title: A comparison of the ball, wire, edge, and bar/space pattern techniques for modulation transfer function measurements of linear x-ray detectors.
abstract: Actual assessment of the modulation transfer function (MTF) of a physical system requires objective experimental data to be obtained. This paper presents four practical methods for measuring the MTF of a linear x-ray detector. These methods are based on using the ball, wire, edge, and bar/space pattern as stimuli. The measurement procedure and experimental conditions are described in detail. The MTF results obtained with these different techniques are analyzed and compared.
authors.affiliation: Laboratoire CNDRI, Bat. 303, INSA, 69621 Villeurbanne Cedex, France.
authors.forename: V
authors.initials: V
authors.lastname: Kaftandjian
authors.forename: Y M
authors.initials: YM
authors.lastname: Zhu
authors.forename: G
authors.initials: G
authors.lastname: Roziere
authors.forename: G
authors.initials: G
authors.lastname: Peix
authors.forename: D
authors.initials: D
authors.lastname: Babot