INTERNALLY COOLED LINEAR ACCELERATOR AND DRIFT TUBES

摘要

A drift tube linear accelerator incorporating an improved drift tube design, wherein the DTL comprises a resonance chamber maintaining a vacuum and having an inlet port and an exit port, an RF field source producing an oscillating radio frequency field within the chamber, and a plurality of substantially cylindrical drift tubes comprising a hollow body having a low energy end and a high energy end and housing a magnet, a low energy end cap attached to the low energy end of the hollow body and a high energy end cap attached to the high energy end of the hollow body, and a stem extending from said hollow body to an inner surface of the resonance chamber. During operation of the drift tube linear accelerator the drift tubes are cooled by a cooling fluid traveling from a cooling fluid reservoir through an inlet passage in the stem to a disbursing channel in the hollow body, through the disbursing channel to a first annular cooling channel, through the first cooling channel to a collecting channel, through the collecting channel to an annular return channel, through the return channel to an outlet passage in the stem, and through the outlet passage to the cooling fluid reservoir.