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Re: Security Screening Technique



To get this thread back on track:
The danger, as such, the knowledge that it is radioactive.  I argue that it is the knowledge that the material is radioacitve is what causes the fear, which is the terror act.  Exposure is something we, on this list, have a knowledge of but the public, including the first responsers and those making decisions on evacuation, do not. 
 
While we need to educate the public, do not be surprised if the actions we anticipate to be taken do not occur.  A great number of us are technically orientated in our knowledge and experience.  Many of the public are not, do not trust us who are technically savy, but will believe those who they trust, like Cristy Brinkley. 
 
-- John
John Jacobus, MS
Certified Health Physicist
jenday1@msn.com
 
----- Original Message -----
Sent: Saturday, December 07, 2002 9:47 PM
Subject: Re: Security Screening Technique

In a message dated 12/6/02 12:08:35 PM Mountain Standard Time, liptonw@DTEENERGY.COM writes:

Many dangerous radioactive materials would not create a high level radiation field, for example, Pu-239.  Thus, even a low level radiation field could indicate a problem.


In and of itself, what is so dangerous about EXTERNAL exposure to Pu-239?  It's not very radioactive.  The danger (problem, whatever) is that enough would be sequestered to produce a criticality.

Other that the danger of criticality with fissile materials, what is dangerous about external exposure to radioactive materials that have a low specific activity?

Ruth Weiner, Ph. D.
ruthweiner@aol.com