5 papers · 1 filter
Plasma treated metals after H- irradiation and its effect on vacuum breakdown behaviour
C. Serafim, S. Calatroni, F. Djurabekova +9
Vacuum breakdown in accelerator structures is a critical challenge that occurs under high electric fields. In environments subjected to hydrogen ion irradiation or high beam losses…
Effects of H low beam irradiation and high field pulsing tests in different metals
C. Serafim, S. Calatroni, F. Djurabekov +7
This work studies the suitability of a set of different materials for manufacturing of more efficient and durable Radio-Frequency Quadrupole (RFQ) structures compared to that curre…
Influence of nanoparticulates and microgrooves on the secondary electron yield and electrical resistance of laser-treated copper surfaces
P. KrkotiÄ, T. Madarász, C. Serafim +4
Laser surface structuring has proven to be an effective technique for achieving a copper surface with secondary electron yield (SEY) values close to or below unity. However, the at…
Initial high electric field -- vacuum arc breakdown test results for additively manufactured pure copper electrodes
A. Ratkus, T. Torims, G. Pikurs +6
Additive Manufacturing (AM) is already well-established for various manufacturing applications, providing many benefits such as design freedom, novel and complex cooling designs fo…
Electron Beam Characterization of REBCO-Coated Conductors at Cryogenic Conditions
Michal Haubner, Patrick Krkotic, Catarina Serafim +7
Particle accelerators with superconducting magnets operating at cryogenic temperatures use a beam screen (BS) liner that extracts heat generated by the circulating bunched charge p…