Electron-electron interaction in projectile ionization

R. Dörner; V. Mergel; R. Ali; U. Buck; C. L. Cocke; K. Froschauer; O. Jagutzki; S. Lencinas; W. E. Meyerhof; S. Nüttgens; R. E. Olson; H. Schmidt-Böcking; L. Spielberger; K. Tökesi; J. Ullrich; M. Unverzagt; W. Wu

doi:10.1016/0168-583X(95)00148-4

Electron-electron interaction in projectile ionization

R. Dörner, V. Mergel, R. Ali, U. Buck, C. L. Cocke, K. Froschauer, O. Jagutzki, S. Lencinas, W. E. Meyerhof, S. Nüttgens, R. E. Olson, H. Schmidt-Böcking, L. Spielberger, K. Tökesi, J. Ullrich, M. Unverzagt, W. Wu

Energy Storage & Conversion

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2 Scopus citations

Abstract

For simultaneous projectile and target ionisation in He⁺He collisions the momentum distribution of the singly and doubly charged recoil ions has been measured. A new cold target recoil ion momentum spectrometer with a momentum resolution of ±0.13 a.u., based on a precooled supersonic He gas jet, has been used. The experimental doubly differential cross section shows two prominent structures which can be attributed to the two center electron-electron interaction and the nucleus-electron interaction. The contribution due to the electron-electron interaction is found to be negligible at 0.5 MeV impact energy and to be dominant at 2 MeV. The two center electron-electron interaction contributes much less to target double than to single ionisation.

Original language	English
Pages (from-to)	367-370
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	98
Issue number	1-4
DOIs	https://doi.org/10.1016/0168-583X(95)00148-4
State	Published - May 3 1995

Funding

The work was financially supportedb y DFG, BMFT and DOE grant 82ER53128. One of us (W.E.M.) was supportedb y NSF grantsI NT-9013087and PHY-9019293. R.A., W.W. and C.L.C. acknowledge financial support from Max Planck Forschungspreiso f the Humboldt foundation which madet heir visit to Frankfurt possible. We are thankful for very helpful discussionsw ith, and for calculations by E.C. Montenegro,W . Fritsch and S. Manson.

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Dörner, R., Mergel, V., Ali, R., Buck, U., Cocke, C. L., Froschauer, K., Jagutzki, O., Lencinas, S., Meyerhof, W. E., Nüttgens, S., Olson, R. E., Schmidt-Böcking, H., Spielberger, L., Tökesi, K., Ullrich, J., Unverzagt, M., & Wu, W. (1995). Electron-electron interaction in projectile ionization. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 98(1-4), 367-370. https://doi.org/10.1016/0168-583X(95)00148-4

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title = "Electron-electron interaction in projectile ionization",

abstract = "For simultaneous projectile and target ionisation in He+He collisions the momentum distribution of the singly and doubly charged recoil ions has been measured. A new cold target recoil ion momentum spectrometer with a momentum resolution of ±0.13 a.u., based on a precooled supersonic He gas jet, has been used. The experimental doubly differential cross section shows two prominent structures which can be attributed to the two center electron-electron interaction and the nucleus-electron interaction. The contribution due to the electron-electron interaction is found to be negligible at 0.5 MeV impact energy and to be dominant at 2 MeV. The two center electron-electron interaction contributes much less to target double than to single ionisation.",

author = "R. D{\"o}rner and V. Mergel and R. Ali and U. Buck and Cocke, {C. L.} and K. Froschauer and O. Jagutzki and S. Lencinas and Meyerhof, {W. E.} and S. N{\"u}ttgens and Olson, {R. E.} and H. Schmidt-B{\"o}cking and L. Spielberger and K. T{\"o}kesi and J. Ullrich and M. Unverzagt and W. Wu",

year = "1995",

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doi = "10.1016/0168-583X(95)00148-4",

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Dörner, R, Mergel, V, Ali, R, Buck, U, Cocke, CL, Froschauer, K, Jagutzki, O, Lencinas, S, Meyerhof, WE, Nüttgens, S, Olson, RE, Schmidt-Böcking, H, Spielberger, L, Tökesi, K, Ullrich, J, Unverzagt, M & Wu, W 1995, 'Electron-electron interaction in projectile ionization', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 98, no. 1-4, pp. 367-370. https://doi.org/10.1016/0168-583X(95)00148-4

TY - JOUR

T1 - Electron-electron interaction in projectile ionization

AU - Dörner, R.

AU - Mergel, V.

AU - Ali, R.

AU - Buck, U.

AU - Cocke, C. L.

AU - Froschauer, K.

AU - Jagutzki, O.

AU - Lencinas, S.

AU - Meyerhof, W. E.

AU - Nüttgens, S.

AU - Olson, R. E.

AU - Schmidt-Böcking, H.

AU - Spielberger, L.

AU - Tökesi, K.

AU - Ullrich, J.

AU - Unverzagt, M.

AU - Wu, W.

PY - 1995/5/3

Y1 - 1995/5/3

N2 - For simultaneous projectile and target ionisation in He+He collisions the momentum distribution of the singly and doubly charged recoil ions has been measured. A new cold target recoil ion momentum spectrometer with a momentum resolution of ±0.13 a.u., based on a precooled supersonic He gas jet, has been used. The experimental doubly differential cross section shows two prominent structures which can be attributed to the two center electron-electron interaction and the nucleus-electron interaction. The contribution due to the electron-electron interaction is found to be negligible at 0.5 MeV impact energy and to be dominant at 2 MeV. The two center electron-electron interaction contributes much less to target double than to single ionisation.

AB - For simultaneous projectile and target ionisation in He+He collisions the momentum distribution of the singly and doubly charged recoil ions has been measured. A new cold target recoil ion momentum spectrometer with a momentum resolution of ±0.13 a.u., based on a precooled supersonic He gas jet, has been used. The experimental doubly differential cross section shows two prominent structures which can be attributed to the two center electron-electron interaction and the nucleus-electron interaction. The contribution due to the electron-electron interaction is found to be negligible at 0.5 MeV impact energy and to be dominant at 2 MeV. The two center electron-electron interaction contributes much less to target double than to single ionisation.

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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 - 1-4

ER -

Electron-electron interaction in projectile ionization

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