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Development of electron-ion coincidence spectroscopy for the study of surface dynamics combined with synchrotron radiation
- Source :
- Review of Scientific Instruments. 68:1703-1707
- Publication Year :
- 1997
- Publisher :
- AIP Publishing, 1997.
-
Abstract
- Energy-selected electron-ion coincidence spectroscopy for the study of surface dynamics combined with synchrotron radiation (SR) was developed. The equipment consists of an electron gun, a cylindrical mirror analyzer (CMA), and a time-of-flight (TOF) ion mass spectrometer. A sample surface was excited by SR, and energy of the emitted electron was analyzed by the CMA. The TOF spectrum of the desorbed ions was measured taking the energy-analyzed electron signal as the starting trigger. The ions coincidently desorbed with the electron gave a characteristic peak in the TOF spectrum. The apparatus was evaluated on the basis of photoelectron–photoion coincidence (PEPICO) and Auger electron–photoion coincidence (AEPICO) measurements of H2O condensed on gold foil. The results demonstrate that PEPICO and AEPICO combined with SR are powerful methods for investigating the ion desorption induced by core-level excitations.
Details
- ISSN :
- 10897623 and 00346748
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Review of Scientific Instruments
- Accession number :
- edsair.doi...........5e9ed44966f1496b95c009b26b0e5768
- Full Text :
- https://doi.org/10.1063/1.1147978