[ RadSafe ] Long lived isotope/particle specific activity

Jerry Cohen jjc105 at yahoo.com
Thu May 26 14:06:02 CDT 2011

 Perhaps I am dense, or maybe just arithmatically handicapped, so please 
clarify: [1] what is the specific activity of a stable isotope, [2] how do you 
quantitatively express "risk magnitude", and [3] what is RDD ???
Jerry Cohen

From: Doug Huffman <doug.huffman at wildblue.net>
To: "radsafe at health.phys.iit.edu" <radsafe at health.phys.iit.edu>
Sent: Thu, May 26, 2011 5:55:01 AM
Subject: [ RadSafe ] Long lived isotope/particle specific activity

A bit of arithmetic calculating the mass specific activity for the whole
range of isotopes, stable and unstable, might lead to some understanding
of risk magnitudes - as from RDD.

Who fails to do arithmetic is doomed, not least to nonsense.

Doug Huffman
CNS Shift Test Engineer
CNS C.2340.X retired
Washington Island
You are currently subscribed to the RadSafe mailing list

Before posting a message to RadSafe be sure to have read and understood the 
RadSafe rules. These can be found at: 

For information on how to subscribe or unsubscribe and other settings visit: 

More information about the RadSafe mailing list