title: Materials for refractive x-ray optics.
abstract: An X-ray lens using refraction has been proposed by Tomie, and demonstrated for 14 keV X-rays by Snigirev et al. This type of lens is made from a series of very weak lens elements. I calculate the properties of such lenses constructed of various chemical elements and compounds over the range of 1 to 30 keV. In general, I find that X-ray optics made from low density, low Z materials have the widest useful apertures, but require more lens elements than denser and higher Z materials.
authors.affiliation: MOXTEK, Inc., 452 West 1260 North, Orem, UT 84057, USA.
authors.forename: M W
authors.initials: MW
authors.lastname: Lund