Page 88 - 2020 ARE eGuide for Clinical at Nonhospital Sites
P. 88

Avoiding all unnecessary exposure to
                                                         radiation is critical. If you work with
        Radiation Safety                                 radiation, you have learned you must limit
                                                         your exposure as much as possible. All
                                                         employees must stay out of areas where
                                                         X-RAY IN USE signs are posted.
        Factors that decrease radiation from exposure
                                                         For radiation protection, you need to follow
        Decreased time near source                       the time, distance, and shielding principle to
        Increased distance from source                   minimize your exposure to radiation in much
        Increased shielding between source and victim    the same way as you would be protected
                                                         against overexposure to the sun.




















                                                         Shielding:
                                                         Barriers of lead, concrete, or water provide
                                                         protection from penetrating gamma rays and
                                                         x-rays. This is why certain radioactive materials
                                                         are stored under water or in concrete or lead-
                                                         lined rooms, and why dentists place a lead
                                                         blanket on patients receiving x-rays of their
                                                         teeth.
                                                         Therefore, inserting the proper shield between
                                                         you and a radiation source will greatly reduce
                                                         or eliminate the dose you receive.
   83   84   85   86   87   88   89   90   91   92   93