strahlungsintensität
Strahlungsintensität, often translated as radiation intensity, is a fundamental concept in physics and engineering that quantifies the power radiated from a source per unit solid angle. It describes how concentrated the radiation is in a particular direction. The unit for strahlungsintensität is Watts per steradian (W/sr).
This quantity is crucial for understanding and characterizing various forms of radiation, including electromagnetic waves like
Strahlungsintensität is distinct from radiant flux (total power emitted), radiant exitance (power emitted per unit area),