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首页> 外文会议>EUV and X-ray optics: Synergy between laboratory and space II >Innovative multilayer coatings for space solar physics: performances and stability over time Innovative multilayer coatings for space solar physics: performances and stability over time
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Innovative multilayer coatings for space solar physics: performances and stability over time Innovative multilayer coatings for space solar physics: performances and stability over time

机译：用于太空太阳物理学的创新多层涂层：随时间变化的性能和稳定性 r n t r n r n用于太空太阳物理学的创新多层涂层：随时间变化的性能和稳定性

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Different solar mission are in progress and others are foreseen in the next future to study the structure and the dynamics of the Sun and its interaction with the Earth. Different instruments devoted to solar physics are required to have high reflecting MultiLayers (MLs) coatings. For example, the Multi Element Telescope for Imaging and Spectroscopy (METIS) coronograph will fly on board of SOLar Orbiter (SOLO) mission to perform simultaneous observation at 30.4 nm (He - II Lyman - α line), 121.6 nm (H - I Lyman - α line) and in the visible range, therefore its optics will require high performances in a wide spectral region. It should be desirable to reach higher reflectivity as well as long term stability and lifetime, then different candidate coatings will be considered. The Sounding - Rocket Coronographic Experiment (SCORE) is a prototype of METIS equipped with Mg/SiC optics and it has flown on board of a NASA sounding rocket. The Mg/SiC multilayers offer good performances in terms of reflectivity, but the long term stability and the lifetime have been preliminary investigated and there are open problems to be further studied. Besides standard Mo/Si multilayer, a possible alternative is represented by new multilayer structures based on well known Mo/Si stack in which the performances have been improved by superimposing innovative capping layers. Another alternative is represented by a recently developed multilayer based on an Ir/Si material couple. In this paper we review and compare the performances of such multilayer in all the spectral ranges of interest for SOLO
机译：正在执行不同的太阳任务，并计划在未来的将来进行其他任务，以研究太阳的结构和动力学及其与地球的相互作用。需要专门用于太阳物理学的不同仪器来具有高反射多层（MLs）涂层。例如，成像和光谱多元素望远镜（METIS）冠冕仪将在SOLar Orbiter（SOLO）任务上飞行，以在30.4 nm（He-II Lyman-α线），121.6 nm（H-I Lyman）上进行同时观察-α线）并在可见光范围内，因此其光学器件将需要在宽光谱范围内具有高性能。期望达到更高的反射率以及长期稳定性和寿命，然后将考虑不同的候选涂层。探空火箭日冕实验（SCORE）是配备了镁/碳化硅光学元件的METIS原型机，已经搭载在NASA探空火箭上。 Mg / SiC多层膜在反射率方面提供了良好的性能，但是长期稳定性和寿命已被初步研究，并且存在未解决的问题需要进一步研究。除了标准的Mo / Si多层之外，一种可能的替代方案是基于众所周知的Mo / Si叠层的新型多层结构，其中通过叠加创新的覆盖层提高了性能。另一种替代方案是最近开发的基于Ir / Si材料对的多层材料。在本文中，我们回顾并比较了SOLO在所有感兴趣的光谱范围内此类多层膜的性能。

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