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A split high‐Q superconducting cavity
We describe the construction of a 35‐GHz split high‐Q superconducting cavity operating in the TM010 mode. The cavity is tuned by varying the spacing between the halves. Radiation loss from this gap is suppressed by a choke groove. Q=4×107 has been achieved in both lead‐plated copper and niobium cavi...
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Published in: | Review of scientific instruments 1990-07, Vol.61 (7), p.1940-1945 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | We describe the construction of a 35‐GHz split high‐Q superconducting cavity operating in the TM010 mode. The cavity is tuned by varying the spacing between the halves. Radiation loss from this gap is suppressed by a choke groove. Q=4×107 has been achieved in both lead‐plated copper and niobium cavities at a temperature of 2 K. Q>107 can be maintained over a 300‐MHz tuning range, corresponding to a gap between the halves of 85 μm. |
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ISSN: | 0034-6748 1089-7623 |
DOI: | 10.1063/1.1141119 |