The energy confinement time in stellarators
The energy confinement time in stellarators
复制标题
仿星器中的能量限制时间
DOI：
10.1088/0029-5515/24/4/004
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发表时间：
1984
期刊：
影响因子：
3.3
通讯作者：
L. Kovrizhnykh
中科院分区：
文献类型：
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作者：
L. Kovrizhnykh
在新古典输运理论的基础上，提出了粒子和能量通量的近似表达式，该表达式可以应用于当前实验工作中感兴趣的整个碰撞频率范围，并且允许过境粒子和环形和局部捕获粒子的贡献。利用这些表达式，计算了若干恒星（L-2, W-VIIA, Heliotron-E）的电子和离子能量约束时间，结果表明，计算出的约束时间与实验测定值在一个数量级内一致，并且通常不需要通过电子通道引入额外的异常高损失。计算了仍处于设计阶段的两个仿星器（ATF-1和L-3）和一个仿星器热核反应堆的约束时间。结果表明，在反应器的情况下，为了满足Lawson准则（N(0)τE> 1014），系统不必做得过大。
On the basis of neoclassical transport theory, approximate expressions are proposed for particle and energy fluxes which can be applied over the whole range of collision frequencies of interest for current experimental work and which allow for the contributions of both transit particles and toroidally and locally trapped particles. With the help of these expressions, an evaluation is made of the electron and ion energy confinement times for a number of stellarators (L-2, W-VIIA, Heliotron-E), and it is shown that the calculated confinement times coincide to within an order of magnitude with the experimentally determined values and do not as a rule require the introduction of additional anomalously high losses via the electron channel. Confinement times are calculated for two stellarators still at the design stage (ATF-1 and L-3) and also for a stellarator thermonuclear reactor. It is shown that, in the case of the reactor, the system would not have to be made unreasonably large in order to satisfy the Lawson criterion (N(0)τE> 1014).