Table 9.

Selected values of the total β activity and of the exposure rate at H+12 h, ${\left(\beta /\dot{X}\left(12\right)\right)}_{\frac{R}{V},12}$, according to the degree of fractionation, R/V.

R/V	${\left(\beta /\dot{X}\left(12\right)\right)}_{\frac{R}{V},12}$ (Bq m−2 per mR h−1)
0.5	4.11 × 106
1	4.92 × 106
1.5	5.43 × 106
2	5.79 × 106
3	6.24 × 106