The multiplet cavity: A buncher for broad-bandwidth klystron amplifiers

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.533097· OSTI ID:377854

Bromborsky, A ^[1]

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1. Army Research Lab., Adelphi, MD (United States)

The bandwidth of a klystron output cavity scales (approximately) as {wp}{sup 0.8} P{sup 0.2}, where {wp} is the beam perveance and P is the beam power. For high-perveance ({wp} > 10 {micro}pervs) high-power (P > 10 kW) electron beams, it is relatively straightforward to design a broad-band output cavity. However, the design of the input cavity of the broad-band klystron is in some ways more difficult. The purpose of the input cavity is to produce a velocity-modulated amplitude that will optimize the bandwidth of the entire klystron system, while providing a magnitude of velocity modulation large enough to minimize the length of the klystron. This paper shows how a multiplet (multiple cavity) buncher cavity can be designed to provide broad-band (>20%) operation while keeping short the drift section length of the klystron.

• OSTI ID: 377854
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 3 Vol. 24; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BEAM BUNCHING
BEAM EMITTANCE
CAVITY RESONATORS
DESIGN
FREQUENCY MODULATION
KLYSTRONS
SCALING LAWS
SPACE CHARGE