A high-power proton linac (linear accelerator) is being proposed for t
he next generation tritium source for accelerator production of tritiu
m (APT), The proposed proton linac requires a substantial continuous w
ave (CW) RF system, This paper presents an overview of accelerator-bas
ed tritium production and the details of the CW RF system design, Base
d on the current tritium production requirement, the proposed accelera
tor will require in excess of 200 MW of installed CW RF power, The ava
ilability requirements for the RF system are quite high and an efficie
nt low-cost approach to providing redundancy will be discussed, Also p
resented are the baseline choices for the RF sources as well as our te
chnology development goals and how they impact the RF system design.