site interrogation_point Interrogation point in BD FACS Calibur John Quinn Point within the fluidic subsystem at which the laser intersects the stream, illuminating the cells where they emit their fluorescence and scatter the light. The laser irradiates the cell at the interrogation point. http://www.flocyte.com/FRTP/Resources/flow_cytometry_glossary.htm, 2007-05-11 interrogation_point metadata incomplete