monochromator
monochromator
A device that can monochromate an electron beam. In a 200 kV TEM, the energy spread of the electron beam is about 2 eV for an LaB6 thermionic-emission electron gun, about 0.7 eV for a Schottky type electron gun and about 0.4 eV for a cold type field-emission electron gun. The use of the "monochromator" dramatically decreases the energy spread, down to less than 0.1 eV. Thus, the monochromator improves the energy resolution of EELS. The use of a monochromator in EELS is crucial for investigation of the electronic structures of solids.
Related Term(s)
Term(s) with "monochromator" in the description
Are you a medical professional or personnel engaged in medical care?
No
Please be reminded that these pages are not intended to provide the general public with information about the products.
