He²⁺ on He: State-Selective, Scattering-Angle-Dependent Capture Cross Sections Measured by Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS)

Author

Volker Mergel
Reinhard Dorner
Joachim Hermann Ullrich
Ottmar Jagutzki
Sergio Lencinas
S. Nuttgens
Lutz Spielberger
Marc Unverzagt
C. Lewis Cocke
Ronald E. Olson, Missouri University of Science and TechnologyFollow
Michael Schulz, Missouri University of Science and TechnologyFollow
Udo Buck
Horst Schmidt-Bocking

Abstract

We present the first state-selective, scattering-angle-dependent cross sections for the reaction 0.25-1 MeV He²⁺ + He → He¹⁺ + He¹⁺. The experiment was performed, using a new generation of recoil ion momentum spectroscopy, which enabled us to determine the three momentum components and the charge state of the recoil ion simultaneously. An absolute momentum resolution of ±0.13 a.u. for the longitudinal and ±0.02 a.u. for the transverse momentum component has been achieved, which is equivalent to a resolution in projectile energy loss of ±5.6 eV and an uncertainty of the projectile scattering angle of better than ±1 μrad.

Recommended Citation

V. Mergel and R. Dorner and J. H. Ullrich and O. Jagutzki and S. Lencinas and S. Nuttgens and L. Spielberger and M. Unverzagt and C. L. Cocke and R. E. Olson and M. Schulz and U. Buck and H. Schmidt-Bocking, "He²⁺ on He: State-Selective, Scattering-Angle-Dependent Capture Cross Sections Measured by Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS)," Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 98, no. 1-4, pp. 593 - 596, Elsevier, May 1995.

The definitive version is available at https://doi.org/10.1016/0168-583X(95)00019-4

Department(s)

Physics

International Standard Serial Number (ISSN)

0168-583X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1995 Elsevier, All rights reserved.

Publication Date

01 May 1995