Zobrazeno 1 - 10
of 45
pro vyhledávání: '"M.J. Arman"'
Autor:
M.J. Arman
Publikováno v:
IEEE Transactions on Plasma Science. 28:767-771
Recent experimental studies have shown that the presence of plasma in the high-power microwave sources using intense charged beams, when properly introduced, may enhance the efficiency of the source. These findings have been confirmed by numerical si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cffbf6d47c63f757f6371be1a458e869
https://doi.org/10.1109/27.887720
https://doi.org/10.1109/27.887720
Autor:
T. Englert, G. Baca, P. D. Coleman, M.J. Arman, R. W. Lemke, K.J. Hendricks, M.D. Haworth, L. Bowers, Don Shiffler, Thomas A. Spencer
Publikováno v:
IEEE Transactions on Plasma Science. 26:320-325
The Air Force Research Laboratory RKO source has recently demonstrated the ability to convert electron beam power to RF power until the termination of the electron beam pulse, achieving a power of 1.5 GW at an energy of 170 J. These results represent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb434dc2a579466876389cf5cceaddbd
https://doi.org/10.1109/27.700760
https://doi.org/10.1109/27.700760
Autor:
M.J. Arman
Publikováno v:
IEEE Transactions on Plasma Science. 26:693-697
Recent theoretical studies have shown that the presence of plasma in the high-power microwave (HPM) sources, when properly introduced, may enhance the efficiency of the source. These findings have been confirmed by numerical simulations for some HPM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff22dffbf1d145004f147fe057256b15
https://doi.org/10.1109/27.700808
https://doi.org/10.1109/27.700808
Publikováno v:
Physics of Plasmas. 4:4404-4408
A simple circuit model is used to investigate the transit-time oscillator (TTO) driven by a high-current diode. A novel condition for the onset of oscillation is derived in terms of the diode impedance. It is shown that a low impedance is required fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae6173cbbe177e374214363209d08a1c
https://doi.org/10.1063/1.872603
https://doi.org/10.1063/1.872603
Autor:
K. J. Hendricks, P.D. Coleman, Han. S. Uhm, K. Hackett, M.J. Arman, L. Bowers, Raymond W. Lemke, T. A. Spencer
Publikováno v:
Physics of Plasmas. 4:2691-2696
A self-consistent nonlinear theory of current modulation in an electron beam propagating through relativistic klystrons connected to a coaxial waveguide is developed. A theoretical model of the beam-energy increase Δγ near the extraction cavity is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3db2cd3072d7ca82119cc453740ba782
https://doi.org/10.1063/1.872355
https://doi.org/10.1063/1.872355
Publikováno v:
Proceedings of 1994 IEEE 21st International Conference on Plasma Sciences (ICOPS).
The Air Force Phillips Lab. Gyro-BWO experiment is utilizing the RAMBO pulser, with electron beam parameters of: V{sub D} = 300--800 kV; I{sub D} = 1--50 kA; pulselength = 1--3 {mu}s. An annular electron beam of {approximately} 1--3 kA is produced by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6797d3e61ec61dc94d2da74cc47ea5ba
https://doi.org/10.1109/plasma.1994.589063
https://doi.org/10.1109/plasma.1994.589063
Publikováno v:
IEEE Conference Record - Abstracts. 1999 IEEE International Conference on Plasma Science. 26th IEEE International Conference (Cat. No.99CH36297).
Summary form only given, as follows. The relativistic klystron has been a promising HPM source for many years, and is currently under active research as a GW class tube. While considerable effort has been spent an understanding the bunching mechanism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0b0bfa74adedb8478c3969b02cd9c7e
https://doi.org/10.1109/plasma.1999.829698
https://doi.org/10.1109/plasma.1999.829698
Publikováno v:
IEEE Conference Record - Abstracts. 1999 IEEE International Conference on Plasma Science. 26th IEEE International Conference (Cat. No.99CH36297).
Summary form only given, as follows. The transit-time effect in a coaxial structure has been used by Arman (1996) to design low impedance high power microwave devices that use no externally-generated magnetic fields and have no confining foils. Lugin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a41963fa186a2e74278a6e639aede039
https://doi.org/10.1109/plasma.1999.829695
https://doi.org/10.1109/plasma.1999.829695
Autor:
K.J. Hendricks, R.L. Wright, D.L. Loree, M.J. Arman, John Luginsland, T.C. Cavazos, T.A. Spencer, W.R. Fayne, Edl Schamiloglu, K. Golby
Publikováno v:
IEEE Conference Record - Abstracts. 1999 IEEE International Conference on Plasma Science. 26th IEEE International Conference (Cat. No.99CH36297).
Summary form only given, as follows. The transit-time effect in a coaxial structure has been proposed by Arman (1996) as a mechanism to develop low impedance high power microwave devices using no externally-generated magnetic fields and having no con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28070e6b41d684a0d5ba20c6347fec1c
https://doi.org/10.1109/plasma.1999.829696
https://doi.org/10.1109/plasma.1999.829696
Autor:
M.J. Arman
Publikováno v:
IEEE Conference Record - Abstracts. 1999 IEEE International Conference on Plasma Science. 26th IEEE International Conference (Cat. No.99CH36297).
Summary form only given. The magnetically insulated line oscillator (MILO) is a low impedance, highly powerful source of coherent RF radiation. It is also compact and relatively simple. MILO's RMS efficiency however is not very high. This is due to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e149052b91ee791fe0c0b20775d0588f
https://doi.org/10.1109/plasma.1999.829584
https://doi.org/10.1109/plasma.1999.829584