@inproceedings{,
    author = {Mayerhofer, Michael; Mitteneder, Johannes; Wittig, Cedric; Prestes, Isabe; Jägle, Eric A.; Dollinger, Günther},
    title = {First High Quality Drift Tube Linac Cavity Additively Manufactured from pure Copper},
    editor = {},
    booktitle = {14th International Particle Accelerator Conference, Venice, Italy},
    series = {},
    journal = {},
    address = {},
    publisher = {JACoW Publishing},
    edition = {},
    year = {2023},
    isbn = {978-3-95450-231-8},
    volume = {},
    number =  {},
    pages = {4967-4970},
    url = {},
    doi = {},
    keywords = {Additive manufacturing ; Cavity ; Linac ; 3D printing ; Side Coupled Cavity Linac ; pure copper ; LPBF ; SLM ; Selective Laser Melting},
    abstract = {Recently presented RF cavity prototypes printed entirely from pure copper illustrate the potential of additive manufacturing (AM), and particularly laser powder bed fusion (L-PBF), for accelerator technology. Thereby, the design
freedom of L-PBF is only limited by overhanging geometries, which have to be printed with supporting structures to ensure sufficient accuracy. However, the subsequent removal of these support structures is a major challenge for cm-sized GHz cavities. Therefore, our approach is to design self-supporting geometries. In this contribution, we present a drift tube cavity geometry as used in e.g. proton therapy linac systems that can be fabricated by L-PBF without support structures. A 5-cell prototype was manufactured from high-purity copper using L-PBF. It is shown that the developed geometry allows a print accuracy sufficient to reach the defined resonance frequency. A chemical, as well as a dynamic electrochemical finishing process, was applied to optimize the prototype’s surface quality. Thus, the CST
simulated 𝑄0 was obtained for the first time with a printed copper cavity.},
    note = {},
    institution = {Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik, LRT 2 - Institut für Angewandte Physik und Messtechnik;LRT 5 - Institut für Werkstoffkunde, Professur: Jägle, Eric A. ; Dollinger, Günther},
    
    
}