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Title: Large-orbit coaxial-structure cyclotron autoresonance maser

Abstract

We present a conceptual proposal for a large-orbit coaxial-structure cyclotron autoresonance maser (CARM), wherein the rf structure is a coaxial waveguide or cavity and a large-orbit electron beam encircles the axis of the coaxial structure. Both dispersion analysis and nonlinear simulations demonstrate the feasibility of the proposal. The large-orbit coaxial-structure CARM could be expected to operate in millimeter and submillimeter wave ranges with high power, low operating magnetic field, and ultrahigh gain. It is found that electron-beam velocity spread substantially decreases the power of CARMs, but this adverse influence might be offset by a proper taper of the axial magnetic field.

Authors:
;  [1];  [2]
  1. China Center of Advanced Science and Technology (World Lab), P.O. Box 8730, Beijing 100080 (China) and Institute of Photoelectronics, Campus Mail Box 50, Southwest Jiaotong University, Chengdu, Sichuan 610031 (China)
  2. (Germany) and Institute of High-Frequency Techniques and Electronics, University Karlsruhe, Kaiserstrasse 12, D-76128 Karlsruhe (Germany)
Publication Date:
OSTI Identifier:
20778630
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 88; Journal Issue: 3; Other Information: DOI: 10.1063/1.2166687; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CYCLOTRONS; DISPERSIONS; ELECTRON BEAMS; MAGNETIC FIELDS; MASERS; NONLINEAR PROBLEMS; ORBITS; SIMULATION; WAVEGUIDES

Citation Formats

Zhang Shichang, Thumm, Manfred, and Forschungszentrum Karlsruhe, Institute for Pulsed Power and Microwave Technology, Postfach 3640, D-76021 Karlsruhe. Large-orbit coaxial-structure cyclotron autoresonance maser. United States: N. p., 2006. Web. doi:10.1063/1.2166687.
Zhang Shichang, Thumm, Manfred, & Forschungszentrum Karlsruhe, Institute for Pulsed Power and Microwave Technology, Postfach 3640, D-76021 Karlsruhe. Large-orbit coaxial-structure cyclotron autoresonance maser. United States. doi:10.1063/1.2166687.
Zhang Shichang, Thumm, Manfred, and Forschungszentrum Karlsruhe, Institute for Pulsed Power and Microwave Technology, Postfach 3640, D-76021 Karlsruhe. Mon . "Large-orbit coaxial-structure cyclotron autoresonance maser". United States. doi:10.1063/1.2166687.
@article{osti_20778630,
title = {Large-orbit coaxial-structure cyclotron autoresonance maser},
author = {Zhang Shichang and Thumm, Manfred and Forschungszentrum Karlsruhe, Institute for Pulsed Power and Microwave Technology, Postfach 3640, D-76021 Karlsruhe},
abstractNote = {We present a conceptual proposal for a large-orbit coaxial-structure cyclotron autoresonance maser (CARM), wherein the rf structure is a coaxial waveguide or cavity and a large-orbit electron beam encircles the axis of the coaxial structure. Both dispersion analysis and nonlinear simulations demonstrate the feasibility of the proposal. The large-orbit coaxial-structure CARM could be expected to operate in millimeter and submillimeter wave ranges with high power, low operating magnetic field, and ultrahigh gain. It is found that electron-beam velocity spread substantially decreases the power of CARMs, but this adverse influence might be offset by a proper taper of the axial magnetic field.},
doi = {10.1063/1.2166687},
journal = {Applied Physics Letters},
number = 3,
volume = 88,
place = {United States},
year = {Mon Jan 16 00:00:00 EST 2006},
month = {Mon Jan 16 00:00:00 EST 2006}
}