Measurement of the velocity of neutral fragments by the "correlated ion and neutral time of flight" method combined with "velocity-map imaging"

作者：Berthias F^*; Feketeova L; Della Negra R; Dupasquier T; Fillol R; Abdoul Carime H; Farizon B; Farizon M; Maerk T D

来源：Review of Scientific Instruments, 2017, 88(8): 083101.

DOI：10.1063/1.4991828

In the challenging field of imaging molecular dynamics, a novel method has been developed and implemented that allows the measurement of the velocity of neutral fragments produced in collision induced dissociation experiments on an event-by-event basis. This has been made possible by combining a correlated ion and neutral time of flight method with a velocity map imaging technique. This new method relies on a multiparametric correlated detection of the neutral and charged fragments from collision induced dissociation on one single detector. Its implementation on the DIAM device (Device for irradiation of biomolecular clusters) (Dispositif d'Irradiation d'Agregats bio Moleculaires) allowed us to measure the velocity distribution of water molecules evaporated from collision induced dissociation of mass- and energy-selected protonated water clusters. Published by AIP Publishing.

• 出版日期2017-8