Review of the relativistic magnetron

  title={Review of the relativistic magnetron},
  author={Dmitrii Andreev and Artem Kuskov and Edl Schamiloglu},
  journal={Matter and Radiation at Extremes},
The cavity magnetron is the most compact, efficient source of high-power microwave (HPM) radiation. The imprint that the magnetron has had on the world is comparable to the invention of the nuclear bomb. High- and low-power magnetrons are used in many applications, such as radar systems, plasma generation for semiconductor processing, and—the most common—microwave ovens for personal and industrial use. Since the invention of the magnetron in 1921 by Hull, scientists and engineers have improved… 
An Axial Output Relativistic Magnetron Fed by a Split Cathode and Magnetically Insulated by a Low-Power Solenoid
One of the main difficulties in designing a relativistic magnetron producing high-power microwaves (HPMs) to be compact, is the power source required to feed the solenoid producing the axial magnetic
Experimental and numerical study of a split cathode fed relativistic magnetron
The relativistic magnetron is one of the most efficient high power microwave (HPM) sources but pulse shortening, the result of explosive cathode plasma's radial expansion toward the anode, makes it
Highly efficient compact gigawatt‐level microwave source using relativistic electrons: radial relativistic magnetron
The relativistic magnetron is one of the most attractive high-power microwave sources, due to its compactness with high efficiency. It can generate hundreds of megawatts of microwave power in the L-
Preliminary investigation of a magnetically insulated relativistic backward wave oscillator operating in the C-band with low magnetic field
The design and preliminary results for a C-band relativistic backward wave oscillator (RBWO), which is magnetically well insulated, are presented. Under an external magnetic field of 0.36 T, the RBWO
A Rectangular Vane-Type Relativistic Magnetron With Diffraction Output
In this article, a GW-level and high-efficiency <inline-formula> <tex-math notation="LaTeX">$S$ </tex-math></inline-formula>-band eight-cavity relativistic magnetron with diffraction output (MDO) is
Particle-in-cell model of a relativistic magnetron system driven by a pulse forming network Marx generator
A three dimensional particle-in-cell (PIC) model of a relativistic magnetron (RM) is established using CST Studio Suite. As we adopted a novel technique to imitate pulse forming action of pulser,
Effects of transverse electron beam motion in a relativistic backward wave oscillator operating at low guiding magnetic field
We found that the electron drift length, L1, between a diode area and a resonant reflector in a relativistic backward wave oscillator operating at a low guiding magnetic field has a periodical
Emission Features and Structure of an Electron Beam versus Gas Pressure and Magnetic Field in a Cold-Cathode Coaxial Diode
The structure of the emission surface of a cold tubular cathode and electron beam was investigated as a function of the magnetic field in the coaxial diode of the high-current accelerator. The
Analysis of Injected Electron Beam Propagation in a Planar Crossed-Field Gap
This paper examines basic crossed-field device physics in a planar configuration, specifically electron beam perturbation and instability as a function of variation in magnetic field, and angle
Frequency and Power Measurements on the Harmonic Recirculating Planar Magnetron
The harmonic recirculating planar magnetron (HRPM) is a frequency-agile, multispectral HPM source. The HRPM implements an <inline-formula> <tex-math notation="LaTeX">$L$


Application of a Magnetic Mirror to Increase Total Efficiency in Relativistic Magnetrons.
Particle-in-cell simulations show that this configuration of relativistic magnetron increases the electronic efficiency from 86% to 92%, and increases the total efficiency up to the maximal electronic efficiency.
Operation of a Six-Cavity $S$ -Band Relativistic Magnetron at Frequencies in the Range of Its Resonant Response
Experimental research on the influence of the frequency characteristic of the anode block on the parameters of relativistic S-band magnetron operation is described. A magnetron with a six-vane anode
Compact Relativistic Magnetron With Gaussian Radiation Pattern
A compact A6 relativistic magnetron is proposed which operates in the π-mode and whose radiation is extracted axially as a TE11 mode through a cylindrical waveguide with the same cross section as
The Magnetron and the Beginnings of the Microwave Age
In the autumn of 1940, a British technical and scientific mission, headed by Sir Henry Tizard, brought to the United States a famous black tin trunk containing, among other things, an electronic
Plasma parameters of an active cathode during relativistic magnetron operation
The results of time- and space-resolved spectroscopic studies of the plasma produced at the surface of the ferroelectric cathode during the operation of an S-band relativistic magnetron generating
Experimental Demonstration of a High-Efficiency Relativistic Magnetron With Diffraction Output With Spherical Cathode Endcap
A previous computational study of a relativistic magnetron with diffractive output at the University of New Mexico using the particle-in-cell code MAGIC achieved an efficiency of 70%. The research
S-band relativistic magnetron operation with an active plasma cathode
Results of experimental research on a relativistic S-band magnetron with a ferroelectric plasma source as a cathode are presented. The cathode plasma was generated using a driving pulse (∼3 kV, 200
$S$ -Band Relativistic Magnetron Operation With Multichannel Radial Outputs of the Microwave Power
The results of an experimental study of the S-band magnetron operation with a six-vane anode block and multichannel radial outputs for microwave power extraction are presented. The magnetron was
Projection ablation lithography cathode for high-current, relativistic magnetron
Initial results are presented of an innovative cathode operating in a relativistic magnetron powered by an accelerator with parameters: −0.3 MV, 1–10 kA, and 0.5 μs pulse length. This cathode is
Transient operation of the relativistic S-band magnetron with radial output
The influence of the time-varying accelerating voltage and electromagnetic waves reflected from the output window of the antenna on the operation of a relativistic S-band magnetron with radial output