Ultrafast dynamics and scattering of protic ionic liquids induced by XFEL pulses.
J Synchrotron Radiat
; 28(Pt 5): 1296-1308, 2021 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-34475279
ABSTRACT
X-rays are routinely used for structural studies through scattering, and femtosecond X-ray lasers can probe ultrafast dynamics. We aim to capture the femtosecond dynamics of liquid samples using simulations and deconstruct the interplay of ionization and atomic motion within the X-ray laser pulse. This deconstruction is resolution dependent, as ionization influences the low momentum transfers through changes in scattering form factors, while atomic motion has a greater effect at high momentum transfers through loss of coherence. Our methodology uses a combination of classical molecular dynamics and plasma simulation on a protic ionic liquid to quantify the contributions to the scattering signal and how these evolve with time during the X-ray laser pulse. Our method is relevant for studies of organic liquids, biomolecules in solution or any low-Z materials at liquid densities that quickly turn into a plasma while probed with X-rays.
Texto completo:
1
Banco de datos:
MEDLINE
Idioma:
En
Revista:
J Synchrotron Radiat
Asunto de la revista:
RADIOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Suecia