Cross section for 3s ionization in argon by electron impact
Journal Article
·
· Phys. Rev. A; (United States)
The ionization cross section for 3s electrons in argon has been determined for impact energies between the threshold and 1 keV, by observation of the vacuum-ultraviolet emission lines originating from the 3s3p/sup 6/ /sup 2/S/sub 1/2/..-->..3s/sup 2/3p/sup 5/ /sup 2/P/sub 1/2/,/sub 3/2/ transitions in argon ions produced by electron impact. The cross section of the argon 1067-A resonance line, measured by electron-energy-loss spectroscopy, is adopted as the normalization standard. The maximum of the 3s-ionization cross section is 6.27 x 10/sup -18/ cm/sup 2/ at 46 eV impact energy. A double-peaked structure is demonstrated very clearly in the ionization-function curve. The error in the cross section is estimated to be 21%, including the error in the normalization standard. Comparisons of the present results are made with previous measurements and with theoretical results.
- Research Organization:
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102, Japan
- OSTI ID:
- 6969041
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 38:4; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ARGON IONS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION
ENERGY DEPENDENCE
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FAR ULTRAVIOLET RADIATION
FLUIDS
GASES
INFORMATION
IONIZATION
IONS
NONMETALS
NUMERICAL DATA
PHOTON EMISSION
RADIATIONS
RARE GASES
ULTRAVIOLET RADIATION
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ARGON IONS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION
ENERGY DEPENDENCE
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FAR ULTRAVIOLET RADIATION
FLUIDS
GASES
INFORMATION
IONIZATION
IONS
NONMETALS
NUMERICAL DATA
PHOTON EMISSION
RADIATIONS
RARE GASES
ULTRAVIOLET RADIATION