What is it about?
By irradiating a plastic step wedge with a mono-energetic proton beam and measuring the distances between light bands on a scintillator placed distally to the step wedge it is possible to measure the kinetic energy of the protons with high precision.
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Why is it important?
Periodically measuring the energy of a clinical proton beam is an important quality assurance (QA) task. The method described here to perform this task is highly efficient compared to other methods described in the literature.
Perspectives
This is one of several methods we developed in our clinic to create a highly efficient QA program for our proton beam therapy practice.
Martin Bues
Mayo Foundation
Read the Original
This page is a summary of: Technical Note: Using dual step wedge and 2D scintillator to achieve highly precise and robust proton range quality assurance, Medical Physics, May 2018, Wiley,
DOI: 10.1002/mp.12951.
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