Electron-Impact Ionization Cross Section in Cesium
- 1 September 1968
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 49 (5), 1995-2002
- https://doi.org/10.1063/1.1670359
Abstract
The total ionization due to the passage of an electron beam in cesium vapor has been measured with a Tate and Smith‐type apparatus. The retarding potential difference method was used in the electron gun to obtain energy resolution better than 0.1 eV. The density of Cs atoms was determined from the Taylor and Langmuir formula and also measured with a surface‐ionization detector. The two methods gave the same density to within ±3% when the apparatus was in thermodynamic equilibrium with the Cs reservoir. The cross section for production of Cs+ has been determined from threshold to 100 eV. For energies above 28 eV, the results agree closely with those of McFarland and Kinney. At threshold the slope of the cross‐section‐vs‐energy curve was measured to be 2.7 Å2/eV.Keywords
This publication has 30 references indexed in Scilit:
- Electron-Hydrogen Ionization: the Asymptotic Form of the Wave Function and the Threshold Behavior of the Cross SectionPhysical Review Letters, 1966
- Cesium Ionization Cross Section from Threshold to 50 eVPhysical Review B, 1966
- Gryziński Electron-Impact Ionization Cross-Section Computations for the Alkali MetalsPhysical Review B, 1965
- Absolute Ionization Cross Sections of the Alkali MetalsPhysical Review B, 1964
- The threshold law for ionizing collisionsProceedings of the Physical Society, 1964
- Electron Path Length in Collision ExperimentsProceedings of the Physical Society, 1963
- Ionization of cesium at surfacesAdvanced Energy Conversion, 1963
- Measurement of Atomic and Molecular Excitation by a Trapped-Electron MethodPhysical Review B, 1958
- Über Absorptionsspektren aus der Anregung innerer ElektronenThe European Physical Journal A, 1934
- The Evaporation of Atoms, Ions and Electrons from Caesium Films on TungstenPhysical Review B, 1933