Subject: Advantages/disadvantages of 90% tungsten vs. lead as a radiation shield

I am doing research on the advantages of using heavy tungsten as a 
shield for gamma rays.  I would like to know if it is better to use 
tungsten or lead.  Expensiveness, strength, weight, and the ability 
to fabricate this shield out of lead or tungsten are all important 
qualities to affect my decision.  This shield will be used in a gamma 
detector for a mammography unit.  Please let me know your thoughts 
and ideas.

Thank you.

Erin Fay
Intern 
Dilon Technologies, Inc.
12050 Jefferson Ave. Suite 250
Newport News, VA  23606

efayx001@odu.edu

Re: Advantages/disadvantages of 90% tungsten vs. lead as a radiation shield