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Summer School 2006: Radiation Safety in Health Physics & Neutron Scattering

Learn about ionizing radiation, dosimetry, occupational dose limits, and more in this detailed training outline. Understand the risks and safety measures associated with electromagnetic radiation, neutron experiments, and radiation detection. Helpful for researchers, students, and professionals in the field.

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Summer School 2006: Radiation Safety in Health Physics & Neutron Scattering

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  1. Radiation Safety – Health Physics Neutron Scattering Summer School 2006 David Brown, NCNR Health Physics

  2. Training Outline - Radiation, Ionization, & Radioactivity - Radiation Dose - Radiation Safety - Questions ??

  3. Electromagnetic Radiation: Gammas and X-Rays

  4. Background Radiation US Average ~ 360 mrem/yr Denver, CO ~ 700 mrem/yr Brazil (beaches) ~ 5,000 mrem/yr

  5. Man Made Ionizing Radiation The NCNR Layout Reactor (generates neutrons) Neutron Experiment Stations Neutron Beam Tubes

  6. Radiation Exposure

  7. Types of Exposure

  8. Radiation Dosimetry Occupational Dose Limit = 5,000 mrem/yr General Public Dose Limit = 100 mrem/yr Average Dose to US Public = 360 mrem/yr Average Dose to NIST Researcher ~ 50 mrem/yr

  9. Health Physics Labels/Signs ~100,000 mrem/hr (localized dose rate) >5 mrem/hr (whole body dose rate) >100 mrem/hr (whole body dose rate)

  10. Radiation Detection / Measurement

  11. Time, Distance, and Shielding

  12. Distance – Inverse Square Law

  13. Shielding

  14. CampfireAnalogy

  15. Contamination Control Always monitor yourself and items you have with you when leaving a controlled area.

  16. Ionizing Radiation - Overview Can not see it, feel it, or smell it - we must rely on training and equipment to protect ourselves Relatively simple to detect and measure - unlike chemical and biological hazards - we can quickly assess and take action Biological effects have been intensely studied for 50 years

  17. Questions….?

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