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:
Nov. 10, 2015

Filed:

Oct. 29, 2014
Applicant:

Jefferson Science Associates, Llc, Newport News, VA (US);

Inventors:

David R. Douglas, Yorktown, VA (US);

Christopher Tennant, Williamsburg, VA (US);

Assignee:

JEFFERSON SCIENCE ASSOCIATES, LLC, Newport News, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21K 5/04 (2006.01); H01J 37/147 (2006.01);
U.S. Cl.
CPC ...
H01J 37/147 (2013.01); H01J 2237/049 (2013.01); H01J 2237/152 (2013.01);
Abstract

A modulated-bending recirculating system that avoids CSR-driven breakdown in emittance compensation by redistributing the bending along the beamline. The modulated-bending recirculating system includes a) larger angles of bending in initial FODO cells, thereby enhancing the impact of CSR early on in the beam line while the bunch is long, and 2) a decreased bending angle in the final FODO cells, reducing the effect of CSR while the bunch is short. The invention describes a method for controlling the effects of CSR during recirculation and bunch compression including a) correcting chromatic aberrations, b) correcting lattice and CSR-induced curvature in the longitudinal phase space by compensating T, and c) using lattice perturbations to compensate obvious linear correlations x-dp/p and x'-dp/p.


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