SOLAR-C EUVST短波长相机的滤光片与挡光板设计
Filter and baffle design for the short-wavelength camera on SOLAR-C EUVST
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中文总结 AI 辅助
本文介绍SOLAR-C EUVST短波长相机的薄膜铝滤光片与挡光板设计，通过前向建模和真空测试评估其对科学性能的影响并抑制杂散光。
中文摘要 AI 辅助
SOLAR-C计划于2020年代末搭载极紫外高通量光谱望远镜（EUVST）发射，将对太阳大气进行极紫外光谱观测，提供前所未有的温度覆盖范围和分辨率。我们展示了短波长相机的光学设计和机械影响，并通过完整的前向建模说明我们的设计选择如何影响科学性能。我们讨论了薄膜铝滤光片及其支撑网的设计和光学影响，包括在光谱和空间维度上的衍射和阴影效应。我们使用自有的傅里叶光学方法和解析建模对此进行分析，并通过模拟太阳大气驱动的前向建模量化科学影响。我们通过真空室测试解决了薄膜滤光片在发射减压过程中的脆弱性问题。我们描述了抑制可见杂散光的杂散光挡光板设计和低散射涂层。
英文摘要
SOLAR-C, which is scheduled to launch in the late 2020s with the Extreme Ultraviolet High-Throughput Spectroscopic Telescope (EUVST), will deliver EUV spectroscopy of the solar atmosphere with unprecedented temperature coverage and resolution. We present the optical design and mechanical impacts for the short-wavelength camera, and how our design choices affect scientific performance using complete forward modelling. We discuss the design and optical impact of the thin-film aluminium filter and supporting mesh, including diffraction and shadowing effects in spectral and spatial dimensions. We analyse this using our own Fourier optics method and analytical modelling, and quantify the scientific impact using forward modelling driven by a simulated solar atmosphere. We address the vulnerability of thin-film filters during launch depressurisation using vacuum chamber testing. We describe the stray-light baffle design and low-scatter coatings which suppress visible stray light.
发表机构
- University College London（伦敦大学学院）
- Mullard Space Science Laboratory（穆拉德空间科学实验室）
- University of Vienna（维也纳大学）
- Institute of Astrophysics（天体物理研究所）
- Montana State University（蒙大拿州立大学）
机构由 AI 辅助整理，请以论文原文为准。
