ISSN:
1434-6079
Keywords:
34.00
;
34.70
;
32.80
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Neutralisation processes in 0.15–1.5 keV collisions of H− with Na atoms in the 3s ground state or in the excited 3p state have been investigated by means of time-of-flight analysis of the neutral H atoms produced. The H− - Na(3p) system, investigated here for the first time, is particularly interesting since the entrance channel is embedded in the [H - Na(3s)] +e − continuum, enabling Penning detachment to occur. The measured relative neutralisation cross section ratios σ(3p)/σ(3s) decrease from 3 to 1.6 with increasing energy. Based on earlier published results for σ(3s), σ(3p) total cross sections exceeding 100 Å2 are estimated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01437076
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