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Electron capture and ionization of 33-TeV Pb ions in gas targets

Journal Article · · Physical Review A
We have measured the total cross sections for electron capture by bare Pb{sup 82+} ions and for the ionization of hydrogenlike Pb{sup 81+}(1s) ions at 158GeV/A, {gamma}=168, in Ar, Kr, and Xe gas targets. At this energy, the total capture cross sections are dominated by electron capture from pair production. The capture measurements are compared with the results of several theoretical calculations and with similar measurements made with solid targets. The Pb{sup 81+}(1s) ionization cross sections obtained, which are substantially lower than those measured in solids, agree well with recent calculations that predict saturation at high energies from target screening effects.
Sponsoring Organization:
(US)
OSTI ID:
40206034
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 63; ISSN 1050-2947
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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