Physics & Astronomy
accelerators
88%
traveling wave tubes
87%
amplifiers
80%
electrons
73%
particle acceleration
67%
radiation
59%
wakes
58%
stimulated emission
52%
electron beams
50%
cathodes
46%
lasers
46%
superhigh frequencies
39%
space charge
35%
output
33%
microwaves
32%
energy
30%
waveguides
30%
emittance
27%
microwave amplifiers
26%
interactions
26%
cavities
26%
diodes
25%
gradients
25%
phase velocity
23%
traveling wave amplifiers
20%
sidebands
20%
electron clouds
18%
geometry
18%
grooves
17%
electromagnetic radiation
17%
anodes
16%
current density
16%
power amplifiers
16%
electromagnetism
15%
tapering
15%
traps
15%
saturation
14%
harmonics
14%
electric potential
14%
electron sources
13%
scaling laws
13%
magnetic fields
13%
gratings
13%
vacuum
13%
oscillators
13%
electrostatics
12%
configurations
12%
pulses
12%
ceramics
12%
wavelengths
12%
Engineering & Materials Science
Electrons
100%
Electron beams
68%
Particle accelerators
56%
Traveling wave tubes
46%
Radiation
39%
Stimulated emission
34%
Microwaves
31%
Periodic structures
30%
Ferroelectric materials
29%
Slow wave structures
27%
Cathodes
24%
Electron emission
23%
Waveguides
23%
Lasers
22%
Wavelength
18%
Phase velocity
16%
Current density
16%
Sintering
15%
Free electron lasers
15%
Nonlinear optics
15%
Colliding beam accelerators
14%
Electric fields
14%
Circular waveguides
13%
Kinetic energy
13%
Electron guns
12%
Lead zirconate titanate
12%
Amplification
12%
Quantum theory
11%
Cavity resonators
11%
Wave functions
11%
Electron sources
11%
Electric space charge
10%
Ferroelectric ceramics
10%
Electromagnetic waves
10%
Magnetic fields
10%
Experiments
10%
Vacuum
9%
Geometry
9%
Angular momentum
9%
Electric potential
9%
Energy conversion
8%
Modulators
8%
Storage rings
8%
Acoustic impedance
7%
Compton scattering
7%
Field emission
7%
Scattering
7%
Microwave generation
7%
Pulse transformers
7%
Zirconia
7%