Unprecedented quality factors at accelerating gradients up to 45 MVm −1 in niobium superconducting resonators via low temperature nitrogen infusion
Sign Up to like & getrecommendations! Published in 2017 at "Superconductor Science and Technology"
DOI: 10.1088/1361-6668/aa7afe
Abstract: We report the finding of new surface treatments that permits one to manipulate the niobium resonator nitrogen content in the first few nanometers in a controlled way, and the resonator fundamental Mattis–Bardeen surface resistance and… read more here.
Keywords: nitrogen; gradients mvm; infusion; niobium ... See more keywords
First demonstration of a cryocooler conduction cooled superconducting radiofrequency cavity operating at practical cw accelerating gradients
Sign Up to like & getrecommendations! Published in 2020 at "Superconductor Science and Technology"
DOI: 10.1088/1361-6668/ab82f0
Abstract: We demonstrate practical accelerating gradients on a superconducting radiofrequency (SRF) accelerator cavity with cryocooler conduction cooling, a cooling technique that does not involve the complexities of the conventional liquid helium bath. A design is first… read more here.
Keywords: cryocooler; accelerating gradients; superconducting radiofrequency; conduction ... See more keywords
High gradient experiments with X -band cryogenic copper accelerating cavities
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review Accelerators and Beams"
DOI: 10.1103/physrevaccelbeams.21.102002
Abstract: Vacuum radio-frequency (rf) breakdown is one of the major factors that limit operating accelerating gradients in rf particle accelerators. The occurrence of rf breakdowns was shown to be probabilistic, and can be characterized by a… read more here.
Keywords: breakdown rate; copper; accelerating gradients; rate ... See more keywords