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Measuring electron affinities with the photodetachment microscope

  • Centre national de la recherche scientifique

Research output: Contribution to journalArticlepeer-review

77 Citations (Scopus)

Abstract

Photodetachment microscopy, which was originally proposed as a new method for direct measurements of ionization or detachment energies, has been applied for a determination of the electron affinity of oxygen. The electron affinities of [Formula Presented] and [Formula Presented] could be measured separately from a natural sample. The experimental values (obtained as wave numbers, to be multiplied by [Formula Presented] to give energy units) are 11 784.682 (20) and 11 784.612 (29) [Formula Presented], respectively. The measured [Formula Presented] fine structure of [Formula Presented] is 177.085 (27) [Formula Presented]. The observed discrepancy of the electron affinity of oxygen with the value admitted so far, 11 784.648(6) [Formula Presented], is yet unexplained.

Original languageEnglish
Pages (from-to)3809-3815
Number of pages7
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume59
Issue number5
DOIs
Publication statusPublished - 1 Jan 1999

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