Speaker
Mattia Checchin
(FNAL - IIT)
Description
Nitrogen doping was demonstrated to be a feasible superconducting radio frequency technology in order to achieve high quality factors. The possibility of building accelerating machines operating in continuous wave or high duty factor for medium field applications, such as LCLS-II, are therefore now affordable. Still, cavities treated in such a way are usually limited to lower gradients excluding high accelerating field machines form their range of application. Studies performed till now suggest that the origin of such gradient limitations is magnetic, meaning that the field of first penetration of magnetic flux in the superconductor is somehow lowered from the doping treatment. The work presented is addressed to the understanding of the dependence of the maximum accelerating field with the doping concentration, with the final scope of tweaking the state-of-the-art treatment in order to increase the quench field.
Primary author
Mattia Checchin
(FNAL - IIT)
Co-authors
Alexander Romanenko
(Fermilab)
Anna Grassellino
Dr
Dmitri Sergatskov
(FNAL)
Martina Martinello
(FNAL - IIT)
Dr
Melnychuk Oleksandr
(FNAL)
Dr
Sam Posen
(FNAL)
