Status of the first stage of linear induction accelerator SILUND-21

In the present paper we report on status of the project of SILUND-21 LIA which is under development at JINR. SILUND-21 will provide electron beams with the energy up to 10 MeV, peak current /spl sim/1 kA and pulse duration 50-70 ns. SILUND-21 will serve as a base of experimental facility to study microwave electronics, FEL technique and two-beam acceleration. It is assumed also to perform experiments to adopt the FEL bunching technique for generation of the CLIC driving beam.