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Measuring of ultrahigh unloaded Q factor using excitation of a superconducting cavity by the electron beam

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Abstract

A precision method for measuring of ultrahigh unloaded Q factors of superconducting cavities is proposed which is based on the excitation of oscillation in the cavity by electron beam. In this measuring, the cavity is not connected to any external microwave circuit; its unloaded Q factor is determined from the loss of electron-beam power, which can be measured with high accuracy.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, Moscow oblast, Russia

    N. S. Azaryan, Yu. A. Budagov, V. V. Glagolev, D. L. Demin, L. M. Onishchenko, G. V. Trubnikov & G. D. Shirkov

  2. National Scientific and Educational Center of Particle and High Energy Physics, Belarusian State University, Minsk, Republic of Belarus

    M. A. Baturitsky & N. M. Shumeiko

  3. Belarusian State University of Information Technology and Radio Electronics, Minsk, Republic of Belarus

    S. V. Kolosov, A. A. Kurayev, T. L. Popkova, A. O. Rak & A. K. Sinitsyn

Authors
  1. N. S. Azaryan
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  2. M. A. Baturitsky
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  3. Yu. A. Budagov
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  4. V. V. Glagolev
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  5. D. L. Demin
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  6. S. V. Kolosov
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  7. A. A. Kurayev
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  8. L. M. Onishchenko
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  9. T. L. Popkova
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  10. A. O. Rak
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  11. A. K. Sinitsyn
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  12. G. V. Trubnikov
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  13. G. D. Shirkov
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  14. N. M. Shumeiko
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Additional information

Original Russian Text © N.S. Azaryan, M.A. Baturitsky, Yu.A. Budagov, V.V. Glagolev, D.L. Demin, S.V. Kolosov, A.A. Kurayev, L.M. Onishchenko, T.L. Popkova, A.O. Rak, A.K. Sinitsyn, G.V. Trubnikov, G.D. Shirkov, N.M. Shumeiko, 2014, published in Pis’ma v Zhurnal Fizika Elementarnykh Chastits i Atomnogo Yadra, 2014, No. 1(185), pp. 119–128.

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Azaryan, N.S., Baturitsky, M.A., Budagov, Y.A. et al. Measuring of ultrahigh unloaded Q factor using excitation of a superconducting cavity by the electron beam. Phys. Part. Nuclei Lett. 10, 788–794 (2013). https://doi.org/10.1134/S1547477114010063

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  • DOI: https://doi.org/10.1134/S1547477114010063

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