Laser-Based Data Acquisition In Gas Centrifuge Environments Using Optical Fibers

M. R. Cates; S. W. Allison; B. Marshall; T. J. Davies; L. A. Franks; M. A. Nelson; B. W. Noel

doi:10.1117/12.944905

15 October 1984 Laser-Based Data Acquisition In Gas Centrifuge Environments Using Optical Fibers

M. R. Cates, S. W. Allison, B. Marshall, T. J. Davies, L. A. Franks, M. A. Nelson, B. W. Noel

Proceedings Volume 0506, Fiber Optics in Adverse Environments II; (1984) https://doi.org/10.1117/12.944905
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

The operating environment of gas centrifuges poses three basic experimental problems: rotating reference frame, corrosive effects of UF6 gas, and vacuum coupling. Diagnostic experiments in this environment effectively use fiber optics as laser transport systems and data extraction channels. Access to the interior of rotating centrifuges is only from a central nonrotating column assembly. Optical paths are often long and difficult to measure in static conditions with precision necessary in operating conditions. Residual traces of HF gas, from UF6, damage exposed optical components over time. Diagnostic measurements requiring pulsed laser sources and analysis of fluorescence emissions, both from UF6 gas and from temperature-sensitive phosphor are described, with emphasis on optical fiber components and experimental design configurations. The studies were done at Oak Ridge Gaseous Diffusion Plant through the Centrifuge Physics Department of the Centrifuge Division. The advantages of fiber optics methods include: optical path flexibility, small and adaptable size of components, utility in connection with moveable assemblies, and relative ease of vacuum isolation.

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M. R. Cates, S. W. Allison, B. Marshall, T. J. Davies, L. A. Franks, M. A. Nelson, and B. W. Noel "Laser-Based Data Acquisition In Gas Centrifuge Environments Using Optical Fibers", Proc. SPIE 0506, Fiber Optics in Adverse Environments II, (15 October 1984); https://doi.org/10.1117/12.944905

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