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Figurę 31 Comparison of patii lengths and emission tracks of a- and ({--particie emissions used in antibody-targeted radiation therapy. The ({--particie emissbns occur in a spectrum of path lengths directly related to particie energy. The sparse energy track from these emissbns is deposited over many celi dlameters scme distance fforn the decay event. The a-particie emissions occur at a discrete energy and path length. resulting in a high linear energy transfer. The dense energy track from these emissions te deposited directly from the decay event over only a few celi dlameters. 50-80 urn in tissues.