Non-axisymmetric charged-particle beam system

Details Non-axisymmetric charged-particle beam system Non-axisymmetric charged-particle beam system

2008-01-03

2009-11-03

Berman, Jack I (Department: 2881)

Radiant energy

With charged particle beam deflection or focussing

Magnetic lens

C250S298000, C250S299000, C250S300000, C315S501000, C315S500000, C313S34600R, C313S363100, C118S050100, C136S216000

Reexamination Certificate

active

07612346

ABSTRACT:
The charged-particle beam system includes a non-axisymmetric diode forms a non-axisymmetric beam having an elliptic cross-section. A focusing element utilizes a magnetic field for focusing and transporting the non-axisymmetric beam, wherein the non-axisymmetric beam is approximately matched with the channel of the focusing element.

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Basten, M.A. et al., “Two-plane focusing of high-space-charge electron beams using periodically cusped magnetic fields” Journal of Applied Physics, New York, vol. 85, No. 9, May 1999, pp. 6313-6322.
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