The conventional, 10 -8 ’ Torr-range, ion-pumped vacuum system of the SLAC 3.2~km linear accelerator is briefly described, along with typical performance data. Since polarized electron sources are of increasing importance to high-energy research, the necessary physical environments for such sources is given, and differential pumping and/or isolation systems capable of maintaining those conditio...

Zhang et al ([2]) recently propose another approach to the face algorithm [1]. This note gives a modification of the result.

This talk treats of three main topics, namely: I) the status of the Superconducting Linac ALPI; II) the strategies put into action in order to push up the resonator performances; III) the design and prototype work directed to the construction of a new positive ion injector for our Linac. Since the beginning of 1995 several beams have been successfully accelerated with the ALPI Linac injected by...

We analyze two designs for W-Band free electron lasers for application as laboratory instruments in the study of millimeter wave accelerators at high gradient. The first design is based on the linear induction accelerator LELIA (CEA/CESTA, France), employs a 1kA, 80-ns electron pulse, and corresponds to a helical TE11 200MW W-Band amplifier design. We analyze also a W-Band planar ubitron design...