Design and Optimization of a Sheet Beam Electron Gun for Terahertz SDV-TWTs

A Pierce-type sheet beam electron gun for a terahertz staggered double vane traveling wave tube (SDV-TWT) is designed, which can achieve high output power and broad bandwidth. With the combination of theoretical design and 3D simulation, an electron beam with uniform cross section can be achieved wi...

Full description

Saved in:
Bibliographic Details
Published in2022 23rd International Vacuum Electronics Conference (IVEC) pp. 01 - 02
Main Authors Shang, Ying, Shu, Guoxiang, Liang, Zhaolun, Huang, Kaihang, He, Wenlong, Ruan, Cunjun
Format Conference Proceeding
LanguageEnglish
Published IEEE 25.04.2022
Subjects
compression edge distortion
Electron beam applications
electron gun
Electron guns
Focusing
SDV-TWT
sheet electron beam
Systematics
Three-dimensional displays
Vacuum systems
Voltage
Online AccessGet full text

Cover

More Information
Summary:A Pierce-type sheet beam electron gun for a terahertz staggered double vane traveling wave tube (SDV-TWT) is designed, which can achieve high output power and broad bandwidth. With the combination of theoretical design and 3D simulation, an electron beam with uniform cross section can be achieved with beam voltage of 25 kV and beam current of 0.25 A. The distortion of beam edge is optimized by adjusting the aspect ratio of cathode and the focus angle of focusing electrode in width. Moreover, the detail design process is put forward to provide a systematic method to optimize the Pierce-type sheet beam electron gun for arbitrary terahertz vacuum devices.
DOI:10.1109/IVEC53421.2022.10292362