title: Novel monochromatic optical density meter.
abstract: A novel monochromatic optical density meter is described for use with radiographic films. The principles of the instrument are outlined together with a brief description of the construction of a prototype model. The calibration of the meter shows high accuracy (r = 0.9999) in the optical density range 0-1.5 OD when compared to standard neutral density filters.
authors.affiliation: Department of Physics, Newcastle Polytechnic, Newcastle-upon-Tyne, UK.
authors.forename: J
authors.initials: J
authors.lastname: Dumville
authors.forename: D J
authors.initials: DJ
authors.lastname: Clark
authors.forename: P O
authors.initials: PO
authors.lastname: Byrne
mesh_terms: D055095:Optics and Photonics; D014962:X-Ray Film