Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is a preferable shielding

  1. Sep 6, 2011 #1
    What kind of materials are suggested to shield an alpha particle, beta particle, and neutron particle? Or is it energy depended? Will particles just get bounced off / deflected sometimes if a wrong material is used.
     
  2. jcsd
  3. Sep 6, 2011 #2
    Alpha particles are stopped by a thin layer of just about anything. Even dead skin cell layers stop most alpha particles. For beta particles, it would depend upon the application and radionuclide - sometimes you want high Z materials and sometimes you want low Z materials. The same goes for neutrons - do you care about activation of the shielding? You also have to consider shielding the capture gammas (2.2MeV for hydrogen).
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook