A high sensitivity electron momentum spectrometer with two-dimensional detectors and electron momentum distributions of several simple molecules
| Autor: | Yasuo Udagawa, Masahiko Takahashi |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Radiation
Spectrometer Chemistry Momentum transfer Position and momentum space Electron Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Momentum Angular momentum coupling Orbital angular momentum of light Molecular orbital Physical and Theoretical Chemistry Atomic physics Spectroscopy |
| Zdroj: | Journal of Electron Spectroscopy and Related Phenomena. :387-391 |
| ISSN: | 0368-2048 |
| DOI: | 10.1016/j.elspec.2004.02.116 |
| Popis: | Electron momentum spectroscopy (EMS) makes it possible to examine orbital patterns of individual molecular orbitals in momentum space. A new spectrometer for electron–electron coincidence experiments for EMS has been developed to obtain orbital patterns quantitatively. Using a spherical analyzer and position-sensitive two-dimensional detectors combined with fast electronics, simultaneous measurements of energy and angular correlations between the two outgoing electrons can be made. This spectrometer features high sensitivity and an ease of changing impact energies. Details of the apparatus are described and impact energy dependence of electron momentum distributions of the HOMO of H2 and biacetyl are compared. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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