What type of radiation interaction involves the complete absorption of energy with subsequent emission of electrons?

The photoelectric effect is a key interaction in which photons are completely absorbed by an atom, leading to the ejection of electrons from the material. When a photon interacts with an electron in an atom's inner shell, the energy of the photon is transferred to the electron. If the energy of the photon exceeds the binding energy of the electron, the electron is emitted from the atom, resulting in ionization. This process is crucial in various applications, including medical imaging and radiation therapy, where the absorption of radiation is essential for the desired effect.

This interaction is characterized by its dependence on the energy of the incident photon and the atomic number of the material; higher atomic numbers lead to a higher probability of photoelectric interaction. The emitted electron typically carries away the energy equal to the photon's energy minus the binding energy, demonstrating the complete absorption of the energy.

The other options represent different types of interactions: Compton scattering involves partial energy transfer with the scattered photon still being present, Rayleigh scattering pertains to elastic scattering without energy loss, and Bremstrahlung radiation is the emission of radiation when charged particles are decelerated. Each of these processes does not involve the complete energy absorption necessary to describe the photoelectric effect.