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High-power annular beam klystrons
ICOPS 2000. IEEE Conference Record - Abstracts. 27th IEEE International Conference on Plasma Science (Cat. No.00CH37087), 2002Summary form only given. Annular beam klystrons are well suited to high power operation. Significantly higher beam current can be transported than in conventional pencil beam klystrons (at the same beam voltage). Furthermore, we have designed cavity configurations that provide strong beam modulation and efficient energy extraction from the bunched ...
J. Pasour +3 more
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Gigawatt power electron beam generator
Proceedings of the Indian Academy of Sciences Section C: Engineering Sciences, 1981In this paper, the design and constructional details of a short-pulse electron beam generator are presented highlighting some of the novel features of its operation. The diagnostic results of the electron beam, both in the diode and in the drift region, are described. A 60-ns duration 200 keV, 30 kA electron beam has been obtained.
K. K. Jain, P. I. John
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SPIE Proceedings, 2014
In various modern scientific and industrial laser applications, beam-shaping optics manipulates the laser spot size and its intensity distribution. However the designed laser spot frequently deviates from the design goal due to real life imperfections and effects, such as: input laser distortions, optical distortion, heating, overall instabilities, and
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In various modern scientific and industrial laser applications, beam-shaping optics manipulates the laser spot size and its intensity distribution. However the designed laser spot frequently deviates from the design goal due to real life imperfections and effects, such as: input laser distortions, optical distortion, heating, overall instabilities, and
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High-power laser-beam characteristics
SPIE Proceedings, 2004Applications of high-power lasers are very important, especially for cutting and welding. As it is known, laser-beam characteristics have not constant value in time. So we may have suitable testing methods which allow us to determine the principal beam characteristics.
Claudiu Isarie, Ilie Isarie
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Rotational-beam power theorems
IEEE Transactions on Electron Devices, 1965General power theorems for rotational electron beams and some moving plasmas are derived by using three sets of variables: Clebsch variables, Lin's variables, and polarization variables. In each case, the most general power theorem, with unspecified linear operators, is given and for the polarization-variable case this is specialized to some cases of ...
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Polyconductor beam power sensor
International Journal of Electronics, 1991Abstract The design is presented of a sensor circuit for the thermal detection and power measurement of incident microwave and laser beams due to accidental or targeted exposure. In this sensor, a polyconductor device acts as a microwave or optical beam absorber.
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Proceedings of the IEEE, 1973
High-power klystrons, coupled-cavity traveling-wave tubes (TWT's), and hybrid tubes, all of which utilize the microwave cavity as the basic circuit element, are described. These amplifiers are used in communications, radars, electronic countermeasures, and other applications at power levels from a few hundred watts to megawatts, at frequencies from ...
A. Staprans, E.W. McCune, J.A. Ruetz
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High-power klystrons, coupled-cavity traveling-wave tubes (TWT's), and hybrid tubes, all of which utilize the microwave cavity as the basic circuit element, are described. These amplifiers are used in communications, radars, electronic countermeasures, and other applications at power levels from a few hundred watts to megawatts, at frequencies from ...
A. Staprans, E.W. McCune, J.A. Ruetz
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Astropolitics, 2007
Solar power satellites to beam electric power down to Earth from orbit, or the Moon, is a concept that can potentially provide the world with clean energy. However, the technical, environmental, political, and legal challenges are great. The size and scope of the solar arrays needed by SPS are orders of magnitude beyond the scope of any solar arrays ...
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Solar power satellites to beam electric power down to Earth from orbit, or the Moon, is a concept that can potentially provide the world with clean energy. However, the technical, environmental, political, and legal challenges are great. The size and scope of the solar arrays needed by SPS are orders of magnitude beyond the scope of any solar arrays ...
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HIGH POWER BEAM-PLASMA AMPLIFIER
1964Abstract : Efficiency predictions obtained from the large signal computer theory are given. A Langmuir probe plasma mapping vehicle is described and results given. A coupling experiment showing 20 db of coupling enhancement due to the plasma is disucssed and the design of a second amplifier tube presented.
H. S. Maddix +3 more
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SPIE Proceedings, 1993
FEL power beaming has broad application to space operations. The Rocketdyne Division of Rockwell International Corporation has examined the commercial applications of beamed power from Earth to space using the Radio Frequency LINAC Free Electron Laser (RF FEL) and has determined that there is a substantial addressable market. Rocketdyne's experience in
Michael C. Lampel +5 more
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FEL power beaming has broad application to space operations. The Rocketdyne Division of Rockwell International Corporation has examined the commercial applications of beamed power from Earth to space using the Radio Frequency LINAC Free Electron Laser (RF FEL) and has determined that there is a substantial addressable market. Rocketdyne's experience in
Michael C. Lampel +5 more
openaire +1 more source