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High contract femtosecond laser-driven intense hard X-ray source for imaging application



Lawrence T. Hudson, L.M Chen, W.M. Wang, M. Kando, F Liu, X.X. Lin, J.L Ma, Y.T. Li, S.V. Bulanvo, T. Tajima, Y. Kato, Z.M. Sheng, J Zhang


In this report we address the current situation of laser-driven hard X-ray sources for imaging applications,especially the saturation of X-ray conversion efficiency and the serious impact upon imaging quality.By employing high contrast laser pulses,the conversion efficiency to X-rays from solid foil targets is improved and the structure of the spectrum can be optimized with respect to imaging applications.In addition,bright ArK-shell X-rays with very little continuum background have been generated by irradiating,with an ultra-high contrast laser,a target of Ar gas clusters created by a gas jet. These improvements show great potential for single-shot ultra fast X-ray imaging.
Nuclear Instruments & Methods in Physics Research


laser-driven X-ray source


Hudson, L. , Chen, L. , Wang, W. , Kando, M. , Liu, F. , Lin, X. , Ma, J. , Li, Y. , Bulanvo, S. , Tajima, T. , Kato, Y. , Sheng, Z. and Zhang, J. (2009), High contract femtosecond laser-driven intense hard X-ray source for imaging application, Nuclear Instruments & Methods in Physics Research, [online], (Accessed April 25, 2024)
Created November 18, 2009, Updated February 19, 2017