A New Scheme for Stigmatic X-ray Imaging with Large Magnification

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This paper describes a new x-ray scheme for stigmatic imaging. The scheme consists of one convex spherically bent crystal and one concave spherically bent crystal. The radii of curvature and Bragg reflecting lattice planes of the two crystals are properly matched to eliminate the astigmatism, so that the conditions for stigmatic imaging are met for a particular wavelength. The magnification is adjustable and solely a function of the two Bragg angles or angles of incidence. Although the choice of Bragg angles is constrained by the availability of crystals, this is not a severe limitation for the imaging of plasmas, since ... continued below

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Bitter, M.; Delgado-Aprico, L. F.; Pablant, N. A.; Scott, S.; Jones, F.; Beiersdorfer, P. et al. August 8, 2012.

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Description

This paper describes a new x-ray scheme for stigmatic imaging. The scheme consists of one convex spherically bent crystal and one concave spherically bent crystal. The radii of curvature and Bragg reflecting lattice planes of the two crystals are properly matched to eliminate the astigmatism, so that the conditions for stigmatic imaging are met for a particular wavelength. The magnification is adjustable and solely a function of the two Bragg angles or angles of incidence. Although the choice of Bragg angles is constrained by the availability of crystals, this is not a severe limitation for the imaging of plasmas, since a particular wavelength can be selected from the bremsstrahlung continuum. The working principle of this imaging scheme has been verified with visible light. Further tests with x rays are planned for the near future. 2012 American Institute of Physics

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  • Review of Scientific Instruments (2012)

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  • Report No.: PPPL-4791
  • Grant Number: DE-ACO2-09CH11466
  • DOI: 10.2172/1056806 | External Link
  • Office of Scientific & Technical Information Report Number: 1056806
  • Archival Resource Key: ark:/67531/metadc835927

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  • August 8, 2012

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  • May 19, 2016, 9:45 a.m.

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  • July 11, 2016, 3:30 p.m.

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Bitter, M.; Delgado-Aprico, L. F.; Pablant, N. A.; Scott, S.; Jones, F.; Beiersdorfer, P. et al. A New Scheme for Stigmatic X-ray Imaging with Large Magnification, report, August 8, 2012; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc835927/: accessed October 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.