Development of a high power klystron for the spallation neutron source

Summary form only given, as follows. The Spallation Neutron Source (SNS) provides an intense beam of neutrons for scattering experiments. The SNS is comprised of an ion source, a 1 GeV H/sup -/ linear accelerator, an accumulator ring, a target for neutron production, and an area for the scattering experiments. The linear accelerator is driven by 52 klystrons operating at 805 MHz, and 3 klystrons operating at 402.5 MHz. A prototype of the 805 MHz klystron is being developed at Litton and is the subject of this paper. The klystron will produce 2.5 MW of peak power at 10% duty. The pulse width is 1.7 msec and the efficiency is specified at a minimum of 55%.