Sources that are found to be leaking must be withdrawn from service. Laboratory Surveys Laboratories in which radioactive materials are used or stored are monitored and inspected monthly, quarterly, semi-annually, or at annual intervals by Health Physics personnel. The frequency of the surveys depends on the potential radiation hazards within the laboratory. Reports of the surveys and inspections are issued to the person responsible for the laboratory with comments on items needing improvement. Radioactive Waste Disposal Radioactive waste must be disposed separate from ordinary waste and cannot be discharged to the sewer.
Special receptacles are available for dry and liquid radiation wastes.
Radioactive wastes are collected by Health Physics personnel when contacted by the laboratory personnel. Reports of the survey are issued to the person responsible for the equipment. Microwave Oven Surveys Health Physics personnel survey microwave ovens that have been altered for laboratory use. Electron Microscope Surveys Electron microscopes produce x-rays that may expose the operators if the microscope is not properly constructed and shielded. Electron microscopes are monitored each year and the survey results reported to the person responsible for the equipment.