G
G. G. Denisov
Researcher at Russian Academy of Sciences
Publications - 323
Citations - 3082
G. G. Denisov is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Gyrotron & Microwave. The author has an hindex of 24, co-authored 323 publications receiving 2699 citations. Previous affiliations of G. G. Denisov include Novosibirsk State University & Saratov State University.
Papers
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Proceedings ArticleDOI
Compression of frequency-swept microwave pulses using a helically corrugated waveguide
Adrian W. Cross,P. MacInnes,Sergey V. Samsonov,Alan D. R. Phelps,Graeme Burt,Kevin Ronald,V. L. Bratman,G. G. Denisov,A. R. Young,Colin G. Whyte,Wenlong He,Ivan Konoplev,H. Yin +12 more
TL;DR: In this article, a 2.08 meter long copper helical waveguide was used to compress a 67 ns, 5.7 kW frequency-swept pulse from a high power TWT, driven by a swept solid-state source, to 2.8 ns 68 kW pulse containing 50% of the energy of the input pulse.
Proceedings ArticleDOI
Generation of Train of Ultrashort Ka-band Pulses by Helical Gyro-TWTs with Nonlinear Cyclotron Resonance Absorber in the Feedback Loop
Naum S. Ginzburg,G. G. Denisov,M. N. Vilkov,A. S. Sergeev,Sergey V. Samsonov,Irina V. Zotova +5 more
TL;DR: In this article, a periodic train of powerful ultrashort microwave pulses can be generated in an electron oscillator consisting of helically corrugated gyrotron travelling wave tube (gyro-Twt) and saturable absorber based on cyclotron resonance interaction of radiation with initially rectilinear electron beam.
Proceedings ArticleDOI
X-band pulse compression using a five-fold helically corrugated waveguide
Lei Zhang,Adrian W. Cross,Wenlong He,Craig Robertson,A. R. Young,Colin G. Whyte,Kevin Ronald,Alan D. R. Phelps,Sergey V. Samsonov,Sergey V. Mishakin,G. G. Denisov,V. L. Bratman,N. G. Kolganov +12 more
TL;DR: In this article, a 5-fold helically corrugated waveguide (HCW) with both axial and azimuthal periodicity was used for microwave pulse compression.
Proceedings ArticleDOI
Development of gyro-devices at IAP/GYCOM
TL;DR: Research activity on development of various gyro-devices at the Institute of Applied Physics of Russian Academy of Sciences (IAP RAS) and at the industrial company GYCOM Ltd is presented in this article.
Proceedings ArticleDOI
Progress with the new multi-frequency ECRH system for ASDEX upgrade
D. Wagner,G. Grunwald,F. Leuterer,F. Monaco,M. Münich,H. Schultz,J. Stober,H. Zohm,Th. Franke,Manfred Thumm,R. Heidinger,Andreas Meier,G. Gantenbein,J. Flamm,W. Kasparek,Carsten Lechte,Aleksandr Grigorievich Litvak,A. Cirkov,G. G. Denisov,L.G. Popov,V.O. Nichiporenko,V.E. Myasnikov,E.M. Tai,E.A. Solyanova,S. A. Malygin +24 more
TL;DR: In this paper, a multi-frequency ECRH system is currently under construction at the ASDEX Upgrade tokamak experiment, which employs depressed collector gyrotrons, step-tunable in the range 105-140 GHz, with a maximum output power of 1 MW and a pulse length of 10 s.