optical radar
apparatus
atomic beam apparatus
boiling point apparatus
EPR apparatus
ESR apparatus
radiance
radiancy
blackbody radiation
characteristic radiation
monoenergetic radiation
monochromatic radiation
electromagnetic radiation
gamma radiation
capture gamma radiation
prompt gamma radiation
line radiation
near-infrared radiation
near infrared radiation
photoelectric infrared radiation
internal radiation
hard radiation
coherent radiation
cosmos rays
background radiation
background radiation
external radiation
far-field radiation
N-radiation
annihilation radiation