DocumentCode
961702
Title
Measurement on a Nb3 Sn structure for linear accelerator application
Author
Arnolds, G. ; Proch, D.
Author_Institution
IEEE TMAG
Volume
13
Issue
1
fYear
1977
fDate
1/1/1977 12:00:00 AM
Firstpage
500
Lastpage
503
Abstract
A three cell 8 GHz accelerator structure fabricated from bulk niobium, was processed in a tin vapor atmosphere at 1050 °C. The structure was operated in a π/2 standing wave mode. At 4.2 K a surface resistance of 1.1 μΩ and an accelerating field of 2.7 MV/m was obtained. This corresponds to peak surface fields of E = 10 MV/m and B = 20 mT. The fields were limited by fast magnetic thermal breakdowns. The temperature dependence of the rf surface resistance yielded a transition temperature of Tc = (18.0 ± 0.2)K and an energy gap of 2Δ (0) = (4.6 ± 0.2)kTc .
Keywords
Accelerator cavities, superconducting; Superconducting linear accelerators; Acceleration; Electrical resistance measurement; Loaded waveguides; Niobium; Niobium-tin; Resonant frequency; Surface resistance; Temperature dependence; Thermodynamics; Tin;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1977.1059387
Filename
1059387
Link To Document