Electron stimulated desorption: a critical review
A critical review of the literature in the field of electron stimulated desorption is presented. The material is covered through December 1975. The literature on electron-induced ion desorption using bombarding electrons with energy less than 200 eV has been reviewed in detail several times. This review, therefore, concentrates on electron-induced desorption of ground state and excited state neutrals and the effect of electron bombarding energy in the energy range above several hundred eV. There is general agreement that ESD involves the direct interaction of the bombarding electron with the adsorbed species. Electronic transitions to anti-bonding modes result in the desorption of neutrals, excited state and ionic species. The cross sections are atomic in nature and vary from 10/sup -16/ cm/sup 2/ to less than 10/sup -20/ cm/sup 2/. The interactions and cross sections are relatively independent of the substrate material. The largest cross sections occur for weakly bound molecular species. Although there is agreement on the qualitative character of the interaction, there is very poor agreement on the quantitative cross section values. Very little information exists at all on direct measurements of neutral desorption and the effect of bombarding electron energy in the energy range above 500 eV. The material on neutral desorption is divided into three parts, namely experiments involving total pressure measurements, partial pressure measurements, and detection of desorbing excited state neutrals. Recommendations regarding data required for the CTR program are discussed.
- Research Organization:
- Wisconsin Univ., Milwaukee (USA)
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- OSTI ID:
- 7332894
- Report Number(s):
- COO-2425-5
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
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ALUMINIUM
BEAMS
BIBLIOGRAPHIES
CHARGED PARTICLES
DESORPTION
DOCUMENT TYPES
ELECTRON BEAMS
ELEMENTS
EMISSION
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 100-1000
FLUIDS
GASES
GLASS
IONS
LEPTON BEAMS
METALS
MOLYBDENUM
NICKEL
PARTICLE BEAMS
PLATINUM
PLATINUM METALS
REFRACTORY METALS
REVIEWS
SORPTIVE PROPERTIES
STIMULATED EMISSION
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TRANSITION ELEMENTS
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360104* -- Metals & Alloys-- Physical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALUMINIUM
BEAMS
BIBLIOGRAPHIES
CHARGED PARTICLES
DESORPTION
DOCUMENT TYPES
ELECTRON BEAMS
ELEMENTS
EMISSION
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 100-1000
FLUIDS
GASES
GLASS
IONS
LEPTON BEAMS
METALS
MOLYBDENUM
NICKEL
PARTICLE BEAMS
PLATINUM
PLATINUM METALS
REFRACTORY METALS
REVIEWS
SORPTIVE PROPERTIES
STIMULATED EMISSION
SURFACE PROPERTIES
TRANSITION ELEMENTS
TUNGSTEN