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Measuring the positron affinities of atoms

Mitroy, Jim and Ryzhikh, G. G. (1999). Measuring the positron affinities of atoms. Journal of Physics B: Atomic, Molecular and Optical Physics,32(15):411-417.

Document type: Journal Article
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Title Measuring the positron affinities of atoms
Author Mitroy, Jim
Ryzhikh, G. G.
Journal Name Journal of Physics B: Atomic, Molecular and Optical Physics
Publication Date 1999
Volume Number 32
Issue Number 15
ISSN 0953 4075   (check CDU catalogue open catalogue search in new window)
Start Page 411
End Page 417
Total Pages 7
Place of Publication Bristol, UK
Publisher IOP Publishing
HERDC Category C2 - Journal Article - Other contributions to refereed journal (internal)
Abstract It is proposed that the binding energies of positrons to a number of atoms be determined by the charge transfer reaction A− +e+ !Ae+ +e−. This reaction can be realized in the laboratory by directing a negative ion beam through a positron trap and measuring positively charged ions downstream. Unique identification of Ae+ is possible when the electron affinity, positron affinity and neutral atom ionization potentials satisfy a few simple identities. This technique could be used to investigate the existence of positron binding for a number of elements such as Si, Fe, Cu, Ge, Ru, Ag, Sn, Sb, Ta, W, Au, Pb and Bi.
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Created: Fri, 12 Sep 2008, 08:35:25 CST by Administrator