Unique phase recovery for nonperiodic objects.
It is well known that the loss of phase information at detection means that a diffraction pattern may be consistent with a multitude of physically different structures. This Letter shows that it is possible to perform unique structural determination in the absence of a priori information using x-ray fields with phase curvature. We argue that significant phase curvature is already available using modern x-ray optics and we demonstrate an algorithm that allows the phase to be recovered uniquely and reliably.
Nugent
K A
KA
School of Physics, The University of Melbourne, Victoria, 3010, Australia.
Peele
A G
AG
Chapman
H N
HN
Mancuso
A P
AP
D000465:Algorithms; D014961:X-Ray Diffraction / Q000379:methods*