Radiation of Relativistic Charged Particles in a System With One Dimensional Randomness

Radiation of relativistic charged particles in a system of randomly spaced plates is considered in the paper. It is shown that for large number of plates ($N \gg 1$), in the wavelength range $\lambda \ll l\ll L$ (where $l$ is the photon mean free path and $L$ is the system characteristic size) and for angles $|\cos \theta |\gg (\lambda/2\pi l)^{1/3}$, pseudophoton diffusion represents the major mechanism of radiation. Total intensity of radiation is investigated and its strong dependence on the particle energy and plate number is obtained.