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Title: Systems and methods of varying charged particle beam spot size

Abstract

Methods and devices enable shaping of a charged particle beam. A modified dielectric wall accelerator includes a high gradient lens section and a main section. The high gradient lens section can be dynamically adjusted to establish the desired electric fields to minimize undesirable transverse defocusing fields at the entrance to the dielectric wall accelerator. Once a baseline setting with desirable output beam characteristic is established, the output beam can be dynamically modified to vary the output beam characteristics. The output beam can be modified by slightly adjusting the electric fields established across different sections of the modified dielectric wall accelerator. Additional control over the shape of the output beam can be excreted by introducing intentional timing de-synchronization offsets and producing an injected beam that is not fully matched to the entrance of the modified dielectric accelerator.

Inventors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1154739
Patent Number(s):
8,822,946
Application Number:
13/343,705
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Chen, Yu-Jiuan. Systems and methods of varying charged particle beam spot size. United States: N. p., 2014. Web.
Chen, Yu-Jiuan. Systems and methods of varying charged particle beam spot size. United States.
Chen, Yu-Jiuan. Tue . "Systems and methods of varying charged particle beam spot size". United States. https://www.osti.gov/servlets/purl/1154739.
@article{osti_1154739,
title = {Systems and methods of varying charged particle beam spot size},
author = {Chen, Yu-Jiuan},
abstractNote = {Methods and devices enable shaping of a charged particle beam. A modified dielectric wall accelerator includes a high gradient lens section and a main section. The high gradient lens section can be dynamically adjusted to establish the desired electric fields to minimize undesirable transverse defocusing fields at the entrance to the dielectric wall accelerator. Once a baseline setting with desirable output beam characteristic is established, the output beam can be dynamically modified to vary the output beam characteristics. The output beam can be modified by slightly adjusting the electric fields established across different sections of the modified dielectric wall accelerator. Additional control over the shape of the output beam can be excreted by introducing intentional timing de-synchronization offsets and producing an injected beam that is not fully matched to the entrance of the modified dielectric accelerator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {9}
}

Patent:

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Works referenced in this record:

Two-dimensional microfabricated electrostatic einzel lens
journal, November 2003

  • Syms, R. R. A.; Michelutti, L.; Ahmad, M. M.
  • Sensors and Actuators A: Physical, Vol. 107, Issue 3, p. 285-295
  • DOI: 10.1016/j.sna.2003.08.001