Measurement of K-shell fluorescence cross-sections and yields of 14 elements in the atomic number range 25 <= Z <= 47 using photoionization

K-shell X-ray fluorescence cross-sections for the elements Mn, Fe, Ni, Cu, Zn, Ge, As, Br, Rb, Sr, Zr, Nb, Pd and Ag have been measured at the excitat ion energy of the 59.54 keV gamma -rays from an Am-241 radioactive source o f strength 100 mCi. In addition, measurement of K X-ray fluorescence yields for these elements at the same excitation energy have also been carried ou t. The experimental results are compared with the literature experimental v alues, theoretical predictions, and semiempirical fits. (C) 2001 Elsevier S cience Ltd. All rights reserved.