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.

Date of Patent:
Sep. 15, 2009

Filed:

Mar. 06, 2007
Applicants:

Kazuo Hiramoto, Hitachiohta, JP;

Hiroshi Akiyama, Hitachiohta, JP;

Masaki Yanagisawa, Hitachi, JP;

Hisataka Fujimaki, Hitachinaka, JP;

Alfred Smith, Houston, TX (US);

Wayne Newhauser, Houston, TX (US);

Inventors:

Kazuo Hiramoto, Hitachiohta, JP;

Hiroshi Akiyama, Hitachiohta, JP;

Masaki Yanagisawa, Hitachi, JP;

Hisataka Fujimaki, Hitachinaka, JP;

Alfred Smith, Houston, TX (US);

Wayne Newhauser, Houston, TX (US);

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention is intended to increase the number of patients treatable using one wheel having a thickness varied in the rotating direction to change energy of an ion beam passing the wheel. Ion beam delivery equipment for irradiating an ion beam to a patient for treatment comprises a beam generator for producing and accelerating the ion beam, an beam delivery nozzle including a range modulation wheel which has a predetermined thickness distribution in the rotating direction and is rotated on a travel passage of the ion beam generated from the beam generator to control a range of the ion beam, and an irradiation controller for controlling the beam producing and accelerating operation of the beam generator in accordance with the phase of rotation of the range modulation wheel.


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