Increase in velocimeter depth of focus through astigmatism. Revision 1

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Description

Frequently, velocimeter targets are illuminated by a laser beam passing through a hole in a mirror. This mirror is responsible for diverting returning light from a target lens to a velocity interferometer system for any reflector (VISAR). This mirror is often a significant distance from the target lens. Consequently, at certain target focus positions the returning light is strongly vignetted by the hole, causing a loss of signal. The authors find that they can prevent loss of signal and greatly increase the useful depth of focus by attaching a cylindrical lens to the target lens.

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4 p.

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Erskine, D.J. September 26, 1995.

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Description

Frequently, velocimeter targets are illuminated by a laser beam passing through a hole in a mirror. This mirror is responsible for diverting returning light from a target lens to a velocity interferometer system for any reflector (VISAR). This mirror is often a significant distance from the target lens. Consequently, at certain target focus positions the returning light is strongly vignetted by the hole, causing a loss of signal. The authors find that they can prevent loss of signal and greatly increase the useful depth of focus by attaching a cylindrical lens to the target lens.

Physical Description

4 p.

Notes

OSTI as DE96002665

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  • American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995

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  • Other: DE96002665
  • Report No.: UCRL-JC--121042-Rev.1
  • Report No.: CONF-950846--69-Rev.1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 161531
  • Archival Resource Key: ark:/67531/metadc627944

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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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  • September 26, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 16, 2016, 8:02 p.m.

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Erskine, D.J. Increase in velocimeter depth of focus through astigmatism. Revision 1, article, September 26, 1995; California. (digital.library.unt.edu/ark:/67531/metadc627944/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.