The effect of tamper layer on the explosion dynamics of atom clusters
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The behavior of small samples in very short and intense hard X-ray pulses is studied by molecular dynamics type calculations. The main emphasis is put on the effect of various tamper layers about the sample. This is discussed from the point of view of structural imaging of single particles, including not only the distortion of the structure but also the background conditions. A detailed picture is given about the Coulomb explosion, with explanation of the tampering mechanism. It is shown that a thin water layer is efficient in slowing down the distortion of the atomic structure, but it gives a significant contribution to the background.
PACS36.40.-c Atomic and molecular clusters 61.80.-x Physical radiation effects, radiation damage 61.46.-w Structure of nanoscale materials 87.59.-e X-ray imaging
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