TY  - JOUR
AU  - Ueda, Y.
AU  - Miyata, K.
AU  - Tsukatani, K.
AU  - Ohtsuka, Y.
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.
TI  - Exposure of tungsten nano-structure to TEXTOR edge plasma
JO  - Journal of nuclear materials
VL  - 415
SN  - 0022-3115
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PreJuSER-10333
SP  - S92 - S95
PY  - 2011
N1  - Record converted from VDB: 12.11.2012
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. (C) 2010 Elsevier B.V. All rights reserved.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000298128100018
DO  - DOI:10.1016/j.jnucmat.2010.08.019
UR  - https://juser.fz-juelich.de/record/10333
ER  -