title: [Possibilities and limits of practice-oriented daily control measurements of linear accelerators].
abstract: Daily control measurements of the dose taken at a linear accelerator are described in order to present a practice-oriented measurement and evaluation method rendering possible a long-term quality control. This method allows to establish sudden parameter variations as well as to determine in a simple and precise manner long-term drifting effects with an amplitude within the range of measurement variations and a period of many months. During the time of six months, not only a drifting effect with a long period and an amplitude within the range of pro mille, but also a variation coefficient smaller than 0,3% could be determined.
mesh_terms: D006801:Humans; D008953:Models, Anatomic; D010315:Particle Accelerators / Q000592:standards*; D011786:Quality Control; D011879:Radiotherapy Dosage / Q000592:standards; D013997:Time Factors
vernacular_title: Möglichkeiten und Grenzen praxisorientierter täglicher Kontrollmessungen an Linearbeschleunigern.