Electron scattering spectroscopy
- 1 July 1973
- journal article
- research article
- Published by Taylor & Francis in Contemporary Physics
- Vol. 14 (4), 357-387
- https://doi.org/10.1080/00107517308210760
Abstract
In electron scattering spectroscopy, atomic and molecular energy levels are studied by accurate measurement of the flux of non-relativistic energy-monochromated electrons scattered in angle with analysed energy loss. The measurements are expressed using the Bethe and Born approximations in terms of generalized oscillator strengths, which can be calculated from known wave-functions, and which serve as a sensitive test of the quality of wave-functions. Total as well as differential crsss-sections are useful in this respect. Energy loss spectra can also be measured at the threshold of excitation. Low impact energy (1–20 eV) spectra show up the existence of resonances, or compound states of electron and atom or molecule, appearing as structure in the cross-section functions. Spectroscopic constants and assignments of these resonances can be obtained from differential cross-sections for excitation of available channels. The electric and magnetic deflection techniques for the high-resolution momentum monochromation and analysis of non-relativistic electrons are also discussed.Keywords
This publication has 90 references indexed in Scilit:
- Generalized Oscillator Strengths of the Helium Atom. III. Transitions from the Ground State to theandStatesPhysical Review B, 1969
- Die differentiellen Anregungsfunktionen dern+2-Zustände von HeliumThe European Physical Journal A, 1968
- Configuration Interaction and Absorption Spectra of GasesPhysical Review B, 1966
- Das Auflösungsvermögen des elektrostatisch-magnetischen Energieanalysators für schnelle ElektronenThe European Physical Journal A, 1964
- Excitation processes in heliumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1960
- AN IMPROVED ELECTROSTATIC ELECTRON SELECTORCanadian Journal of Physics, 1960
- Ionization Probability Curves for Krypton and Xenon near ThresholdPhysical Review B, 1953
- Steigerung des Auflösungsvermögens der magnetischen Halbkreismethode zur Geschwindigkeitsanalyse von KathodenstrahlenThe European Physical Journal A, 1939
- The inelastic scattering of slow electrons in gases.—IIIProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1933
- Inelastic electron scattering in gases.—IProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1932