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Simulation and optimization of a 10 A electron gun with electrostatic compression for the electron beam ion source
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10.1063/1.4793773
/content/aip/journal/rsi/84/3/10.1063/1.4793773
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/3/10.1063/1.4793773
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the electron gun with electrostatic focusing.

Image of FIG. 2.
FIG. 2.

Simulation model with magnetic-field's distribution optimized for a 10 A electron beam current.

Image of FIG. 3.
FIG. 3.

Simulated electron trajectories for optimized gun parameters. Iel = 10.0 A, Ua = 49.2 kV, Binj = 2.1 kGs.

Image of FIG. 4.
FIG. 4.

Dependence of the minimum radial oscillations (dr_min) and of the residual magnetic field on the cathode (B_cath) on the radius of the aperture in the front plate of the magnetic shield for 10 A electron beam.

Image of FIG. 5.
FIG. 5.

Dependences of minimum radial beam oscillations on the shift of the cathode with respect to the anode (dr_min_cath), and on the shift of vertical plate of the magnetic shim (dr_min_shim) from their initial positions.

Image of FIG. 6.
FIG. 6.

Dependence of amplitude of the electron beam's radial oscillations (dr) on the injection magnetic field, B, for electron beam currents of 1.0 A and 10.0 A.

Image of FIG. 7.
FIG. 7.

Simulated dependences of the optimum injection magnetic field (B_opt), of the residual magnetic field on the cathode (B_cath), and of the minimum electron-beam radius (r_inj) on the electron beam current (I_el).

Image of FIG. 8.
FIG. 8.

Simulated radial distribution of the cathode's emission current density for Iel = 10.0 A.

Image of FIG. 9.
FIG. 9.

Electric field distribution in a cathode-anode gap of the electron gun. Values of the electric field are given in V/m.

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/content/aip/journal/rsi/84/3/10.1063/1.4793773
2013-03-11
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Simulation and optimization of a 10 A electron gun with electrostatic compression for the electron beam ion source
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/3/10.1063/1.4793773
10.1063/1.4793773
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