C-band linac RF-system for e/sup +/e/sup -/ linear collider

A C-band (5712 MHz) RF system for a 500 GeV to 1 TeV e/sup +/e/sup -/ linear collider is proposed. An accelerating gradient of 30 MV/m (including beam loading) is generated by 50 MW C-band klystrons in combination with an RF-compression system. The klystron and its power supply can be fabricated by conventional technology. The straightness tolerance for the accelerating structures is 30 /spl mu/m, which is also achievable with conventional fabrication processes. No critical new technology is required in a C-band system. Therefore a reliable system can be constructed at low cost with the minimum of R/D studies.