Journal article

Quantitative phase radiography with polychromatic neutrons

PJ McMahon, BE Allman, DL Jacobson, M Arif, SA Werner, KA Nugent

PHYSICAL REVIEW LETTERS | AMER PHYSICAL SOC | Published : 2003

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.