title: X-ray phase imaging: Demonstration of extended conditions for homogeneous objects.
abstract: We discuss contrast formation in a propagating x-ray beam. We consider the validity conditions for linear relations based on the transport-of-intensity equation (TIE) and on contrast transfer functions (CTFs). From a single diffracted image, we recover the thickness of a homogeneous object which has substantial absorption and a phase-shift of --0.37 radian.
authors.forename: L
authors.initials: L
authors.lastname: Turner
authors.forename: B
authors.initials: B
authors.lastname: Dhal
authors.forename: J
authors.initials: J
authors.lastname: Hayes
authors.forename: A
authors.initials: A
authors.lastname: Mancuso
authors.forename: K
authors.initials: K
authors.lastname: Nugent
authors.forename: D
authors.initials: D
authors.lastname: Paterson
authors.forename: R
authors.initials: R
authors.lastname: Scholten
authors.forename: C
authors.initials: C
authors.lastname: Tran
authors.forename: A
authors.initials: A
authors.lastname: Peele