Quantitative phase radiography with polychromatic neutrons.
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.
McMahon
P J
PJ
School of Physics, University of Melbourne, Victoria 3010, Australia.
Allman
B E
BE
Jacobson
D L
DL
Arif
M
M
Werner
S A
SA
Nugent
K A
KA