A coherent synchrotron X-ray microradiology investigation of bubble and droplet coalescence

Microradiology with coherent X-rays is shown to be very effective in revealing interfaces in multiphase systems and in particular gas bubbles. Its use has been tested in the study of bubble colescence validating the results with a simple theoretical analysis based on mass conservation.

[1]  A Bubble Theorem , 2000, physics/0103015.

[2]  R. Rosenfeld Nature , 2009, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[3]  C. H. Chen,et al.  Electrochemistry: Building on bubbles in metal electrodeposition , 2002, Nature.

[4]  S. Wilkins,et al.  Phase-contrast imaging using polychromatic hard X-rays , 1996, Nature.

[5]  G. Seidel,et al.  Coalescence of viscous liquid drops. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[6]  V. V. Karasev,et al.  Evaluation of surface tension and Tolman length as a function of droplet radius from experimental nucleation rate and supersaturation ratio: Metal vapor homogeneous nucleation , 2006 .

[7]  Daniel Bonn,et al.  Hydrodynamics of droplet coalescence. , 2005, Physical review letters.

[8]  K. Nugent,et al.  Quantitative Phase Imaging Using Hard X Rays. , 1996, Physical review letters.

[9]  J. Je,et al.  International consortium on phase contrast imaging and radiology beamline at the Pohang Light Source , 2004 .

[10]  Hansen,et al.  Dynamic scaling behavior of ballistic coalescence. , 1995, Physical review letters.

[11]  Anthony J. Illingworth,et al.  The formation of rain in convective clouds , 1988, Nature.

[12]  G. Whitesides The origins and the future of microfluidics , 2006, Nature.

[13]  M. Winterhalter,et al.  Stable air bubbles--catch them if you can! , 2006, Angewandte Chemie.

[14]  D. Beebe,et al.  Controlled microfluidic interfaces , 2005, Nature.

[15]  M. Kostoglou,et al.  Bubbles growing in supersaturated solutions at reduced gravity , 2004 .

[16]  P. Cloetens,et al.  Phase objects in synchrotron radiation hard x-ray imaging , 1996 .

[17]  A. Snigirev,et al.  On the possibilities of x-ray phase contrast microimaging by coherent high-energy synchrotron radiation , 1995 .

[18]  John R. Lister,et al.  Coalescence of liquid drops , 1999, Journal of Fluid Mechanics.

[19]  J. C. Chen,et al.  Fast drop movements resulting from the phase change on a gradient surface. , 2001, Science.

[20]  Andreas Manz,et al.  Scaling and the design of miniaturized chemical-analysis systems , 2006, Nature.

[21]  H. Stone,et al.  Coalescence of spreading droplets on a wettable substrate. , 2005, Physical review letters.