title: Generators, x-ray tubes, and exposure geometry in mammography.
abstract: The author reviews different types of generators used in mammography, x-ray tubes, and physical principles affecting exposure geometry. Target and filter combinations, focal spots, and unsharpness are discussed in detail.
authors.affiliation: Department of Diagnostic Imaging, Temple University Hospital, Philadelphia, PA 19140.
authors.forename: T
authors.initials: T
authors.lastname: Villafana
mesh_terms: D011211:Electric Power Supplies; D004867:Equipment Design; D005374:Filtration / Q000295:instrumentation; D006801:Humans; D008327:Mammography / Q000295:instrumentation / Q000379:methods; D011785:Quality Assurance, Health Care; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods; D012542:Scattering, Radiation