TY  - JOUR
AU  - Ohya, K.
AU  - Kawakami, R.
AU  - Tanabe, T.
AU  - Wada, M.
AU  - Ohgo, T.
AU  - Philipps, V.
AU  - Pospieszczyk, A.
AU  - Schweer, B.
AU  - Huber, A.
AU  - Rubel, M.
AU  - von Seggern, J.
AU  - Noda, N.
TI  - Simulation study of carbon and tungsten deposition on W/C twin test limiter in TEXTOR-94
JO  - Journal of nuclear materials
VL  - 283-287
SN  - 0022-3115
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PreJuSER-37991
SP  - 1182 - 1186
PY  - 2001
N1  - Record converted from VDB: 12.11.2012
AB  - In order to investigate the impurity release and surface modification on a W/C twin test limiter, made of a half of W and the other half of C, exposed to the edge plasma of TEXTOR-94, simulation calculations of ion-surface interaction are conducted by a Monte Carlo code. According to the calculations, experimentally observed spatial distributions of WI and CII line intensities around the W side of the limiter can be explained by physical sputtering of W, reflection of bombarding C ions and physical sputtering of implanted C. The CII line emission, resulting from thermal C atoms, around the C side of the limiter is suppressed by deposition of W, and the reflection of C ions from W deposited on C causes the CII intensity to decay more slowly than that from C without the deposition. Bombardment with deuterium edge plasmas, containing impurity W, produces a thick W layer on the C side of the limiter, whereas C implanted in the W side is strongly sputtered due to impact of most constituent D ions. (C) 2000 Elsevier Science B.V. All rights reserved.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000165877800092
DO  - DOI:10.1016/S0022-3115(00)00172-0
UR  - https://juser.fz-juelich.de/record/37991
ER  -