5 papers
Decommissioning and Post-Irradiation Examination of the LHC Beam Dumps
N. Solieri, A. Lund, A. -P. Bernardes +21
The LHC beam dumps are responsible for the safe absorption of the Large Hadron Collider (LHC) particle beams. In 2018, the two 6.4-tonne beam dumps that had been in operation since…
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…
Effect of surface orientation on blistering of copper under high fluence keV hydrogen ion irradiation
A. Lopez-Cazalilla, C. Serafim, J. Kimari +6
Copper and hydrogen are among the most common elements that are widely used in industrial and fundamental research applications. Copper surfaces are often exposed to hydrogen in th…
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…