About radiation

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• Bq(???)
  • ??? ??? ???? ?? ??? ??
  • 1?? 1?? ???? ??
  • 1Ci(??) = 3.7*10^10 Bq
• Sv(???)
  • ??? ?? ??? ??.
  • ?? ???? (uSv)
  • 1rem = 0.015Sv
• Gy(???)
  • ???? ?? ??? ???? ????? ?? (???? ?? ??)
  • 1Gy = 1J/kg = 100rad
• R(???)
  • ???? ??? ???? ??, ???/??
  • 1R = 2.58*10^-4 C/kg

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• 2D-RT
• 3D-CRT
  • 62.1%. 3?????????
• IMRT: Intensity modulated radiation therapy
  • 19.9%. ??????????
  • ?? ??? ????? ??? ???? Multi-leaf collimator (MLC)? ??
  • Static MLC IMRT
    • “Step and shoot” ??
  • Dynamic MLC IMRT
    • “Sliding window” ??
  • ?? ?? ?? IMRT (volumetric modulated arc therapy), VMAT
    • ?? ???? ??? ??? ??
  • Tomotherapy IMRT
• IGRT: Image guided radiation therapy
• SBRT: Stereotactic body radiotherapy
  • ??????????
  • 3~5?, ??? ???. SNUH “???”
• HPRT
• Brachytherapy
  • ???????

Particle therapy

Bragg peak