Optical designs of reflection and refraction collection optics for a JT-60SA core Thomson scattering system

JT-60SAトムソン散乱計測システムのためのプラズマ中心部計測計測用反射型及び屈折型集光光学系の設計

東條 寛; 波多江 仰紀; 濱野 隆; 佐久間 猛; 伊丹 潔

Tojo, Hiroshi; Hatae, Takaki; Hamano, Takashi; Sakuma, Takeshi; Itami, Kiyoshi

Collection optics for the core measurements in a JT-60SA Thomson scattering have been designed. The collection optics will be installed in a limited space and have a wide field of view and a wide dynamic range. Two types of the optics are therefore suggested: refraction and reflection collection optics. The good optical resolutions for the reflection and refraction types are both sufficient for the requirements about the physics study, i.e. 0.3 mm and 0.6 mm, respectively. The efficiencies are also compared. As a result, good measurement accuracy ( 5%) even in high electron temperature ( 30 keV) can be expected in the refraction type.