High gradient lens for charged particle beam

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:: Chen, Yu-Jiuan

Issue Date:: 2014-04-29

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

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Works referenced in this record:

Compact accelerator for medical therapy
patent, May 2010

Caporaso, George; Chen, Yu-Jiuan; Hawkins, Steven
US Patent Document 7,710,051
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7710051

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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