在HL-1装置里低杂波模式转换点的变化特性

本文对ＨＬ－１装置里低杂波模式转换点的变化特性进行了研究和数值计算，其参数取自“ＨＬ－１低杂波加热物理方案”。结果表明，波的可近性条件为 １．２３，在物理方案中由公式给出的值为 １．８２。可见方案中的值是可靠的。

Characters of LHW Mobe Convertion in the HL-1 Device

We have studied and computed the characters of LHW mode convertion in HL-1 device based on literature and used the parameters obtained from physical scheme for HL-1 .The results show that when only the condition is taken into account, we can' t find the mode convertion and the non-propaga- tion region for LHW as pointed out in 1]. The slow-wave is accessible and the fast-wave is evanescent under the more rigorous condition, we have got the analytical and the numerical results similar to those obtained in1].As for the critical value Na2 of N2, that is N2=1 .82 in the physical scheme, the unme- rical results is found to be N2=1.23.Evidently, the value of N3 in the scheme satisfies the stix-Golant accessibility condition.