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Through systematic experimental investigations, we analyzed the influence of various parameters on the performance of the x-ray source, focusing on spatial resolution and spectral distribution across a broad energy range. Our findings reveal that a single thin wire, comparable in diameter to the laser focal spot, positioned at 90\u00b0 relative to the laser axis, serves as the optimal backlighter configuration. This configuration maximizes spatial resolution and spectral quality, addressing the geometric limitations inherent in large-scale laser facilities. The results provide a robust foundation for designing HRXR experiments, enabling more precise and reliable imaging of high-energy-density plasmas.<\/jats:p>","DOI":"10.1063\/5.0323034","type":"journal-article","created":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T12:45:11Z","timestamp":1790945111000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Characterization and optimization of a laser-produced x-ray source for x-ray radiography"],"prefix":"10.1063","volume":"97","author":[{"given":"Y.","family":"Benkadoum","sequence":"first","affiliation":[{"name":"LULI - CNRS, CEA, Sorbonne Universit\u00e9s, Ecole Polytechnique, Institut Polytechnique de Paris 1 , F-91120 Palaiseau Cedex,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8774-8860","authenticated-orcid":false,"given":"E.","family":"Filippov","sequence":"additional","affiliation":[{"name":"2 Extreme Light Infrastructure - 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