Design Of Travelling Wave Tube For Mass Production

As one of the most important accelerators, the electron linac has a promising market prospects. Highly development of medical and industry and gradually significant crisis of national security were seen since 21 century, which make electron linac widely used during all these areas. Disk-load waveguide, the initial part of electron linac, is the thoroughfare where electron beams were transited, bunched and finally boosted. It is necessary to develop a procedure to reduce the cost and production cycle of the disk-load waveguide because that market share in the area of accelerator has become an important metrics of national power.The vast majority of disk-load waveguide were fabricated by welding of the cut parts which were consist of cylindrical and disk or cup-like components. The biggest disadvantage of this procedure are the long production cycle and high cost, which turn out to be a barrier for its mass production with low cost. Study on design of accelerating cavity and fabrication procedure of the components were executed simultaneously to find a high efficiency but low cost way. A trap-cut accelerating cavity was developed after optimization, and its components were chosen to be fabricated by cold extrusion.Feasibility of trap-cut accelerating cavity was discussed in this thesis, and a series of literature research and theory analysis of its fabrication procedure were carried out. The results showed that desirable dimensional accuracy and face surface finish quality were achieved after single forming processing by cold extrusion with efficient lubrication.