TY - GEN AU - Huang,P H AU - Chu,J AU - Bjärngard,B E TI - The effect of collimator backscatter radiation on photon output of linear accelerators SN - 0094-2405 PY - 1987///0709 KW - Particle Accelerators KW - Scattering, Radiation N1 - Publication Type: Journal Article UR - https://doi.org/10.1118/1.596137 ER -