ionization potential

The energy required to remove an electron completely from its atom.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ionization potential

(General Physics) the energy usually required to remove an electron from an atom, molecule, or radical, usually measured in electronvolts. Symbol: I Compare electron affinity

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where [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.] the dimensionless parameters [[theta].sub.s] and [[eta].sub.s] represent the reduced binding energy of the electron and the reduced proton energy; a0 is the radius of the first Bohr orbit of the hydrogen atom; [Z.sub.S] = Z-0.3; [I.sub.S] is the binding energy of the S-shell; R = 13.6 eV is the ionisation energy of the hydrogen atom; m and M is the mass of the electron and the proton, respectively; E is the proton energy; the function [F.sub.s]([[eta].sub.s]/[[theta].sup.2.sub.s], [[theta].sub.s] was tabulated in [10].

Design of a source of quasi-monochromatic x-ray radiation on the basis of a proton accelerator, fitted with an X ray-optical system

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