TY - RPRT TI - A shaping device for irregular electron fields for the Therac-20 accelerator. AU - R Muller-Runkel AU - J Ovadia AU - F Borger AU - H Culbert AU - B Rohowsky DO - 10.1118/1.595741 UR - https://pubmed.ncbi.nlm.nih.gov/3974532/ ID - 3974532 ER -