Profile consistency on TFTR
Profile consistency on TFTR
复制标题
TFTR 上的配置文件一致性
DOI：
10.1088/0029-5515/27/11/012
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发表时间：
1987
期刊：
影响因子：
3.3
通讯作者：
M. Zarnstorff
中科院分区：
文献类型：
--
作者：
E. Fredrickson;K. McGuire;R. Goldston;Morag Bell;B. Grek;D. Johnson;A. W. Morris;F. Stauffer;Gary Taylor;M. Zarnstorff
TFTR和其他托卡马克上的电子热输运比新古典计算预测的要大几个数量级。尽管付出了相当大的努力，但对这种异常输运仍然没有明确的理论认识。电子温度分布，Te(r)，在许多机器上显示出广泛的等离子体参数和加热分布的显著一致性。这可能是解释这种增强热输运过程的重要线索。在论文的第一部分中，我们得到的结果是TFTR电子温度分布形状比以前的分布一致性模型更受约束。对于包括q(a)在内的广泛参数范围，发现剖面形状Te(r)/Te（a/2）是不变的（对于r > 0.4 a）。在第二部分中，讨论了一个实验，该实验使用快速电流斜坡来瞬态解耦电流密度分布，J(r)和Te(r)分布。从这个实验中可以确定，J(r)分布可以被强烈地改变，而对电子温度分布形状没有可测量的影响。因此，虽然电子温度分布明显受到限制，但电流分布却没有。
Electron heat transport on TFTR and other tokamaks is several orders of magnitude larger than neoclassical calculations predict. Despite considerable effort, there is still no clear theoretical understanding of this anomalous transport. The electron temperature profile, Te(r), has shown a marked consistency on many machines for a wide range of plasma parameters and heating profiles. This could be an important clue as to the process responsible for this enhanced thermal transport. In the first section of the paper the result is presented that TFTR electron temperature profile shapes are even more constrained than previous models of profile consistency suggested. The profile shapes, Te(r)/Te(a/2), are found to be invariant (for r > 0.4 a) for a wide range of parameters, including q(a). In the second section, an experiment is discussed which uses a fast current ramp to transiently decouple the current density profile, J(r), and the Te(r) profiles. From this experiment, it has been determined that the J(r) profile can be strongly modified with no measurable effect on the electron temperature profile shape. Thus, while the electron temperature profile is apparently constrained, the current profile is not.
影响因子：
3.3
作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox
通讯作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox