Exposure of tungsten nano-structure to TEXTOR edge plasma

Y. Ueda; K. Miyata; Y. Ohtsuka; H. T. Lee; M. Fukumoto; S. Brezinsek; J. W. Coenen; A. Kreter; A. Litnovsky; V. Philipps; B. Schweer; G. Sergienko; T. Hirai; A. Taguchi; Y. Torikai; K. Sugiyama; T. Tanabe; S. Kajita; N. Ohno

doi:10.1016/j.jnucmat.2010.08.019

Exposure of tungsten nano-structure to TEXTOR edge plasma

Y. Ueda^*, K. Miyata, Y. Ohtsuka, H. T. Lee, M. Fukumoto, S. Brezinsek, J. W. Coenen, A. Kreter, A. Litnovsky, V. Philipps, B. Schweer, G. Sergienko, T. Hirai, A. Taguchi, Y. Torikai, K. Sugiyama, T. Tanabe, S. Kajita, N. Ohno

^*この論文の責任著者

研究推進機構水素同位体科学研究センター

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

41 被引用数 (Scopus)

抄録

W nano-structures (fuzz), produced in the linear high plasma device, NAGDIS, were exposed to TEXTOR edge plasmas (ohmic He/D mixed plasma and pure D plasma) to study formation, erosion and C deposition on W fuzz in tokamak plasmas for the first time. Fuzz layers were either completely eroded or covered by C deposit. There was no clear indication of W fuzz growth under the present conditions. There was no significant difference of C deposition between 'thick' fuzz (500-600 nm in thickness) and 'thin' fuzz (300-400 nm) in the He/D plasma. On the W fuzz surface, C deposition was enhanced probably due to reduction of effective sputtering yield and effective reflection coefficient of carbon ions, similar to roughness effects. Formation and erosion of W fuzz in tokamak devices and role of impurities are discussed.

本文言語	英語
ページ（範囲）	S92-S95
ジャーナル	Journal of Nuclear Materials
巻	415
号	1 SUPPL
DOI	https://doi.org/10.1016/j.jnucmat.2010.08.019
出版ステータス	出版済み - 2011/08/01

ASJC Scopus 主題領域

核物理学および高エネルギー物理学
材料科学一般
原子力エネルギーおよび原子力工学

文献へのアクセス

10.1016/j.jnucmat.2010.08.019

引用スタイル

Ueda, Y., Miyata, K., Ohtsuka, Y., Lee, H. T., Fukumoto, M., Brezinsek, S., Coenen, J. W., Kreter, A., Litnovsky, A., Philipps, V., Schweer, B., Sergienko, G., Hirai, T., Taguchi, A., Torikai, Y., Sugiyama, K., Tanabe, T., Kajita, S., & Ohno, N. (2011). Exposure of tungsten nano-structure to TEXTOR edge plasma. Journal of Nuclear Materials, 415(1 SUPPL), S92-S95. https://doi.org/10.1016/j.jnucmat.2010.08.019

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title = "Exposure of tungsten nano-structure to TEXTOR edge plasma",

abstract = "W nano-structures (fuzz), produced in the linear high plasma device, NAGDIS, were exposed to TEXTOR edge plasmas (ohmic He/D mixed plasma and pure D plasma) to study formation, erosion and C deposition on W fuzz in tokamak plasmas for the first time. Fuzz layers were either completely eroded or covered by C deposit. There was no clear indication of W fuzz growth under the present conditions. There was no significant difference of C deposition between 'thick' fuzz (500-600 nm in thickness) and 'thin' fuzz (300-400 nm) in the He/D plasma. On the W fuzz surface, C deposition was enhanced probably due to reduction of effective sputtering yield and effective reflection coefficient of carbon ions, similar to roughness effects. Formation and erosion of W fuzz in tokamak devices and role of impurities are discussed.",

author = "Y. Ueda and K. Miyata and Y. Ohtsuka and Lee, {H. T.} and M. Fukumoto and S. Brezinsek and Coenen, {J. W.} and A. Kreter and A. Litnovsky and V. Philipps and B. Schweer and G. Sergienko and T. Hirai and A. Taguchi and Y. Torikai and K. Sugiyama and T. Tanabe and S. Kajita and N. Ohno",

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doi = "10.1016/j.jnucmat.2010.08.019",

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Ueda, Y, Miyata, K, Ohtsuka, Y, Lee, HT, Fukumoto, M, Brezinsek, S, Coenen, JW, Kreter, A, Litnovsky, A, Philipps, V, Schweer, B, Sergienko, G, Hirai, T, Taguchi, A, Torikai, Y, Sugiyama, K, Tanabe, T, Kajita, S & Ohno, N 2011, 'Exposure of tungsten nano-structure to TEXTOR edge plasma', Journal of Nuclear Materials, vol. 415, no. 1 SUPPL, pp. S92-S95. https://doi.org/10.1016/j.jnucmat.2010.08.019

TY - JOUR

T1 - Exposure of tungsten nano-structure to TEXTOR edge plasma

AU - Ueda, Y.

AU - Miyata, K.

AU - Ohtsuka, Y.

AU - Lee, H. T.

AU - Fukumoto, M.

AU - Brezinsek, S.

AU - Coenen, J. W.

AU - Kreter, A.

AU - Litnovsky, A.

AU - Philipps, V.

AU - Schweer, B.

AU - Sergienko, G.

AU - Hirai, T.

AU - Taguchi, A.

AU - Torikai, Y.

AU - Sugiyama, K.

AU - Tanabe, T.

AU - Kajita, S.

AU - Ohno, N.

PY - 2011/8/1

Y1 - 2011/8/1

N2 - W nano-structures (fuzz), produced in the linear high plasma device, NAGDIS, were exposed to TEXTOR edge plasmas (ohmic He/D mixed plasma and pure D plasma) to study formation, erosion and C deposition on W fuzz in tokamak plasmas for the first time. Fuzz layers were either completely eroded or covered by C deposit. There was no clear indication of W fuzz growth under the present conditions. There was no significant difference of C deposition between 'thick' fuzz (500-600 nm in thickness) and 'thin' fuzz (300-400 nm) in the He/D plasma. On the W fuzz surface, C deposition was enhanced probably due to reduction of effective sputtering yield and effective reflection coefficient of carbon ions, similar to roughness effects. Formation and erosion of W fuzz in tokamak devices and role of impurities are discussed.

AB - W nano-structures (fuzz), produced in the linear high plasma device, NAGDIS, were exposed to TEXTOR edge plasmas (ohmic He/D mixed plasma and pure D plasma) to study formation, erosion and C deposition on W fuzz in tokamak plasmas for the first time. Fuzz layers were either completely eroded or covered by C deposit. There was no clear indication of W fuzz growth under the present conditions. There was no significant difference of C deposition between 'thick' fuzz (500-600 nm in thickness) and 'thin' fuzz (300-400 nm) in the He/D plasma. On the W fuzz surface, C deposition was enhanced probably due to reduction of effective sputtering yield and effective reflection coefficient of carbon ions, similar to roughness effects. Formation and erosion of W fuzz in tokamak devices and role of impurities are discussed.

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DO - 10.1016/j.jnucmat.2010.08.019

M3 - 学術論文

AN - SCOPUS:80054834276

SN - 0022-3115

VL - 415

SP - S92-S95

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1 SUPPL

ER -

Exposure of tungsten nano-structure to TEXTOR edge plasma

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