Particle beam irradiation apparatus and control method of the particle beam irradiation apparatus
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United States of America Patent
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Jul 16, 2013
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Feb 7, 2011
filing date -
Feb 10, 2010
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Abstract
A particle beam irradiation apparatus that can measure and display a dose two-dimensional distribution during scan while reducing degradation of a particle beam shape, including a particle beam generation portion; a particle beam emission control portion; a two-dimensional beam scanning portion; a sensor portion including first linear electrodes arranged in parallel in a first direction and second linear electrodes arranged in parallel in a second direction orthogonal to the first direction; a beam shape calculation portion that calculates a center of gravity of the particle beam from outputs of each the first linear and second linear electrodes and that obtains a two-dimensional beam shape of the particle beam around the center of gravity; a storage portion that accumulates and stores the two-dimensional beam shapes; and a display portion that displays the two-dimensional beam shapes as a two-dimensional distribution of a dose.
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