Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Theory of emission by relativistic particles in amorphous and crystalline media

Journal Article · · Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:5871281
The influence of multiple scattering and of polarization of the medium on the intensity of coherent emission of low-frequency radiation by relativistic particles in a crystal is investigated. It is shown that the method of functional integration can be used to describe the emission of radiation by high-energy particles in matter. The method is used to reproduce the results of Migdal and Ter-Mikaelyan on the effect of multiple scattering and of polarization of the medium on the emission of bremsstrahlung by fast charged particles in an amorphous medium at low frequencies, and a formula is obtained for the effect of multiple scattering by chains of atoms and of polarization of the medium on the intensity of coherent emission by ultrarelativistic particles in a crystal. It is shown that, when particles propagate in a crystal, multiple scattering may have a significant effect on the way they emit at much lower particle energies, and in a much greater range of emission frequencies, than in an amorphous medium. This opens up new possibilities for studying the Landau-Pomeranchuk effect on many existing accelerators.
Research Organization:
Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Kharkov
OSTI ID:
5871281
Journal Information:
Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 62:3; ISSN SPHJA
Country of Publication:
United States
Language:
English