ABSTRACT
Radiation therapy requires that a high dose of radiation is delivered accurately to specific organs. As the field of radiation dosimetry progressed, in particular for medical purposes, better equipment for more accurate dose measurement was developed. Theoretical methods for dose calculations and for calculation of correction factors of the various parameters affecting to dosimetry were developed. In radiation dosimetry protocols, plastic is allowed as a phantom material for the determination of absorbed dose to water in electron beams. The electron fluence correction factor is needed in conversion of dose measured in plastic to dose in water. The American Association of Physicists in Medicine (AAPM) Radiation Therapy Committee, and the Radiological Physics Center in Houston, Texas recommended that the AAPM 1983 protocol should be used in its original form as presented in 1983.
