Preparation of Molecules in a Single State for Coulomb Explosion Measurements
In recent years extensive work was done both at Argonne National Laboratories (ANL) and at the Weizmann Institute (WI) studying the Coulomb explosion (CE) technique as a method for investigating the structure of molecular species. It was demonstrated that this novel method for measuring nuclear density distribution within small polyatomic molecules, is unique in its ability to provide structural information on many species, and therefore has practical importance.
We intend to extend and develop the method so that the structure of species with well defined internal energy will be studied as a function of the internal energy. These measurements are of major importance in understanding the structure and dynamics of floppy van der Waals complexes, molecules and ions. A description of the methods under development is presented. The methods are based on the preparation of cold negative ions, neutralization by laser photodetachment, and photodissociation which allows for state selection.
KeywordsInternal Energy Argonne National Laboratory Weizmann Institute Coulanb Explosien Relative Kinetic Energy
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