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  Reabsorption of soft x-ray emission at high x-ray free-electron laser fluences.

Schreck, S., Beye, M., Sellberg, J. A., McQueen, T., Laksmono, H., Kennedy, B., et al. (2014). Reabsorption of soft x-ray emission at high x-ray free-electron laser fluences. Physical Review Letters, 113(15): 153002. doi:10.1103/PhysRevLett.113.153002.

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 Creators:
Schreck, S., Author
Beye, M., Author
Sellberg, J. A., Author
McQueen, T., Author
Laksmono, H., Author
Kennedy, B., Author
Eckert, S., Author
Schlesinger, D., Author
Nordlund, D., Author
Ogasawara, H., Author
Sierra, R. G., Author
Segtnan, V. H., Author
Kubicek, K.1, Author           
Schlotter, W. F., Author
Dakovski, G. L., Author
Moeller, S. P., Author
Bergmann, U., Author
Techert, S.1, Author           
Pettersson, L. G. M., Author
Wernet, P., Author
Bogan, M. J., AuthorHarada, Y., AuthorNilsson, A., AuthorFöhlisch, A., Author more..
Affiliations:
1Research Group of Structural Dynamics of (Bio)chemical Systems, MPI for biophysical chemistry, Max Planck Society, ou_578564              

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 Abstract: We report on oxygen K-edge soft x-ray emission spectroscopy from a liquid water jet at the Linac Coherent Light Source. We observe significant changes in the spectral content when tuning over a wide range of incident x-ray fluences. At high fluences, also the total emission yield decreases. These modifications result from reabsorption of x-ray emission by valence-excited molecules generated by the Auger cascade. Our observations have major implications for future x-ray emission studies at intense x-ray sources. We highlight the importance of the x-ray pulse length with respect to the core-hole lifetime.

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Language(s): eng - English
 Dates: 2014-10-062014-10-10
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.113.153002
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Title: Physical Review Letters
Source Genre: Journal
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Pages: 6 Volume / Issue: 113 (15) Sequence Number: 153002 Start / End Page: - Identifier: -