title: [Dosimetric studies of 192Ir line sources and the mathematical presentation of the dose distribution].
abstract: The dose distribution of a "line-shaped" 192Ir-source was measured in 1,152 measuring points in a water phantom. Using regression analysis the analytical description of dose distribution was obtained. Accomplished comparison measurings with a solid phantom of miramide in 45 measuring points show that the dose distribution can be reproduced well by solid phantom measurings. Taking an ideal line source distribution as a basis, the r-dependence of correction factor, obtained by regression analysis, refers to a dispersion effect. The angle-dependent deviation of dose distribution from the ideal line source can be described by cos-terms with the single and double angle between line source axis and measuring point.
authors.forename: R
authors.initials: R
authors.lastname: Günther
authors.forename: W
authors.initials: W
authors.lastname: Walter
authors.forename: K H
authors.initials: KH
authors.lastname: Kloetzer
authors.forename: D
authors.initials: D
authors.lastname: Kob
authors.forename: J
authors.initials: J
authors.lastname: Schindler
mesh_terms: D001918:Brachytherapy; D005260:Female; D005833:Genital Neoplasms, Female / Q000532:radiotherapy*; D006801:Humans; D007496:Iridium Radioisotopes / Q000627:therapeutic use*; D008961:Models, Structural; D011879:Radiotherapy Dosage
chemical_list: D007496:Iridium Radioisotopes
vernacular_title: Dosimetrische Untersuchungen der "linienförmigen" 192Ir-Quelle und die mathematische Darstellung der Dosisverteilung.