Realizing an Additively Manufactured Table-Top Cavity for Beam Acceleration

Chuan Zhang (GSI Helmholtz Centre for Heavy Ion Research, Germany; Institute for Applied Physics, Goethe-University Frankfurt, Germany; Helmholtz Research Academy Hesse for FAIR, Germany)

A novel 704.4 MHz H-mode cavity is being built using the metal additive manufacturing technology. Additive manufacturing is not only a new way to build particle accelerators, but also offers more degrees of freedom in designing them. For example, for this table-top cavity, new-style water-cooling channels that are not possible to be realized using conventional manufacturing techniques have been invented to improve the accelerator performance for high power operations. As part of this proof-of-principle study, beam tests of the 3D-printed cavity are also foreseen. To be flexible in choosing beam-testing places, an unconventional beam dynamics concept with asynchronous acceleration has been adopted so that the cavity will a relatively wide range of acceptance for different input beam energies. In this seminar, the progress and the further development plan of the 704.4 MHz cavity project will be presented.