Development of EUV optics for Oxygen ion imagery in the polar wind

我们已经开始了极光光学的发展，以探测极地风中氧离子的散射极紫外光发射(O II)。氢气吸收池和不反射莱曼-α的反射镜将是从地冕中消除莱曼α线的关键。2000年，我们研制了搭载在SS-520-2探空火箭上的XUV极紫外扫描仪。SS-520-2探空火箭于2000年12月4日在斯瓦尔巴群岛火箭实验场发射，在磁层尖点区飞行。为探测极地W333ind和电离层F层的OII发射而设计的XUV扫描仪已经成功运行，尽管XUV扫描仪对OII发射不一定非常敏感。充分的积累时间使我们能够探测到电离层F层和极地风的OII排放。这是首次通过光学遥感拍摄地球周围氧离子分布的二维图像的尝试。

We have started the development of the EUV optics to detect the scattered EUV emission (O II) by the Oxygen ions in the polar wind. Hydrogen absorption cell and the mirror which does not reflect Lyman-α will be the key to eliminate the Lyman α line from the Geocorona. In 2000, we have developed the extreme-ultraviolet scanner XUV boarded on the sounding rocket SS-520-2.The sounding rocket SS-520-2 was launched from the Svalbard Rocket Experiment Site on December 4, 2000, and flew under the magnetospheric cusp region. The XUV scanner designed to detect the OII emission from the polar w333ind and the ionospheric F layer was successfully operated.In spite of the fact that the XUV scanner is not necessarily very sensitive to the OII emission. the sufficient accumulation time enabled us to detect the OII emissions from the ionospheric F layer and the polar wind. This success is the first attempt to take two-dimensional images of the oxygen ion distribution around the earth via the optical remote sensing.