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Radiation Protection Objectives and standards Benefits and risks

Radiation Protection Objectives and standards Benefits and risks Occupational (onsite) vs. Non-occupational (offsite) Number of exposed people ALARA principle. Radiation Protection National Council on Radiation Protection and Measurements (NCRP)

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Radiation Protection Objectives and standards Benefits and risks

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  1. Radiation Protection • Objectives and standards • Benefits and risks • Occupational (onsite) vs. Non-occupational (offsite) • Number of exposed people • ALARA principle Radiation Protection and Safety

  2. Radiation Protection • National Council on Radiation Protection and Measurements (NCRP) • International Commission on Radiological Protection (ICRP) Radiation Protection and Safety

  3. Radiation Protection • Equivalent Dose: HT,R = wRDT,R Radiation Protection and Safety

  4. Radiation Protection • Effective Dose: E = Σ wTHT • Risk estimates • Dose constraints Radiation Protection and Safety

  5. Radiation Protection • Intake limits • Transfer models Radiation Protection and Safety

  6. Radiation Protection • Organ and tissue activity over time • Short term and long term doses Radiation Protection and Safety

  7. Radiation Protection • Time, distance and shielding • Buildup factor (B) used for gamma rays: I = BIoe-μx Radiation Protection and Safety

  8. Radiation Protection • Calculating the shielding thickness (x) • Narrow beam of gamma rays (B = 1) Radiation Protection and Safety

  9. Radiation Protection • X ray machines • Lead lining • Controlled and uncontrolled areas • Dose/year Radiation Protection and Safety

  10. Radiation Protection • Experimental data • Application of Q in shielding design Radiation Protection and Safety

  11. Radiation Protection • Beta & Bremmstrahlung • Neutrons Radiation Protection and Safety

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