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تسجيل مستخدم جديدDetermination of the magnetic field dependence of the surface resistance of superconductors from cavity tests
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We present a general method to derive the magnetic field dependence of the surface resistance of superconductors from the Q-curves obtained during the cryogenic tests of cavities. The results are applied to coaxial half-wave cavities, TM-like elliptical accelerating cavities, and cavities of more complicated geometries.
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Previous work has demonstrated that the radio frequency surface resistance of niobium resonators is dramatically reduced when nitrogen impurities are dissolved as interstitial in the material. The origin of this effect is attributed to the lowering o
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