Page 302 - Radiation Safety
P. 302

PROTECTION AGAINST EXTERNAL HAZARDS

                          (SHIELDING)





                                                Calculation for Thickness of shielding




                                      I = I .e                       -x                                                 I o              I X

                                         x              o




                                    (I =  I .e                         - 0.693x/HVL                     )                                thickness, x

                                                            o
                                          x


                                      x = Thickness


                                       = Attenuation coefficient



                                      I x    = Intensity after passing


                                                 through thickness x


                                      I 0      = Initial intensity











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