Use of a novel two-dimensional ionization chamber array for pencil beam scanning proton therapy beam quality assurance

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Use of a novel two‐dimensional ionization chamber array for pencil beam scanning proton therapy beam quality assurance

The need to accurately and efficiently verify both output and dose profiles creates significant challenges in quality assurance of pencil beam scanning (PBS) proton delivery. A system for PBS QA has been developed that combines a new two-dimensional ionization chamber array in a waterproof housing that is scanned in a water phantom. The MatriXX PT has the same detector array arrangement as the ...

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Proton, as well as other ion, beams applied by electro-magnetic deflection in pencil-beam scanning (PBS) are minimally perturbed and thus can be quantified a priori by their fundamental interactions in a medium. This a priori quantification permits an optimal reduction of characterizing measurements on a particular PBS delivery system. The combination of a priori quantification and measurements...

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A comparison of two pencil beam scanning treatment planning systems for proton therapy

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ژورنال

عنوان ژورنال: Journal of Applied Clinical Medical Physics

سال: 2015

ISSN: 1526-9914

DOI: 10.1120/jacmp.v16i3.5323