Electrostatic Plasma Lens Focusing of an Intense Electron Beam in an Electron Source With a Vacuum Arc Plasma Cathode

Gushenets, V. I.; Goncharov, A.; Dobrovolskiy, A.; Dunets, S.; Litovko, I.; Окс, Е. М.; Бугаев, А. С.

doi:10.1109/tps.2013.2252026

Cited by 17 publications

(9 citation statements)

References 7 publications

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“…1. The electron source comprises a plasma emitter based on the rather well known plasma generator with a low-pressure arc discharge initiated by an insulator flashover [1,7]. The electron source is supplemented with a plasma lens which is a magnetron-type plasma-dynamic device with crossed electric and magnetic fields.…”

Section: Experimental Set Up and Research Resultsmentioning

confidence: 99%

Low energy electron beam transport with a space charge lens

Gushenets

Goncharov

Dobrovolskiy

et al. 2014

2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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Pulsed electron beams with high (1÷100 J/cm2) energy density are used in various processes involved in structural and functional modification of surface properties of materials and products. One of the main problems of successful electron beam application is to develop reliable and efficient methods of transport and manipulation of electron beams with high energy density. The paper presents new experimental and theoretical research results on wide-aperture (diameter 6 cm) lowenergy (up to 40 kV) high-current (up to 100 A) electron beams focused and manipulated with a space-charge lens.

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Section: Experimental Set Up and Research Resultsmentioning

confidence: 99%

Low energy electron beam transport with a space charge lens

Gushenets

Goncharov

Dobrovolskiy

et al. 2014

2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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“…Such electric field strength is sufficient for creation of short-focus elements to be used in systems for manipulating intense beams of negative ions and electrons. Experimental results [14] demonstrate an attractive possibilities application positive space charged plasma lens with magnetic electron insulation for focusing and manipulating wide-aperture high-current no relativistic electron beams. For relatively low-current mode for which electron beam space charged less than positive space charged plasma lens, it realizes electrostatic focusing is passing electron beam.…”

Section: Conclusion Remarksmentioning

confidence: 86%

Modeling of Novel Plasma-Optical Systems

Litovko¹,

Goncharov²

2019

Plasma Science and Technology - Basic Fundamentals and Modern Applications

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This is the review of the current status an ongoing theoretical, simulations and some experimental researches of the novel plasma dynamical devices based on the axialsymmetric cylindrical electrostatic plasma lens (PL) configuration and the fundamental plasma-optical principles of magnetic electron isolation and equipotentialization magnetic field lines. The crossed electric and magnetic fields plasma lens configuration provides us with the attractive and suitable method for establishing stable plasma discharge at lowpressure. Using plasma lens configuration in this way some novel cost-effective, lowmaintenance, high-reliability plasma devices using permanent magnets were developed. In part, it was proposed and created device for ion treatment and deposition of exotic coatings, device for filtering dense plasma flow from micro-droplets, electrostatic plasma lens for focusing and manipulating wide aperture, high-current, low-energy, heavy metal ion plasma flow, and the effective lens was first proposed for manipulating high-current beams of negatively charged particles (negative ions and electrons). Here we mainly describe models and results of theoretical consideration and simulation of the novel generation cylindrical plasma devices.

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“…There are two main reasons for electron beam non-uniformity during its propagation: influence of magnetic field of the electron beam current [12,13], and interaction of the beam electrons with the beam-produced plasma [14]. To elucidate the influence of the self-magnetic field let's consider initially uniform cylindrical electron beam.…”

Section: Discussionmentioning

confidence: 99%

Generation of large cross-sectional area electron beams by a fore-vacuum-pressure plasma electron source based on the arc discharge

Бурдовицин

Казаков

Medovnik

et al. 2016

AIP Conference Proceedings

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Abstract. We describe formation and propagation of large cross-sectional area electron beams generated by a plasma electron source operating in the fore-vacuum pressure range 1-10 Pa. The current density distribution of the electron beam is strongly dependent on the beam current and the operation gas pressure. The latter could be connected with beam focusing by its self-magnetic field and due to electron beam space-charge neutralization by beam plasma.

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Electrostatic Plasma Lens Focusing of an Intense Electron Beam in an Electron Source With a Vacuum Arc Plasma Cathode

Cited by 17 publications

References 7 publications

Low energy electron beam transport with a space charge lens

Low energy electron beam transport with a space charge lens

Modeling of Novel Plasma-Optical Systems

Generation of large cross-sectional area electron beams by a fore-vacuum-pressure plasma electron source based on the arc discharge

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