LASER ION SOURCES FOR TIME-OF-FLIGHT MASS-SPECTROMETRY

Different selective and non-selective laser induced ion and anion sour ces are presented as well as their combination with time-of-flight mas s spectrometers either of linear or reflectron type. Resonance and non -resonance enhanced laser ionization methods and their features of pho tofragmentation are discussed, in their combination with inlet systems for neutral gases. Laser induced VUV- and electron ionization and las er desorption-postionization are illustrated. Techniques and applicati ons of multiple laser excitation in the ion source and in the space fo cus are discussed to achieve synchronicity of two experiments or secon dary laser excitation. Examples for laser spectroscopic and mass spect rometric applications are given.