Computer controlled Dynamic wedge collimator for cancer treatment machine.

In this paper design of Dynamic wedge system we discuss the controlling of beam shaping device namely secondary collimator, which creates varying field intensity while the radiation beam is on. Due to the motion of collimator, different segments of the treatment field will be exposed to the primary beam for different intervals of time. The amount of dose that will be delivered to the patient as the collimator moves across the treatment field is controlled by pre-calculated computer selected lookup table. It leads toward the conformal treatment and there by sparing good tissue, this increases quality of treatment. This dynamic wedge profile will be achieved by the logical and mathematical algorithm which will be implemented using Xilinx and Lab VIEW software. National semiconductors LabVIEW software is use to design GUI and obtain prerequisites for Xilinx to do mathematical calculation. [ABSTRACT FROM PUBLISHER]