Everhart-Thornley detector

== English == === Etymology === Named after its designers, Thomas E. Everhart and Richard F. M. Thornley. === Noun === Everhart-Thornley detector (plural Everhart-Thornley detectors) A secondary electron and back-scattered electron detector used in scanning electron microscopes. Synonym: (initialism) ETD === Further reading === Everhart-Thornley detector on Wikipedia.Wikipedia