title: Quantitative phase radiography with polychromatic neutrons.
abstract: We develop and experimentally demonstrate a formalism that allows accurate phase imaging using neutron sources producing highly polychromatic beams. The results of measurements from a rectangular block of silicon compare favorably with theoretical simulations based upon the known composition and geometry of the block. The increased flux and reduced exposure times will permit a simple extension of the technique to tomographic phase imaging.
authors: School of Physics, University of Melbourne, Victoria 3010, Australia.
authors: P J
authors: PJ
authors: McMahon
authors: B E
authors: BE
authors: Allman
authors: D L
authors: DL
authors: Jacobson
authors: M
authors: M
authors: Arif
authors: S A
authors: SA
authors: Werner
authors: K A
authors: KA
authors: Nugent