The Stratospheric Observatory for Infrared Astronomy, SOFIA, is a joint US and German project and will start observations from altitudes up to 45,000 ft in late 2001. The 2.5 m telescope is being developed in Germany while the 747- aircraft modifications and preparation of the observatory's operations center is done by a US consortium. Several research institutions and universities of both countries have started to develop science instruments. The DLR Institute of Space Sensor Technology in Berlin plans on a spectral-photometric camera working in the 20 to 220 $mu@m wavelength range, using doped silicon and germanium extrinsic photoconductors in large, 2D arrays: silicon blocked-impurity band detectors, Ge:Ga and stressed Ge:Ga. While the silicon array will be commercially available, the germanium arrays have to be developed, including their cryogenic multiplexers. Partner institutions in Germany and the US will support the development of the instrument and its observations.
展开▼
机译：红外天文学，索非亚的平流层天文台是美国和德国项目的联合项目，并将在2001年底开始观察到高达45,000英尺的高度。2.5米望远镜正在德国开发，而747飞机修改和制定天文台的修改 运营中心由美国财团完成。 两国的一些研究机构和大学都已开始开发科学文书。 在20至220 $ MU @ M波长范围内工作的柏林的DLR空间传感器技术研究所在20至220 $ MU @ M波长范围内，使用大型2D阵列的掺杂硅和锗外在光电导体：硅块杂质带探测器，GE ：GA和强调GE：GA。 虽然硅阵列将可商购，但必须开发锗阵列，包括它们的低温多路复用器。 德国和美国的合作机构将支持仪器的发展及其观察。
展开▼
