학술논문
Improved imaging using Mn He-α x rays at OMEGA EP.
Document Type
Article
Author
Source
Subject
*X-rays
*CHARGE coupled devices
*QUARTZ crystals
*SPATIAL resolution
*X-ray imaging
*PHONONIC crystals
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Language
ISSN
0034-6748
Abstract
In this paper, we report on a crystal based x-ray imaging system fielded at the OMEGA EP laser facility. This new system has a pointing accuracy of +/100 μm, a temporal resolution down to 100 ps (depending on backlighter characteristics), variable magnification, and a spatial resolution of 21.9 µm at the object plane at a magnification of 15×. The system is designed to use a crystal along the crystal plane that satisfies the Bragg condition for the x ray of interest. The thin crystal is then bent into a spherical geometry and attached to a glass backing substrate to hold it in the diagnostic, and the x rays are imaged onto a charge coupled device. We report on data acquired with the new Los Alamos National Laboratory supplied spherical quartz crystal to image the Mn He-α 6.15 keV line emission. [ABSTRACT FROM AUTHOR]