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:
-
- Woodridge, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 869335
- Patent Number(s):
- 5317234
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
- 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 = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}
Works referenced in this record:
Measurement of deflectionâmode damping in an accelerating structure
journal, May 1991
- Chojnacki, E.; Gai, W.; Ho, C.
- Journal of Applied Physics, Vol. 69, Issue 9