Medical X-ray and gamma-ray protection for energies up to 10 MeV: structural shielding design and evaluation handbook; recommendations
National Council on Radiation Protection and Measurements, 1970 - Medical - 117 pages
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Barrier Thickness Requirements
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25 for conversion absorbed dose Appendix attenuation barrier requirements based on concrete beam orientation brachytherapy Braestrup concrete density constant potential controlled areas Controlled Noncon conversion of thickness crete Data courtesy density of 2.35 Distance in Feet dose equivalent E. E. Smith energy exposure rate Feet from Source fluoroscopic gamma rays gamma-beam therapy ionizing radiation irradiation kVp therapy installations lead glass leakage radiation located millimeters to inches NCRP Report Occupied Area ozone patient percent larger thicknesses primary protective barrier Protection and Measurements Protective Barrier Thickness R/week radiation protection radiation room radiation scattered Radioactive radiographic Radiology Radionuclides Radium rays produced roentgens scattered radiation Secondary Protective Barrier shielding design shielding requirements source housing structural shielding T—occupancy factor Thickness based thickness in millimeters thicknesses of concrete tion treatment room tube housing U—use factor W—workload wall workload WVTb Wyckoff x rays X-Ray Protection X-Ray Tube X-Ray Tube Target