Confined energy distribution for charged particle beams
Abstract
A charged particle beam is formed to a relatively larger area beam which is well-contained and has a beam area which relatively uniformly deposits energy over a beam target. Linear optics receive an accelerator beam and output a first beam with a first waist defined by a relatively small size in a first dimension normal to a second dimension. Nonlinear optics, such as an octupole magnet, are located about the first waist and output a second beam having a phase-space distribution which folds the beam edges along the second dimension toward the beam core to develop a well-contained beam and a relatively uniform particle intensity across the beam core. The beam may then be expanded along the second dimension to form the uniform ribbon beam at a selected distance from the nonlinear optics. Alternately, the beam may be passed through a second set of nonlinear optics to fold the beam edges in the first dimension. The beam may then be uniformly expanded along the first and second dimensions to form a well-contained, two-dimensional beam for illuminating a two-dimensional target with a relatively uniform energy deposition.
- Inventors:
-
- (Los Alamos, NM)
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM
- OSTI Identifier:
- 867552
- Patent Number(s):
- 4962317
- Assignee:
- United States of America as represented by United States (Washington, DC) LANL
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- confined; energy; distribution; charged; particle; beams; beam; formed; relatively; larger; well-contained; uniformly; deposits; target; linear; optics; receive; accelerator; output; waist; defined; size; dimension; normal; nonlinear; octupole; magnet; located; phase-space; folds; edges; core; uniform; intensity; expanded; form; ribbon; selected; distance; alternately; passed; set; fold; dimensions; two-dimensional; illuminating; deposition; accelerator beam; selected distance; beam target; uniform energy; uniform particle; particle beam; charged particle; energy distribution; particle beams; relatively uniform; energy deposition; relatively larger; optics receive; nonlinear optic; beam core; deposits energy; /250/
Citation Formats
Jason, Andrew J., and Blind, Barbara. Confined energy distribution for charged particle beams. United States: N. p., 1990.
Web.
Jason, Andrew J., & Blind, Barbara. Confined energy distribution for charged particle beams. United States.
Jason, Andrew J., and Blind, Barbara. Mon .
"Confined energy distribution for charged particle beams". United States. https://www.osti.gov/servlets/purl/867552.
@article{osti_867552,
title = {Confined energy distribution for charged particle beams},
author = {Jason, Andrew J. and Blind, Barbara},
abstractNote = {A charged particle beam is formed to a relatively larger area beam which is well-contained and has a beam area which relatively uniformly deposits energy over a beam target. Linear optics receive an accelerator beam and output a first beam with a first waist defined by a relatively small size in a first dimension normal to a second dimension. Nonlinear optics, such as an octupole magnet, are located about the first waist and output a second beam having a phase-space distribution which folds the beam edges along the second dimension toward the beam core to develop a well-contained beam and a relatively uniform particle intensity across the beam core. The beam may then be expanded along the second dimension to form the uniform ribbon beam at a selected distance from the nonlinear optics. Alternately, the beam may be passed through a second set of nonlinear optics to fold the beam edges in the first dimension. The beam may then be uniformly expanded along the first and second dimensions to form a well-contained, two-dimensional beam for illuminating a two-dimensional target with a relatively uniform energy deposition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}