Chapter #7
Protecting against External Radiation

 

• Introduction
• Methods for Reducing External Exposure
• Time
  • Decay
  • Example
• Distance
  • Point Sources
  • Gamma-ray Source
  • Line Sources
  • Extended Sources
  • Beta Radiation
  • Handling Small Sources
• Shielding
  • Introduction
  • Alpha and Beta Particles
  • Gamma-Ray Shielding
  • Gamma-ray Build-up
  • Neutron Shielding
  • Accelerator Shielding
• Access Control
  • Exclusion Areas
• Radiation Surveys
• Summary
• Assignment