Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Dmytro Kashyn"'
Publikováno v:
IEEE Transactions on Plasma Science. 39:1680-1683
In the circuits of high-power microwave (HPM) devices, such as HPM sources and/or high-gradient accelerating structures, small quantities of metallic dust may exist. These metallic particles of a micrometer size being located in the region of high RF
Publikováno v:
IEEE Transactions on Plasma Science. 38:1160-1167
Present-day gyrotrons intended for plasma heating and current-drive experiments operate in high-order modes. Therefore, in such gyrotrons, in the process of voltage rise, as a rule, higher frequency parasitic modes are excited prior to the desired mo
Autor:
Sergei F. Lyuksyutov, Dmytro Kashyn, Pavel B. Paramonov, Ewa Rowicka, Ivan Dolog, Tadashi Hirano, Robert Mallik, Michael A. Reagan
Publikováno v:
Current Nanoscience. 4:166-172
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 9, p 092001 (2013)
The thermal and field emission of electrons from protrusions on metal surfaces is a possible limiting factor on the performance and operation of high-gradient room temperature accelerator structures. We present here the results of extensive numerical
Autor:
Mikhail Yu. Glyavin, Dmytro Kashyn, Anatoly Shkvarunets, John C. Rodgers, V.L. Granatstein, G. G. Denisov, Ruifeng Pu, Yu.V. Rodin, A. A. Bogdashov, Gregory S. Nusinovich, A. G. Luchinin, Mikhail V. Morozkin, Carlos Romero-Talamas
Publikováno v:
2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves.
Design and results of experimental tests of a high-power sub-terahertz gyrotron with a pulse solenoid for remote detection of radioactive materials are presented. Operating frequency corresponds to the atmospheric transparency window (0.66–0.67 THz
Autor:
Dmytro Kashyn, Anatoly Shkvarunets, Carlos Romero-Talamas, Gregory S. Nusinovich, Phillip Sprangle, John C. Rodgers, Ruifeng Pu, V.L. Granatstein
Publikováno v:
2012 Abstracts IEEE International Conference on Plasma Science.
Summary form only given. We are studying new concepts for remote detection of concealed radioactive materials.1–3 The research is a balanced effort consisting of theory, simulations and experiments.
Autor:
Thomas M. Antonsen, Gregory S. Nusinovich, Dmytro Kashyn, V.L. Granatstein, John C. Rodgers, Carlos Romero-Talamas, Phillip Sprangle, Ruifeng Pu
Publikováno v:
SPIE Proceedings.
Recently, a new method of remote detection of concealed radioactive materials was proposed. This method is based on focusing high-power short wavelength electromagnetic radiation in a small volume where the wave electric field exceeds the breakdown t
Autor:
Dmytro Kashyn, R. Elton, Mikhail Yu. Glyavin, Gregory S. Nusinovich, Anatoly Shkvarunets, Brian Lenardo, V.L. Granatstein, John C. Rodgers, Carlos Romero-Talamas
Publikováno v:
IVEC 2012.
Tests planned to validate the operation of a 300 kW, 670 GHz gyrotron, presently under construction at the University of Maryland, are presented. Once the gyrotron is operational, the program will focus on investigating the applicability of the gyrot
Publikováno v:
2011 Abstracts IEEE International Conference on Plasma Science.
High-power long-pulse millimeter-wave gyrotrons are used for electron cyclotron resonance plasma heating and current drive in many plasma installations around the world. There are many problems that may hinder the operation of those devices. One of t
Publikováno v:
2010 Abstracts IEEE International Conference on Plasma Science.
Present-day gyrotrons developed for plasma heating and current drive experiments operate in high-order modes. Therefore, as a rule, in such gyrotrons in the process of voltage rise some higher-frequency parasitic modes are excited prior to the desire