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Differential cross sections and cross-section ratios for the electron-impact excitation of the neon 2p(5)3s configuration

Lookup NU author(s): Emeritus Professor Albert Crowe

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Abstract

Electron-impact differential cross-section measurements for the excitation of the 2p(5)3s 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 , 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.

Publication metadata

Author(s): Crowe A; Khakoo MA; Wrkich J; Larsen M; Kleiban G; Kanik I; Trajmar S; Brunger MJ; Teubner PJO; Fontes CJ; Clark REH; Zeman V; Bartschat K; Madison DH; Srivastava R; Stauffer AD

Publication type: Article

Publication status: Published

Journal: Physical Review A

Year: 2002

Volume: 65

Issue: 6

ISSN (print): 0556-2791

ISSN (electronic):

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevA.65.062711

DOI: 10.1103/PhysRevA.65.062711

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