Commissioning of ADAC Pinnacle for IMRT utilizing solid compensators Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/9019s467t

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  • Use of solid compensators is a very effective means of implementing IMRT on any linear accelerator. The standard practice has been IMRT delivery using accelerators equipped with multi-leaf collimators (MLC’s). Truth is the addition of MLC’s to an accelerator is quite expensive. Previous studies have shown solid compensators to have better dose conformance, easier implementation, and more cost effective than MLC IMRT. On the other hand, the addition of these commercially available brass compensators changes the beam characteristics and needs to be taken into account. The treatment planning system must be modeled to represent the dose accordingly. Many previous data suggest a 5% dose agreement to be acceptable for treatment. With sufficient study of the beam characteristics of the compensated beam and proper modeling of the treatment planning system one should achieve greater dose agreement. This study will attempt to develop a more accurate method of implementing solid IMRT compensators for use with the ADAC pinnacle by extensive beam analysis and computer modeling.
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