Factory test results of the L-3 L6200 multi-beam IOT for the European spallation source

L-3 Electron Devices has successfully completed factory testing of the L6200 1.2 MW Multi-Beam Inductive Output Tube (MBIOT) for the European Spallation Source. The ten-beam, permanent magnet-focused device meets the maximum 1.2 MW output power specification at 704.42 MHz with a DC-to-RF efficiency of 68.4%; efficiency is maintained above 60% down to 650 kW. The gain at 1.2 MW exceeds 21 dB. No oscillations were detected at any point during operation. The MBIOT is currently being prepared for shipment, after which it will undergo long-duration life testing.