| o9 ao! oe os L {| fi! fo [ / | UPWELLING RADIUS {FT} Figure 1.7 Radiation intensity from a circular upwelling of radioactive water (computed for a standard GITR at its center). to 0° $*1600 FT $1200 FT 0.8 0.7 tNTEnSITY o6 va o6 Ns os$ 2400 FY RELATIVE RELATIVE INTENSITY oO? / os a2 a Jf te ‘ 6 joerL 4 2 © 8 Aporeachiang US 420— SISTANCE OF LEACING EOGE FROM 2 4 @ 0 12 4 6% 18 Receding DETECTOR (HUNDREDS OF FEET) Figure 1.8 Relative intensity from an enveloping base surge (90° cloud model, 1 Mev gamma). 38