![]() ![]() Since the projected effect of a low dose increases the incidence of a deleterious effect only minimally above the naturally occurring level, it is impossible to prove by observation either the validity or falsity of this hypothesis. This is called the linear no-threshold hypothesis. Due to the uncertainties with respect to radiological risk, a radiation protection risk model assumes that the health risk from radiation exposure is proportional to dose. ![]() Since it is not possible to measure carcinogenic effects at low doses, estimates of the incidences of radiation effects at low doses are based on linear extrapolation from relatively high doses. Appendix VIII: Radiation Measurement Units.Appendix VII: Facility Radiation Protection Checklist.Appendix VI: Radiation Emitting Devices Regulations for Diagnostic X-ray Equipment.Appendix V: Federal/Provincial/Territorial Radiation Safety Agencies.Appendix IV: Shielding Guides for Storage of Radiographic Film.Appendix III: NCRP #49 Methodology for Calculation of Shielding Requirements for Diagnostic X-ray Installations.Appendix II: Shielding Information Guides.Appendix I: Dose Limits for Occupational Ionizing Radiation Exposures.3.6.3 Annual Quality Control Tests Equipment.3.5.3 Semi-annual Quality Control Tests Equipment.3.5.2 Semi-Annual Quality Control Tests.3.5 Semi-Annual Quality Control Testing.3.4.3 Quarterly Quality Control Tests Equipment.3.3.3 Monthly Quality Control Tests Equipment.3.2.3 Weekly Quality Control Test Equipment.3.1.3 Daily Quality Control Test Equipment.3.0 Quality Control Testing Procedures and Equipment.1.3.3 Establishment of Administrative Procedures.1.3.2 Establishment of Quality Control Procedures.1.3.1 Policies and Guidelines Development.1.3 Implementation of Quality Assurance Program.1.2.2 Benefits of Quality Assurance Program.1.2.1 Costs of Quality Assurance Program.1.2 Costs-Benefits of the Quality Assurance Program.1.1 Goals of the Quality Assurance Program.3.2.4 Picture Archiving and Communications System.3.2.1 Computed Radiography Imaging Plates.2.5.5 Dose and Image Quality Information for Computed Tomography Equipment.2.5.4 Computed Tomography Equipment Requirements.2.5.3 Radioscopic Equipment Requirements.2.5.2 Radiographic Equipment Requirements.2.4 Retrofitting with Computed Radiography (CR) and Digital Radiography (DR) Systems.2.2.3 Analysis of Vendor Quotation and the Purchase Contract.2.1 Regulatory Requirements for Medical X-ray Equipment.2.0 Medical X-ray Equipment Requirements.1.3.3 Radioscopic X-Ray Equipment and Angiographic X-Ray Equipment.1.3.2 Radiographic X-Ray Equipment and Dedicated Chest Radiographic Equipment.1.2.3 Determination of Parameters Governing Structural Shielding Requirements.1.2.2 Considerations for Room Design and Layout. ![]() Section B: Facility and Equipment Requirements.3.4 Guidelines for Reduction of Dose to Sensitive Tissues.3.3.5 Requirements and Recommendations for Computed Tomography Procedures.3.3.4 Requirements and Recommendations for Angiography.3.3.3 Requirements and Recommendations for Radioscopic Procedures.3.3.2 Requirements and Recommendations for Radiographic Procedures. ![]()
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