High-current injector for the proposed SLAC linear collider

A new, high-current injector was designed to yield the 7.5 x 10 to the 10th power e(-) per S-band bunch necessary for the proposed linear collider. The injector consists of two prebunchers at the 16th subharmonic, a 0.75 c traveling wave buncher, and a three-meter velocity of light traveling wave structure. The e(-) beam is confined by a solonoidal magnetic field in the buncher and capture regions. A computer simulation similar to that used by Mavrogenes et al., was possible to achieve approximately 1 x 10 to the 11th power e(-) in 16(0) of S-band from a 15 amp gun pulse of 1.5 nsec duration.