title: Design and imaging performance of achromatic diffractive-refractive x-ray and gamma-ray Fresnel lenses.
authors.affiliation: Centre d'Etude Spatiale des Rayonnements, 9, avenue du Colonel Roche, 31028, Toulouse, France. gerry.skinner@cesr.fr
authors.forename: Gerald K
authors.initials: GK
authors.lastname: Skinner