Intense space-charge beam physics relevant to relativistic klystron amplifiers

Journal Article · Sat Oct 01 00:00:00 EDT 1994 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/27.338288· OSTI ID:6535453

Carlsten, B E; Faehl, R J; Fazio, M V; Haynes, W B; Stringfield, R M ^[1]

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1. Los Alamos National Lab., NM (United States)

In this paper, the authors examine intense space-charge beam physics that is relevant to beam bunching and extraction in a mildly relativistic klystron amplifier, and give numerical examples for a 5 kA, 500 keV electron beam in a 1.3 GHz structure. Much of the peculiar beam physics in these types of devices results from the partitioning of beam energy into kinetic and potential parts. Both tenuous-nonrelativistic and intense-relativistic beams produce effects different in nature from those produced by intense, mildly relativistic beams because the potential energy requirements are either negligible or fixed. In particular, the authors demonstrate anomalous beam bunching aided by the nonlinear potential requirements and they discuss maximum power extraction as a function of beam bunching. They show that although the space-charge effects can produce quite high harmonic current content, the maximum power extraction from the beam into RF typically occurs at relatively modest bunching.

• OSTI ID: 6535453
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 22:5; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
BEAM BUNCHING
BEAM DYNAMICS
BEAM EXTRACTION
BEAMS
DATA
ELECTRON BEAMS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
INFORMATION
KLYSTRONS
LEPTON BEAMS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
NUMERICAL DATA
PARTICLE BEAMS
RELATIVISTIC RANGE
SPACE CHARGE
THEORETICAL DATA