36 citations · 130 across the 15 of their papers we have counts for
4 papers · 1 filter
Effect of substrate temperature on the growth of Nb3Sn film on Nb by multilayer sputtering
Md Nizam Sayeed, Uttar Pudasaini, Charles E. Reece +2
Nb3Sn films were fabricated by multilayer sequential sputtering on Nb at substrate temperatures ranging from room temperature to 250 °C. The multilayers were then annealed inside a…
RF surface resistance tuning of superconducting niobium via thermal diffusion of native oxide
Eric Lechner, Jonathan Angle, Fred Stevie +3
Recently, Nb superconducting radio frequency cavities vacuum heat treated between 300-400 C for a few hours have exhibited very high quality factors (~5x10^10 at 2.0 K). New second…
rf surface impedance of a two-gap superconductor, considering magnesium diboride for accelerator applications
Binping Xiao, C. E. Reece
In this paper, we apply the two-band extension [1] of BCS theory [2] into the Mattis-Bardeen theory [3] to obtain the surface impedance of a two-band superconductor, and apply it t…
A new first-principles calculation of field-dependent RF surface impedance of BCS superconductor and application to SRF cavities
Binping Xiao, Charles E. Reece
There is a need to better understand the intrinsic limit of radiofrequency (RF) surface impedance that determines the performance of superconducting RF cavities in particle acceler…