Page 319 - Radiation Safety
P. 319

PROTECTION AGAINST EXTERNAL HAZARDS

                                                                               (DISTANCE)








                                      Example








                                      2. The dose rate from a gamma


                                      source at 2 meters is 400 µSv/hr. At



                                      what distance will it give a dose rate



                                      of 25 µSv/hr?
























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