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Title: Mode trap for absorbing transverse modes of an accelerated electron beam

Abstract

A mode trap to trap and absorb transverse modes formed by a beam in a linear accelerator includes a waveguide having a multiplicity of electrically conductive (preferably copper) irises and rings, each iris and ring including an aperture, and the irises and rings being stacked in a side-by-side, alternating fashion such that the apertures of the irises and rings are concentrically aligned. An absorbing material layer such as a dielectric is embedded in each iris and ring, and this absorbing material layer encircles, but is circumferentially spaced from its respective aperture. Each iris and ring includes a plurality of circumferentially spaced slots around its aperture and extending radially out toward its absorbing material layer.

Inventors:
 [1]
  1. (Woodridge, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
869335
Patent Number(s):
5317234
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
mode; trap; absorbing; transverse; modes; accelerated; electron; beam; absorb; formed; linear; accelerator; waveguide; multiplicity; electrically; conductive; preferably; copper; irises; rings; iris; including; aperture; stacked; side-by-side; alternating; fashion; apertures; concentrically; aligned; material; layer; dielectric; embedded; encircles; circumferentially; spaced; respective; plurality; slots; extending; radially; material layer; extending radially; circumferentially spaced; absorbing material; electrically conductive; electron beam; linear accelerator; spaced slots; mode trap; transverse mode; transverse modes; extending radial; accelerated electron; sorbing material; /315/333/

Citation Formats

Chojnacki, Eric P. Mode trap for absorbing transverse modes of an accelerated electron beam. United States: N. p., 1994. Web.
Chojnacki, Eric P. Mode trap for absorbing transverse modes of an accelerated electron beam. United States.
Chojnacki, Eric P. Sat . "Mode trap for absorbing transverse modes of an accelerated electron beam". United States. https://www.osti.gov/servlets/purl/869335.
@article{osti_869335,
title = {Mode trap for absorbing transverse modes of an accelerated electron beam},
author = {Chojnacki, Eric P.},
abstractNote = {A mode trap to trap and absorb transverse modes formed by a beam in a linear accelerator includes a waveguide having a multiplicity of electrically conductive (preferably copper) irises and rings, each iris and ring including an aperture, and the irises and rings being stacked in a side-by-side, alternating fashion such that the apertures of the irises and rings are concentrically aligned. An absorbing material layer such as a dielectric is embedded in each iris and ring, and this absorbing material layer encircles, but is circumferentially spaced from its respective aperture. Each iris and ring includes a plurality of circumferentially spaced slots around its aperture and extending radially out toward its absorbing material layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

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