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Radioactive Sources Applications and Alternative Technologies (2021) / Chapter Skim
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Appendix F: Sterilization Using Radiation with Different Modalities
Pages 181-182

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From page 181...
... Gamma rays and x-rays both involve a two-step process of photons interacting with the material, primarily through the Compton effect, and then the created secondary electrons deposit the dose and perform the damage to the biological structure of the bioburden. In the case of e-beam, the initial interaction of photons with the material is omitted, and instead, electrons interact directly with the material.
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From page 182...
... NOTES: The electron beam curve includes a 30-keV width, which is readily achievable by accelerator sources. The spectrum from that was then attenuated by 2 mm of tantalum to represent self-absorption in the bremsstrahlung target.
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Key Terms

  • gamma rays
  • radiation modalities
  • electron beam
  • sterilization radiation
  • beam power

  • temperature increase
  • accelerator sources
  • delivers approximately
  • national accelerator
  • rate variation

  • electrons deposit
  • biological structure
  • elevated temperature
  • secondary electrons
  • tolerate irradiation

  • irradiation time
  • fermi national
  • short period
  • typically delivers
  • gamma facility

  • temperature environment
  • generate electrons
  • active factor
  • six times
  • compton effect

  • created secondary
  • readily achievable
  • accelerator laboratory
  • dose rates
  • beam curve


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