| 释义 |
DictionarySeeradiationcharacteristic radiation
characteristic radiation[‚kar·ik·tə′ris·tik ‚rād·ē′ā·shən] (atomic physics) Radiation originating in an atom following removal of an electron, whose wavelength depends only on the element concerned and the energy levels involved. characteristic radiation
char·ac·ter·is·tic ra·di·a·tionmonochromatic radiation that is produced when an electron is ejected from an atom and another takes its place by jumping from another shell; the energy of the emitted photon is the difference between that of the two shell positions. See: photoelectric effect. Synonym(s): characteristic emissionchar·ac·ter·is·tic ra·di·a·tion (kar'ăk-tĕr-is'tik rā'dē-ā'shŭn) When an incoming electron from the cathode stream that has enough energy to overcome the binding energy of electrons in the inner shells of the target material knocks the electron out of its shell, the outer electrons fall into the inner shell, giving up energy in the form of x-radiation. Produced at levels above 69.5 kV. This process leaves the atom ionized. char·ac·ter·is·tic ra·di·a·tion (kar'ăk-tĕr-is'tik rā'dē-ā'shŭn) When an incoming electron from the cathode stream that has enough energy to overcome the binding energy of electrons in the inner shells of the target material knocks the electron out of its shell, the outer electrons fall into the inner shell, giving up energy in the form of x-radiation. ThesaurusSeecharacteristic |