100% duty factor electron linac

An electron linac has been designed and specified with the beam characteristics tabulated below. It uses three currently available 200 kW CW klystrons and standing wave 805 MHz cavities of LAMPF design, operating with manageable heat dissipation of 0.5 kW per cavity. Beam energy (max.): 40 MeV (duty factor 50%)⪯30 MeV (duty factor 100%) Mean beam power: 160 KW at 30 MeV CW. Short-pulse mode: 160 KW at 2 × 105 pps, 10 ns. Fast neutron flux 5 × 1014/second. (short-pulsed): Monochromated photon 2 × 108/second (50 KeV resol.) flux: At energies above 30 MeV, in order not to exceed power dissipation constraints, duty factor must be reduced. The continuous beam gives the machine outstanding capacity to service a tagged photon monochromator, and a high intensity, high PRF pulsed source of fast neutrons.