Energy-dispersive measurement ofKαx-ray linewidths and relative intensities

Abstract

The natural linewidths $\ensuremath{\Gamma}$ and component intensity ratios $\frac{K{\ensuremath{\alpha}}_{2}}{K{\ensuremath{\alpha}}_{1}}$ are determined using Ge(Li) spectroscopy for four $K\ensuremath{\alpha}$ x-ray doubles in the range $70\ensuremath{\le}Z\ensuremath{\le}82$. The necessary spectrum-fitting techniques employ two different approaches to convolute the intrinsic Lorentzian profiles with the detector resolution function. The forbidden $K{\ensuremath{\alpha}}_{3}$ transition is seen in Ge(Li) spectra for the first time. All results agree closely with Scofield's relativistic Hartree-Fock-Slater calculations.