Evaluation d’une méthode d’imagerie X en microfluidique : cas du remplissage de microcanaux en forme de « T »

Alexandre Vabre (1) , Samuel Legoupil (1) , Erwan Manach (2) , Olivier Gal (2) , Stéphane Colin (3) , Sandrine Geoffroy (3) , Anne Marie Gué (4)

1 DISC (CEA, LIST) - Département Imagerie et Simulation pour le Contrôle (CEA, LIST)
2 LOAD (CEA, LIST) - Laboratoire Outils d'Analyse des Données (CEA, LIST)
3 LGMT - Laboratoire de Génie Mécanique de Toulouse
4 LAAS - Laboratoire d'analyse et d'architecture des systèmes

X-rays methods assessment in microfluidics: case of “T” shaped microchannels filling. Fluid flows within «T» or «Y» shaped microchannels are deeply studied in order to develop adapted modeling approaches and experimental techniques. Our technological choice lies on the attenuation measurement of X-ray in matter. The main advantage of this non-intrusive technique is to be implemented on medias opaque to visible light. Moreover, X-rays methods may achieve better spatial resolutions as compared to optical methods because of their much lower wavelength. In order to validate this X-ray method, measurements obtained by this technique are compared with direct measurements carried out on similar microchannels. Finally, experimental results are compared with a theoretical model.

Mots clés: ionizing radiation; radioactivity; X-rays; microfluidics; T-shaped microchannels; Y-shaped microchannels; spectrometry; instrumentation; nuclear instrumentation; attenuation

Domaines: Physique Nucléaire Expérimentale [nucl-ex]; Milieux fluides et réactifs; Modélisation et simulation

Alexandre Vabre, Samuel Legoupil, Erwan Manach, Olivier Gal, Stéphane Colin, et al.. Evaluation d’une méthode d’imagerie X en microfluidique : cas du remplissage de microcanaux en forme de « T ». La Houille Blanche - Revue internationale de l'eau, 2006, 5, pp.33 - 39. ⟨10.1051/lhb:2006082⟩. ⟨hal-01882154⟩