Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 42, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/42/12/125001
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Funding
- Agence nationale de la recherche [ANR-06-BLAN-0012-01]
- Agence Nationale de la Recherche (ANR) [ANR-06-BLAN-0012] Funding Source: Agence Nationale de la Recherche (ANR)
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Photodetachment microscopy is carried out on a beam of (127)I(-) ions with a nanosecond pulsed laser. The photoelectron interferograms are recorded by means of a digital camera that images the light spots produced by the amplified photoelectrons on a phosphor screen. This is the first implementation of such an optical imaging technique in photodetachment microscopy. Due to their sensitivity to the photoelectron energy, the recorded electron interferograms can be quantitatively analysed to produce a measure of the electron affinity of iodine (e)A((127)I) with an accuracy improved by more than a factor of 2 with respect to the best previous measurement. The result is 2467 287.4(29) m(-1) or 3.059 0463(38) eV.
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