Phys. Rev. Lett. 93, 043402 (2004) [4 pages]Small Rare-Gas Clusters in Soft X-Ray PulsesReceived 23 October 2003; published 21 July 2004 We develop a microscopic model for the interaction of small rare-gas clusters with soft x-ray radiation from a free electron laser. It is shown that, while the overall charging of the clusters is rather low, unexpectedly high atomic charge states can arise due to charge imbalances inside the cluster. These findings are explained by an increased absorption via inverse bremsstrahlung due to high intermediate charge states and by a nonhomogenous charge distribution inside the cluster. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.043402
DOI:
10.1103/PhysRevLett.93.043402
PACS:
36.40.Gk, 33.80.–b, 42.50.Hz
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