Physics & Astronomy
cyclotrons
100%
masers
90%
radiation
64%
electron beams
59%
magnetospheres
54%
simulation
26%
output
21%
magnetic compression
18%
cyclotron frequency
14%
plasma diffusion
12%
space plasmas
11%
magnetic fields
11%
Earth surface
8%
radio waves
7%
propagation
7%
astrophysics
7%
electrons
7%
waveguides
7%
microwave frequencies
6%
backward waves
6%
students
6%
plasma density
6%
high altitude
6%
rings
6%
kinetic theory
5%
cut-off
5%
free energy
5%
Engineering & Materials Science
Cyclotrons
39%
Magnetosphere
32%
Electron beams
23%
Radiation
20%
Computer simulation
14%
Magnetic fields
11%
Plasma density
10%
Microwave frequencies
8%
Radio waves
8%
Free energy
7%
Electrons
6%
Plasmas
6%
Polarization
6%
Compaction
5%
Earth (planet)
5%
Fluxes
5%
Satellites
5%