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:
Oct. 20, 2015

Filed:

Nov. 20, 2014
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Yoshihito Hori, Tokyo, JP;

Takayoshi Matsushita, Tokyo, JP;

Kunio Moriyama, Tokyo, JP;

Masahiro Tadokoro, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/02 (2006.01); A61N 5/00 (2006.01); H01J 29/41 (2006.01); A61N 5/10 (2006.01); G01T 1/29 (2006.01);
U.S. Cl.
CPC ...
A61N 5/1065 (2013.01); A61N 5/1077 (2013.01); G01T 1/2935 (2013.01); A61N 2005/1074 (2013.10);
Abstract

A beam monitor system having a simple configuration for improving a measurement precision specifying a position and the width. A beam monitor system, comprising collection electrodes that include a plurality of groups each having a plurality of adjacent wire electrodes, and detect an ionized particle beam passing therethrough, a first signal processing device that sets one wire electrode in the groups of the collection electrodes as a typical wire electrode, receives a detection signal output from the typical wire electrode to process the signal and a beam monitor controller that obtains a beam position of the ionized particle beam that has passed through the wire electrodes on the basis of a processed signal from the first signal processing device.


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