Source:http://linkedlifedata.com/resource/pubmed/id/18764322
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
|
| pubmed:dateCreated |
2008-9-3
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| pubmed:abstractText |
Double photoionization (DPI) of an atom by a single photon is a direct consequence of electron-electron interactions within the atom. We have measured the evolution of the K-shell DPI from threshold up in transition metals by high-resolution x-ray emission spectroscopy of the Kh alpha hypersatellites, photoexcited by monochromatized synchrotron radiation. The measured evolution of the single-to-double photoionization cross-section ratio with excitation energy was found to be universal. Theoretical fits suggest that near threshold DPI is predominantly a semiclassical knockout effect, rather than the purely quantum-mechanical shake-off observed at the infinite photon energy limit.
|
| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jul
|
| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
25
|
| pubmed:volume |
101
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
043001
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| pubmed:year |
2008
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| pubmed:articleTitle |
Intrashell electron-interaction-mediated photoformation of hollow atoms near threshold.
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| pubmed:affiliation |
ESRF, 6 rue Jules Horowitz, B.P. 220, F-38043 Grenoble cedex, France.
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| pubmed:publicationType |
Journal Article
|