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Title: High gradient lens for charged particle beam

Methods and devices enable shaping of a charged particle beam. A dynamically adjustable electric lens includes a series of alternating a series of alternating layers of insulators and conductors with a hollow center. The series of alternating layers when stacked together form a high gradient insulator (HGI) tube to allow propagation of the charged particle beam through the hollow center of the HGI tube. A plurality of transmission lines are connected to a plurality of sections of the HGI tube, and one or more voltage sources are provided to supply an adjustable voltage value to each transmission line of the plurality of transmission lines. By changing the voltage values supplied to each section of the HGI tube, any desired electric field can be established across the HGI tube. This way various functionalities including focusing, defocusing, acceleration, deceleration, intensity modulation and others can be effectuated on a time varying basis.
Inventors:
Issue Date:
OSTI Identifier:
1130052
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
8,710,454
Application Number:
13/343,700
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2012 Jan 04
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Other works cited in this record:

Compact accelerator for medical therapy
patent, May 2010

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

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