Cross section for 3s ionization in argon by electron impact
Creators
- 1. Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102, Japan
Description
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 3s3p62S/sub 1/2/→3s23p52P/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/ cm2 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
Additional details
Publishing Information
- Journal Title
- Phys. Rev., A
- Journal Volume
- 38
- Journal Issue
- 4
- Series
- Phys. Rev., A.
- Journal Page Range
- 1831-1838
- ISSN
- 0556-2791
- CODEN
- PLRAA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19102041
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ARGON; ARGON IONS; CROSS SECTIONS; ELECTRON-ATOM COLLISIONS; ENERGY DEPENDENCE; EXCITED STATES; EXPERIMENTAL DATA; FAR ULTRAVIOLET RADIATION; IONIZATION; PHOTON EMISSION
- Descriptors DEC
- ATOM COLLISIONS; CHARGED PARTICLES; COLLISIONS; DATA; ELECTROMAGNETIC RADIATION; ELECTRON COLLISIONS; ELEMENTS; EMISSION; ENERGY LEVELS; INFORMATION; IONS; NONMETALS; NUMERICAL DATA; RADIATIONS; RARE GASES; ULTRAVIOLET RADIATION