Projectile and Target Ionization in MeV U⁻¹ Collisions of Xe Ions with N2

Author

Ronald E. Olson, Missouri University of Science and TechnologyFollow
R. L. Watson
V. Horvat
K. E. Zaharakis

Abstract

Experimental cross sections are presented for single and multiple electron stripping from Xe¹⁸⁺ projectiles in collisions with N₂ at energies 2.0-9.3 MeV u^-1. The data are compared to 2-30 MeV u^-1 n-body classical trajectory Monte Carlo calculations that explicitly include electrons on both centres. Two-centre electron-electron (e-e) and electron-screened nuclear interactions contribute to the ionization reactions. The computations are in reasonable accord for the total stripping cross section but underestimate the higher stages of multiple electron loss. An energy deposition model gives improved agreement with experiment. The energy dependence of the total stripping cross section is close to E^-0.5. Calculations are also presented for target ionization by Xe⁺, Xe⁸⁺ and Xe¹⁸⁺ at 10 and 20 MeV u^-1. Projectile and target ionization cross sections are found to be comparable. Cross sections for projectile stripping by ionized targets are also calculated and found to be relatively insensitive to the ionization stage of the target. This latter observation is attributed to the compensating contributions between the two-centre e-e and electron-screened nuclear interactions.

Recommended Citation

R. E. Olson et al., "Projectile and Target Ionization in MeV U⁻¹ Collisions of Xe Ions with N2," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 35, no. 8, pp. 1893 - 1907, IOP Publishing, Apr 2002.

The definitive version is available at https://doi.org/10.1088/0953-4075/35/8/308

Department(s)

Physics

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 IOP Publishing, All rights reserved.

Publication Date

28 Apr 2002