The empirical formulae for calculating mass stopping powers		Substances
$y = A_{1} e^{x / t_{1}} + y_{o}$
Ref. [5]	This work
A₁ = 1.0140 × 10⁸, t₁ = −0.04235 y_o = −2.17377 R² = 0.99982	A₁ = 6.4723 × 10⁸, t₁ = −0.0374 y_o = 0.10311 R² = 0.99999	Lung
A₁ = 1.3298 × 10⁸, t₁ = −0.04166 yₒ = −1.74685 R² = 0.99988	A₁ = 7.424 × 10⁸, ,t₁ = −0.03717 y_o = 0.33231 R² = 0.99999	Breast
A₁ = 1.05463 × 10⁸, t₁ = −0.0423 y_o = −1.998 R² = 0.99984	A₁ = 6.7234 × 10⁸, t₁ = −0.0374 y_o = 0.25388 R² = 1	Ovary