Measurement of Microwave Parameters of a Superconducting Niobium Cavity

被引：1

作者：

Azaryan N.S. ^{[2
]}

Baturitskii M.A. ^{[3
]}

Budagov Y.A. ^{[2
]}

Demin D.L. ^{[2
]}

Dem′yanov S.E. ^{[4
]}

Karpovich V.A. ^{[1
]}

Kniga V.V. ^{[4
]}

Krivosheev R.M. ^{[1
]}

Lyubetskii N.V. ^{[1
]}

Maksimov S.I. ^{[1
]}

Pobol I.L. ^{[5
]}

Rodionova V.N. ^{[1
]}

Shirkov G.D. ^{[2
]}

Shumeiko N.M. ^{[3
]}

Yurevich S.V. ^{[5
]}

机构：

[1] Institute for Nuclear Problems, Belarusian State University, 11 Bobruiskaya Str, Minsk

[2] Joint Nuclear Research Institute, 6 Joliot-Curie Str, Dubna

[3] National Educational Research Center of Physics of Particles and High Energies, Belarusian State University, 18 Pervomaiskaya Str, Minsk

[4] GO “Material Science and Production Center,” National Academy of Sciences of Belarus, 19 P. Brovka Str, Minsk

[5] GNU “Physical-Technical Institute,” National Academy of Sciences of Belarus, 10 Acad. Kuprevich Str, Minsk

来源：

Journal of Engineering Physics and Thermophysics | 2017年 / 90卷 / 1期

关键词：

amplitude–frequency characteristics; automated measuring complex; high-Q microwave cavity; linear collider; superconductivity;

D O I：

10.1007/s10891-017-1561-6

中图分类号：

学科分类号：

摘要：

This paper describes a method for direct measurement of the amplitude–frequency characteristics and the Q factor of empty superconducting niobium radio frequency Tesla-type cavities. An automated measuring complex that permits recording the superconductivity effect and measuring high Q values has been developed. Measurements have been made of the Q factors of the investigated objects (the first domestic 1.3-GHz niobium cavities) at a level no lower than 0.1·109 (with a maximum value of ~1.2·1010) and a level of relative losses lower than ~130 dB (with a minimum factor of ~139.7 dB) at liquid nitrogen temperature. © 2017, Springer Science+Business Media New York.

引用

页码：242 / 249

页数：7

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