A Remotely Deployed Laser System for Viewing/Metrology

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Description

A metrology system is being developed for in-vessel inspection of present day experimental, and next generation fusion reactors. It requires accurate measuring capability to verify sub-millimeter alignment of plasma-facing components in the reactor vessel. A metrology system capable of achieving such accuracy for next generation reactors must be compatible with the vessel environment of high gamma radiation, high vacuum, elevated temperature, and magnetic field. This environment requires that the system must be remotely deployed. A coherent, frequency modulated laser radar system that is capable of correcting for environmental vibration meets these requirements. The metrologyhiewing system consists of a compact laser ... continued below

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12 Pages

Creation Information

Barry, R.E.; Herndon, J.N.; Menon, M.M. & Spampinato, P.T. April 25, 1999.

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Description

A metrology system is being developed for in-vessel inspection of present day experimental, and next generation fusion reactors. It requires accurate measuring capability to verify sub-millimeter alignment of plasma-facing components in the reactor vessel. A metrology system capable of achieving such accuracy for next generation reactors must be compatible with the vessel environment of high gamma radiation, high vacuum, elevated temperature, and magnetic field. This environment requires that the system must be remotely deployed. A coherent, frequency modulated laser radar system that is capable of correcting for environmental vibration meets these requirements. The metrologyhiewing system consists of a compact laser transceiver optics module which is linked through fiber optics to the laser source and imaging units, that are located outside of the harsh environment. The deployment mechanism configured for a next generation reactor was telescopic-mast positioning system. This paper identifies the requirements for the metrology/viewing system having precision ranging and surface mapping capability, and discusses the results of various environmental tests.

Physical Description

12 Pages

Source

  • ANS 8th Topical Meeting on Robotics and Remote Systems, Pittsburgh, PA, April 25-29, 1999

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  • Other: DE00006267
  • Report No.: ORNL/CP-102654
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 6267
  • Archival Resource Key: ark:/67531/metadc693559

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 25, 1999

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • June 10, 2016, 5:24 p.m.

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Barry, R.E.; Herndon, J.N.; Menon, M.M. & Spampinato, P.T. A Remotely Deployed Laser System for Viewing/Metrology, article, April 25, 1999; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc693559/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.