Triply Differential Studies of Atomic and Molecular Photoionization Using Synchrotron Radiation.
Abstract
Basic studies of photoionization processes in atoms and molecules have been carried out using triply differential (differential in incident wavelength, ejected electron energy, and ejection angle) photoelectron spectroscopy with synthrotron radiation as the excitation source. Measurements have been conducted in the vacuum ultraviolet wavelength range up to H(Nu) about 35 eV on a variety of atomic and molecular systems. Photoelectron branching ratios (partial photoionization cross sections) and photoelectron angular distributions were obtained for all accessible states. Publications on C2N2, SO2, HCN, CH3CN, and BF3 were published or submitted for publication during the last year. The work on BF3 included extensive comparison with theoretical calculations, which revealed unexpected aspects of the dynamics of shape resonances in molecular photoionization. During the last year, the main effort has been placed on completion of a major new instrument for these studies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 03, 1984
- Accession Number
- ADA142834
Entities
People
- A. C. Parr
- J. L. Dehmer
Organizations
- National Institute of Standards and Technology