XPS studies of actinide materials

Application of X-ray photoemission spectroscopy (XPS) to the study of actinide materials are reviewed. Examples discussed here include the band structures of thorium and uranium metal, the multiplet structure associated with the 5f electron states in oxides of the transuranium elements, the test for temporal configuration fluctuations in NpO2, crystal field splitting of the U 6p3sub(/)2 level in a series of uranyl compounds, mixed oxidation states in Cf7O12, and a test for the participation of 5f electrons in bonding in a series of uranium compounds. (author)