Design and Simulation of a Cusp Gun for a Gyro-Amplifier and Comparison with Experiment.

Author

Whyte, C.G. ; Cross, A.W. ; He, W. ; Phelps, A.D.R. ; Rafferty, E.G. ; Robertson, C.W. ; Ronald, K. ; Rowlands, D.H. ; Thomson, J. ; Young, A.R.

Author_Institution

Dept. of Phys., Strathclyde Univ., Glasgow

fYear

2006

fDate

11-12 Oct. 2006

Firstpage

28

Lastpage

31

Abstract

Gyro-amplifiers have potential as the high frequency RF drivers for particle accelerators. They require relativistic electron beams with low velocity spread and with a high fraction of the electron energy associated with the cyclotron motion. For harmonic operation and mode control an axis-encircling beam is desirable. The passage of an electron beam through a non-adiabatic magnetic field reversal (cusp) converts part of the electron beam´s axial velocity into axis-encircling transverse velocity. A cusp-based electron beam forming system, yielding a 10 MW, 150 kV, 70 A axis-encircling beam will be presented. This cusp gun is being designed as the electron beam source for a microwave gyro-amplifier that is relevant for high frequency accelerator applications. The latest results from numerical simulations and experiments are presented and compared

Keywords

electron beams; electron guns; gyrotrons; microwave amplifiers; numerical analysis; 10 MW; 150 kV; 70 A; cusp gun; cyclotron motion; electron beam forming system; harmonic operation; high frequency RF drivers; microwave gyroamplifiers; nonadiabatic magnetic field reversal; numerical simulations;

fLanguage

English

Publisher

iet

Conference_Titel

Pulsed Power Symposium, 2006. The Institution of Engineering and Technology

Conference_Location

Warrington

Print_ISBN

0-86341-688-8

Type

conf

Filename

4126126