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arXiv · 1106.4484

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

S. Fourmaux·S. Corde·K. Ta Phuoc·P. Lassonde·G. Lebrun·S. Payeur·F. Martin·S. Sebban·V. Malka·A. Rousse·J. C. Kieffer
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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 microns and produces a synchrotron spectrum with critical energy E_c=12.3 +- 2.5 keV and 10^9 photons per shot in the whole spectrum.

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S. Fourmaux, S. Corde, K. Ta Phuoc, P. Lassonde, G. Lebrun, S. Payeur, F. Martin, S. Sebban, V. Malka, A. Rousse, J. C. Kieffer. 2011-06-22. Single shot phase contrast imaging using laser-produced Betatron x-ray beams. https://doi.org/10.1364/ol.36.002426

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