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Introduction to Health Physics: Fourth Edition - Ruang Baca FMIPA UB

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242<br />

TABLE 6-5. Absorbed Fractions for Uniform Distribution of Activity in Small Spheres a and Thick Ellipsoids a<br />

MASS 0.020 0.030 0.040 0.060 0.080 0.100 0.160 0.364 0.662 1.460 2.750<br />

(kg) (MeV) (MeV) (MeV) (MeV) (MeV) (MeV) (MeV) (MeV) (MeV) (MeV) (MeV)<br />

0.3 0.684 0.357 0.191 0.109 0.086 0.085 0.087 0.099 0.096 0.092 0.077<br />

0.4 0.712 0.388 0.212 0.121 0.096 0.093 0.097 0.108 0.108 0.099 0.083<br />

0.5 0.731 0.412 0.229 0.131 0.104 0.099 0.104 0.116 0.117 0.104 0.089<br />

0.6 0.745 0.431 0.244 0.140 0.111 0.105 0.111 0.122 0.124 0.109 0.093<br />

1.0 0.780 0.486 0.289 0.167 0.135 0.125 0.130 0.142 0.144 0.125 0.106<br />

2.0 0.818 0.559 0.360 0.212 0.173 0.160 0.162 0.174 0.173 0.153 0.127<br />

3.0 0.840 0.600 0.405 0.245 0.201 0.188 0.186 0.197 0.195 0.174 0.143<br />

4.0 0.856 0.629 0.438 0.271 0.222 0.209 0.205 0.216 0.213 0.190 0.156<br />

5.0 0.868 0.652 0.464 0.294 0.241 0.227 0.222 0.231 0.228 0.204 0.167<br />

6.0 0.876 0.671 0.485 0.312 0.258 0.241 0.236 0.245 0.240 0.216 0.177<br />

a The principal axes of the small spheres and thick ellipsoids are in the ratios of 1:1:1 and 1:0.667:1.333.<br />

Reprinted by permission of the Society of Nuclear Medicine from Brownell GL, Ellett WH, Reddy AR. MIRD Pamphlet No. 3: Absorbed Fractions for Pho<strong>to</strong>n Dosimetry. J Nuclear Med. February<br />

1968; 9(1 Suppl):29–39.<br />

ϕ

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