Open AccessПрозрачные лампы бегущей волны с многоскоростными электронными пучками
Author(s) -
Ю А Калинин,
А.В. Стародубов
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.18.46612.17266
Subject(s) - space charge , laminar flow , cathode ray , electron , physics , optics , traveling wave tube , turbulence , bunches , space (punctuation) , beam (structure) , atomic physics , materials science , optoelectronics , mechanics , nuclear physics , computer science , amplifier , cmos , operating system
We present results of a theoretical and experimental investigation of the output characteristics of transparent (containing no local absorbers) traveling-wave tubes (TWTs) operating on multivelocity (turbulent) electron beams. It is established that higher gain (up to 20 dB) and higher efficiency (40–50%) can be achieved in this case in comparison to the output characteristics of transparent TWTs employing monovelocity (laminar) electron beams. This effect is explained by the formation of space-charge bunches of much higher density in multivelocity electron beams than in monovelocity beams.