Elektronmõjul

Elektronmõjul is an Estonian term used in physics to denote phenomena that arise when electrons interact with matter or are present in a system. The phrase literally means "under electron influence" or "by electron impact." It is used as a broad descriptor for effects caused by electron irradiation or electron currents.

Scope and mechanisms: Interactions encompassed by elektronmõjul include elastic and inelastic scattering, excitation and ionization of atoms or molecules, and emission of secondary electrons. In solids, electron irradiation can modify electronic structure, create defects, or induce charging effects. In vacuum systems and devices, electron flux can influence surface chemistry and material properties.

Applications: Electron microscopy (scanning and transmission) relies on electron beams to create images and spectra via electron–matter interactions, while electron-induced desorption or sputtering is relevant in surface analysis and nanofabrication. In radiation physics, electron impact is a primary ionization mechanism in detectors and mass spectrometers.

Terminology and usage: The term is primarily found in Estonian scientific literature. It is not a single phenomenon but a category that encompasses various electron-driven processes across disciplines.

See also: Related topics include electron interaction, electron beam, secondary electron emission, and electron microscopy.