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Title: High gradient lens for charged particle beam

Patent ·
OSTI ID:1130052

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,710,454
Application Number:
13/343,700
OSTI ID:
1130052
Resource Relation:
Patent File Date: 2012 Jan 04
Country of Publication:
United States
Language:
English

References (10)

Individually accessible macrocell patent May 2000
Sequentially pulsed traveling wave accelerator patent August 2009
Compact accelerator for medical therapy patent May 2010
Ion transfer tube with spatially alternating DC fields patent July 2011
Efficient atmospheric pressure interface for mass spectrometers and method patent April 2012
Ion transfer arrangement with spatially alternating DC and viscous ion flow patent April 2012
High Gradient Lens for Charged Particle Beam patent-application
Systems and Methods of Varying Charged Particle Beam Spot Size patent-application July 2012
Charged Particle Beam Scanning Using Deformed High Gradient Insulator patent-application June 2013
Two-dimensional microfabricated electrostatic einzel lens journal November 2003