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Title: Electron beam control for barely separated beams

A method for achieving independent control of multiple beams in close proximity to one another, such as in a multi-pass accelerator where coaxial beams are at different energies, but moving on a common axis, and need to be split into spatially separated beams for efficient recirculation transport. The method for independent control includes placing a magnet arrangement in the path of the barely separated beams with the magnet arrangement including at least two multipole magnets spaced closely together and having a multipole distribution including at least one odd multipole and one even multipole. The magnetic fields are then tuned to cancel out for a first of the barely separated beams to allow independent control of the second beam with common magnets. The magnetic fields may be tuned to cancel out either the dipole component or tuned to cancel out the quadrupole component in order to independently control the separate beams.
Inventors:
;
Issue Date:
OSTI Identifier:
1351807
Assignee:
JEFFERSON SCIENCE ASSOCIATES, LLC TJNAF
Patent Number(s):
9,629,231
Application Number:
15/051,782
Contract Number:
AC05-06OR23177
Resource Relation:
Patent File Date: 2016 Feb 24
Research Org:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

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