Abstract:
Various embodiments of a vacuum electronic device, a hybrid magnet for a vacuum electronic device and methods of making a hybrid magnet for a vacuum electronic device are disclosed herein. In one embodiment, a hybrid magnet for a vacuum electronic device includes a first magnet, a second magnet positioned in spaced-apart relation with the first magnet and defining a gap between the first magnet and the second magnet, and a non-magnetic spacer positioned in a portion of the gap between the first magnet and second magnet and connected to the first magnet and the second magnet.
Abstract:
An irradiation apparatus includes: a measurement device including a shield in which plural apertures are formed, and plural detectors configured to respectively detect plural charged particle beams respectively having passed through the plural apertures; a scanning mechanism configured to perform scanning of the plural beams and the measurement device relative to each other so that the plural beams respectively traverse edges of the plural apertures; and a controller configured to perform control of the scanning mechanism and the measurement device to obtain a characteristic of each beam. The controller is configured to perform the control such that in a period of the scanning, an energy, shielded by the shield, out of an energy of one beam increases with time, while an energy, shielded by the shield, out of an energy of another beam decreases with time.
Abstract:
The invention comprises a patient positioning method and apparatus used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. The patient positioning system is used to translate the patient and/or rotate the patient into a zone where the proton beam can scan the tumor using a targeting system. The patient positioning system is optionally used in conjunction with systems used to constrain movement of the patient, such as semi-vertical, sitting, or laying positioning systems.