INVESTIGATION OF RADIATION-ENHANCED SUBLIMATION OF GRAPHITE TEST-LIMITERS IN TEXTOR

被引：25

作者：

PHILIPPS, V ^{[1
]}

POSPIESZCZYK, A ^{[1
]}

SCHWEER, B ^{[1
]}

UNTERBERG, B ^{[1
]}

VIETZKE, E ^{[1
]}

TRINKAUS, H ^{[1
]}

机构：

[1] KFA JULICH, EURATOM ASSOC, RES CTR, INST SOLID STATE PHYS, D-52425 JULICH, GERMANY

来源：

JOURNAL OF NUCLEAR MATERIALS | 1995年 / 220卷

关键词：

D O I：

10.1016/0022-3115(94)00657-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Graphite test-limiters have been used as single main limiters in TEXTOR and exposed to convective heat loads of typically 10-20 MW/m(2). Local carbon release has been studied by means of local spectroscopy of CI-and CII-emission lines. Surface temperature distributions were determined by CCD camera measurements in the IR spectral region. It was found that the increase of the local carbon flux was below 15% when the surface temperature increased locally up to about 1900 degrees C demonstrating that radiation enhanced carbon emission (RES) is negligible under these conditions. The suppression of RES-emission is discussed in view of present RES models.

引用

页码：467 / 471

页数：5

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