title: [Development of a measuring set-up for determination of light distribution of scattered light applicators for interstitial laser treatment].
abstract: In the medical setting, scattering dome applicators are used in various therapeutic and diagnostic procedures, e.g. laser-induced interstitial thermotherapy. The present study reports on the development of an automatic measuring system for determining the light distribution along the active end of scattering dome applicators. Using a stepper motor, the applicator is gradually moved into an integrating sphere, in which the light intensity is measured with a photodetector. It was shown the light distribution is determined mainly by the conditions under which the laser beam is coupled to the transmission fiber. The results made it possible to optimize the production of applicators, and showed that the set-up was suitable for quality control use.
authors.affiliation: Institut für Medizinische/Technische Physik und Lasermedizin des Universitätsklinikums, Benjamin Franklin, Freie Universität Berlin.
authors.forename: I
authors.initials: I
authors.lastname: Mesecke-von Rheinbaben
authors.forename: A
authors.initials: A
authors.lastname: Roggan
authors.forename: I
authors.initials: I
authors.lastname: Mollenhauer
authors.forename: G
authors.initials: G
authors.lastname: Müller
authors.forename: U
authors.initials: U
authors.lastname: Boenick
mesh_terms: D004867:Equipment Design; D006801:Humans; D006979:Hyperthermia, Induced / Q000295:instrumentation*; D053685:Laser Therapy; D008027:Light; D008838:Microcomputers; D011786:Quality Control; D011874:Radiometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted
vernacular_title: Entwicklung eines Messplatzes zur Bestimmung des Abstrahlverhaltens von Streulichtapplikatoren für interstitielle Laseranwendungen.