title: [Dosimetry of ruthenium applicators with an eye phantom and small volume thermoluminescence detectors].
abstract: Even though 106Ru/106Rh applicators have been in clinical use over more than two decades for the radiotherapy of malignant uveal melanomas, the dosimetry of emitted beta radiation is still a physical problem. The dose rate at the applicator surface and the depth dose in tissue equivalent material can be determined only within +/- 30% error. Using new cubic-shaped thermoluminescence detectors (TLD) with small volume the dose distribution is examined in water equivalent material (RW-1). The spatial resolution is 14 times better compared to the previous technique. From dose measurements in an eye phantom the homogeneity of nuclide deposition and the depth dose distribution of a 106Ru/106Rh applicator are determined.
authors.forename: K
authors.initials: K
authors.lastname: Muskalla
authors.forename: B
authors.initials: B
authors.lastname: Pothmann
authors.forename: W
authors.initials: W
authors.lastname: Alberti
authors.forename: N
authors.initials: N
authors.lastname: Bornfeld
authors.forename: M H
authors.initials: MH
authors.lastname: Foerster
authors.forename: D
authors.initials: D
authors.lastname: Harder
authors.forename: K P
authors.initials: KP
authors.lastname: Hermann
authors.forename: P
authors.initials: P
authors.lastname: Tabor
authors.forename: H
authors.initials: H
authors.lastname: Sack
authors.forename: A
authors.initials: A
authors.lastname: Wessing
mesh_terms: D001918:Brachytherapy / Q000295:instrumentation*; D005134:Eye Neoplasms / Q000532:radiotherapy*; D006801:Humans; D008953:Models, Anatomic; D011879:Radiotherapy Dosage; D012429:Ruthenium Radioisotopes / Q000627:therapeutic use*; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation*
chemical_list: D012429:Ruthenium Radioisotopes
vernacular_title: Dosimetrie von Rutheniumapplikatoren mit einem Augenphatom und kleinvolumigen Thermolumineszenzdetektoren (TLD).