Zobrazeno 1 - 10
of 21
pro vyhledávání: '"T. A. Tumareva"'
Autor:
A. N. Stepanova, T. A. Tumareva, E. P. Taradaev, M. E. Givargizov, V. E. Sezonov, A. A. Rukavitsyna, G. G. Sominskii, S. P. Taradaev
Publikováno v:
Radiophysics and Quantum Electronics. 62:539-546
We present the results of the development and study of the field emitters for high-voltage electronic devices operating in technical vacuum. The main attention is paid to estimating the possibilities of using distributed field emitters under the cond
Autor:
E. P. Taradaev, M. E. Givargizov, A. A. Rukavitsyna, T. A. Tumareva, A. N. Stepanova, G. G. Sominskii
Publikováno v:
Technical Physics. 64:270-273
A technology of creation of annular silicon field emitters with bilayer metal–fullerene coating has been developed and their performance has been studied. It has been shown that annular emitters with a surface area of about 0.3 cm2 provide a curren
Autor:
M. E. Givargizov, T. A. Tumareva, A.A. Rukavitsina, E. P. Taradaev, A. N. Stepanova, G. G. Sominskii
Publikováno v:
2019 International Vacuum Electronics Conference (IVEC).
This report discusses recent advances in the development and investigation of possibilities to use electron-optical system (EOS) with multi-tip annular field emitters for formation of electron beams in terahertz and subterahertz spectroscopic gyrotro
Publikováno v:
Infrared Physics & Technology. 78:185-189
We propose a new version of the electron-optical system for a spectroscopic gyrotron, where the primary electron flux appears due to the field emission. Requirements to the choice of the design of a multi-tip cathode are substantiated. The shape of t
Autor:
G. G. Sominski, S. Yu. Kornishin, A. N. Stepanova, T. A. Tumareva, V. E. Sezonov, Yu. M. Zadiranov, E. P. Taradaev
Publikováno v:
Radiophysics and Quantum Electronics. 58:511-519
We describe multitip field emitters with protective coatings, which were developed in Peter the Great St. Petersburg Polytechnic University. The coatings ensure long-term operation of the emitters under high currents and technical vacuum. Innovative
Publikováno v:
Technical Physics. 60:133-136
We investigate the operation of multitip silicon field emitters with new-type bilayer metal—fullerene protective coatings in technical vacuum. The experiments indicate that such cathodes ensures emission current densities averaged over the cathode
Publikováno v:
2017 Eighteenth International Vacuum Electronics Conference (IVEC).
We propose a new concept of the electron-optical system for a gyrotron for spectroscopy application, where the primary electron beam appears due to the field emission. Requirements to the choice of the design of a multi-pin cathode are substantiated.
Publikováno v:
EPJ Web of Conferences, Vol 149, p 04036 (2017)
Publikováno v:
Technical Physics. 60:1079-1081
We investigate multitip field emitters prepared by electroerosion treatment of the surface of molybdenum samples. Their characteristics are determined for operation with a protecting activated fullerene coating. Our experiments indicate that such cat
Autor:
G. G. Sominskii, T. A. Tumareva
Publikováno v:
Technical Physics. 58:1048-1051
The operation of tungsten tip field emitters coated by activated fullerenes in technical vacuum is studied. Ways of emitter training to provide the self-reproducibility of the coatings and their long service life under intense ion bombardment in wide