Liang T, Tobias B, Kong X, Domier C W, Luhmann N C, Lee W, Yun G S, Park H K
University of California at Davis, Davis, California 95616, USA.
Rev Sci Instrum. 2010 Oct;81(10):10D909. doi: 10.1063/1.3478637.
The installation of a new electron cyclotron emission imaging diagnostic for the Korea Superconducting Tokamak Advanced Research (KSTAR) is underway, making use of a unique optical port cassette design, which allows placement of refractive elements inside the cryostat region without adverse effects. The result is unprecedented window access for the implementation of a state of the art imaging diagnostic. A dual-array optical design has been developed, capable of simultaneously imaging the high and low field sides of the plasma with independent features of focal plane translation, vertical zoom, and radial channel spacing. The number of translating optics has been minimized by making use of a zoom lens triplet and parabolic plasma facing lens for maximum channel uniformity over a continuous vertical zoom range of 3:1. The simulated performance of this design is presented along with preliminary laboratory characterization data.
韩国超导托卡马克先进研究装置（KSTAR）正在安装一种新型电子回旋辐射成像诊断设备，该设备采用了独特的光学端口盒式设计，这种设计允许在低温恒温器区域内放置折射元件而不会产生不利影响。其结果是为实施先进的成像诊断提供了前所未有的窗口通道。已经开发出一种双阵列光学设计，能够同时对等离子体的高场侧和低场侧进行成像，并具有焦平面平移、垂直变焦和径向通道间距等独立特性。通过使用变焦透镜三联体和面向等离子体的抛物面透镜，将平移光学元件的数量减至最少，以便在3:1的连续垂直变焦范围内实现最大的通道均匀性。本文展示了该设计的模拟性能以及初步的实验室表征数据。
