Simulation of light emission from hydrocarbon injection in TEXTOR using the ERO code
Simulation of light emission from hydrocarbon injection in TEXTOR using the ERO code
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DOI：
10.1088/0741-3335/51/5/055019
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发表时间：
2009-05
影响因子：
2.2
通讯作者：
R. Ding;A. Kirschner;D. Borodin;S. Brezinsek;A. Pospieszczyk;O. Schmitz;V. Philipps;U. Samm;J. Chen;J. Li
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文献类型：
--
作者：
R. Ding;A. Kirschner;D. Borodin;S. Brezinsek;A. Pospieszczyk;O. Schmitz;V. Philipps;U. Samm;J. Chen;J. Li
高级烃分子（乙烷族）的反应速率系数已被实施到3D蒙特卡罗程序ERO，这是用于模拟碳氢化合物的运输和光谱可观察到的自由基在边缘等离子体聚变实验的光发射。为了对ERO建模进行基准测试，在TEXTOR进行了专门的实验，其中将不同的碳氢化合物分子（CD 4、C2 D4和C2 D 6）注入到最后一个闭合通量表面附近的等离子体中。观察到烃裂解产物CD、C2和C+的发光。模拟的CD Gerö带、C2 Swan带和C II带的光发射穿透深度与实验符合得很好。CD和C2的有效逆光子效率（D/XB值），其中包括初始分子的解离链，更依赖于局部电子温度比电子密度。计算的D/XB值与实验值相当一致。
Reaction rate coefficients for higher hydrocarbon molecules (ethane family) have been implemented into the 3D Monte Carlo code ERO, which is used for modelling of hydrocarbon transport and light emission of spectroscopically observable radicals in the edge plasma of fusion experiments. For benchmarking of the ERO modelling, dedicated experiments were carried out at TEXTOR in which different hydrocarbon molecules (CD4, C2D4 and C2D6) were injected into the plasma near the last closed flux surface. The light emission of the hydrocarbon break-up products CD, C2 and C+ was observed. The modelled penetration depths of the light emission from the CD Gerö-band, C2 Swan band and C II are in good agreement with the experiments. The effective inverse photon efficiencies (D/XB values) for CD and C2, which include the dissociation chains of the initial molecules, are more dependent on local electron temperature than on electron density. The calculated D/XB values are in fair agreement with the experimental ones.