| | MHI has supplied various types of superconducting
cavities mainly to KEK in Japan since TRISTAN project
started at 1977. We have a lot of experience in the
development of superconducting cavities for Japanese
projects. And we have the technology to design and
fabricate the superconducting cavities. We can present
some ideas to improve the quality, cost, and delivery time
of the superconducting cavities based on our experience.
We designed and fabricated four STF-Baseline
superconducting cavities with frequency tuners, helium
jackets, according to KEK specifications. To decrease a
cavity deformation occurring due to Lorenz force, rigid
jacket systems including tuner were designed. By
fabricating four cavities, some problems and
improvements in the next step are cleared. Some ideas to
reduce the fabrication cost are proposed in this paper. | |