Chemical effect on<i>Kβ</i>:<i>Kα</i>x-ray intensity ratios

Abstract

Chemical effects on the K\ensuremath{\beta}:K\ensuremath{\alpha} x-ray intensity ratios for some Mn and Cr compounds are studied both theoretically and experimentally. The K x-ray spectra were measured by the use of a double crystal spectrometer with high energy resolution. The theoretical calculations were made with use of the discrete-variational X\ensuremath{\alpha} molecular-orbital method and the x-ray intensities were evaluated in the dipole approximation using molecular wave functions. The calculated results indicate that the K\ensuremath{\beta}:K\ensuremath{\alpha} ratios for compounds with tetrahedral symmetry are in general larger than those with octahedral symmetry. The theoretical relative K\ensuremath{\beta}:K\ensuremath{\alpha} intensity ratios are qualitatively in agreement with the experimental results.