Pulsed photodetachment microscopy and the electron affinity of iodine

2009/05/26 by Ramón J. Peláez, Christophe Blondel, C. Delsart +1 · 7 citations
Physics and Astronomy · Materials Science · Chemistry · #Nuclear Physics and Applications #Electron and X-Ray Spectroscopy Techniques #Mass Spectrometry Techniques and Applications #Photoelectric effect #Electron microscope #Microscopy #Iodine #Ion #X-ray photoelectron spectroscopy #Materials science #Electron #Laser #Optics #Chemistry #Analytical Chemistry (journal) #Optoelectronics #Physics #Nuclear magnetic resonance

paper · doi:10.1088/0953-4075/42/12/125001

openalex publication_date 2009/05/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

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.

Citations

• On the fine structure photodetachment intensities using the irreducible tensorial expression of second quantization operators
• Photodetachment microscopy of the P, Q, and R branches of the OH−(v=0) to OH(v=0) detachment threshold
• High precision measurement of the 32SH electron affinity by laser detachment microscopy
• Role of the ponderomotive potential in above-threshold ionization
• CODATA recommended values of the fundamental physical constants: 2006
• Binding Energies in Atomic Negative Ions: III

Cited by

• Photodetachment microscopy to an excited spectral term and the electron affinity of phosphorus
• Electron affinity of tin measured by photodetachment microscopy
• Intra-cavity photodetachment microscopy and the electron affinity of germanium
• Accurate electron affinity of atomic cerium and excited states of its anion*
• Isotope shift of the electron affinity of carbon measured by photodetachment microscopy
• The electron affinity of astatine
• Electron affinity (data page) [wikipedia]