Differential Cross Sections and Cross-Section Ratios for the Electron-Impact Excitation of the Neon 2p⁵3s Configuration
Electron-impact differential cross-section measurements for the excitation of the 2p53s configuration of Ne are reported. The Ne cross sections are obtained using experimental differential cross sections for the electron-impact excitation of the n = 2 levels of atomic hydrogen [Khakoo et al., Phys. Rev. A 61, 012701-1 (1999)], and existing experimental helium differential cross-section measurements, as calibration standards. These calibration measurements were made using the method of gas mixtures (Ne and H followed by Ne and He), in which the gas beam profiles of the mixed gases are found to be the same within our experimental errors. We also present results from calculations of these differential cross sections using the R-matrix and unitarized first-order many-body theory, the distorted-wave Born approximation, and relativistic distorted-wave methods. Comparison with available experimental differential cross sections and differential cross-section ratios is also presented.
M. A. Khakoo and J. M. Wrkich and M. L. Larsen and G. Kleiban and I. Kanik and S. Trajmar and M. J. Brunger and P. J. Teubner and A. Crowe and C. J. Fontes and R. E. Clark and V. Zeman and K. Bartschat and D. H. Madison and R. C. Srivastava and A. D. Stauffer, "Differential Cross Sections and Cross-Section Ratios for the Electron-Impact Excitation of the Neon 2p⁵3s Configuration," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 65, Institute of Physics - IOP Publishing, Jun 2002.
The definitive version is available at https://doi.org/10.1103/PhysRevA.65.062711
Keywords and Phrases
Approximation theory; Distortion (waves); Electron scattering; Matrix algebra; Neon; Differential cross sections (DCS); Ground state
International Standard Serial Number (ISSN)
Article - Journal
© 2002 Institute of Physics - IOP Publishing, All rights reserved.
01 Jun 2002