Stefan Röttger MedicalVisualization/Attenuation of X-Ray Radiation

Attenuation of X-Ray Radiation

← Attenuation Coefficient | ● | Example Coefficients →

Attenuation of the radiation intensity $I$ of monochromatic (mono-energetic) rays while travelling through a homogeneous material with thickness d and attenuation coefficient $\mu$ :

$I(d) = I_0 \cdot e^{−\mu \cdot d}$

with

$e^{−\mu \cdot d}$ being the attenuation factor

What is the thickness of a material that absorbs exactly half of the rays intensity?

$I/I_0 = e^{−\mu \cdot d} = 0.5$

$D_\frac12 = \frac{ln 2}{\mu}$

$ln 2 \approx 0.7$

← Attenuation Coefficient | ● | Example Coefficients →

Stefan Röttger

Attenuation of X-Ray Radiation

Search

Options: