100 METERS « , 2 fi . . " to ‘y a8 :5 é ~ oe *% ’ a nytt ‘ ‘ ‘ Ae os ““ . €‘ ee f.40 os fe a STF rm . ay MT ‘590. 4 4, an t “ t aid . . wae beg + . a} aoe 4 ¥ Ted Fe, ‘ wt ‘ 2: 88><> , _ x + Roars’ . 4 +" 100 ~ pee 3 ‘i omeneo8Sortepate 70 % om . 2 q. hy es . 30 . a fe wet ' yf . , . 50.- 70 ~ 30 *5 i re? 5°.ya1° i + .% 50 ek 5 - a“ . ' .oe { he f 42 3 t g 8 ! ¢ af ! ‘ + . “. Fig. B.3.1.d. The gamma background exposure rate (uR/hr) at 1 m above the ground, measured with a portable Nal scintillation counter, te . toon "s “7 a ere an eT fe ame? do ~ ce ‘ 4 ¢ oral ate + * ” a tg ¥ ; ‘ > : , e . , © t