| 释义 |
DictionarySeeCompton effectCompton scattering
Compton scattering (komp -tŏn) (Compton effect) An interaction between a photon of electromagnetic radiation and a charged particle, such as an electron, in which some of the photon's energy is given to the particle. The photon is therefore reradiated at a lower frequency (i.e. with a lower energy) and the particle's energy is increased. In inverse Compton emission the reverse process takes place: photons of low frequency are scattered by moving charged particles and reradiated at a higher frequency.Compton scattering[¦käm·tən ¦skad·ə·riŋ] (quantum mechanics) The elastic scattering of photons by electrons. Also known as Compton process; gamma-ray scattering. Compton scattering
Comp·ton ef·fect (komp'tŏn), in the absorption of electromagnetic radiation of medium energy, a decrease in energy of the bombarding photon with the dislodgement of an orbital electron, usually from an outer shell. Synonym(s): Compton scatteringComp·ton ef·fect , Compton scattering (kom'tŏn e-fekt', kom'tŏn skat'ĕr-ing) Change in wavelength of x-rays or gamma rays due to interaction of electron orbiting nucleus and incidental photon, resulting in scattered photons of lower energy and recoil electrons. Compton scattering (komp'ton) [Arthur H. Compton, U.S. physicist and Nobel laureate, 1892–1962] An interaction between x-rays and matter in which the incoming photon ejects a loosely bound outer-shell electron. The resulting change in the direction of the x-ray photon causes scatter, increasing the dose and degrading the radiographic image. Most interactions between x-rays and matter are of this type, esp. at high energies. See: scatterCompton, Arthur H., U.S. physicist, 1892-1962, winner of the 1927 Nobel Prize for his work in physics. Compton effect - in electromagnetic radiations of medium energy, a decrease in energy of the bombarding photon with the dislodgement of an orbital electron, usually from an outer shell. Synonym(s): Compton scatteringCompton scattering - Synonym(s): Compton effect |