Effect of a longitudinal magnetic field on the emission characteristics of a forevacuum plasma electron source based on a hollow cathode discharge-Reference-Cited by-同舟云学术

Effect of a longitudinal magnetic field on the emission characteristics of a forevacuum plasma electron source based on a hollow cathode discharge

Published:2021-09-23 Issue:4 Volume: Page:5-11
ISSN:1996-0948
Container-title:Applied Physics
language:
Short-container-title:Prikl. fiz.

Author:

Bakeev Ilya¹,Zenin Alekcey¹,Klimov Alexander¹,Oks Efim²

Affiliation:

1. Tomsk State University of Control Systems and Radioelectronics

2. Tomsk State University of Control Systems and Radioelectronics; Institute of High Current Electronics, SB RAS

Abstract

The effect of a longitudinal magnetic field on the emission characteristics of a forevacuum plasma electron source based on a discharge with a hollow cathode is studied. It is shown that, starting from a certain threshold value of the induction Bc, the magnetic field leads to a decrease in the plasma concentration on the axis of the cathode cavity. With a decrease in the diameter of the cathode cavity, the threshold value of Bc increases. On the other hand, the longitudinal magnetic field makes it possible to increase the diameter of the emission chan-nel, which contributes to a significant increase in the current of electron emission from the plasma. In this case, the degree of increase in the emission current is determined by the ge-ometry of the cathode cavity and the pressure of the working gas.

Publisher

Joint-Stock Company Scientific and Production Association - ORION

Subject

General Physics and Astronomy

Reference15 articles.

1. N. N. Rykalin, I. V. Zuev, and A. A. Uglov, Fundamentals of electron-beam treatment of materials (Mashi-nostroenie, Moscow, 1978) [in Russian].

2. N. N. Rykalin, A. A. Uglov, I. V. Zuev, and A. N. Kokora, Laser and electron-beam processing of materials (Mashinostroenie, Moscow, 1985) [in Russian].

3. A. M. Filachev and B. I. Fouks, Applied Physics, No. 3, 39 (1996) [in Russian].

4. V. A. Burdovitsin, A. S. Klimov, A. V. Medovnik, E. M. Oks, and Yu. G. Yushkov, Forevacuum Plasma Elec-tron Sources (Izd. Tomsk. univer., Tomsk, 2014) [in Russian].

5. V. A. Burdovitsin, A. S. Klimov, and E. M. Oks, Tech. Phys. Lett. 35 (6), 511 (2009).