You need JavaScript to view this

Cyclotron tubes - a theoretical study

Journal Article:

Abstract

The introduction presents a general discussion of electron cyclotron masers (ECM): resonance, relativistic effects, elementary quantum aspects, the classical relativistic bunching and the optimum value of the electric field. The practical structure - in particular that of the gyrotron - is specified only insofar as it is useful for understanding the following chapters. The main parameters are discussed. Section 2 develops a nonlinear adiabatic or orbital theory of electron motion which alleviates calculations considerably while keeping numerical errors low enough for many practical cases. Its results are compared to a rigorous integration in one case. Other cases show the importance of the electric field profile inside the resonant cavity. Section 3 is devoted to space charge phenomena, and, for the most part, to a linear theory with space charge. In its limited range of validity (low-energy electrons), the theory indicates a strong impact of space charge for low a.c. fields and exhibits a pure beam instability. Section 4 is devoted to circuit equations with emphasis on the special features of cavities consisting of a long waveguide near cutoff. The conclusion indicates some trends of gyrotron development and corresponding theoretical problems.
Authors:
Publication Date:
Dec 01, 1980
Product Type:
Journal Article
Reference Number:
EDB-81-102869
Resource Relation:
Journal Name: Arch. Elektron. Uebertrag.; (Germany, Federal Republic of); Journal Volume: 34:12
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MICROWAVE AMPLIFIERS; BEAM DYNAMICS; ALTERNATING CURRENT; BEAM BUNCHING; BEAM PROFILES; CAVITIES; DESIGN; ELECTRIC FIELDS; ELECTRON BEAMS; EQUATIONS; EQUIVALENT CIRCUITS; GHZ RANGE 01-100; NONLINEAR PROBLEMS; QUANTUM ELECTRONICS; RELATIVITY THEORY; RESONANCE; SPACE CHARGE; TRAJECTORIES; WAVEGUIDES; AMPLIFIERS; BEAMS; CURRENTS; ELECTRIC CURRENTS; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; FIELD THEORIES; FREQUENCY RANGE; GENERAL RELATIVITY THEORY; GHZ RANGE; LEPTON BEAMS; MICROWAVE EQUIPMENT; PARTICLE BEAMS; 700101* - Fusion Energy- Plasma Research- Confinement, Heating, & Production
OSTI ID:
6141379
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: AEUTA
Submitting Site:
DE
Size:
Pages: 473-484
Announcement Date:

Journal Article:

Citation Formats

Mourier, G. Cyclotron tubes - a theoretical study. Germany: N. p., 1980. Web.
Mourier, G. Cyclotron tubes - a theoretical study. Germany.
Mourier, G. 1980. "Cyclotron tubes - a theoretical study." Germany.
@misc{etde_6141379,
title = {Cyclotron tubes - a theoretical study}
author = {Mourier, G}
abstractNote = {The introduction presents a general discussion of electron cyclotron masers (ECM): resonance, relativistic effects, elementary quantum aspects, the classical relativistic bunching and the optimum value of the electric field. The practical structure - in particular that of the gyrotron - is specified only insofar as it is useful for understanding the following chapters. The main parameters are discussed. Section 2 develops a nonlinear adiabatic or orbital theory of electron motion which alleviates calculations considerably while keeping numerical errors low enough for many practical cases. Its results are compared to a rigorous integration in one case. Other cases show the importance of the electric field profile inside the resonant cavity. Section 3 is devoted to space charge phenomena, and, for the most part, to a linear theory with space charge. In its limited range of validity (low-energy electrons), the theory indicates a strong impact of space charge for low a.c. fields and exhibits a pure beam instability. Section 4 is devoted to circuit equations with emphasis on the special features of cavities consisting of a long waveguide near cutoff. The conclusion indicates some trends of gyrotron development and corresponding theoretical problems.}
journal = {Arch. Elektron. Uebertrag.; (Germany, Federal Republic of)}
volume = {34:12}
journal type = {AC}
place = {Germany}
year = {1980}
month = {Dec}
}