Current designs of the next step device rely on access to the H-mode to provide the confinement improvement necessary to reach ignition. In JET, with the installation of a series of divertors of different geometry, it has been possible to test th dependence on divertor geometry of the power required to attain H-mode conditios. It is found that the H-mode threshold depends on divertor geometry. This dependence is not included in present H-mode scaling laws. HEre we report the results of a series of such experiments on the JET Mark I, Mark IIA, Mark IIAP and Mark IIGB divertors.
展开▼
机译：下一步设备的当前设计依赖于进入H模式，以提供达到点火所必需的密封性改进。在JET中，通过安装一系列不同几何形状的分压器，可以测试获得H模式条件所需功率对分压器几何形状的依赖性。发现H模式阈值取决于偏滤器的几何形状。当前的H模式缩放定律不包括这种依赖性。在此，我们报告了在JET Mark I，Mark IIA，Mark IIAP和Mark IIGB偏滤器上进行的一系列此类实验的结果。
展开▼
