Two different origins of the Q-slope problem in superconducting niobium film cavities for a heavy ion accelerator at CERN
Superconducting niobium film cavities deposited on copper substrates (Nb/Cu) have suffered from strong field-dependent surface resistance, often referred to as the Q-slope problem, since their invention. We argue that the Q-slope may not be an intrinsic problem, but rather originates from a combinat...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2019-07-01
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Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.22.073101 |