640 600 560 520 480 440 400 N L °o "\ \ 350094,2 \ nm oO Oo Distance From GZ, Yards 360 160 \ 120 \ 80 \ 3 \ t 40 \ oz} | —=—Hj— 40 80 cas TS 4 120} — rol Lt 320 \ | | 280 240 ft 200 ft 160 ft 120 | 60 40 OU 40 80 120 1I60 Distance From GZ, Ya.ds Figure 175. Operation HARDTACK I - Quince. Alpha contamination in micrograms per square meter. 309