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Photonics Leads the Way to a Stellar Alignment

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Charlie Atkinson, Eastman Kodak Co.

Stationed on 18-m towers in New York and California, a one-of-a-kind photonic device has played a crucial role aligning eight cylindrical mirrors and the telescope assembly for the Advanced X-ray Astrophysics Facility, NASA's newest space-based X-ray imaging observatory. Only photonics could provide the measurement accuracy that could ensure the alignment of critical optical components. After an August 1998 launch aboard the Space Shuttle Columbia, the observatory's internal propulsion system will place it in a highly elliptical Earth orbit, where it will capture never-before-seen X-ray...Read full article

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    Published: December 1997
    Glossary
    metrology
    Metrology is the science and practice of measurement. It encompasses the theoretical and practical aspects of measurement, including the development of measurement standards, techniques, and instruments, as well as the application of measurement principles in various fields. The primary objectives of metrology are to ensure accuracy, reliability, and consistency in measurements and to establish traceability to recognized standards. Metrology plays a crucial role in science, industry,...
    FeaturesmetrologySensors & Detectors

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