Etude par battements quantiques de l'interaction d'un faisceau d'ions 4He+ et d'une feuille de carbone

We have measured the beam-foil collision-induced alignment of the 3p 1 P, 3p 3 P, 3d 1 D, and 3d 3 D states of He I for He + beam energies between 30 and 1300 keV. The alignment of all four states is found to vary with beam-current density as well as energy. The number of secondary electrons emitted per incident ion, γ, has also been measured as a function of foil temperature and beam energy between 400 and 1400 keV. The rate of change of both alignment and γ with foil temperature exhibits a general correlation. The energy dependence of alignment may be understood in terms of simple impact-excitation collisions. We also discuss our results in terms of the Kupfer-Winter surface electric-field model. The interaction between atoms emerging from the foil and slow secondary electrons is considered.

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Experimental study of the2sand2ppopulations of hydrogen atoms resulting from the interaction of 0.8-MeV/amuH+,H
Clouvas
¹
,
Gaillard
²
,
Poizat
³

et al. 1985
Phys. Rev. A
9
1
2
0
View full text Add to dashboard Cite

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Etude par battements quantiques de l'interaction d'un faisceau d'ions 4He+ et d'une feuille de carbone

Abstract: Etude par battements quantiques de l'interaction d'un faisceau d'ions 4He+ et d'une feuille de carbone

Cited by 3 publications

References 13 publications

Quantum beat study of the He+ beam-carbon foil interaction

Quantum beat study of the He+ beam-carbon foil interaction

Energy dependence of alignment in foil collision-excitedn=3states of He i

Experimental study of the2sand2ppopulations of hydrogen atoms resulting from the interaction of 0.8-MeV/amuH+,H
Clouvas
¹
,
Gaillard
²
,
Poizat
³

et al. 1985
Phys. Rev. A
9
1
2
0
View full text Add to dashboard Cite

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Etude par battements quantiques de l'interaction d'un faisceau d'ions 4He+ et d'une feuille de carbone

Abstract: Etude par battements quantiques de l'interaction d'un faisceau d'ions 4He+ et d'une feuille de carbone

Cited by 3 publications

References 13 publications

Quantum beat study of the He+ beam-carbon foil interaction

Quantum beat study of the He+ beam-carbon foil interaction

Energy dependence of alignment in foil collision-excitedn=3states of He i

Experimental study of the2sand2ppopulations of hydrogen atoms resulting from the interaction of 0.8-MeV/amuH+,HClouvas1, Gaillard2, Poizat3 et al. 1985Phys. Rev. A9120View full textAdd to dashboardCite

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Experimental study of the2sand2ppopulations of hydrogen atoms resulting from the interaction of 0.8-MeV/amuH+,H
Clouvas
¹
,
Gaillard
²
,
Poizat
³

et al. 1985
Phys. Rev. A
9
1
2
0
View full text Add to dashboard Cite