Abstract

The results of the upgrading of P-48 and P-49 spark-gap switches that allowed us to improve their electric performances are presented. The design and performance data of РИМ 100/35 and РИМ 200/50 gas-filled metal-ceramic spark-gap switches are described. When used in the circuit of the Marx generator of the APCA accelerator operating at a voltage-rise time of 5–6 μs, they ensure a pulsed breakdown voltage of 120 and 150 kV, respectively. In such devices as МИРА, ДИНА, etc., operating at a voltage-rise time of 0.5–1 μs, the breakdown voltage of these spark-gap switches can be increased up to 130 kV (for РИМ 100/35) and 220 kV (for РИМ 200/50). The intrinsic switch time is <0.5 ns. Some practical recommendations for the metal-ceramic spark-gap switch design are provided.

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