Browsing by Author "Barthelmess, M."

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    Simple convergent-nozzle aerosol injector for single-particle diffractive imaging with X-ray free-electron lasers
    (Melville, NY : AIP Publishing LLC, 2015) Kirian, R. A.; Awel, S.; Eckerskorn, N.; Fleckenstein, H.; Wiedorn, M.; Adriano, L.; Bajt, S.; Barthelmess, M.; Bean, R.; Beyerlein, K. R.; Chavas, L. M. G.; Domaracky, M.; Heymann, M.; Horke, D. A.; Knoska, J.; Metz, M.; Morgan, A.; Oberthuer, D.; Roth, N.; Sato, T.; Xavier, P. L.; Yefanov, O.; Rode, A. V.; Küpper, J.; Chapman, H. N.
    A major challenge in high-resolution x-ray free-electron laser-based coherent diffractive imaging is the development of aerosol injectors that can efficiently deliver particles to the peak intensity of the focused X-ray beam. Here, we consider the use of a simple convergent-orifice nozzle for producing tightly focused beams of particles. Through optical imaging we show that 0.5 μm particles can be focused to a full-width at half maximum diameter of 4.2 μm, and we demonstrate the use of such a nozzle for injecting viruses into a micro-focused soft-X-ray FEL beam.