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Evolution of a preformed electron beam propagating through a conducting cylinder

Published online by Cambridge University Press:  01 April 1997

HAN S. UHM
HAN S. UHM
Affiliation:
Naval Surface Warfare Center, 9500 MacArthur Boulevard, West Bethesda, Maryland 20817-5700, USA
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Abstract

A theory of current and energy modulations in an electron beam propagating through a grounded drift tube is developed. The theoretical analysis is based on the assumption that each beam segment has a prescribed current profile at the drift-tube entrance. It is shown that the current modulation amplitude decreases, reaches its minimum value and increases as the beam propagates downstream. The current modulation in the linear regime is described by a sum of the forward and backward density waves. On the other hand, the energy modulation in the linear regime is described by the difference between the forward and backward density waves.

Type
Research Article
Information
Journal of Plasma Physics , Volume 57 , Issue 3 , April 1997 , pp. 515 - 522
Copyright
1997 Cambridge University Press

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