Abstract: The advantages of linear induction accelerators (LIA) include high acceleration rate (1 Mev/m), high accelerated beam current values (up to 10 kA), capability of operating in a rep- rate (a few kilohertz) regime, high (up to 90%) efficiency of conversion of the power supply energy to the electron beam energy. The Tomsk Institute of Nuclear Physics (INT) has recently implemented the supply system and a few original LIA's. LIA's are meant to energize relativistic microwave oscillators with pulse power in the beam of 2-5 GW for a pulse duration of 50-100 ns. This paper presents the results of experimental investigations of two LIA's operating simultaneously. It has been done to realize coherent operation of two relativistic magnetrons. Locking of the accelerators is performed by the common start switch gap. As a load for each accelerator use is made of a relativistic magnetron with an intrinsic system of magnetic fields created by two coils forming Helmholtz couple. For a charging voltage of the forming lines of each accelerator of 50 kV there form the pulses on the cathodes of 400 kV with a pulse duration of 80 ns and a current up to 5 kA. The switch jitter is less than 5 ns. !5
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