#research #radiation/sources #physics/quantum # Duane-Hunt Law Motivation: Further understanding of [[Kramers' Law]].  The Duane-Hunt law, named after physicists William Duane and Franklin L. Hunt, gives the maximum frequency / minimum wavelength of [[Bremsstrahlung X-Rays]] from [[X-Ray Tubes]]. $ \nu_{max} = \frac{eV}{h} $ $ \lambda_{min} = \frac{hc}{eV} \approx \frac{1239.8 \text{pm}}{V \,[kV]} $ where $h$ is [[Planck's Constant]], $e$ is the charge of the electron, and $c$ is the speed of light. This process of incoming electrons emitted photons is also known as the inverse [[Photoelectric Effect]].