ion detector Frank Gibson An ion detector is a device that measures and records the charge induced or current produced when an ion passes by or hits a surface. Example: In a scanning instrument the signal produced in the detector during the course of the scan versus where the instrument is in the scan (at what m/Q) will produce a mass spectrum, a record of ions as a function of m/Q. http://en.wikipedia.org/wiki/Mass_spectrometry#Detector ion detector The ion detector of the Voyager-DE(tm) STR Biospectrometry Workstation measurement device ready for release