Field-emission cathode gating for rf electron guns

We present a novel method of combining the most desirable characteristics of thermionic-cathode and photocathode rf guns, using a field-emission cathode and multiple rf frequencies. Simulations indicate that extremely low-emittance beams (on the order of 2 nm normalized emittance) at moderate beam c...

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Bibliographic Details
Main Authors: J. W. Lewellen, J. Noonan
Format: Article
Language:English
Published: American Physical Society 2005-03-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.8.033502