Duane-Hunt law
= Duane-Hunt law
{c}
{title2=$\lambda_{\min}=hc/(eV)$}
For an <electron> accelerated through a <electric potential difference> $V$ and stopped at a massive target, the largest single <photon energy> is approximately $eV$. <Conservation of energy> and $E_\gamma=hc/\lambda$ give the short-<wavelength> cutoff $\lambda_{\min}=hc/(eV)$. Target recoil is neglected in this limiting relation.