The LRL (Livermore) 100-MeV Linear Electron Accelerator and Facility

The 10C MeV electron accelerator and facility, at Livermore have been designed for undertaking investigations in neutron physics and nuclear photoreactions. This has required versatility in the performance of the accelerator and in the layout of the beam transport system. The accelerator is a 5-section S-band device with bearm. pulse capability of 5ns, lOA at 1800 pps to 3¿s 650 ma at 300 pps. A tungsten converter after the third section produces a positron beam capable of acceleration to 80 MeV. The accelerator can operate in the transient or steady state modes. The magnets used to steer the high current pulses are achromatic and can pass a momentum spread of ± 15%. Other beam lines are achromatic and can pass a momentum spread of ± 5%.