title: An interlaboratory measurement of screen-film speed and average gradient according to ISO 9236-1.
abstract: The speed and average gradient of a conventional screen-film system was measured at four European laboratories. This is the first interlaboratory comparison in which the measurement conditions described in ISO 9236-1 were applied. The four laboratories used calibrated measurement equipment. The values obtained by the four laboratories were within a range of 14% for the speed and within a range of 8% for the average gradient. These variations are consistent with the expected measurement uncertainty.
authors.affiliation: Physikalisch-Technische Bundesanstalt, Braunschweig, Germany. egbert.buhr@ptb.de
authors.forename: E
authors.initials: E
authors.lastname: Buhr
authors.forename: D
authors.initials: D
authors.lastname: Bergmann
authors.forename: D
authors.initials: D
authors.lastname: Hoeschen
authors.forename: M
authors.initials: M
authors.lastname: Ailliet
authors.forename: G
authors.initials: G
authors.lastname: Sirand-Rey
authors.forename: C
authors.initials: C
authors.lastname: Gazzola
authors.forename: S
authors.initials: S
authors.lastname: Uras
mesh_terms: D002138:Calibration; D005060:Europe; D007753:Laboratories / Q000592:standards; D011786:Quality Control; D015203:Reproducibility of Results; D014962:X-Ray Film / Q000592:standards*