Microstructures for high-energy x-ray and particle-imaging applications

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Coded imaging techniques using thick, micro-Fresnel zone plates as coded apertures have been used to image x-ray emissions (2-20 keV) and 3.5 MeV Alpha particle emissions from laser driven micro-implosions. Image resolution in these experiments was 3-8 ..mu..m. Extension of this coded imaging capability to higher energy x-rays (approx. 100 keV) and more penetrating charged particles (e.g. approx. 15 MeV protons) requires the fabrication of very thick (50-200 ..mu..m), high aspect ratio (10:1), gold Fresnel zone plates with narrow linewidths (5-25 ..mu..m) for use as coded aperatures. A reactive ion etch technique in oxygen has been used to produce thick ... continued below

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Pages: 18

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Ceglio, N.M.; Stone, G.F. & Hawryluk, A.M. May 1, 1981.

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Description

Coded imaging techniques using thick, micro-Fresnel zone plates as coded apertures have been used to image x-ray emissions (2-20 keV) and 3.5 MeV Alpha particle emissions from laser driven micro-implosions. Image resolution in these experiments was 3-8 ..mu..m. Extension of this coded imaging capability to higher energy x-rays (approx. 100 keV) and more penetrating charged particles (e.g. approx. 15 MeV protons) requires the fabrication of very thick (50-200 ..mu..m), high aspect ratio (10:1), gold Fresnel zone plates with narrow linewidths (5-25 ..mu..m) for use as coded aperatures. A reactive ion etch technique in oxygen has been used to produce thick zone plate patterns in polymer films. The polymer patterns serve as electroplating molds for the subsequent fabrication of the free-standing gold zone plate structures.

Physical Description

Pages: 18

Notes

NTIS, PC A02/MF A01.

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  • 16. symposium on electron ion and photo beam technology, Dallas, TX, USA, 26 May 1981

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  • Other: DE81026531
  • Report No.: UCRL-85506
  • Report No.: CONF-8105103-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 6440002
  • Archival Resource Key: ark:/67531/metadc1205971

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Office of Scientific & Technical Information Technical Reports

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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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  • May 1, 1981

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 11, 2018, 1:15 p.m.

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Ceglio, N.M.; Stone, G.F. & Hawryluk, A.M. Microstructures for high-energy x-ray and particle-imaging applications, article, May 1, 1981; United States. (digital.library.unt.edu/ark:/67531/metadc1205971/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.