Dynamics of gas-filled hohlraums

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In order to prevent high-Z plasma from filling in the hohlraum in indirect drive experiments, a low-Z material, or tamper is introduced into the hohlraum. This material, when fully ionized is typically less than one-tenth of the critical density for the laser light used to illuminate the hohlraum. This tamper absorbs little of the laser light, thus allowing most of the laser energy to be absorbed in the high-Z material. However, the pressure associated with this tamper is sufficient to keep the hohlraum wall material from moving a significant distance into the interior of the hohlraum. In this paper the ... continued below

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7 p.

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Orzechowski, T.J.; Kauffman, R.L. & Kirkwood, R.K. April 24, 1995.

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In order to prevent high-Z plasma from filling in the hohlraum in indirect drive experiments, a low-Z material, or tamper is introduced into the hohlraum. This material, when fully ionized is typically less than one-tenth of the critical density for the laser light used to illuminate the hohlraum. This tamper absorbs little of the laser light, thus allowing most of the laser energy to be absorbed in the high-Z material. However, the pressure associated with this tamper is sufficient to keep the hohlraum wall material from moving a significant distance into the interior of the hohlraum. In this paper the authors discuss measurements of the motion of the interface between the tamper and the high-Z hohlraum material. They also present measurements of the effect the tamper has on the hohlraum temperature.

Physical Description

7 p.

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INIS; OSTI as DE95015415

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  • 12. international conference on laser interaction and related plasma phenomena, Osaka (Japan), 24-28 Apr 1995

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  • Other: DE95015415
  • Report No.: UCRL-JC--119372
  • Report No.: CONF-950476--7
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 100119
  • Archival Resource Key: ark:/67531/metadc620815

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Office of Scientific & Technical Information Technical Reports

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  • April 24, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 18, 2016, 12:34 p.m.

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Orzechowski, T.J.; Kauffman, R.L. & Kirkwood, R.K. Dynamics of gas-filled hohlraums, article, April 24, 1995; California. (digital.library.unt.edu/ark:/67531/metadc620815/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.