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:
Dec. 19, 2017

Filed:

Oct. 05, 2016
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Hiroshi Inoue, Chiyoda-ku, JP;

Yusuke Sakamoto, Chiyoda-ku, JP;

Kazuo Yamamoto, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 5/10 (2006.01); G21K 5/04 (2006.01); H01J 37/304 (2006.01); H01J 37/244 (2006.01); H01J 37/302 (2006.01);
U.S. Cl.
CPC ...
H01J 37/304 (2013.01); A61N 5/1048 (2013.01); A61N 5/1077 (2013.01); H01J 37/244 (2013.01); H01J 37/3023 (2013.01);
Abstract

A particle beam irradiation apparatus includes an accelerator that extracts a pulse-shaped particle beam and a switching system that switches a particle beam to prevent irradiation of a subject. The apparatus also includes a database in which a time dependency of the number of particles in one pulse of the particle beam is stored in association with a driving condition of the accelerator. A computer processor calculates a timing of switching by the switching system, based on a desired accumulated number of particles to be irradiated onto the irradiation subject and the time dependency of the number of particles in one pulse of the particle beam, and a switching controller controls the switching system based on the timing of switching calculated by the computer processor.


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