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

Research output: Contribution to journal › Article › peer-review

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
Externally published	Yes

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",

month = may,

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

language = "English",

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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.

UR - https://www.scopus.com/pages/publications/24444458003

U2 - 10.1016/0168-583X(95)00148-4

DO - 10.1016/0168-583X(95)00148-4

M3 - Article

AN - SCOPUS:24444458003

SN - 0168-583X

VL - 98

SP - 367

EP - 370

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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