High energy collisions of protonated water clusters |
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| Authors: | S. Tomita J.S. Forster P. Hvelplund A.S. Jensen S.B. Nielsen |
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| Affiliation: | (1) Institute of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark, DK;(2) Department of Engineering Physics, McMaster University, Hamilton, Ontario, Canada L8S 4L7, CA |
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| Abstract: | We have measured attenuation cross sections and fragmentation cross sections for protonated water clusters H(H2O)n + (n = 1 to 100) colliding with noble gas atoms (He and Xe) at a laboratory energy of 50 keV. In collisions with He, a transparency effect in the attenuation cross section was observed. For the case of fragmentation in collisions with Xe, a strong enhancement of small clusters was observed which we attribute to multifragmentation. Received 30 November 2000 |
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| Keywords: | PACS. 36.40.Qv Stability and fragmentation of clusters – 61.46.+w Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals |
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