Transmission Dose Estimation Algorithm for Irregularly Shaped Radiation Field
Measurement of transmission dose is useful for in vivo dosimetry. In this study, the algorithm for estimating the transmission dose for open radiation fields was modified for application to partially blocked radiation fields. The beam data was measured with a flat solid phantom with various blocked fields. A new correction algorithm for partially blocked radiation field was developed from the measured data. This algorithm was tested in some settings simulating clinical treatment with an irregular field shape. The correction algorithm for the beam block could accurately reflect the effect of the beam block, with an error within ± 1.0%, with both square fields and irregularly shaped fields. This algorithm can accurately estimate the transmission dose in most radiation treatment settings, including irregularly shaped field
H. G. Yun et al., "Transmission Dose Estimation Algorithm for Irregularly Shaped Radiation Field," Journal of the Korean Society for Therapeutic Radiology and Oncology, Korean Society for Radiation Oncology, Jan 2002.
Mining and Nuclear Engineering
Article - Journal
© 2002 Korean Society for Radiation Oncology, All rights reserved.
01 Jan 2002