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Journal Articles Optics Letters Year : 2011

Single shot phase contrast imaging using laser-produced Betatron x-ray beams

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Abstract

Development of x-ray phase contrast imaging applications with a laboratory scale source have been limited by the long exposure time needed to obtain one image. We demonstrate, using the Betatron x-ray radiation produced when electrons are accelerated and wiggled in the laser-wakefield cavity, that a high-quality phase contrast image of a complex object (here, a bee), located in air, can be obtained with a single laser shot. The Betatron x-ray source used in this proof of principle experiment has a source diameter of 1.7 μm and produces a synchrotron spectrum with critical energy Ec=12.3±2.5 keV and 109 photons per shot in the whole spectrum.

Dates and versions

hal-01164270 , version 1 (16-06-2015)

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S. Fourmaux, Sébastien Corde, Kim Ta Phuoc, P. Lassonde, G. Lebrun, et al.. Single shot phase contrast imaging using laser-produced Betatron x-ray beams. Optics Letters, 2011, 36 (13), pp. 2426-2428. ⟨10.1364/OL.36.002426⟩. ⟨hal-01164270⟩
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