Excitation of resonators by electron beams
  In this paper the main consequences of the vector theory of excitation of resonators by particle beams are presented. Some features of excitation of broadband radiation in longitudinal modes of the enclosed and open resonators are discussed. 
Yukio Shibata, Satoshi Sasaki, Kimihiro Ishi, Mikihiko Ikezawa   (Research Institute for Scientific Measurements, Tohoku Uni...