title: Verification of electron field positioning.
abstract: The difficulties in verification of electron fields are due to the limited range of electrons within the human body. Modern linacs provide a special mode of operation (film mode), so that electron fields can be irradiated with a small photon dose. Thus, the images obtained can be used for comparison with the corresponding simulator images or DRRs to determine the electron field position and to detect positioning errors.
authors.affiliation: University of Leipzig, Department of Radiotherapy and Radiooncology, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Lemnitzer
authors.forename: U
authors.initials: U
authors.lastname: Wolf
authors.forename: G
authors.initials: G
authors.lastname: Hildebrandt
authors.forename: F
authors.initials: F
authors.lastname: Kamprad
mesh_terms: D001943:Breast Neoplasms / Q000532:radiotherapy; D004583:Electrons; D005260:Female; D006258:Head and Neck Neoplasms / Q000532:radiotherapy; D006801:Humans; D010315:Particle Accelerators; D011879:Radiotherapy Dosage; D020266:Radiotherapy, Conformal