Mathematical Simulation of the Distribution of the Electron Beam Current during Pulsed Heating of a Metal Target

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Mathematical Simulation of the Distribution of the Electron Beam Current during Pulsed Heating of a Metal Target. / Lazareva, G. G.; Popov, V. A.; Arakcheev, A. S. et al.

In: Journal of Applied and Industrial Mathematics, Vol. 15, No. 2, 04.2021, p. 292-301.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{5b131f0f466b4c2c9ff2da8b97fb23f7,

title = "Mathematical Simulation of the Distribution of the Electron Beam Current during Pulsed Heating of a Metal Target",

abstract = "We study a model of the current distribution during heating of the surface of a tungstensample under pulsed exposure to an electron beam. The model is based on solving the equationsof electrodynamics and the two-phase Stefan problem for calculating the temperature in thesample region using a cylindrical coordinate system. The model parameters were taken fromexperiments at the “Beam of Electrons for Materials Test Applications” (BETA) stand created atthe Budker Institute of Nuclear Physics. The particular case of axial symmetry is consideredwithout taking the electromotive forces into account. The current is considered as a possiblesource of rotation of the substance which is observed in the experiment. The values of the currentand the acceleration of matter at a surface temperature of over 6000K were obtained. The results of the simulationshow that, to obtain an acceleration capable of initiating the experimentally observed rotationof the melt, it is necessary to take into account some alternative mechanisms of creating a currentin the system with consideration of the evaporation of tungsten above the plate.",

keywords = "distribution of electron beam current, mathematical simulation, method of upper relaxation, potential of current, rotation of tungsten melt",

author = "Lazareva, {G. G.} and Popov, {V. A.} and Arakcheev, {A. S.} and Burdakov, {A. V.} and Schwab, {I. V.} and Vaskevich, {V. L.} and Maksimova, {A. G.} and Ivashin, {N. E.} and Oksogoeva, {I. P.}",

note = "Funding Information: The authors were supported by the Russian Foundation for Basic Research (project no. 19–01–00422). Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Ltd.",

year = "2021",

month = apr,

doi = "10.1134/S1990478921020101",

language = "English",

volume = "15",

pages = "292--301",

journal = "Journal of Applied and Industrial Mathematics",

issn = "1990-4789",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "2",

}

RIS

TY - JOUR

T1 - Mathematical Simulation of the Distribution of the Electron Beam Current during Pulsed Heating of a Metal Target

AU - Lazareva, G. G.

AU - Popov, V. A.

AU - Arakcheev, A. S.

AU - Burdakov, A. V.

AU - Schwab, I. V.

AU - Vaskevich, V. L.

AU - Maksimova, A. G.

AU - Ivashin, N. E.

AU - Oksogoeva, I. P.

PY - 2021/4

Y1 - 2021/4

N2 - We study a model of the current distribution during heating of the surface of a tungstensample under pulsed exposure to an electron beam. The model is based on solving the equationsof electrodynamics and the two-phase Stefan problem for calculating the temperature in thesample region using a cylindrical coordinate system. The model parameters were taken fromexperiments at the “Beam of Electrons for Materials Test Applications” (BETA) stand created atthe Budker Institute of Nuclear Physics. The particular case of axial symmetry is consideredwithout taking the electromotive forces into account. The current is considered as a possiblesource of rotation of the substance which is observed in the experiment. The values of the currentand the acceleration of matter at a surface temperature of over 6000K were obtained. The results of the simulationshow that, to obtain an acceleration capable of initiating the experimentally observed rotationof the melt, it is necessary to take into account some alternative mechanisms of creating a currentin the system with consideration of the evaporation of tungsten above the plate.

AB - We study a model of the current distribution during heating of the surface of a tungstensample under pulsed exposure to an electron beam. The model is based on solving the equationsof electrodynamics and the two-phase Stefan problem for calculating the temperature in thesample region using a cylindrical coordinate system. The model parameters were taken fromexperiments at the “Beam of Electrons for Materials Test Applications” (BETA) stand created atthe Budker Institute of Nuclear Physics. The particular case of axial symmetry is consideredwithout taking the electromotive forces into account. The current is considered as a possiblesource of rotation of the substance which is observed in the experiment. The values of the currentand the acceleration of matter at a surface temperature of over 6000K were obtained. The results of the simulationshow that, to obtain an acceleration capable of initiating the experimentally observed rotationof the melt, it is necessary to take into account some alternative mechanisms of creating a currentin the system with consideration of the evaporation of tungsten above the plate.

KW - distribution of electron beam current

KW - mathematical simulation

KW - method of upper relaxation

KW - potential of current

KW - rotation of tungsten melt

UR - http://www.scopus.com/inward/record.url?scp=85116307706&partnerID=8YFLogxK

U2 - 10.1134/S1990478921020101

DO - 10.1134/S1990478921020101

M3 - Article

AN - SCOPUS:85116307706

VL - 15

SP - 292

EP - 301

JO - Journal of Applied and Industrial Mathematics

JF - Journal of Applied and Industrial Mathematics

SN - 1990-4789

IS - 2

ER -

ID: 34376050