论文标题
CMB-S4大型望远镜和相机的光学设计概念
Optical design concept of the CMB-S4 large-aperture telescopes and cameras
论文作者
论文摘要
CMB-S4 - 下一代地面宇宙微波背景（CMB）实验 - 将显着提高CMB测量的灵敏度，并提高我们对宇宙起源和演变的理解。 CMB-S4将部署大量望远镜，以毫米波长的数十万探测器进行范围。我们介绍了大孔CMB-S4望远镜的基线光学设计概念，该望远镜由两种光学配置组成：（i）一种新的离轴，三个型号，自由形式的且自由式且抗压设计，以及（ii）现有的昏迷越过昏迷的交叉Dragone设计。我们还概述了硅光学摄像机阵列的光学配置，该光学摄像机将用85个衍射限制的光学管填充焦平面，覆盖高达9度的视野视野，最高$ 1.1 \ $ 1.1 \，\ rm mm $ in In Beanpength。我们描述了实施此处描述的设计家族的计算优化方法，并简要介绍了设计工作的当前状态。
CMB-S4 -- the next-generation ground-based cosmic microwave background (CMB) experiment - will significantly advance the sensitivity of CMB measurements and improve our understanding of the origin and evolution of the universe. CMB-S4 will deploy large-aperture telescopes fielding hundreds of thousands of detectors at millimeter wavelengths. We present the baseline optical design concept of the large-aperture CMB-S4 telescopes, which consists of two optical configurations: (i) a new off-axis, three-mirror, free-form anastigmatic design and (ii) the existing coma-corrected crossed-Dragone design. We also present an overview of the optical configuration of the array of silicon optics cameras that will populate the focal plane with 85 diffraction-limited optics tubes covering up to 9 degrees of field of view, up to $1.1 \, \rm mm$ in wavelength. We describe the computational optimization methods that were put in place to implement the families of designs described here and give a brief update on the current status of the design effort.
