K[beta]/K[alpha] x-ray intensity ratios in 3d elements by photoionization and electron-capture decay

The Kβ Kα x-ray intensity ratios by photoionization and electron-capture by the use of the discrete-variational Xα (DV-Xα) molecular orbital method. The calculated results indicate that the Kβ Kα ratios depend on the excitation mode as well as the chemical effect. For the similar chemical environments the Kβ Kα ratio by photoionization is larger than that by electron-capture decay, due to the excess 3d electron in the latter case. However, the difference is small, sometimes negligible in comparison with the chemical effect.Possible reasons for large difference in earlier experiments are discussed and future experiments are suggested.