Chapter 10 Safety and Health at Hot Laboratories Handling of highly radioactive materials Potential radiation hazards l. Extremely high external radiation fields 2. Danger of radioactive contamination Construction features of hot cells 1. Thick, high-density concrete shielding 2. Special lead-glass windows 3. ‘Remote handling equipment 4, Special access doors to hot cells 5. High-velocity ventilating systems 6. Interior surfaces easily cleaned 7. Decontamination facilities Permanently mounted alarm systems L. Airborne contamination 2. High radioactivity levels 3. Failure of ventilating system Restricted laboratory entry 1. Persons not connected with the work forbidden to enter unless escorted by laboratory representative e. Persons allowed to enter made familiar with safety rules and regulations Regulated cell entry 10 - 1 DOS ARCHIVES -

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