta

-----Original Message----- 
From: McNaughton, Michael
Sent: Friday, March 25, 2011 2:51 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Banana Equivalent Dose - erroneous?


To the best of my knowledge, FGR #11 is not applicable in this case. 
However, I don't know of any documentation.

Mike McNaughton
mcnaught at lanl.gov

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu 
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of shima
Sent: Friday, March 25, 2011 11:08 AM
To: radsafe at health.phys.iit.edu
Subject: Re: [ RadSafe ] Banana Equivalent Dose - erroneous?

The main question I am seeking to clarify is:

does this mean that applying the dose given in FGR #11 for K-40 is
incorrect in this case?

Is using the dose from exposure to K-40 given in FGR #11 valid in the
case of ingestion of a large mass (circa 500mg) of a natural mix of
potassium isotopes.

In particular any ref to any documentation explaining whether or not
this is correct use of the dose tables would be most helpful

best regards.

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