di al EVENT AND DESCRIPTION OF EXPOSED GROUPS 1] lOO F- x S007 q Depth Dose tn Phantom Mon —*— initial Radiation : --X--- Residual Field | Ww 200F 5 |% = oO ; ‘i \ ; oO am) te oO om = Lu © SOF Qa, CO 105 1 ! 4 10 20 DEPTH ! t 30 IN (CM) Picture 15—Comparison of depth doxc curves tt aq masonite phantom man, uf fhe tintral atamic bowel panne radiation and of yvattona radiation frais aoplanar field of fisxtou products deposited an sull affer an erporiacntal nacicear defanealton, the atolls, and spectrometric and radiochemical data. ‘Phe actual luration of the radionclive fallouts was not known, and the values for lengthof exposure were subject to uneeyptainties In the times at which the fallouts began. A range of possible whole body ganna doses was cilentiated, and the values considered to be most probable are presented. Diiluse geometry 5002164 from the semi-infinite planar sonree was be- lieved to increase the biolowical eifect of the whole body dose expressed as in air dose, con: pared in the geometry of the usual N-ray exposure, Soft yanuna and beta radiation from fallout ou the ground and especially on the skin itself resulted inv superficial dase which wis hich enough to produce lesions. No quan: