The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
Oct. 09, 2018
Hitachi, Ltd., Tokyo, JP;
Takamichi Aoki, Tokyo, JP;
Yuto Nakashima, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An accelerator includes: a plurality of ion sources, andthat generate a plurality of different types of ions; an electromagnetthat generates a magnetic field; and a high frequency cavitythat generates a high frequency electric field. The center of an orbit of the ion is eccentric with acceleration, the magnetic field generated by the electromagnetis a magnetic field distribution that decreases outward in a radial direction of the orbit, the high frequency cavityaccelerates the ion up to a predetermined energy by the high frequency electric field adjusted to an orbital frequency in response to a nuclide of the incident ion, and a frequency of the high frequency electric field changes following an energy of the ion. Accordingly, it is possible to provide an accelerator and a particle therapy system capable shortening an irradiation time with a small size.