A Superconducting Nb3Sn Coated Multicell Accelerating Cavity

@article{Peiniger1985ASN,
  title={A Superconducting Nb3Sn Coated Multicell Accelerating Cavity},
  author={M. Peiniger and Helmut Piel},
  journal={IEEE Transactions on Nuclear Science},
  year={1985},
  volume={32},
  pages={3610-3612}
}
We report on the first results, obtained with a five cell Nb3Sn coated accelerating structure of 3 GHz. A uniform layer of Nb3Sn was formed by processing a niobium structure in a tin atmosphere at 1170°C. At 4.2 K a resonator Q of 7·109 was measured. This corresponds to a residual surface resistance of 27 n¿ which is the lowest ever achieved with a Nb3Sn cavity in the GHz range. The rf losses of this resonator are by a factor of 55 lower than those of an equivalent niobium cavity at 4.2 K. The… 

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References

SHOWING 1-4 OF 4 REFERENCES

Residual microwave surface resistance of superconducting lead

An extensive experimental investigation aimed at minimizing the residual microwave surface resistance of superconducting lead is described. X‐band cavities were made by electroplating lead on copper

Measurements of the low-temperature rf surface resistance of lead at frequencies from 136 to 472 MHz

A helically loaded, lead-plated cavity has been used to measure the superconducting rf surface resistance of lead at low field levels at frequencies from 136 to 472 MHz and temperatures from 1.5 to

Experimental work on the niobium-tin constitution diagram and related studies

Three intermetallic phases Nb3Sn, Nb6Sn5 and NbSn2 are formed in the niobium-tin system. Nb6Sn5 and NbSn2 appear to be stoichiometric with narrow homogeneity range, but Nb3Sn can exist over a wide