Muonic Coulomb capture ratios and x-ray cascades in oxides

Muonic x-ray spectra from 57 oxides have been measured with Ge detectors at the muon channel of SIN. Coulomb capture ratios and muonic x-ray intensities were deduced. A novel method was applied for oxides of heavier elements. The results exhibit for the first time systematic relations between capture ratios, the x-ray intensities in the oxidized element and in the oxygen, and the radius of the atoms. Periodic behavior with Z was established in many cases.