Study of gross and net erosion in the ASDEX upgrade divertor

被引:32
作者
Krieger, K [1 ]
Roth, J [1 ]
Annen, A [1 ]
Jacob, W [1 ]
Pitcher, CS [1 ]
Schneider, W [1 ]
Thoma, A [1 ]
Weinlich, M [1 ]
机构
[1] CFFTP,TORONTO,ON,CANADA
关键词
ASDEX upgrade; erosion and particle deposition diagnostic; low Z wall material; high Z wall material;
D O I
10.1016/S0022-3115(97)80122-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Erosion of carbon and tungsten in the divertor of ASDEX Upgrade was investigated by surface analysis of target tile probes. The probes were exposed in the divertor using a manipulator system. Erosion of carbon was measured by graphite probes covered with a 150 nm layer of (13) C isotope to distinguish from the intrinsic carbon content. Tungsten erosion was measured by similar probes with 1-20 nm tungsten markers evaporated on the surface. From the measured erosion, sputtering yields were determined using plasma parameters at the target plates obtained from flush mounted Langmuir probes.
引用
收藏
页码:684 / 689
页数:6
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