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Issue 27, 2012
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Limitations of high-intensity soft X-ray laser fields for the characterisation of water chemistry: Coulomb explosion of the octamer water cluster

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Abstract

In this work, the Coulomb explosion of the octamer water cluster has been studied employing a theoretical approach. Instead of the usual methodology that makes use of classical molecular dynamics, time-dependent density functional theory has been applied to tackle the problem. This method explicitly accounts for the laser field and thus does not impose any constraint on the interaction between the laser pulse and the cluster. We focus on the effects of energetic changes in the system under high-intensity soft X-ray laser pulses. The motions of the ions and their velocities during this process show significant differences for the three applied laser intensities (1014, 1015 and 1016 W cm−2). Very strong soft X-ray free electron laser (FEL) pulses must be short to allow for investigations of ultra-fast wet chemistry, according to the principle of collect and destroy.

Graphical abstract: Limitations of high-intensity soft X-ray laser fields for the characterisation of water chemistry: Coulomb explosion of the octamer water cluster

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Publication details

The article was received on 26 Feb 2012, accepted on 25 Apr 2012 and first published on 08 Jun 2012


Article type: Paper
DOI: 10.1039/C2CP40598A
Phys. Chem. Chem. Phys., 2012,14, 9606-9614

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    Limitations of high-intensity soft X-ray laser fields for the characterisation of water chemistry: Coulomb explosion of the octamer water cluster

    A. Debnarova, S. Techert and S. Schmatz, Phys. Chem. Chem. Phys., 2012, 14, 9606
    DOI: 10.1039/C2CP40598A

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