A method for measuring K-shell fluorescence parameters in a 2π geometrical configuration

Adopting a 2π geometrical configuration, target criteria for measuring fluorescence X-rays have been established. These criteria satisfy the Bambynek et al. (Rev. Mod. Phys. 44 (4) (1972) 716) suggestion regarding the optimum thickness of the target, balancing the production and attenuation of the fluorescence X-rays. The K-shell fluorescence cross section or K X-ray production cross section, σK, the K-shell fluorescence yield, ωK, and the ratio between the widths of the radiative transition and the Auger transition, ΓRK/ΓAK, have been measured for some high-Z elements (62⩽Z⩽82). The results are compared with theoretical, fitted and experimental values corresponding to several geometries. Good agreement indicates that the present method is a suitable alternative for measuring K-shell fluorescence parameters.