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Author  |
Reija, A.; Coathup, A.; Alejo, A.; Bembibre, A.; Contreras-Martinez, R.; Peñas, J.; Ruiz, C.; Seimetz, M.; Benlliure, J. |
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Title |
Optimisation of a laser-driven X-ray source operating in air |
Type |
Journal Article |
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Year |
2025 |
Publication |
Optics Express |
Abbreviated Journal |
Opt. Express |
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Volume |
33 |
Issue |
7 |
Pages |
16125-16140 |
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Abstract |
X-ray sources with high photon fluxes and small source sizes have been widely pursued in the last decades. With synchrotron and XFEL facilities being complex, scarce and not easily accessible, laser-driven x-ray sources have emerged as a promising option because of their compactness, high photon yield and micrometric source size. In this work, we present the optimisation of an x-ray source driven by means of 0.8 mJ, 35 fs laser pulses focused on a solid Cu target in air. A detailed characterisation of the main x-ray beam parameters is included. A Cu K alpha flux of 2.3<middle dot>10(9) photons/s has been measured in 2 pi sr. Despite the simplicity of our setup, this flux is competitive with respect to that achieved with vacuum-based sources. A clear non-isotropic distribution of the x-ray continuum has been recorded, differing from the isotropic emission reported in dedicated studies. The beam is emitted within a cone with a semiangle of approximate to 14 degrees, directed primarily along the target normal. Given the achieved flux, this source stands as a competitive alternative to more complex laser-driven x-ray sources operating in vacuum or in a He environment. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement |
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Address |
[Reija, Alicia; Coathup, Andrew; Alejo, Aaron; Bembibre, Adrian; Contreras-Martinez, Ramiro; Penas, Juan] Univ Santiago de Compostela, Inst Galego Fis Altas Enerxias, Santiago De Compostela 15782, Spain, Email: aaron.alejo@usc.es; |
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Publisher |
Optica Publishing Group |
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Language |
English |
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Series Volume |
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Edition |
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ISSN |
1094-4087 |
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Notes |
WOS:001468749800013 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
6618 |
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