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国家自然科学基金(11005066)

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Simulation of ECR Startup and Comparison with Experimental Observations in SUNIST
2011年
Transient process of ECR startup in SUNIST is analyzed and simulated in a one- dimensional model. Contributions from the generation, drift, diffusion and loss of electrons are taken into account in the model and estimated from experimental parameters, e.g., toroidal field, vertical field and gas filling pressure. Typical discharges are simulated with the conditions close to the experimental ones. Experimental and simulated results are comparable qualitatively in amplitudes and semi-quantitatively in time. From the results it is confirmed that the transient process of ECR startup ill SUNIST is dominated, as preliminarily deduced from experimental observations, by a pair of exclusive factors, namely the absorption, due to gas ionization, and the reflection of microwave, caused by the shift of over dense plasmas due to outward E x B drift. In addition to these two factors, electron loss along the field line is also very important in determining the character of discharges.
谭熠高喆王龙
SUNIST球形托卡马克研究进展
<正>近期对SUNIST欧姆场和垂直场的电源进行了升级。使用IGBT并联技术实现了13 kA/3 kV的大电流IGBT开关,并将其应用至H桥双向放电电路,将欧姆场由原先0~13 kA单边放电拓展为±13 kA的双边放电,...
谭熠高喆王文浩解丽风谢会乔赵爱慧刘阳青姜艳铮柴忪王龙杨宣宗冯春华杨桂香
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