Physics
Electron Beams
100%
Simulation
91%
Frequencies
72%
Microwave
71%
Electrons
68%
Maser
60%
Output
55%
Corrugated Waveguides
52%
Pulses
51%
Oscillator
47%
Region
44%
Amplifier
43%
Backward Waves
41%
Radiation
37%
Cyclotron
30%
Traveling Wave
29%
Utilization
27%
Free Electron
27%
Emission
24%
Broadband
24%
Stability
22%
Harmonics
21%
Gaps
21%
Bandwidth
20%
Speed
19%
Feedback
18%
Performance
17%
Magnetic Fields
16%
Particle
15%
Wave Interaction
13%
Cathode
13%
Frequency Ranges
12%
Thermionics
11%
Mirrors
11%
Diameters
10%
Independent Variables
10%
Muon
9%
Shapes
9%
Electric Potential
9%
Ionization
9%
Cooling
8%
Volume
8%
Oscillation
7%
Electromagnetic Wave
7%
Geometry
7%
Photonics
7%
Ion
6%
Vacuum
6%
Radiation Sources
6%
Ratios
6%
Earth and Planetary Sciences
Simulation
15%
Backward Wave
12%
Microwave
11%
Experiment
11%
Gyroscope
10%
Electron
9%
Radiation
7%
Electron Beam
6%
Superhigh Frequency
6%
Corrugated Waveguide
6%
Emission
5%
Investigation
5%
Efficiency
5%
Engineering
Waveguide
16%
Experiments
13%
W-Band
12%
Microwave
11%
Simulation
9%
Interaction Region
7%
Bandwidth
6%
Measurement
6%
Amplifier
5%
Harmonics
5%