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A. N. Kuftin
Researcher at Russian Academy of Sciences
Publications - 98
Citations - 1395
A. N. Kuftin is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Gyrotron & Beam (structure). The author has an hindex of 18, co-authored 93 publications receiving 1239 citations.
Papers
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Journal ArticleDOI
110 GHz gyrotron with a built-in high-efficiency converter
Gregory G. Denisov,A. N. Kuftin,V. I. Malygin,N. P. Venediktov,D. V. Vinogradov,V. E. Zapevalov +5 more
TL;DR: In this article, a 110 GHz 1 MW pulse gyrotron with a built-in electrodynamic duct consisting of a new type quasi-optical converter and three matching mirrors transforms operating mode TE15,4 into a gaussian beam going through the output window.
Journal ArticleDOI
Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media
M. Yu. Glyavin,A. V. Chirkov,Gregory G. Denisov,Andrey P. Fokin,V. V. Kholoptsev,A. N. Kuftin,A. G. Luchinin,G. Yu. Golubyatnikov,V. I. Malygin,Mikhail V. Morozkin,Vladimir N. Manuilov,M. D. Proyavin,Anton S. Sedov,E. V. Sokolov,E. M. Tai,Alexander I. Tsvetkov,V. E. Zapevalov +16 more
TL;DR: A 263 GHz continuous-wave gyrotron developed at the IAP RAS for future applications as a microwave power source in Dynamic Nuclear Polarization / Nuclear magnetic resonance (DNP/NMR) spectrometers and the possibility of frequency tuning by variation of the coolant temperature was demonstrated.
Journal ArticleDOI
A high harmonic gyrotron with an axis-encircling electron beam and a permanent magnet
Toshitaka Idehara,Isamu Ogawa,Seitaro Mitsudo,Y. Iwata,S. Watanabe,Y. Itakura,K. Ohashi,H. Kobayashi,T. Yokoyama,V. E. Zapevalov,Mikhail Yu. Glyavin,A. N. Kuftin,O. V. Malygin,Svilen Sabchevski +13 more
TL;DR: In this paper, a gyrotron with an axis-encircling electron beam is capable of high-frequency operation, because the high-beam efficiency is kept even at high harmonics of the electron cyclotron frequency.
Journal ArticleDOI
Mirror synthesis for gyrotron quasi-optical mode converters
A.A. Bogdashov,A. V. Chirkov,Gregory G. Denisov,D. V. Vinogradov,A. N. Kuftin,V. I. Malygin,V. E. Zapevalov +6 more
TL;DR: In this article, a new approach for the design of a quasi-optical gyrotron mode converter is proposed based on the synthesis of quasioptical mirrors using diffraction (Helmholtz-Kirchhoff) integrals.