Monte Carlo simulation of neutral transport in the non-axisymmetric region of the GAMMA 10 anchor-cell
Monte Carlo simulation of neutral transport in the non-axisymmetric region of the GAMMA 10 anchor-cell
复制标题
GAMMA 10 锚单元非轴对称区域中性输运的蒙特卡罗模拟
DOI：
10.1017/s0022377806005770
复制
发表时间：
2006
影响因子：
2.5
通讯作者：
T. Cho
中科院分区：
文献类型：
--
作者：
Y. Nakashima;Y. Higashizono;M. Shoji;S. Kobayashi;Y. Kubota;M. Yoshikawa;Takayuki Kobayashi;M. K. Islam;T. Cho
描述了一个使用DEGA版本63蒙特卡罗程序的三维中性输运模型，以了解中性子在伽马10级联反射镜非轴对称锚定区的行为。以实验数据为基础，在合理的粒子源假设下，建立了精确的三维网格结构，并进行了数值模拟。在标准离子回旋加热等离子体中，利用5通道H-α探测器阵列对东锚室外跃迁区域的H-α谱线发射进行了详细的测量，并与模拟结果进行了比较。模拟得到的H-α辐射的空间分布与实验结果吻合较好，阐明了中性体在该区域的独特行为。
A three-dimensional neutral transport model using the DEGAS version 63 Monte Carlo code is described in order to understand the behavior of neutrals in the non-axisymmetric anchor region of the GAMMA 10 tandem mirror. A precise mesh structure with three-dimensional geometry was built up and the simulation was carried out under a plausible assumption of the particle source on the basis of experimental data. In standard ion-cyclotron-range-of-frequency heated plasmas, detailed measurements of Hα line emission were performed using a 5-ch Hα detector array in the outer-transition region of the east anchor cell and the experimental results were compared with the simulation. The spatial profile of Hα emission predicted from the simulation agreed well with the experimental result and the distinctive behavior of neutrals in this region was clarified.