Use of an ion source with an inhomogeneous electric field for studying processes induced by collisions of electrons and ions with molecules

Abstract The high efficiency of a new ion beam extraction system with a strongly inhomogeneous electric field has been experimentally demonstrated. Previously, this approach was proposed and analysed numerically by the authors. The experiment was carried out using a pulsed high-current electron-cyclotron resonance (ECR) ion source SMIS 37 with high frequency (37.5 GHz) and high power (100 kW) microwave plasma heating. The accelerating field strength is increased (when compared to a flat or a quasi-pierced geometry) in the plasma meniscus region due to its inhomogeneity. It allows for the increase of the ion acceleration rate and for expansion of the available range of current densities with effective ion beam formation. The experiment demonstrated the main advantages of this approach, such as: a significant decrease in the optimal accelerating voltage for certain values of current density; a possibility of ion beam formation with previously inaccessible current densities; a significant decrease in the ion flux to the puller in non-optimal modes of ion beam formation. Proton beams with a current density of up to 1.1 A cm-2 were obtained for the first time with an ECR ion source.

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SIMULATION OF THE FLIGHT OF A DROP OF GALVANIC ELECTROLYTE IN AN INHOMOGENEOUS FIELD OF AN ELECTRIC CATCHER

STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. In the frame of the XXIII Agribusiness Forum of the South of Russia and the Exhibition «Interagromash» Volume 1 ◽

10.23947/interagro.2020.1.467-471 ◽

2020 ◽

Author(s):

V.I. Garshin ◽

◽

A.R. Lebedev ◽

S.E. Geraskova ◽

◽

...

Keyword(s):

Electric Field ◽

Flight Path ◽

Inhomogeneous Field ◽

Inhomogeneous Electric Field ◽

Trajectory Method

The article shows the relations for modeling an inhomogeneous electric field and the flight path of a drop of galvanic electrolyte in it. Estimates are preliminary. Articles and patents of authors in which non-uniform fields are already used are given. A modified trajectory method is proposed for evaluating the effectiveness of trapping harmful electrolyte droplets.

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Simulation of Electrostatic Modes in a Magnetoplasma with Transverse Inhomogeneous Electric Field

10.21236/ada198823 ◽

1988 ◽

Cited By ~ 1

Author(s):

K.-I. Nishikawa ◽

G. Ganguli ◽

Y. C. Lee ◽

P. J. Palmadesso

Keyword(s):

Electric Field ◽

Inhomogeneous Electric Field

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Response of a weakly magnetized hot QCD medium to an inhomogeneous electric field

Physical Review D ◽

10.1103/physrevd.103.074017 ◽

2021 ◽

Vol 103 (7) ◽

Author(s):

K. K. Gowthama ◽

Manu Kurian ◽

Vinod Chandra

Keyword(s):

Electric Field ◽

Inhomogeneous Electric Field

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Motion analysis of free metal particle under inhomogeneous electric field in GIL

2020 12th IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) ◽

10.1109/appeec48164.2020.9220502 ◽

2020 ◽

Author(s):

Feng Dai ◽

Fenglei Tan ◽

Lixian Wang ◽

Xuan Chen ◽

Hongzhong Ma ◽

...

Keyword(s):

Electric Field ◽

Motion Analysis ◽

Metal Particle ◽

Inhomogeneous Electric Field ◽

Free Metal

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Drift of excitons in an inhomogeneous electric field in silicon at 4.2K

Russian Physics Journal ◽

10.1007/bf02508776 ◽

1997 ◽

Vol 40 (5) ◽

pp. 462-464 ◽

Cited By ~ 1

Author(s):

A. M. Musaev

Keyword(s):

Electric Field ◽

Inhomogeneous Electric Field

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Intercomponent Momentum Transport and Electrical Conductivity of Collisionless Plasma

Canadian Journal of Physics ◽

10.1139/p73-336 ◽

1973 ◽

Vol 51 (24) ◽

pp. 2604-2611 ◽

Cited By ~ 3

Author(s):

H. E. Wilhelm

Keyword(s):

Electrical Conductivity ◽

Electric Field ◽

Collisionless Plasma ◽

Electrical Current ◽

Distribution Functions ◽

Momentum Transport ◽

Ion Drift ◽

Moment Approximation ◽

Electrons And Ions ◽

Two Component

Based on the Lenard–Balescu equation, the interaction integral for the intercomponent momentum transfer in a two-component, collisionless plasma is evaluated in closed form. The distribution functions of the electrons and ions are represented in the form of nonisothermal, displaced Max wellians corresponding to the 5-moment approximation. As an application, the transport of electrical current in an electric field is discussed for infrasonic up to sonic electron–ion drift velocities.

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