Ultrafast electron diffraction from an ultracold source

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Ultrafast electron diffraction using an ultracold source

The study of structural dynamics of complex macromolecular crystals using electrons requires bunches of sufficient coherence and charge. We present diffraction patterns from graphite, obtained with bunches from an ultracold electron source, based on femtosecond near-threshold photoionization of a laser-cooled atomic gas. By varying the photoionization wavelength, we change the effective source ...

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ژورنال

عنوان ژورنال: Physics Today

سال: 2014

ISSN: 0031-9228,1945-0699

DOI: 10.1063/pt.3.2435