PARTICLE THERAPY SYSTEM

摘要

The present invention provides a particle therapy system including an irradiation compensating device made up of an energy absorber, a first collimator, and a second collimator for use in a short-range region. The irradiation compensating device is characterized by a mechanism for attaching and detaching the first energy absorber, first collimator, and second collimator. The first collimator is located upstream where the beam diameter is small with a view to suppressing the width of the compensating device, thereby contributing to making the compensating device small and lightweight. The second collimator is located downstream to improve penumbrae.

主权项

1. A particle therapy system comprising:
an irradiation nozzle forming an irradiation field using a scanning method; and an irradiation compensating device used in a short-range region, the irradiation compensating device having an energy absorber, a first collimator, a second collimator, and a mechanism for attaching and detaching the energy absorber, the first collimator, and the second collimator, wherein the irradiation nozzle has a mechanism for attaching and detaching the irradiation compensating device.