High energy collisions of protonated water clusters |
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| Authors: | S Tomita JS Forster P Hvelplund AS Jensen SB Nielsen |
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| Institution: | (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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