Electron beam extraction on plasma cathode electron sources system

2017 ◽  
Author(s):  
Agus Purwadi ◽  
Taufik ◽  
Lely Susita R. M. ◽  
Suprapto ◽  
Saefurrochman ◽  
...  
Keyword(s):  
Electron Beam ◽  
Beam Extraction ◽  
Plasma Cathode ◽  
Electron Sources

scholarly journals Fore-vacuum plasma-cathode electron sources

2008 ◽  
Vol 26 (4) ◽  
pp. 619-635 ◽  
Author(s):  
V.A. Burdovitsin ◽  
E.M. Oks
Keyword(s):  
Electron Beam ◽  
High Pressures ◽  
Electrical Breakdown ◽  
Current Density Distribution ◽  
Beam Current ◽  
Beam Current Density ◽  
Beam Power ◽  
Plasma Cathode ◽  
Local Maxima ◽  
Electron Sources

AbstractThis paper presents a review of physical principles, design, and performances of plasma-cathode direct current (dc) electron beam guns operated in so called fore-vacuum pressure (1–15 Pa). That operation pressure range was not reached before for any kind of electron sources. A number of unique parameters of the e-beam were obtained, such as electron energy (up to 25 kV), dc beam current (up 0.5 A), and total beam power (up to 7 kW). For electron beam generation at these relatively high pressures, the following special features are important: high probability of electrical breakdown within the accelerating gap, a strong influence of back-streaming ions on both the emission electrode and the emitting plasma, generation of secondary plasma in the beam propagation region, and intense beam-plasma interactions that lead in turn to broadening of the beam energy spectrum and beam defocusing. Yet other unique peculiarities can occur for the case of ribbon electron beams, having to do with local maxima in the lateral beam current density distribution. The construction details of several plasma-cathode electron sources and some specific applications are also presented.

scholarly journals X-ray photons produced from a plasma-cathode electron beam for radiation biology applications

2021 ◽  
Vol 118 (4) ◽  
pp. 044102
Author(s):  
F. Gobet ◽  
P. Barberet ◽  
L. Courtois ◽  
G. Deves ◽  
J. Gardelle ◽  
...  
Keyword(s):  
Electron Beam ◽  
Radiation Biology ◽  
Plasma Cathode ◽  
X Ray

Low-Energy Electron Beam Extraction From Spherical Discharge

2011 ◽  
Vol 39 (11) ◽  
pp. 2554-2555 ◽  
Author(s):  
Mahdi Yousefi ◽  
Vahid Damideh ◽  
Hamid Ghomi
Keyword(s):  
Electron Beam ◽  
Low Energy ◽  
Energy Electron ◽  
Beam Extraction ◽  
Low Energy Electron

scholarly journals Динамическое управление мощностью мегаваттного электронного пучка субмиллисекудной длительности в источнике с плазменным катодом

2021 ◽  
Vol 47 (10) ◽  
pp. 38
Author(s):  
М.С. Воробьёв ◽  
П.В. Москвин ◽  
В.И. Шин ◽  
Н.Н. Коваль ◽  
К.Т. Ашурова ◽  
...  
Keyword(s):  
Electron Beam ◽  
Beam Energy ◽  
Maximum Rate ◽  
Control Method ◽  
Beam Current ◽  
Rate Of Change ◽  
Beam Power ◽  
Metallic Materials ◽  
Plasma Cathode ◽  
Variable Power

The paper describes a method for a controlled change in the power of an electron beam during a pulse of submillisecond duration, using a source "SOLO" with a plasma cathode. The beam power is controlled by changing the amplitude of the beam current with a corresponding change in the concentration of the emission plasma. This control method allows generating submillisecond beams of variable power (up to 10 MW at a maximum rate of change of no more than 0.5 MW/µs), which can be used for processing various metallic materials in order to change the functional properties of their surface with the ability to control the rate of input of beam energy into the surface of these materials.

Generation of Millisecond Low-Energy Large-Radius Electron Beam by a Forevacuum Plasma-Cathode Source

2019 ◽  
Vol 47 (8) ◽  
pp. 3579-3585 ◽  
Author(s):  
Andrey V. Kazakov ◽  
Alexander V. Medovnik ◽  
Efim M. Oks
Keyword(s):  
Electron Beam ◽  
Low Energy ◽  
Large Radius ◽  
Plasma Cathode

scholarly journals Electron beam generation with variable current amplitude during its pulse in a source with a grid plasma cathode

2019 ◽  
Vol 1393 ◽  
pp. 012064
Author(s):  
M S Vorobyov ◽  
N N Koval ◽  
P V Moskvin ◽  
A D Teresov ◽  
S Yu Doroshkevich ◽  
...  
Keyword(s):  
Electron Beam ◽  
Current Amplitude ◽  
Plasma Cathode ◽  
Electron Beam Generation ◽  
Beam Generation

scholarly journals Synchrotron Radiation Sources – Present Capabilities and Future Directions

1998 ◽  
Vol 5 (3) ◽  
pp. 168-175 ◽  
Author(s):  
Herman Winick
Keyword(s):  
Electron Beam ◽  
High Energy ◽  
Storage Rings ◽  
Light Sources ◽  
Beam Emittance ◽  
High Brightness ◽  
Performance Levels ◽  
Electron Sources ◽  
Short Period ◽  
Pass Through

Many of the more than 40 operational light sources around the world have achieved performance levels that exceed initial design goals. These accomplishments are reviewed, along with concepts and proposals for sources with performance levels exceeding those of present sources. These include storage rings with lower electron-beam emittance than present third-generation rings and free-electron lasers (FELs). It now appears that the highest performance sources will be based on linacs rather than storage rings. This is because emittance originates differently and scales differently with electron energy for rings and linacs, so that the lowest electron-beam emittance can be achieved in high-energy linacs equipped with high-brightness electron sources. Such electron beams can be used to provide X-ray beams with very high brightness and coherence in sub-picosecond pulses in a single pass through a small-gap short-period undulator by spontaneous emission, and with even higher beam brightness and coherence by stimulated coherent emission in an FEL. Designs for such FEL sources, and associated research and development, are underway at several laboratories.

Sign in / Sign up

Export Citation Format

Share Document