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The crystal was cut along the $10\\bar 11$101\u00af1 planes for a 2d spacing of 0.687 nm, resulting in a Bragg angle of 83.9\u00b0. Apertures in front of the crystal were used to control the astigmatism of the imaging system. The backlit images show a high signal-to-background ratio of &amp;gt;10:1 with backlighter laser energies \u22651.5 kJ at a 10-ps pulse duration and a spatial resolution of better than 20 \u03bcm.<\/jats:p>","DOI":"10.1063\/1.4728096","type":"journal-article","created":{"date-parts":[[2012,6,8]],"date-time":"2012-06-08T12:43:42Z","timestamp":1339159422000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":15,"title":["Soft x-ray backlighting of direct-drive implosions using a spherical crystal imager on OMEGA"],"prefix":"10.1063","volume":"83","author":[{"given":"C.","family":"Stoeckl","sequence":"first","affiliation":[{"name":"University of Rochester Laboratory for Laser Energetics, , Rochester, New York 14623, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. 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