Decreased surface tension of water by hard-x-ray irradiation.
We discovered that intense irradiation by hard-x-ray strongly decreases the effects of natural surface tension of water in droplets and capillary tubes. The effect was revealed by direct experimental observations with phase contrast microradiology. A model based on ionization and surface charging explains this so far undetected phenomenon. The effect can impact the results of many experimental techniques based on x rays. This is an example of the largely unexplored effects that can be produced by extreme intense x-ray irradiation-an important issue due to current development of x-ray free-electron-lasers with unprecedented brilliance.
Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Korea.
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Weon
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Je
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Hwu
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Margaritondo