¢ . met 8 ppld4 Celt Lalo (2,3) .61* 3.5* 36% .16 .O4 1.54 1.46 54 2.26 2.97 13 days .33* weak .06* .03* \ 35 2.6 years >100 17 months + 30° 40 hours 285 days 200 180 20 2.6 mine. 2? .03* 8.1 days 30 secs. 1.0 years 50 3900 days (for man) years \ 3900 hours days » 500 days 35 days 28 64 58 65 51 days e7 years .66 (2,3) Half life Physical Biological .36* .66 none 0.51* .76 none none weak 1.22* .t2 Radiation energy, Mev Gamma Beta .22 aA pml 47 Nar Me WN A eA1l4370™ 21 21.8 21.8 —— = month year years ' ( .51* 1T 1 .02* 1.36* .31* 137 2.1 week Per cent abundance at: One Ten One One (1) (4,5) bone pone bone muscle thyroid kidneys bone 1 0.04 0.002 1 0.0015 0.00003 0.1 0.004 0.2 bone 0.00007 pe/ml MPC 0 .0000008 (4) pone bone Critical organ Per cent abundance of fission products, radiation energy, half life, critical organ and maximum permissible concentration of fallout radioisotopes of biological interest t-OODAM yi31 95 nP106 gp9? yo Sr 90 $490 89 products Fission Table 1. ‘ @ \wN