Numerical modeling and experiments by forming electron beam for relativistic klystron on linear induction accelerator

Edvin G. Furman; Petr Ya. Isakov; Alexander S. Sulakshin; Vasilii V. Vasil'ev

doi:10.1117/12.218585

8 September 1995 Numerical modeling and experiments by forming electron beam for relativistic klystron on linear induction accelerator

Edvin G. Furman, Petr Ya. Isakov, Alexander S. Sulakshin, Vasilii V. Vasil'ev

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Proceedings Volume 2557, Intense Microwave Pulses III; (1995) https://doi.org/10.1117/12.218585
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The results of numercial modeling and experimental investigations of the linear induction accelerator operation where relativistic clystron is applied as a load are presented. The electron gun with the dielectric emitter (DE) is employed as the injector for this system. As a result of this investigation, the electro-optical system has been successfully realized allowing us to form electron beams sufficiently homogeneous in cross-section with current level of no less than 150 A. Compression of the beam from DE at the first stage of moving is supported, essentially, due to a system of focusing electrodes, similar to Pierce optics. Then, compression of the beam to the size required for its free motion in the anode tract and clystron's drift tube occurs in increasing external magnetic field. In this purpose, the configuration of tracking magnetic field was calculated and suitable magnetic system has been made. The results obtained experimentally are in good agreement with calculated data. With emitting dielectric surface of 50mm in diameter the laminar electron beam of 8mm in diameter was obtained. At accelerating voltage of 400kV and pulse duration of 120ns, required for the excitation of the X-band clystron amplifier the value of current was of the order of 200 A. Prints of the beam on targets allow us to make the same findings.

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Edvin G. Furman, Petr Ya. Isakov, Alexander S. Sulakshin, and Vasilii V. Vasil'ev "Numerical modeling and experiments by forming electron beam for relativistic klystron on linear induction accelerator", Proc. SPIE 2557, Intense Microwave Pulses III, (8 September 1995); https://doi.org/10.1117/12.218585

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KEYWORDS

Electron beams

Magnetism

Dielectrics

Electrodes

Electro optical systems

Numerical modeling

Capacitors

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