Photodissociation of mass-selected ions in a crossed-beam setup with a pulsed excimer laser (248 nm) is described. The mass-to-charge ratios of the photodissociation products are determined using mass analysing quadrupole Q of a hybrid mass spectrometer consisting of a double-focusing (BE) part followed by two quadropoles to give BEqQ geometry. Technical aspects of the experiment, as well as experimental results of the photodissociation of the radical cations of toluene, norbornadiene and cycloheptatriene, are presented.

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Journal Rapid Commun. Mass Spectrom.
Aben, I, Pinkse, F. A, Nibbering, N. M. M, & Kistemaker, P. G. (1995). Photodissociation of mass-selected ions in a BEqQ sector mass spectrometer using a pulsed laser. Rapid Commun. Mass Spectrom., 9, 215–220.