Chapter 14 Safety and Health at Fuel Fabrication Facilities A. B. Description of fuel element fabrication facilities 1. Research and development 2. Manufacturing operations Hazards in fuel fabrication are greater from nonradioactive substances used than from radioactivity 1. C. Except when working with recycled uranium Potential radiation hazards 1, 2. 3. Ixvernal exposure to ionizing radiation a, Uranium b. Thoriun ce. Plutonium Ingestion and/or inhalation of radioactive materials a. Uranium b. Plutonium Criticality (fissioning) will occur under certain conditions with uranium 235, uranium 233 and plutonium 239 a. D. Conditions for criticality (1) Sufficient mass (2) Sufficient enrichment (3) Proper geometry (4) Proper environment Radiation Control Procedures 1. Administrative controls ‘pom ARCHIVES

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