Torr M R, Vitz R C
Utah State University, Department of Physics, Center for Atmospheric & Space Sciences, Logan, Utah 84322, USA.
Appl Opt. 1982 Sep 1;21(17):3080-90. doi: 10.1364/AO.21.003080.
One of the instruments that has been developed to fly on the Space Shuttle is the Imaging Spectrometric Observatory, an array of five imaging spectrometers to cover the 300-12,000-A wavelength range. In this paper we describe the spectrometer designed to operate in the extreme ultraviolet (300-1200 A). The instrument is intended for studies of the thermosphere and magnetosphere and support of various plasma experiments to be performed from the Shuttle. The design is modular so that various components such as gratings and detectors can be changed and optimized for a range of specific studies following the first survey mission. The detector is an intensified 2-D CCD which permits simultaneous spectral and spatial imaging. The spectral multiplexing gives the spectrometer a considerable speed advantage. The instrument has a small field of view (0.65 degrees ) and is thus capable of obtaining much needed scale height information on the atmospheric EUV emissions. Operating from the Shuttle, global and temporal coverage will be obtained, and the EUV data will be enhanced by the simultaneously acquired UV, visible, and near-IR observations.
已研发出的用于搭载航天飞机飞行的仪器之一是成像光谱观测台，它由五台成像光谱仪组成，可覆盖300 - 12000埃的波长范围。在本文中，我们描述了设计用于极紫外波段（300 - 1200埃）工作的光谱仪。该仪器旨在用于热层和磁层研究，并为将在航天飞机上进行的各种等离子体实验提供支持。其设计为模块化，以便在首次勘测任务之后，诸如光栅和探测器等各种组件能够针对一系列特定研究进行更换和优化。探测器是一台增强型二维电荷耦合器件，可实现光谱和空间成像同时进行。光谱复用使光谱仪具有显著的速度优势。该仪器的视场较小（0.65度），因此能够获取有关大气极紫外辐射急需的标高信息。从航天飞机上运行，将可获得全球和时间覆盖范围，并且极紫外数据将通过同时获取的紫外、可见光和近红外观测数据得到增强。
