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:
Feb. 22, 2005
Filed:
Sep. 03, 2003
Gopal Shenoy, Naperville, IL (US);
John Lewellen, Plainfield, IL (US);
Deming Shu, Darien, IL (US);
Nikolai Vinokurov, Novosibirsk, RU;
Gopal Shenoy, Naperville, IL (US);
John Lewellen, Plainfield, IL (US);
Deming Shu, Darien, IL (US);
Nikolai Vinokurov, Novosibirsk, RU;
The United States of America as represented by the United States Department of Energy, Washington, DC (US);
Abstract
A new and improved undulator design is provided that enables a variable period length for the production of synchrotron radiation from both medium-energy and high-energy storage rings. The variable period length is achieved using a staggered array of pole pieces made up of high permeability material, permanent magnet material, or an electromagnetic structure. The pole pieces are separated by a variable width space. The sum of the variable width space and the pole width would therefore define the period of the undulator. Features and advantages of the invention include broad photon energy tunability, constant power operation and constant brilliance operation.