Several mechanisms for emission of electromagnetic radiation by relativistic electrons in various media which are of interest for generating intense ultraviolet, x-ray, and $\gamma$ radiation are examined. Theoretical and experimental results on ultraviolet and x-ray Cherenkov radiation, quasi-Cherenkov radiation in artificial periodic structures, radiation from crystals which results from the diffraction of virtual photons, and radiation accompanying channeling are discussed.

RT Journal
T1 Intense electromagnetic radiation from relativistic particles
A1 Bazylev,V.A.
A1 Zhevago,N.K.
PB Physics-Uspekhi
PY 1982
FD 10 Aug, 1982
JF Physics-Uspekhi
JO Phys. Usp.
VO 25
IS 8
SP 565-595
DO 10.1070/PU1982v025n08ABEH004588
LK https://ufn.ru/en/articles/1982/8/b/