Study of local carbon transport on graphite, tungsten and molybdenum test limiters in TEXTOR by 13CH4 tracer injection

被引：27

作者：

Kreter, A.

Wienhold, P.

Borodin, D.

Brezinsek, S.

Droste, S.

Hirai, T.

Kirschner, A.

Litnovsky, A.

Philipps, V.

Pospieszczyk, A.

Samm, U.

Schmitz, O.

Sergienko, G.

机构：

[1] Forschungszentrum Julich, Assoc EURATOM FZJ, Inst Plasma Phys, D-52425 Julich, Germany

[2] Forschungszentrum Julich, Assoc EURATOM FZJ, Inst Werkstoffe & Verfahren Energietechn, D-52425 Julich, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 2007年 / 363卷

关键词：

amorphous films; carbon-based materials; erosion and deposition; first wall; high-Z material; molybdenum; sputtering; surface analysis; TEXTOR; tracer materials; tungsten;

D O I：

10.1016/j.jnucmat.2007.01.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(CH4)-C-13 was injected through an aperture in a roof-like test limiter covered by a graphite, tungsten or molybdenum plate during Ohmic discharges. The evolution of the deposition pattern was studied by in situ reflectometry during each plasma pulse. Amounts of locally deposited C-13 and co-deposited background C-12 in each shot were determined post-mortem. The C-13 deposition efficiency is in a range of 0.05-0.2% and grows with the increasing amount of C-12. For the same C-12 content the efficiency is of 0.11% for tungsten, 0.14% for molybdenum and 0.17% for graphite. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：179 / 183

页数：5

共 7 条

[1] Characterization of the deuterium recycling flux in front of a graphite surface in the TEXTOR tokamak [J].