%0 Journal Article
%A Ueda, Y.
%A Miyata, K.
%A Tsukatani, K.
%A Ohtsuka, Y.
%A Brezinsek, S.
%A Coenen, J. W.
%A Kreter, A.
%A Litnovsky, A.
%A Philipps, V.
%A Schweer, B.
%A Sergienko, G.
%A Hirai, T.
%A Taguchi, A.
%A Torikai, Y.
%A Sugiyama, K.
%A Tanabe, T.
%A Kajita, S.
%A Ohno, N.
%T Exposure of tungsten nano-structure to TEXTOR edge plasma
%J Journal of nuclear materials
%V 415
%@ 0022-3115
%C Amsterdam [u.a.]
%I Elsevier Science
%M PreJuSER-10333
%P S92 - S95
%D 2011
%Z Record converted from VDB: 12.11.2012
%X 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. (C) 2010 Elsevier B.V. All rights reserved.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000298128100018
%R 10.1016/j.jnucmat.2010.08.019
%U https://juser.fz-juelich.de/record/10333