Wide-Band Spectrometers at the Caltech Submillimeter Observatory

加州理工学院亚毫米天文台的宽带光谱仪

• 批准号: 8912705
• 负责人: Thomas Phillips
• 金额: $ 31.66万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-08-15 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8912705&HistoricalAwards=false
• 关键词: Wide; Band; Spectrometers; Caltech; Submillimeter

The Caltech Submillimeter Observatory (CSO) is designed to operate in the 200-900 GHz band. Future high-sensitivity studies of both star-formation regions and galaxies will require a spectral-line detector array. The technological development of most of the required elements, such as detectors and preamplifiers is reasonably well-advanced, but no convenient solution exists for a flexible, wide-band spectrometer with low power-dissipation, volume, cost and high reliability, suitable for replicating to 25 or more elements. This award will support the development of a custom-Very Large Scale Integration (VLSI) correlator of at least 1 GHz bandwidth and 200 independent channels. It will have roughly 10 times the performance of existing designs due to the high packing-density and high speed of the proposed custom-VLSI technology. Most of the correlator components will be on one integrated circuit, and therefore the multi-element replication process will be much simpler and cheaper than with alternative designs. The anticipated volume and power consumption are a factor of 10 less than for the best available alternatives. This factor makes the spectrometer array feasible. This project makes use of the DARPA/NSF MOSIS Facility.

加州理工学院亚毫米波天文台 (CSO) 设计在 200-900 GHz 频段运行。 未来对恒星形成区域和星系的高灵敏度研究将需要谱线探测器阵列。 大多数所需元件（例如探测器和前置放大器）的技术发展相当先进，但对于具有低功耗、体积、成本和高可靠性、适合复制到 25 个或更多元件的灵活、宽带光谱仪，还没有方便的解决方案。 该奖项将支持开发至少 1 GHz 带宽和 200 个独立通道的定制超大规模集成 (VLSI) 相关器。 由于所提出的定制 VLSI 技术的高封装密度和高速度，其性能将是现有设计的大约 10 倍。 大多数相关器组件将位于一个集成电路上，因此多元件复制过程将比替代设计更简单且更便宜。 预期的体积和功耗比最佳可用替代方案小 10 倍。 这个因素使得光谱仪阵列可行。 该项目利用了 DARPA/NSF MOSIS 设施。