Multiple excitation collisional activation

Lee, S.A. Jiao, C.Q. Huang, Y. Preiser, B.S. Multiple Excitation Collisional Activation in FTMS. Rapid Commun. Mass Spectrom. 1993, 7, 819-821. 

In an FT-ICR instrument, fragmentation may be achieved by colliding ions with neutrals (CID) but various other strategies are available, such as collision with surfaces (surface-induced dissociation) or bombardment with ultraviolet or infrared radiation from a laser (ultraviolet photodissociation and multiphoton infrared photodissociation). Dissociation may also be achieved by the absorption of black-body radiation produced by a heated vacuum chamber walls (blackbody infrared dissociation). An advantage of these radiation-induced fragmentation methods is that gas pulses are no longer required. Sustained off-resonance irradiation is the preferred, radiation-based method for FT-ICR MS because it is the simplest to implement and tune. Very low energy and multiple excitation collisional activation techniques are also available. 

Multiple excitation collisional activation Mass spectrometry... 

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