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  Ultrabright femtosecond electron sources: perspectives and challenges towards the study of structural dynamics in labile systems

Gao, M., Jean-Ruel, H., Lu, C., Liu, L. C., Marx, A., Cooney, R. R., et al. (2014). Ultrabright femtosecond electron sources: perspectives and challenges towards the study of structural dynamics in labile systems. Proceedings of SPIE, 9198: 91980R. doi:10.1117/12.2062888.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-DCD6-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-196E-4
Genre: Conference Paper

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91980R.pdf (Publisher version), 2MB
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2014
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© Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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https://dx.doi.org/10.1117/12.2062888 (Publisher version)
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 Creators:
Gao, Meng1, 2, 3, Author              
Jean-Ruel, Hubert1, 2, 3, Author              
Lu, C.2, Author
Liu, Lai Chung1, 2, 3, Author              
Marx, Alexander1, 3, Author              
Cooney, R. R.2, Author
Jiang, Yifeng1, 2, 3, Author              
Kassier, Günther1, 2, 3, Author              
Moriena, Gustavo1, 2, 3, Author              
Sciaini, Germán1, 2, 3, Author              
Miller, R. J. Dwayne1, 2, 3, Author              
Affiliations:
1Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
2Departments of Chemistry and Physics, 80 St. George Street, University of Toronto, Toronto, Ontario, M5S 3H6, Canada, ou_persistent22              
3The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany, ou_persistent22              

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Free keywords: Ultrafast electron diffraction; structural dynamics; molecular motion
 Abstract: The advances made in femtosecond electron sources over the last thirty years have been remarkable. In particular, the development of ultrabright femtosecond electron sources has made possible the observation of molecular motion in labile organic materials and it is paving the way towards the study of complex protein systems. The principle of radio frequency (RF) rebunching cavities for the compression of ultrabright electron pulses is presented, alongside with a recent demonstration of its capabilities in capturing the relevant photoinduced dynamics in weakly scattering organic systems. Organic and biological systems can easily decompose or lose crystallinity as a consequence of cumulative heating effects or the formation of side reaction photoproducts. Hence, source brightness plays a crucial role in achieving sufficient signal-to-noise ratio before degradation effects become noticeable on the structural properties of the material. The current brightness of electron sources in addition to the high scattering cross section of keV-MeV electrons have made femtosecond electron diffraction a powerful tool for the study of materials composed by low-Z elements.

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Language(s): eng - English
 Dates: 2014-09-05
 Publication Status: Published online
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Method: Internal
 Identifiers: DOI: 10.1117/12.2062888
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Title: Ultrafast Nonlinear Imaging and Spectroscopy II
Place of Event: San Diego, California, United States
Start-/End Date: 2014-08-17

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Title: Proceedings of SPIE
  Other : Ultrafast Nonlinear Imaging and Spectroscopy II
Source Genre: Journal
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Publ. Info: Bellingham, Washington : SPIE
Pages: - Volume / Issue: 9198 Sequence Number: 91980R Start / End Page: - Identifier: ISSN: 0277-786X
CoNE: /journals/resource/0277-786X