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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).
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