Damage in graphite tiles irradiated with helium plasmas

H. S. Kim; S. K. Lee; Y. G. Ohn; S. J. Noh; J. J. Kweon; J. K. Park; Cheol Eui Lee; H. J. Woo; S. J. Park; K. S. Chung

doi:10.3938/jkps.61.832

Damage in graphite tiles irradiated with helium plasmas

H. S. Kim, S. K. Lee, Y. G. Ohn, S. J. Noh, J. J. Kweon, J. K. Park, Cheol Eui Lee, H. J. Woo, S. J. Park, K. S. Chung

Department of Physics

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

5 Citations (Scopus)

Abstract

Plasma-facing materials in fusion devices are irradiated by a high particle flux from a dense plasma. Graphite tiles, widely used as plasma-facing materials, were irradiated with a helium plasma of a high flux and low energy; the damage in the graphite-tile target was investigated. Changes in the surface morphology were observed from scanning electron microscopy; the electrical conductivity was decreased from four-probe measurement; the intensity of the graphite disorder peak was increased from Raman spectroscopy.

Original language	English
Pages (from-to)	832-834
Number of pages	3
Journal	Journal of the Korean Physical Society
Volume	61
Issue number	5
DOIs	https://doi.org/10.3938/jkps.61.832
Publication status	Published - 2012

Keywords

Graphite tile
Helium plasma
Plasma-facing material
Radiation-enhanced sublimation

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.3938/jkps.61.832

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title = "Damage in graphite tiles irradiated with helium plasmas",

abstract = "Plasma-facing materials in fusion devices are irradiated by a high particle flux from a dense plasma. Graphite tiles, widely used as plasma-facing materials, were irradiated with a helium plasma of a high flux and low energy; the damage in the graphite-tile target was investigated. Changes in the surface morphology were observed from scanning electron microscopy; the electrical conductivity was decreased from four-probe measurement; the intensity of the graphite disorder peak was increased from Raman spectroscopy.",

keywords = "Graphite tile, Helium plasma, Plasma-facing material, Radiation-enhanced sublimation",

author = "Kim, {H. S.} and Lee, {S. K.} and Ohn, {Y. G.} and Noh, {S. J.} and Kweon, {J. J.} and Park, {J. K.} and Lee, {Cheol Eui} and Woo, {H. J.} and Park, {S. J.} and Chung, {K. S.}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (Project No. 20110018739 and No. 2012034779).",

year = "2012",

doi = "10.3938/jkps.61.832",

language = "English",

volume = "61",

pages = "832--834",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "5",

}

TY - JOUR

T1 - Damage in graphite tiles irradiated with helium plasmas

AU - Kim, H. S.

AU - Lee, S. K.

AU - Ohn, Y. G.

AU - Noh, S. J.

AU - Kweon, J. J.

AU - Park, J. K.

AU - Lee, Cheol Eui

AU - Woo, H. J.

AU - Park, S. J.

AU - Chung, K. S.

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (Project No. 20110018739 and No. 2012034779).

PY - 2012

Y1 - 2012

N2 - Plasma-facing materials in fusion devices are irradiated by a high particle flux from a dense plasma. Graphite tiles, widely used as plasma-facing materials, were irradiated with a helium plasma of a high flux and low energy; the damage in the graphite-tile target was investigated. Changes in the surface morphology were observed from scanning electron microscopy; the electrical conductivity was decreased from four-probe measurement; the intensity of the graphite disorder peak was increased from Raman spectroscopy.

AB - Plasma-facing materials in fusion devices are irradiated by a high particle flux from a dense plasma. Graphite tiles, widely used as plasma-facing materials, were irradiated with a helium plasma of a high flux and low energy; the damage in the graphite-tile target was investigated. Changes in the surface morphology were observed from scanning electron microscopy; the electrical conductivity was decreased from four-probe measurement; the intensity of the graphite disorder peak was increased from Raman spectroscopy.

KW - Graphite tile

KW - Helium plasma

KW - Plasma-facing material

KW - Radiation-enhanced sublimation

UR - http://www.scopus.com/inward/record.url?scp=84866388216&partnerID=8YFLogxK

U2 - 10.3938/jkps.61.832

DO - 10.3938/jkps.61.832

M3 - Article

AN - SCOPUS:84866388216

SN - 0374-4884

VL - 61

SP - 832

EP - 834

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 5

ER -

Damage in graphite tiles irradiated with helium plasmas

Abstract

Keywords

ASJC Scopus subject areas

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