Molecular orientation dependence for projectile-H2 collisions

R. L. Ezell; A. K. Edwards; R. M. Wood; M. W. Dittmann; J. F. Browning; M. A. Mangan

doi:10.1016/0168-583X(91)96029-K

Molecular orientation dependence for projectile-H₂ collisions

R. L. Ezell, A. K. Edwards, R. M. Wood, M. W. Dittmann, J. F. Browning, M. A. Mangan

Reflectometry

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Abstract

The cross sections for double ionization, ionization plus excitation and double excitation of H₂ for equivelocity electrons and protons on H₂ have been measured as a function of orientation of the internuclear axis. The projectile energies are 1.0 and 2.0 MeV/amu. The data can be fit to an expression of the form σ(θ) = σ₀(1 + A cos²θ + B cos⁴θ) where σ₀ is the value of the cross section at 90°. The excited states of H⁺₂ include the 2pσ_u, 2pπ_u and 2sσ_g.

Original language	English
Pages (from-to)	292-294
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	56-57
Issue number	PART 1
DOIs	https://doi.org/10.1016/0168-583X(91)96029-K
State	Published - May 1 1991

Funding

This work was supported by the National Science

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title = "Molecular orientation dependence for projectile-H2 collisions",

abstract = "The cross sections for double ionization, ionization plus excitation and double excitation of H2 for equivelocity electrons and protons on H2 have been measured as a function of orientation of the internuclear axis. The projectile energies are 1.0 and 2.0 MeV/amu. The data can be fit to an expression of the form σ(θ) = σ0(1 + A cos2θ + B cos4θ) where σ0 is the value of the cross section at 90°. The excited states of H+2 include the 2pσu, 2pπu and 2sσg.",

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T1 - Molecular orientation dependence for projectile-H2 collisions

AU - Ezell, R. L.

AU - Edwards, A. K.

AU - Wood, R. M.

AU - Dittmann, M. W.

AU - Browning, J. F.

AU - Mangan, M. A.

PY - 1991/5/1

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N2 - The cross sections for double ionization, ionization plus excitation and double excitation of H2 for equivelocity electrons and protons on H2 have been measured as a function of orientation of the internuclear axis. The projectile energies are 1.0 and 2.0 MeV/amu. The data can be fit to an expression of the form σ(θ) = σ0(1 + A cos2θ + B cos4θ) where σ0 is the value of the cross section at 90°. The excited states of H+2 include the 2pσu, 2pπu and 2sσg.

AB - The cross sections for double ionization, ionization plus excitation and double excitation of H2 for equivelocity electrons and protons on H2 have been measured as a function of orientation of the internuclear axis. The projectile energies are 1.0 and 2.0 MeV/amu. The data can be fit to an expression of the form σ(θ) = σ0(1 + A cos2θ + B cos4θ) where σ0 is the value of the cross section at 90°. The excited states of H+2 include the 2pσu, 2pπu and 2sσg.

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DO - 10.1016/0168-583X(91)96029-K

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SN - 0168-583X

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - PART 1

ER -

Molecular orientation dependence for projectile-H₂ collisions

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