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:
Nov. 19, 2019
Filed:
Sep. 07, 2017
Applicant:
National Synchrotron Radiation Research Center, Hsinchu, TW;
Inventors:
Assignee:
NATIONAL SYNCHROTRON RADIATION RESEARCH CENTER, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01); H05H 7/04 (2006.01); H01F 7/02 (2006.01); H05H 13/04 (2006.01); H01S 3/09 (2006.01);
U.S. Cl.
CPC ...
H05H 7/04 (2013.01); H01F 7/0278 (2013.01); H05H 13/04 (2013.01); H01S 3/0903 (2013.01);
Abstract
A helical permanent magnet structure includes at least one magnet assembly. The magnet assembly includes a plurality of permanent magnets and poles. The permanent magnets are with a magnetization direction, and formed as helical shape and arranged as a helical surface, the center of the helical surface has a longitudinal passage for being passed through by a charged particle. The poles are with the same amount of the permanent magnets, wherein the poles are magnetized by the permanent magnets and absorb on one side of the permanent magnets.