Electron lens

Description

An electromagnetic or electrostatic field used to focus and deflect the electron beam through the optical column in an electron microscope. An electromagnet consists of a coil of wire wrapped around a soft iron core that is magnetized only when current flows through the wire. An electrostatic lens is a metal plate that can be positively or negatively charged to attract or repel the beam.

Synonyms and Related Terms

Elektronenlinse (Deut.); lentille électronique (Fr.);

Sources Checked for Data in Record

• ASTM, Standard Terminology of Microscopy, Annual Book of ASTM Standards, Section 14, General Methods and Instrumentation, ASTM, E175, 75-78, May 1982

• Walter C. McCrone, John Gustave Delly, The Particle Atlas, W. McCrone Associates, Chicago, IV, 1972