Biomaterial Database

Implementation of Varian's EDW 5.2 on a Clinac 2300C/D for use with Helax TMS 3.1 dose planning system. 1997

M Karlsson

Radiation Physics Department, Umeå University, Sweden.

An EDW field is in principle a sum of fields with different sizes. The Helax TMS 3.1 dose planning system uses pre-existing open beam data and information specific to the geometry of the accelerator treatment head including flattening filter and collimators to generate open fields. These open fields are then summed using the Segmented Treatment Tables (STT) to generate the Enhanced Dynamic Wedge fields. Verification of predicted fields and output factors against measured data are discussed for different wedge angles, asymmetric fields and shaped fields.

UI	MeSH Term	Description	Entries
D011880	Radiotherapy Planning, Computer-Assisted	Computer-assisted mathematical calculations of beam angles, intensities of radiation, and duration of irradiation in radiotherapy.	Computer-Assisted Radiotherapy Planning,Dosimetry Calculations, Computer-Assisted,Planning, Computer-Assisted Radiotherapy,Calculation, Computer-Assisted Dosimetry,Calculations, Computer-Assisted Dosimetry,Computer Assisted Radiotherapy Planning,Computer-Assisted Dosimetry Calculation,Computer-Assisted Dosimetry Calculations,Dosimetry Calculation, Computer-Assisted,Dosimetry Calculations, Computer Assisted,Planning, Computer Assisted Radiotherapy,Radiotherapy Planning, Computer Assisted
D000465	Algorithms	A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.	Algorithm