B2-EIRENE simulation of plasma and neutrals in MAGNUM-PSI

M. Baeva; W.J. Goedheer; N.J. Lopes Cardozo; D. Reiter

doi:10.1016/j.jnucmat.2007.01.029

B2-EIRENE simulation of plasma and neutrals in MAGNUM-PSI

M. Baeva, W.J. Goedheer, N.J. Lopes Cardozo, D. Reiter

Plasma & Materials Processing

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Abstract

A self-consistent description (performed by means of the B2-EIRENE code package) of a hydrogen plasma including electrons, ions and neutral background gas is used to investigate the processes and plasma behavior under conditions expected in MAGNUM-PSI. Several cases varying in gas-puffing, pumping rate, and plasma parameters are simulated. In all cases a detached plasma regime is achieved. The plasma d. increases considerably for higher neutral pressures up to (1-5) * 1014 cm-3. The particle flux to the target is .apprx.1024 m-2 s-1 and the plasma heat flux is .apprx.10 MW m-2. The latter is significantly reduced in front of the target due to electron and ion cooling resulting from ionization and dissocn. of H2 mols., and charge exchange/elastic collisions. Under the conditions of investigation, the losses due to mol. activated recombination are dominant compared with 3-body recombination of at. ions. [on SciFinder (R)]

Original language	English
Pages (from-to)	330-334
Journal	Journal of Nuclear Materials
Volume	363-365
DOIs	https://doi.org/10.1016/j.jnucmat.2007.01.029
Publication status	Published - 2007

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@article{f4af75dd9647482c994c10549e656e6e,

title = "B2-EIRENE simulation of plasma and neutrals in MAGNUM-PSI",

abstract = "A self-consistent description (performed by means of the B2-EIRENE code package) of a hydrogen plasma including electrons, ions and neutral background gas is used to investigate the processes and plasma behavior under conditions expected in MAGNUM-PSI. Several cases varying in gas-puffing, pumping rate, and plasma parameters are simulated. In all cases a detached plasma regime is achieved. The plasma d. increases considerably for higher neutral pressures up to (1-5) * 1014 cm-3. The particle flux to the target is .apprx.1024 m-2 s-1 and the plasma heat flux is .apprx.10 MW m-2. The latter is significantly reduced in front of the target due to electron and ion cooling resulting from ionization and dissocn. of H2 mols., and charge exchange/elastic collisions. Under the conditions of investigation, the losses due to mol. activated recombination are dominant compared with 3-body recombination of at. ions. [on SciFinder (R)]",

author = "M. Baeva and W.J. Goedheer and {Lopes Cardozo}, N.J. and D. Reiter",

year = "2007",

doi = "10.1016/j.jnucmat.2007.01.029",

language = "English",

volume = "363-365",

pages = "330--334",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

}

TY - JOUR

T1 - B2-EIRENE simulation of plasma and neutrals in MAGNUM-PSI

AU - Baeva, M.

AU - Goedheer, W.J.

AU - Lopes Cardozo, N.J.

AU - Reiter, D.

PY - 2007

Y1 - 2007

N2 - A self-consistent description (performed by means of the B2-EIRENE code package) of a hydrogen plasma including electrons, ions and neutral background gas is used to investigate the processes and plasma behavior under conditions expected in MAGNUM-PSI. Several cases varying in gas-puffing, pumping rate, and plasma parameters are simulated. In all cases a detached plasma regime is achieved. The plasma d. increases considerably for higher neutral pressures up to (1-5) * 1014 cm-3. The particle flux to the target is .apprx.1024 m-2 s-1 and the plasma heat flux is .apprx.10 MW m-2. The latter is significantly reduced in front of the target due to electron and ion cooling resulting from ionization and dissocn. of H2 mols., and charge exchange/elastic collisions. Under the conditions of investigation, the losses due to mol. activated recombination are dominant compared with 3-body recombination of at. ions. [on SciFinder (R)]

AB - A self-consistent description (performed by means of the B2-EIRENE code package) of a hydrogen plasma including electrons, ions and neutral background gas is used to investigate the processes and plasma behavior under conditions expected in MAGNUM-PSI. Several cases varying in gas-puffing, pumping rate, and plasma parameters are simulated. In all cases a detached plasma regime is achieved. The plasma d. increases considerably for higher neutral pressures up to (1-5) * 1014 cm-3. The particle flux to the target is .apprx.1024 m-2 s-1 and the plasma heat flux is .apprx.10 MW m-2. The latter is significantly reduced in front of the target due to electron and ion cooling resulting from ionization and dissocn. of H2 mols., and charge exchange/elastic collisions. Under the conditions of investigation, the losses due to mol. activated recombination are dominant compared with 3-body recombination of at. ions. [on SciFinder (R)]

U2 - 10.1016/j.jnucmat.2007.01.029

DO - 10.1016/j.jnucmat.2007.01.029

M3 - Article

VL - 363-365

SP - 330

EP - 334

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -