Keywords electrons, magnetic field, electron gun, Helmholtz coils, mass of electron, kinetic energy, deflection, circular motion, helical trajectory, experiment Email us at [email protected] if ...

The high-energy beam interacts with air and hydrocarbons on the ... A vacuum provides the needed insulation to prevent "arching" or jumping of high voltages in the electron gun. The gun itself is ...

The thermionic electron gun can be set from 1-20kV ... The x-ray detector and software enable the collection and manipulation of energy dispersive x-ray spectra as well as element maps and point and ...

The JEOL TEM-F200 is a 200kV S/TEM equipped with a Cold Field Emission Gun for high brightness and a narrow energy spread, supporting high energy resolution electron energy loss spectroscopy (EELS).