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Femtosecond X-ray-induced explosion of C-60 at extreme intensity

Journal article
Authors B. F. Murphy
T. Osipov
Z. Jurek
L. Fang
S. K. Son
M. Mucke
John H. D. Eland
Vitali Zhaunerchyk
Raimund Feifel
L. Avaldi
P. Bolognesi
C. Bostedt
J. D. Bozek
J. Grilj
M. Guehr
L. J. Frasinski
J. Glownia
D. T. Ha
K. Hoffmann
E. Kukk
B. K. McFarland
C. Miron
E. Sistrunk
Richard J. Squibb
K. Ueda
R. Santra
N. Berrah
Published in Nature Communications
Volume 5
Pages artikel nr 4281
ISSN 2041-1723
Publication year 2014
Published at Department of Physics (GU)
Pages artikel nr 4281
Language en
Links dx.doi.org/10.1038/ncomms5281
https://gup.ub.gu.se/file/181085
Keywords FREE-ELECTRON-LASER, RADIATION-DAMAGE, PULSES, DYNAMICS, CRYSTALLOGRAPHY, IONIZATION, EXCITATION, ATOMS
Subject categories Physical Sciences

Abstract

Understanding molecular femtosecond dynamics under intense X-ray exposure is critical to progress in biomolecular imaging and matter under extreme conditions. Imaging viruses and proteins at an atomic spatial scale and on the time scale of atomic motion requires rigorous, quantitative understanding of dynamical effects of intense X-ray exposure. Here we present an experimental and theoretical study of C-60 molecules interacting with intense X-ray pulses from a free-electron laser, revealing the influence of processes not previously reported. Our work illustrates the successful use of classical mechanics to describe all moving particles in C-60, an approach that scales well to larger systems, for example, biomolecules. Comparisons of the model with experimental data on C-60 ion fragmentation show excellent agreement under a variety of laser conditions. The results indicate that this modelling is applicable for X-ray interactions with any extended system, even at higher X-ray dose rates expected with future light sources.

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