FLUID FOCUSING FOR POSITIONAL CONTROL OF A SPECIMEN FOR 3-D IMAGING

摘要

A method for loading a sample for imaging by an optical tomography system. A sample volume including at least one microscopic sample and a viscous fluid is coaxially loaded into a sample delivery tube (272). The sample volume is impelled through a focus cell (222) into a capillary tube (274), where the capillary tube (274) has a smaller crossectional area than the sample delivery tube, so that a reduced volume of the at least one microscopic sample and viscous fluid is constrained to a central region within the capillary tube (274).