6 papers · 1 filter
Optimizing Superconducting Nb Film Cavities by Mitigating Medium-Field Q-Slope Through Annealing
B. Abdisatarov, G. Eremeev, H. E. Elsayed-Ali +9
Niobium films are of interest in applications in various superconducting devices, such as superconducting radiofrequency cavities for particle accelerators and superconducting qubi…
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…
Characterising the Surface Resistance of Laser-Treated LHC Beam Screens with the Shielded Pair Method
P. KrkotiÄ, E. Bez, K. Brunner +6
The presence of strong electron clouds in the quadrupole magnetic field regions of the Large Hadron Collider (LHC) leads to considerable heating that poses challenges for the cryog…
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…
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…
Investigation on different materials after pulsed high field conditioning and low-energy H- irradiation
Catarina Serafim, R. Peacock, S. Calatroni +9
During operation, the radio-frequency quadrupole (RFQ) of the LINAC4 at CERN is exposed to high electric fields, which can lead to vacuum breakdown. It is also subject to beam loss…