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HDR dwell time (point source)

Ḋ = 4.558e+4 cGy/h

D˙(r)=SKΛ(r0r)2g(r)F,t=D/D˙\dot D(r)=S_K\Lambda\left(\frac{r_0}{r}\right)^2 g(r)F,\quad t=D/\dot D

t = D / [S_K Λ (r₀/r)² g(r) F]. S_K in U, Λ in cGy h⁻¹ U⁻¹.

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