Study of impedance match of pseudospark e-beam source of free electron laser

This paper reports and analyses the problem about the impedance match of pseudospark e-beam source of free electron laser and the experiment results on compact device without pulse transmission line. The e-beam of 4.3 kA current under 255 kV discharge voltage is obtained and the impedance curve of the pseudospark discharge chamber filled with nitrogen at 15 Pa during the pseudospark discharge is given.