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K.A. Hanold, C.R. Sherwood, M.C. Garner and R.E. Continetti, "Fast-Ion-Beam Photoelectron Spectrometer.", Rev. Sci. Instrum., 66, 5507-5511 (1995). |
| A high collection efficiency fast-ion beam photoelectron spectrometer is described. In a straight time-of-flight mode, the spectrometer collects ~1% of the photoelectrons and achieves an energy resolution (delta) E / E of ~5%. For coincidence experiments requiring greater collection efficiency, a paraboloidal electrostatic mirror is used. The mirror collects ~40% of the photoelectrons while maintaining (delta) E/E <= 35%. In both modes of operation, a time- and position-sensitive electron detector allows conversion of the photoelectron laboratory energy to center-of-mass energy. The fast-ion beam photoelectron spectrometer is used to create mass- and energy-selected neutral molecules which are used in molecular dissociation studies. |