Comparison of the uniformity of soft and hard x-ray emissions from gold foils irradiated by OMEGA laser beams

John F. Seely; Glenn E. Holland; Thomas R. Boehly; G. Pien; David K. Bradley

doi:10.1117/12.279422

14 October 1997 Comparison of the uniformity of soft and hard x-ray emissions from gold foils irradiated by OMEGA laser beams

John F. Seely, Glenn E. Holland, Thomas R. Boehly, G. Pien, David K. Bradley

Author Affiliations +

Proceedings Volume 3157, Applications of X Rays Generated from Lasers and Other Bright Sources; (1997) https://doi.org/10.1117/12.279422
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A comparison of the uniformity of the soft and hard x-ray emissions from planar gold foils irradiated by OMEGA laser beams has been performed. A normal-incidence microscope with two multilayer coated mirrors formed 2D images at a wavelength of 48.3 angstroms (257 eV energy). The X5.8 magnified images were recorded by a gated framing camera at various times during the 3 nsec laser pulse. A pinhole camera imaged the x-ray emission in the energy range > 2 keV. On a spatial scale of 10 micrometers , it was found that the soft x-ray images at 257 eV were quite uniform and featureless. In contrast, the hard x-ray images in the energy range > 2 keV were highly nonuniform with numerous features of size 100 - 150 micrometers .

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John F. Seely, Glenn E. Holland, Thomas R. Boehly, G. Pien, and David K. Bradley "Comparison of the uniformity of soft and hard x-ray emissions from gold foils irradiated by OMEGA laser beams", Proc. SPIE 3157, Applications of X Rays Generated from Lasers and Other Bright Sources, (14 October 1997); https://doi.org/10.1117/12.279422

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