Approximated multileaf collimator field segmentation Kiesel, Antje , 1983- (VerfasserIn) Engel, Konrad , 1956- (AkademischeR BetreuerIn) Hamacher, Horst W. , 1951- (AkademischeR BetreuerIn) Fiorini, Samuel (AkademischeR BetreuerIn) Universität Rostock (Grad-verleihende Institution) Universität Rostock Mathematisch-Naturwissenschaftliche Fakultät (Grad-verleihende Institution) Text theses Text Hochschulschrift 2010 2010 eng electronic resourceremoteComputermedienOnline-Ressource1 Online-Ressource In intensity-modulated radiation therapy the aim is to realize given intensity distributions as a superposition of differently shaped fields. Multileaf collimators are used for field shaping. This segmentation task leads to discrete optimization problems, that are considered in this dissertation. A variety of algorithms for exact and approximated segmentation, for different objective functions and various technical as well as dosimetric constraints are developed.<eng> vorgelegt von Antje Kiesel Dissertation Universität Rostock 2011 510 http://purl.uni-rostock.de/rosdok/id00000813 Approximated multileaf collimator field segmentation--(DE-627)647362724 urn:nbn:de:gbv:28-diss2011-0036-1 doi: 10.18453/rosdok_id00000813 oclc: 838207428 ppn: (DE-627)653803583