TY - GEN AU - McDermott,P N TI - The physical basis for empirical rules used to determine equivalent fields for phantom scatter SN - 0094-2405 PY - 1999///0205 KW - Phantoms, Imaging KW - Photons KW - Radiotherapy Dosage KW - Radiotherapy Planning, Computer-Assisted KW - Scattering, Radiation KW - X-Rays N1 - Publication Type: Journal Article UR - https://doi.org/10.1118/1.598420 ER -