The use of an intermediate wavelength laser for alignment to inertial confinement fusion targets

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The conceptual design of the National Ignition Facility (NIF) 192 beam laser incorporates a low-power alignment beam injected in the pinhole plane of the final spatial filter with a wave length intermediate between the 1053 mn laser output and the 351 mn frequency-converted beam that illuminates the target Choosing the specific wavelength for which the spatial filter plane is reimaged in the same target chamber plane as the frequency-converted main laser pulse, achieves optimum accuracy without the need for additional means to insure precise overlap between the two beams. Insertion of the alignment beam after the last laser amplifier also ... continued below

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6 p.

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English, R.E. Jr.; Seppala, L.G.; Vann, C.S. & Bliss, E.S. September 21, 1995.

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Description

The conceptual design of the National Ignition Facility (NIF) 192 beam laser incorporates a low-power alignment beam injected in the pinhole plane of the final spatial filter with a wave length intermediate between the 1053 mn laser output and the 351 mn frequency-converted beam that illuminates the target Choosing the specific wavelength for which the spatial filter plane is reimaged in the same target chamber plane as the frequency-converted main laser pulse, achieves optimum accuracy without the need for additional means to insure precise overlap between the two beams. Insertion of the alignment beam after the last laser amplifier also allows alignment to the target while the amplifiers are still cooling from a previous shot.

Physical Description

6 p.

Notes

INIS; OSTI as DE96002646

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  • 1. annual solid-state lasers for application to inertial confinement fusion meeting, Monterey, CA (United States), 30 May - 2 Jun 1995

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  • Other: DE96002646
  • Report No.: UCRL-JC--120509
  • Report No.: CONF-9505264--33
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 152665
  • Archival Resource Key: ark:/67531/metadc620090

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  • September 21, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 18, 2016, 11:05 a.m.

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English, R.E. Jr.; Seppala, L.G.; Vann, C.S. & Bliss, E.S. The use of an intermediate wavelength laser for alignment to inertial confinement fusion targets, article, September 21, 1995; California. (digital.library.unt.edu/ark:/67531/metadc620090/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.