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What are the advantages and disadvantages of gamma rays when compared with X-rays for radiographic inspection?


Frequently Asked Questions

Advantages of gamma rays compared with X-rays

  • No electrical or water supplies needed
  • Equipment smaller and lighter
  • More portable
  • Equipment simpler and more robust
  • More easily accessed
  • Less scatter
  • Equipment initially less costly
  • Greater penetrating power

Disadvantages of gamma rays compared with X-rays

  • Poorer quality radiographs
  • Exposure times can be longer
  • Sources need replacing
  • Radiation cannot be switched off
  • Poorer geometric unsharpness
  • Remote handling necessary

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