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Double ionisation of noble gases.II Formation by photon impact.
KTH, School of Engineering Sciences (SCI), Physics.ORCID iD: 0000-0001-7389-5501
1976 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 13, 1748-1755 p.Article in journal (Refereed) Published
Abstract [en]

Using synchrotron radiation and a new two-grating monochromator to remove higher-order components, the relative intensities of double-photoionization transitions have been measured in helium, neon, and argon between 70 and 200 eV by ion spectrometry. Extensive tests of a new ion spectrometer were undertaken to eliminate any charge discrimination for the ions. These new results resolve discrepancies existing between previous experimental data and favor, in general, the earliest results of

Carlson for photon energies higher than 100 eV. For helium and neon they are in good qualitative agreement

with theoretical calculations that include electron-electron correlations. In particular they agree very well with

the many-body perturbation-theory approach of Chang and Poe in the case of neon.

Place, publisher, year, edition, pages
AIP, 1976. Vol. 13, 1748-1755 p.
National Category
Natural Sciences
Research subject
URN: urn:nbn:se:kth:diva-182759OAI: diva2:905708


Available from: 2016-02-23 Created: 2016-02-23 Last updated: 2016-02-24Bibliographically approved

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