Nuc lide Depositioa Fraction Compartment 3.5x10°¢ 8.7x1074 1.4 0.12 0.012 0.1 0.05 0.20 0.0 0.85 0.25 0.35 0.058 0.0022 0.21 7.4x1074 1.0x1074 0.90 1.0 0.50 0.0051 u Fraction Excreted ia Urine £ GI Tract to Blood Transfer Ki al Compartment Removal Rate Constant xX 7.0n10— 60*.. 28 3.6x107° 1.0 0.0002 1.0 90 Pa Qe 90. 39 6.5x10° Branching Ratio 0.49 65* 56 Ba 137= z A Significane Progeny 29 Cu 2. 8x0" 6.3210 4 a7l Decay Constane Total Body Dosimetric and Physiologic Data Table 4