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New experimental setup for photoelectron spectroscopy on cluster anions

1992; American Institute of Physics; Volume: 63; Issue: 12 Linguagem: Inglês

10.1063/1.1143397

1527-2400

Chia‐Yen Cha, Gerd Ganteför, W. Eberhardt,

Atomic and Molecular Physics

We describe a new experimental setup for photoelectron spectroscopy on mass selected clusters. The recently developed pulsed arc cluster ion source (PACIS) for metal and semiconductor clusters is used as an anion source. The design of the PACIS is optimized for maximum intensity of cluster ion production and a minimum internal temperature of the particles. A simple modification allows vaporization of liquid and low melting point metals. The produced anions are mass selected via an inline time-of-flight setup with the option of using a reflectron for increased mass resolution. Photoelectron spectra of the mass selected cluster anions are collected in a ‘‘magnetic bottle’’ type electron spectrometer. First results on copper clusters are presented.