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An analytical model of the emittance of a field emission array cathode for high performance free electron lasers

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4 Author(s)
Jensen, K.L. ; Naval Res. Lab., Washington, DC, USA ; O'Shea, P.G. ; Feldman, Donald W. ; Shaw, J.L.

Advanced particle accelerators and free electron lasers (FEL's) require high brightness electron sources. A practical figure of merit for beam "optical quality" is rms emittance, and it relates to the ability to focus the electron beam within the laser beam optical mode within the wiggler for the laser threshold to be reached.

Published in:

Vacuum Nanoelectronics Conference, 2009. IVNC 2009. 22nd International

Date of Conference:

20-24 July 2009