At later tines after fallout, better estimates of radistion doses received may be obtained from film bedge readings or dosimeters. If these fila badces 4 or docizasters are worn on persomme) and the evidence of their use supports the view that the reacings are a reasonably accurate ucccuit of the re‘iztian dose received then the values recorded en the file betcc or doziacter may be accepted with a correction factor ef 3/1 to account for the difference between the dose received by the film badge or dosinster (incluting backscatter) and that received at the tissue depth ef five centineters, Table Ic may be used in extinating the effective biological dose, . BES ( 2s + = . c, 2. “E Ertective Effective Yoosfacter Tose ~ Fila Badge Film Badge Miological or Dosinster (Colum B Factor Correction x C) Reading Frou tine of fallout until time of evacuation From tine of return to 15 days after initiel fallout Froa 15 days until one year after initial fallout | iwi vi 3/s | 2/3 ee xb) | : s/t , af ve wa 2/2 TOTAL: - | *The value of 9/16 hae been rounded off to 1/2. WeEOLENORE Emneve ae ae TO SS bag YT oa ea a4 OPT ERIEM parts