Journal of Synchrotron Radiation

Volume 21, Part 1 (January 2014)

research papers

J. Synchrotron Rad. (2014). 21, 193-202    [ doi:10.1107/S1600577513027951 ]

Thorough small-angle X-ray scattering analysis of the instability of liquid micro-jets in air

B. Marmiroli, F. Cacho-Nerin, B. Sartori, J. Pérez and H. Amenitsch

Abstract: Liquid jets are of interest, both for their industrial relevance and for scientific applications (more important, in particular for X-rays, after the advent of free-electron lasers that require liquid jets as sample carrier). Instability mechanisms have been described theoretically and by numerical simulation, but confirmed by few experimental techniques. In fact, these are mainly based on cameras, which is limited by the imaging resolution, and on light scattering, which is hindered by absorption, reflection, Mie scattering and multiple scattering due to complex air/liquid interfaces during jet break-up. In this communication it is demonstrated that synchrotron small-angle X-ray scattering (SAXS) can give quantitative information on liquid jet dynamics at the nanoscale, by detecting time-dependent morphology and break-up length. Jets ejected from circular tubes of different diameters (100-450 µm) and speeds (0.7-21 m s-1) have been explored to cover the Rayleigh and first wind-induced regimes. Various solvents (water, ethanol, 2-propanol) and their mixtures have been examined. The determination of the liquid jet behaviour becomes essential, as it provides background data in subsequent studies of chemical and biological reactions using SAXS or X-ray diffraction based on synchrotron radiation and free-electron lasers.

Keywords: SAXS; free liquid micro-jet; break-up length; jet instability; refraction; liquid mixtures.

pdfdisplay filedownload file

Portable Document Format (PDF) file
[ doi:10.1107/S1600577513027951/co5047sup1.pdf ]
Graphs and figure captions of supporting information


To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster