photoemission

noun 0.626

secondary emission

noun 0.609

electron gun

noun 0.593

electric field

noun 0.562

electrical field

noun 0.547

hot cathode

noun 0.540

emission

noun 0.537

free electron

noun 0.536

photoelectron

noun 0.533

energy field

noun 0.530

electron tube

noun 0.529

electroluminescence

noun 0.527

photoelectric effect

noun 0.525

emitter

noun 0.521

electromagnetic field

noun 0.515

electret

noun 0.512

electron volt

noun 0.505

field event

noun 0.500