Monte-Carlo simulations of chemical erosion in TEXTOR-94 with the ERO-TEXTOR code
Monte-Carlo simulations of chemical erosion in TEXTOR-94 with the ERO-TEXTOR code
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使用 ERO-TEXTOR 代码在 TEXTOR-94 中进行化学侵蚀的蒙特卡罗模拟
DOI：
10.1238/physica.topical.091a00057
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
P. Wienhold
中科院分区：
文献类型：
--
作者：
A. Kirschner;V. Philipps;A. Pospieszczyk;P. Wienhold
本文介绍了暴露在TEXTOR刮擦层上的碳限制器的化学侵蚀的ERO-TEXTOR模拟计算。根据等离子体参数和碳氢化合物撞击限制器表面的粘附概率，计算了测试限制器附近cd发射的空间分布。D/XB值与TEXTOR-94实验数据的对比表明，被侵蚀的油气返回限位器表面的有效黏附率极低。这可以理解为新沉积的a- c:D层的高再侵蚀。对CD-和cii -辐射的径向分布进行了仿真与实验比较，结果表明两者吻合较好。
This paper presents ERO-TEXTOR simulation calculations of chemical erosion of a carbon limiter exposed to the TEXTOR Scrape-Off-Layer. The spatial distribution of CD-emission near a testlimiter is calculated in dependence on the plasma parameters and on the sticking probability for hydrocarbons hitting the limiter surface. The comparison of D/XB values with experimental data on TEXTOR-94 indicates that eroded hydrocarbons returning to the limiter surface have an extremely low effective sticking. This can be understood in terms of a high re-erosion of the freshly deposited a-C:D layer. The comparison of the radial distribution of the CD- and CII-emission between simulation and experiment shows a good agreement.