Speaker
Description
Given its relevance to biological systems and chemical synthesis, the radiolysis of water has been studied extensively in the past. Unlike previous studies, however, in this work, we study the ultrafast response of liquid water at elevated pressures between 50 and 225 bar. Surprisingly, when subject to intense X-ray radiation at 10 keV, the water molecules are observed to form a new long-range structured response between Q = 0.1 - 0.2 inverse Angstrom. The response is short-lived, spanning only 2.2 ps, and has not been previously unaccounted for. At small length scales, a heating effect is seen to dominate the signal. This talk will discuss the interpretation of these experimental results, which were conducted at the SPring-8 user facility using the SACLA X-ray Free Electron Laser (XFEL).
| I plan to submit also conference proceedings | No |
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