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2. Pencil Beam Scanning
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Separation of the target volume:
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In beam direction: monoenergetic layers
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In lateral direction: in raster points
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2D guidance of the monoenergetic, small proton
beam using a magnetic system
Target volume
E
min
E
max
Scanning
magnets
Universal Nozzle
Menkel, MTRA-Workshop Dresden 02-2015, Protonentherapie
Courtesy: D. Kunath
Proton therapy techniques