Non-axisymmetric periodic permanent magnet focusing system

Electric lamp and discharge devices: systems – High energy particle accelerator tube – Magnetic field acceleration means

Reexamination Certificate

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C315S005350, C315S039000, C335S302000, C335S306000, C335S210000, C250S3960ML

Reexamination Certificate

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07663327

ABSTRACT:
A permanent magnet focusing system includes an electron gun that provides an electron ribbon beam having an elliptical shape. A plurality of permanent magnets provide transport for the electron ribbon beam. The permanent magnets produce a non-axisymmetric periodic permanent magnet (PPM) focusing field to allow the electron ribbon beam to be transported in the permanent magnet focusing system.

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