NIF Spot Summary

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We are compiling a list of anticipated target spot sizes that are specified by the NIF users groups. This data will be used to anticipate demands for phase plates. The spot size also has an impact on the laser operation. Presently the phase plates are designed to sit in the leo section of the FOA (before the conversion crystals). Intensity modulations produced by the phase plates are nonlinearly proportional to the laser spot size. For spot sizes above 3 mm diameter, the intensity modulations are large enough that the damage threshold for the remainder of the FOA is exceeded. For ... continued below

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10,000 Kilobytes pages

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Young, P.E. April 13, 2000.

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Description

We are compiling a list of anticipated target spot sizes that are specified by the NIF users groups. This data will be used to anticipate demands for phase plates. The spot size also has an impact on the laser operation. Presently the phase plates are designed to sit in the leo section of the FOA (before the conversion crystals). Intensity modulations produced by the phase plates are nonlinearly proportional to the laser spot size. For spot sizes above 3 mm diameter, the intensity modulations are large enough that the damage threshold for the remainder of the FOA is exceeded. For experiments requiring spot diameters larger than 3 ram, it is suggested that the phase plates sit in the 3{omega} section of the FOA. For planning purposes, the cost of the 3{omega} phase plates is presently projected to be more than that of a le0 phase plate due to the use of inclusion-free fused silica as the substrate material, This report is a summary of a meeting that we had on February 16, 2000 in order to catalogue the possible range of requested NIF spot sizes. Copies of the viewgraphs which were presented are also included.

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10,000 Kilobytes pages

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  • Other Information: PBD: 13 Apr 2000

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  • Report No.: UCRL-ID-138931
  • Grant Number: W-7405-Eng-48
  • DOI: 10.2172/793864 | External Link
  • Office of Scientific & Technical Information Report Number: 793864
  • Archival Resource Key: ark:/67531/metadc742492

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  • April 13, 2000

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

Description Last Updated

  • May 6, 2016, 3:36 p.m.

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Young, P.E. NIF Spot Summary, report, April 13, 2000; California. (digital.library.unt.edu/ark:/67531/metadc742492/: accessed June 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.